| Web application limits |
| The following table
lists the recommended guidelines for Web applications. |
| Limit |
Maximum value |
Limit type |
Notes |
| Content
database |
300 per Web application |
Supported |
With 300 content databases per
Web application, end user operations such as opening the site or site
collections are not affected. But administrative operations such as creating
a new site collection will experience decrease in performance. We recommend that
you use Windows PowerShell to manage the Web application when a large number
of content databases are present, because the management interface becomes
slow and difficult to navigate. |
| Zone |
5 per Web application |
Boundary |
The number of zones defined for
a farm is hard-coded to 5. Zones include Default, Intranet, Extranet,
Internet, and custom. |
| Managed
path |
20 per Web application |
Supported |
Managed paths are
cached on the Web server, and CPU resources are used to process incoming
requests against the managed path list. |
| Solution
cache size |
300 MB per Web application |
Threshold |
The solution cache allows the
InfoPath Forms service to hold solutions in cache in order to speed up
retrieval of the solutions. If the cache size is exceeded, solutions are
retrieved from disk, which may slow down response times. You can configure
the size of the solution cache by using the Windows PowerShell cmdlet
Set-SPInfoPathFormsService. For more information, see
Set-SPInfoPathFormsService. |
| Site collection |
250,000 per Web
application |
Supported |
The maximum recommended number
of site collections per Web application is 250,000. |
| Note
that this limit is affected by other factors that might reduce the effective
number of site collections that can be supported by a given Web application.
Care must be exercised to avoid exceeding supported limits when a container
object, such as a content database, contains a large number of other objects. |
| For
example, in a farm that contains a large number of Web applications, the
total number of site collections might reach a number that cannot effectively
be supported by farm resources. This can be true even when both the number of
Web applications per farm and the number of site collections per Web
application fall within their supported limits. |
| Similarly,
if a farm contains a smaller total number of content databases, each of which
contains a large number of site collections, farm performance might be
adversely affected long before the supported limit for the number of site
collections is reached. |
| The
following case illustrates this point. |
| Farm A
contains a Web application that has 200 content databases, a supported
configuration. If each of these content databases contains 200 site
collections, the total number of site collections in the Web application will
be 40,000, which falls within supported limits. However, if each content
database contains 2,000 site collections, even though this number is
supported for a content database, the total number of site collections in the
Web application will be 400,000, which exceeds the limit for the number of
site collections per Web application. |
|
|
|
|
| Web server
and application server limits |
| The following table
lists the recommended guidelines for Web servers on the farm. |
| Limit |
Maximum value |
Limit type |
Notes |
| Application pools |
10 per Web server |
Supported |
The maximum number is determined
by hardware capabilities. |
| This
limit is dependent largely upon: |
| The
amount of RAM allocated to the Web servers |
| The
workload that the farm is serving, that is, the user base and the usage
characteristics (a single highly active application pools can reach 10 GB or
more) |
| Content
database limits |
| The following table
lists the recommended guidelines for content databases. |
| Limit |
Maximum value |
Limit type |
Notes |
| Content
database size (general usage scenarios) |
200 GB per content
database |
Supported |
We strongly recommended limiting
the size of content databases to 200 GB, except when the circumstances in the
following rows in this table apply. |
| If
you are using Remote BLOB Storage (RBS), the total volume of remote BLOB
storage and metadata in the content database must not exceed this limit. |
| Content database size (all usage scenarios) |
4 TB per content
database |
Supported |
Content databases of up to 4 TB
are supported when the following requirements are met: |
| Disk
sub-system performance of 0.25 IOPs per GB. 2 IIOPs per GB is recommended for
optimal performance. |
| You must
have developed plans for high availability, disaster recovery, future
capacity, and performance testing. |
| You
should also carefully consider the following factors: |
| Requirements
for backup and restore may not be met by the native SharePoint Server 2010
backup for content databases larger than 200 GB. It is recommended to
evaluate and test SharePoint Server 2010 backup and alternative backup
solutions to determine the best solution for your specific environment. |
| It is
strongly recommended to have proactive skilled administrator management of
the SharePoint Server 2010 and SQL Server installations. |
| The
complexity of customizations and configurations on SharePoint Server 2010 may
necessitate refactoring (or splitting) of data into multiple content
databases. Seek advice from a skilled professional architect and perform
testing to determine the optimum content database size for your
implementation. Examples of complexity may include custom code deployments,
use of more than 20 columns in property promotion, or features listed as not
to be used in the over 4 TB section below. |
| Refactoring
of site collections allows for scale out of a SharePoint Server 2010
implementation across multiple content databases. This permits SharePoint
Server 2010 implementations to scale indefinitely. This refactoring will be
easier and faster when content databases are less than 200 GB. |
| It is
suggested that for ease of backup and restore that individual site
collections within a content database be limited to 100 GB. For more
information, see Site collection limits. |
| For more
information on SharePoint Server 2010 data size planning, see Storage and SQL
Server capacity planning and configuration (SharePoint Server 2010). |
|
| Content
databases of over 4 TB, except for use in document archive scenarios
(described in the row below), are not recommended. Upgrading of site
collections within these content databases is likely to be very difficult and
time consuming. |
| It is
strongly recommended that you scale out across multiple content databases,
rather than exceed 4 TB of data in a single content database. |
| Content database size (document archive scenario) |
No explicit content
database limit |
Supported |
Content databases with no
explicit size limit for use in document archive scenarios are supported when
the following requirements are met: |
| You must
meet all requirements from the “Content database size (all usage scenarios)”
limit earlier in this table, and you should ensure that you have carefully
considered all the factors discussed in the Notes field of that limit. |
| SharePoint
Server 2010 sites must be based on Document Center or Records Center site templates. |
| Less
than 5% of the content in the content database is accessed each month on
average, and less than 1% of content is modified or written each month on
average. |
| Do not
use alerts, workflows, link fix-ups, or item level security on any SharePoint
Server 2010 objects in the content database. |
|
| Document
archive content databases can be configured to accept documents from Content
Routing workflows. |
| For more
information about large-scale document repositories, see Estimate
Performance and Capacity Requirements for Large Scale Document Repositories (http://technet.microsoft.com/en-us/library/ff608068.aspx),
and the Typical large-scale content management scenarios section of the
article Enterprise content storage planning (SharePoint Server 2010). |
| Content
database items |
60 million items including
documents and list items |
Supported |
The largest number of items per
content database that has been tested on SharePoint Server 2010 is 60 million
items, including documents and list items. If you plan to store more than 60
million items in SharePoint Server 2010, you must deploy multiple content
databases. |
| Site collections per content database |
2,000 recommended |
Supported |
We strongly recommended limiting
the number of site collections in a content database to 2,000. However, up to
5,000 site collections in a database are supported. |
| 5,000
maximum |
These limits relate to speed of
upgrade. The larger the number of site collections in a database, the slower
the upgrade. |
|
The limit on the number of site
collections in a database is subordinate to the limit on the size of a
content database that has more than one site collection (200 GB). Therefore,
as the number of site collections in a database increases, the average size
of the site collections it contains must decrease. |
|
Exceeding the 2,000
site collection limit puts you at risk of longer downtimes during upgrades.
If you plan to exceed 2,000 site collections, we recommend that you have a
clear upgrade strategy, and obtain additional hardware to speed up upgrades
and software updates that affect databases. |
|
To set the warning level for the
number of sites in a content database, use the Windows PowerShell cmdlet
Set-SPContentDatabase with the -WarningSiteCount parameter. For more
information, see Set-SPContentDatabase. |
| Remote
BLOB Storage (RBS) storage subsystem on Network Attached Storage (NAS) |
Time to first byte of
any response from the NAS cannot exceed 20 milliseconds |
Boundary |
When SharePoint Server 2010 is
configured to use RBS, and the BLOBs reside on NAS storage, consider the
following boundary. |
| From
the time that SharePoint Server 2010 requests a BLOB, until it receives the
first byte from the NAS, no more than 20 milliseconds can pass. |
|
|
|
|
| Site
collection limits |
| The following table
lists the recommended guidelines for site collections. |
| Limit |
Maximum value |
Limit type |
Notes |
| Web site |
250,000 per site
collection |
Supported |
The maximum recommended number
of sites and subsites is 250,000 sites. |
| You can
create a very large total number of Web sites by nesting subsites. For
example, in a shallow hierarchy with 100 sites, each with 1,000 subsites, you
would have a total of 100,000 Web sites. Or a deep hierarchy with 100 sites,
each with 10 subsite levels would also contain a total of 100,000 Web sites. |
| Note:
Deleting or creating a site or subsite can significantly affect a site’s
availability. Access to the site and subsites will be limited while the site
is being deleted. Attempting to create many subsites at the same time may
also fail. |
| Site collection size |
Maximum size of the
content database |
Supported |
A site collection can be as
large as the content database size limit for the applicable usage scenario.
For more information about the different content database size limits for
specific usage scenarios, see the Content database limits table in this article. |
| In
general, we strongly recommend limiting the size of site collections to 100
GB for the following reasons: |
| Certain
site collection actions, such as site collection backup/restore or the
Windows PowerShell cmdlet Move-SPSite, cause large Microsoft SQL Server
operations which can affect performance or fail if other site collections are
active in the same database. For more information, see Move-SPSite. |
| SharePoint
site collection backup and restore is only supported for a maximum site
collection size of 100 GB. For larger site collections, the entire content
database must be backed up. If multiple site collections larger than 100 GB
are contained in a single content database, backup and restore operations can
take a long time and are at risk of failure. |
|
| List and
library limits |
| The following table lists the recommended guidelines for lists and
libraries. For more information, see Designing large lists and maximizing
list performance (SharePoint Server 2010). |
| Limit |
Maximum value |
Limit type |
Notes |
| List
row size |
8,000 bytes per row |
Boundary |
Each list or library item can
only occupy 8,000 bytes in total in the database. 256 bytes are reserved for
built-in columns, which leaves 7,744 bytes for end-user columns. For details
on how much space each kind of field consumes, see Column limits. |
| File
size |
2 GB |
Boundary |
The default maximum file size is
50 MB. This can be increased up to 2 GB, however a large volume of very large
files can affect farm performance. |
| Documents |
30,000,000 per library |
Supported |
You can create very large
document libraries by nesting folders, or using standard views and site
hierarchy. This value may vary depending on how documents and folders are
organized, and by the type and size of documents stored. |
| Major
versions |
400,000 |
Supported |
If you exceed this limit, basic
file operations—such as file open or save, delete, and viewing the version
history— may not succeed. |
| Items |
30,000,000 per list |
Supported |
You can create very large lists
using standard views, site hierarchies, and metadata navigation. This value
may vary depending on the number of columns in the list and the usage of the
list. |
| Rows
size limit |
6 table rows internal to the
database used for a list or library item |
Supported |
Specifies the maximum number of
table rows internal to the database that can be used for a list or library
item. To accommodate wide lists with many columns, each item may be wrapped
over several internal table rows, up to six rows by default. This is configurable
by farm administrators through the object model only. The object model method
is SPWebApplication.MaxListItemRowStorage. |
| Bulk
operations |
100 items per bulk operation |
Boundary |
The user interface allows a
maximum of 100 items to be selected for bulk operations. |
| List
view lookup threshold |
8 join operations per query |
Threshold |
Specifies the maximum number of
joins allowed per query, such as those based on lookup, person/group, or
workflow status columns. If the query uses more than eight joins, the
operation is blocked. This does not apply to single item operations. When
using the maximal view via the object model (by not specifying any view
fields), SharePoint will return up to the first eight lookups. |
| List
view threshold |
5,000 |
Threshold |
Specifies the maximum number of
list or library items that a database operation, such as a query, can process
at the same time outside the daily time window set by the administrator
during which queries are unrestricted. |
| List
view threshold for auditors and administrators |
20,000 |
Threshold |
Specifies the maximum number of
list or library items that a database operation, such as a query, can process
at the same time when they are performed by an auditor or administrator with
appropriate permissions. This setting works with Allow Object Model Override. |
| Subsite |
2,000 per site view |
Threshold |
The interface for enumerating
subsites of a given Web site does not perform well as the number of subsites
surpasses 2,000. Similarly, the All Site Content page and the Tree View
Control performance will decrease significantly as the number of subsites grows. |
| Coauthoring
in Microsoft Word and Microsoft PowerPoint for .docx, .pptx and .ppsx files |
10 concurrent editors
per document |
Threshold |
Recommended maximum number of
concurrent editors is 10. The boundary is 99. |
| If there
are 99 co-authors who have a single document opened for concurrent editing,
any user after the 100th user sees a "File in use" error and have
to view a read-only copy. |
| More
than 10 co-editors will lead to a gradually degraded user experience with
more conflicts and users will have to go through more iterations to get their
changes to upload successfully. |
| Security scope |
1,000 per list |
Threshold |
The maximum number of unique
security scopes set for a list should not exceed 1,000. |
| A scope
is the security boundary for a securable object and any of its children that
do not have a separate security boundary defined. A scope contains an Access
Control List (ACL), but unlike NTFS ACLs, a scope can include security
principals that are specific to SharePoint Server. The members of an ACL for
a scope can include Windows users, user accounts other than Windows users
(such as forms-based accounts), Active Directory groups, or SharePoint
groups. |
| Page
limits |
| The following table
lists the recommended guidelines for pages. |
| Limit |
Maximum value |
Limit type |
Notes |
| Web
parts |
25 per wiki or Web part page |
Threshold |
This figure is an estimate based
on simple Web Parts. The complexity of the Web parts dictates how many Web
Parts can be used on a page before performance is affected. |
| Security
limits |
| Limit |
Maximum value |
Limit type |
Notes |
| Number of SharePoint groups a user can belong to |
5,000 |
Supported |
This is not a hard limit but it
is consistent with Active Directory guidelines. There are several things that
affect this number: |
| The size
of the user token |
| The
groups cache: SharePoint Server 2010 has a table that caches the number of
groups a user belongs to as soon as those groups are used in access control
lists (ACLs). |
| The
security check time: as the number of groups that a user is a member of
increases, the time that is required for the access check increases also. |
| Users
in a site collection |
2 million per site
collection |
Supported |
You can add millions of people
to your Web site by using Microsoft Windows security groups to manage
security instead of using individual users. |
| This
limit is based on manageability and ease of navigation in the user interface. |
| When you
have many entries (security groups of users) in the site collection (more
than one thousand), you should use Windows PowerShell to manage users instead
of the UI. This will provide a better management experience. |
| Active Directory Principles/Users in a SharePoint group |
5,000 per SharePoint
group |
Supported |
SharePoint Server 2010 enables
you to add users or Active Directory groups to a SharePoint group. |
| Having
up to 5,000 users (or Active Directory groups or users) in a SharePoint group
provides acceptable performance. |
| Fetching
users to validate permissions. This operation takes incrementally longer with
growth in number of users in a group. |
| Rendering
the membership of the view. This operation will always require time. |
| SharePoint
groups |
10,000 per site collection |
Supported |
Above 10,000 groups, the time to
execute operations is increased significantly. This is especially true of
adding a user to an existing group, creating a new group, and rendering group
views. |
| Security
principal: size of the Security Scope |
5,000 per Access Control List
(ACL) |
Supported |
The size of the scope affects
the data that is used for a security check calculation. This calculation
occurs every time that the scope changes. There is no hard limit, but the
bigger the scope, the longer the calculation takes. |
| Limits by
feature |
| This
section lists limits sorted by feature. |
|
| Search
limits |
| The
following table lists the recommended guidelines for Search. |
| Limit |
Maximum value |
Limit type |
Notes |
| SharePoint
search service applications |
20 per farm |
Supported |
Multiple SharePoint search
service applications can be deployed on the same farm, because you can assign
search components and databases to separate servers. The recommended limit of
20 is less than the maximum limit for all service applications in a farm. |
| Crawl databases and database Items |
10 crawl databases per search
service application |
Threshold |
The crawl database stores the
crawl data (time/status, etc.) about all items that have been crawled. The
supported limit is 10 crawl databases per SharePoint Search service
application. |
| 25
million items per crawl database |
The recommended limit is 25
million items per crawl database (or a total of four crawl databases per
search service application). |
| Crawl components |
16 per search service
application |
Threshold |
The recommended limit per
application is 16 total crawl components; with two per crawl database, and
two per server, assuming the server has at least eight processors (cores). |
| The
total number of crawl components per server must be less than 128/(total
query components) to minimize propagation I/O degradation. Exceeding the
recommended limit may not increase crawl performance; in fact, crawl
performance may decrease based on available resources on the crawl server,
database, and content host. |
| Index
partitions |
20 per search service
application; 128 total |
Threshold |
The index partition holds a
subset of the search service application index. The recommended limit is 20.
Increasing the number of index partitions results in each partition holding a
smaller subset of the index, reducing the RAM and disk space that is needed
on the query server hosting the query component assigned to the index
partition. The boundary for the total number of index partitions is 128. |
| Indexed
items |
100 million per search service
application; 10 million per index partition |
Supported |
SharePoint Search supports index
partitions, each of which contains a subset of the search index. The
recommended maximum is 10 million items in any partition. The overall
recommended maximum number of items (e.g., people, list items, documents, Web
pages) is 100 million. |
| Crawl
log entries |
100 million per search
application |
Supported |
This is the number of individual
log entries in the crawl log. It will follow the "Indexed items"
limit. |
| Property
databases |
10 per search service
application;128 total |
Threshold |
The property database stores the
metadata for items in each index partition associated with it. An index
partition can only be associated with one property store. The recommended
limit is 10 property databases per search service application. The boundary
for index partitions is 128. |
| Query
components |
128 per search application;
64/(total crawl components) per server |
Threshold |
The total number of query
components is limited by the ability of the crawl components to copy files.
The maximum number of query components per server is limited by the ability
of the query components to absorb files propagated from crawl components. |
| Scope
rules |
100 scope rules per scope; 600
total per search service application |
Threshold |
Exceeding this limit will reduce
crawl freshness, and delay potential results from scoped queries. |
| Scopes |
200 site scopes and 200 shared
scopes per search service application |
Threshold |
Exceeding this limit may reduce
crawl efficiency and, if the scopes are added to the display group, affect
end-user browser latency. Also, display of the scopes in the search
administration interface degrades as the number of scopes passes the
recommended limit. |
| Display
groups |
25 per site |
Threshold |
Display groups are used for a
grouped display of scopes through the user interface. Exceeding this limit
starts degrading the scope experience in the search administration interface. |
| Alerts |
1,000,000 per search application |
Supported |
This is the tested limit. |
| Content
sources |
50 per search service application |
Threshold |
The recommended limit of 50 can
be exceeded up to the boundary of 500 per search service application.
However, fewer start addresses should be used, and the concurrent crawl limit
must be followed. |
| Start
addresses |
100 per content source |
Threshold |
The recommended limit can be
exceeded up to the boundary of 500 per content source. However, the more
start addresses you have, the fewer content sources should be used. When you
have many start address, we recommend that you put them as links on an html
page, and have the HTTP crawler crawl the page, following the links. |
| Concurrent
crawls |
20 per search application |
Threshold |
This is the number of crawls
underway at the same time. Exceeding this number may cause the overall crawl
rate to decrease. |
| Crawled
properties |
500,000 per search application |
Supported |
These are properties that are
discovered during a crawl. |
| Crawl
impact rule |
100 |
Threshold |
Recommended limit of 100 per
farm. The recommendation can be exceeded; however, display of the site hit
rules in the search administration interface is degraded. At approximately
2,000 site hit rules, the Manage Site Hit Rules page becomes unreadable. |
| Crawl
rules |
100 per search service
application |
Threshold |
This value can be exceeded;
however, display of the crawl rules in the search administration interface is
degraded. |
| Managed
properties |
100,000 per search service
application |
Threshold |
These are properties used by the
search system in queries. Crawled properties are mapped to managed
properties. |
| Mappings |
100 per managed property |
Threshold |
Exceeding this limit may
decrease crawl speed and query performance. |
| URL
removals |
100 removals per operation |
Supported |
This is the maximum recommended
number of URLs that should be removed from the system in one operation. |
| Authoritative pages |
1 top level and minimal
second and third level pages per search service application |
Threshold |
The recommended limit is one
top-level authoritative page, and as few second -and third-level pages as
possible to achieve the desired relevance. |
| The
boundary is 200 per relevance level per search application, but adding
additional pages may not achieve the desired relevance. Add the key site to
the first relevance level. Add more key sites at either second or third
relevance levels, one at a time, and evaluate relevance after each addition
to ensure that the desired relevance effect is achieved. |
| Keywords |
200 per site collection |
Supported |
The recommended limit can be
exceeded up to the maximum (ASP.NET-imposed) limit of 5,000 per site
collection given five Best Bets per keyword. If you exceed this limit,
display of keywords on the site administration user interface will degrade.
The ASP.NET-imposed limit can be modified by editing the Web.Config and
Client.config files (MaxItemsInObjectGraph). |
| Metadata
properties recognized |
10,000 per item crawled |
Boundary |
This is the number of metadata
properties that can be determined and potentially mapped or used for queries
when an item is crawled. |
| User
Profile Service limits |
| The
following table lists the recommended guidelines for User Profile Service. |
| Limit |
Maximum value |
Limit type |
Notes |
| User
profiles |
2,000,000 per service application |
Supported |
A user profile service
application can support up to 2 million user profiles with full social
features functionality. This number represents the number of profiles that
can be imported into the people profile store from a directory service, and
also the number of profiles a user profile service application can support
without leading to performance decreases in social features. |
| Social
tags, notes and ratings |
500,000,000 per social database |
Supported |
Up to 500 million total social
tags, notes and ratings are supported in a social database without
significant decreases in performance. However, database maintenance
operations such as backup and restore may show decreased performance at that
point. |
| Content
deployment limits |
| The following table
lists the recommended guidelines for content deployment. |
| Limit |
Maximum value |
Limit type |
Notes |
| Content deployment jobs running on different paths |
20 |
Supported |
For concurrently running jobs on
paths that are connected to site collections in the same source content
database, there is an increased risk of deadlocks on the database. For jobs
that must run concurrently, we recommend that you move the site collections
into different source content databases. |
|
|
| Concurrent
running jobs on the same path are not possible. |
| If you
are using SQL Server snapshots for content deployment, each path creates
a snapshot. This increases the I/O requirements for the source database. |
| For more information, see About deployment paths and jobs. |
| Blog
limits |
| The following table
lists the recommended guidelines for blogs. |
| Limit |
Maximum value |
Limit type |
Notes |
| Blog
posts |
5,000 per site |
Supported |
The maximum number of blog posts
is 5,000 per site. |
| Comments |
1,000 per post |
Supported |
The maximum number of comments
is 1,000 per post. |
| Workflow
limits |
| The following table
lists the recommended guidelines for workflow. |
| Limit |
Maximum value |
Limit type |
Notes |
| Workflow postpone threshold |
15 |
Threshold |
15 is the maximum number of
workflows allowed to be executing against a content database at the same
time, excluding instances that are running in the timer service. When this
threshold is reached, new requests to activate workflows will be queued to be
run by the workflow timer service later. As non-timer execution is completed,
new requests will count against this threshold. This is limit can be
configured by using the Set-SPFarmConfig Windows PowerShell cmdlet. For more
information, see Set-SPFarmConfig. |
| Note:
This limit does not refer to the total number of workflow instances that can
be in progress. Instead, it is the number of instances that are being
processed. Increasing this limit increases the throughput of starting and
completing workflow tasks but also increases load against the content
database and system resources. |
| Workflow
timer batch size |
100 |
Threshold |
The number of events that each
run of the workflow timer job will pick up and deliver to workflows. It is
configurable by using Windows PowerShell. To allow for additional events, you
can run additional instances of the Microsoft SharePoint Foundation Workflow
Timer Service. |
| Managed
Metadata term store (database) limits |
| The following table
lists the recommended guidelines for managed metadata term stores. |
| Limit |
Maximum value |
Limit type |
Notes |
| Maximum
number of levels of nested terms in a term store |
7 |
Supported |
Terms in a term set can be
represented hierarchically. A term set can have up to seven levels of
terms (a parent term, and six levels of nesting below it.) |
| Maximum
number of term sets in a term store |
1,000 |
Supported |
You can have up to 1,000 term
sets in a term store. |
| Maximum
number of terms in a term set |
30,000 |
Supported |
30,000 is the maximum number of
terms in a term set. |
|
| Additional
labels for the same term, such as synonyms and translations, do not count as
separate terms. |
| Total
number of items in a term store |
1,000,000 |
Supported |
An item is either a term or a
term set. The sum of the number of terms and term sets cannot exceed
1,000,000. Additional labels for the same term, such as synonyms and
translations, do not count as separate terms. |
|
|
| You
cannot have both the maximum number of term sets and the maximum number of
terms simultaneously in a term store. |
| Visio
Services limits |
| The following table
lists the recommended guidelines for instances of Visio Services in Microsoft
SharePoint Server 2010. |
| Limit |
Maximum value |
Limit type |
Notes |
| File size of Visio Web drawings |
50 MB |
Threshold |
Visio Services has a
configuration setting that enables the administrator to change the maximum
size of Web drawings that Visio processes. |
| Larger
file sizes have the following side effects: |
| Increase
in the memory footprint of Visio Services. |
| Increase
in CPU usage. |
| Reduction
in application server requests per second. |
| Increase
overall latency. |
| Increase
SharePoint farm network load |
| Visio Web drawing recalculation time-out |
120 seconds |
Threshold |
Visio Services has a
configuration setting that enables the administrator to change the maximum
time that it can spend recalculating a drawing after a data refresh. |
| A larger
recalculation time-out leads to: |
| Reduction
in CPU and memory availability. |
| Reduction
in application requests per second. |
| Increase
in average latency across all documents. |
| A
smaller recalculation time-out leads to: |
| Reduction
of the complexity of diagrams that can be displayed. |
| Increase
in requests per second. |
| Decrease
in average latency across all documents. |
| Visio
Services minimum cache age (data connected diagrams) |
Minimum cache age: 0 to
24hrs |
Threshold |
Minimum cache age applies to
data connected diagrams. It determines the earliest point at which the
current diagram can be removed from cache. |
| Setting
Min Cache Age to a very low value will reduce throughput and increase
latency, because invalidating the cache too often forces Visio to recalculate
often and reduces CPU and memory availability. |
| Visio
Services maximum cache age (non-data connected diagrams) |
Maximum cache age: 0 to
24hrs |
Threshold |
Maximum cache age applies to
non-data connected diagrams. This value determines how long to keep the
current diagram in memory. |
| Increasing
Max Cache Age decreases latency for commonly requested drawings. |
| However,
setting Max Cache Age to a very high value increases latency and slows
throughput for items that are not cached, because the items already in cache
consume and reduce available memory. |
| SharePoint
Web Analytics service limits |
| The following table
lists the recommended guidelines for the SharePoint Web Analytics service. |
| Limit |
Maximum value |
Limit type |
Notes |
| SharePoint
entities |
30,000 per farm when Web
Analytics is enabled |
Supported |
Do not enable Web Analytics if
your farm contains, or is expected to contain, more than 30,000 SharePoint
entities, which include all Web applications, site collections, and sites.
This number is not exact, because different combinations of SharePoint entities
might have a greater or lesser effect on farm performance than the tested
scenario, which is described in the article Capacity requirements for the Web
Analytics Shared Service in SharePoint Server 2010. However, as the number of
SharePoint entities in your farm closely approaches this limit, farm
performance might fall to unacceptable levels. |
| PerformancePoint
Services limits |
| The following table
lists the recommended guidelines for PerformancePoint Services in Microsoft
SharePoint Server 2010. |
| Limit |
Maximum value |
Limit type |
Notes |
| Cells |
1,000,000 per query on Excel
Services data source |
Boundary |
A PerformancePoint scorecard
that calls an Excel Services data source is subject to a limit of no more
than 1,000,000 cells per query. |
| Columns
and rows |
15 columns by 60,000 rows |
Threshold |
The maximum number of columns
and rows when rendering any PerformancePoint dashboard object that uses a
Microsoft Excel workbook as a data source. The number of rows could change
based on the number of columns. |
| Query on
a SharePoint list |
15 columns by 5,000 rows |
Supported |
The maximum number of columns
and row when rendering any PerformancePoint dashboard object that uses a
SharePoint list as a data source. The number of rows could change based on
the number of columns. |
| Query on
a SQL Server data source |
15 columns by 20,000 rows |
Supported |
The maximum number of columns
and row when rendering any PerformancePoint dashboard object that uses a SQL
Server table data source. The number of rows could change based on the number
of columns. |
| Word
Automation Services limits |
| The following table
lists the recommended guidelines for Word Automation Services. |
| Limit |
Maximum value |
Limit type |
Notes |
| Input
file Size |
512 MB |
Boundary |
Maximum file size that can be
processed by Word Automation Services. |
| Frequency
with which to start conversions (minutes) |
1 minute (recommended) |
Threshold |
This setting
determines how often the Word Automation Services timer job executes. A lower
number leads to the timer job running faster. Our testing shows that it
is most useful to run this timer job once per minute. |
| 15
minutes (default) |
| 59
minutes (boundary) |
| Number of conversions to start per conversion process |
For PDF/XPS output
formats: 30 x MFor all other output formats: 72 x M Where M is the
value of Frequency with which to start conversions (minutes) |
Threshold |
The number of conversions to
start affects the throughput of Word Automation Services. |
| If
these values are set higher than the recommended levels then some
conversion items may start to fail intermittently and user permissions may
expire. User permissions expire 24 hours from the time that a conversion job
is started. |
| Conversion
job size |
100,000 conversion items |
Supported |
A conversion job includes one or
more conversion items, each of which represents a single conversion to be
performed on a single input file in SharePoint. When a conversion job is
started (using the ConversionJob.Start method), the conversion job and all
conversion items are transmitted over to an application server which then
stores the job in the Word Automation Services database. A large number of
conversion items will increase both the execution time of the Start method
and the number of bytes transmitted to the application server. |
| Total active conversion processes |
N-1, where N is the
number of cores on each application server |
Threshold |
An active conversion
process can consume a single processing core. Therefore, customers should not
run more conversion processes than they have processing cores in their
application servers. The conversion timer job and other SharePoint
activities also require occasional use of a processing core. |
| We
recommend that you always leave 1 core free for use by the conversion timer
job and SharePoint. |
| Word
Automation Services database size |
2 million conversion
items |
Supported |
Word Automation Services
maintains a persistent queue of conversion items in its database. Each
conversion request generates one or more records. |
| Word
Automation Services does not delete records from the database automatically,
so the database can grow indefinitely without maintenance. Administrators can
manually remove conversion job history by using the Windows PowerShell cmdlet
Remove-SPWordConversionServiceJobHistory. For more information, see
Remove-SPWordConversionServiceJobHistory. |
| SharePoint
Workspace limits |
| The following table
lists the recommended guidelines for Microsoft SharePoint Workspace 2010. |
| Limit |
Maximum value |
Limit type |
Notes |
| SharePoint
Workspace synchronization |
30,000 items per list |
Boundary |
SharePoint Workspace will not
synchronize lists that have more than 30,000 items. This restriction exists
because the time to download a list that has more than 30,000 items is very
long, and resource usage is high. |
| SharePoint
Workspace synchronization |
1800 documents limit in
SharePoint Workspace |
Boundary |
Users are warned when they have
more than 500 documents in SharePoint Workspace, but they can continue to add
documents. |
| OneNote
limits |
| The following table
lists the recommended guidelines for Microsoft OneNote Services. |
| Limit |
Maximum value |
Limit type |
Notes |
| Number
of Sections and Section Groups in a OneNote Notebook (on SharePoint) |
See limit for
"Documents" in List and library limits |
|
Each section counts as one
folder and one document in the list. Each section group counts as one folder
and one document in the list. |
| Maximum
size of a section |
See limit for "File
size" in List and library limits |
|
This maximum excludes any
images, embedded files, and XPS printouts to OneNote that are larger than 100
KB. Images and embedded files larger than 100 KB are split out into their own
binary files. This means that a section with 100 KB of typed data and four
embedded Word documents of 1 MB each will be considered a 100 KB section. |
| Maximum
size of an image, embedded file, and XPS OneNote printout in a OneNote
section. |
See limit for "File
size" in List and library limits |
|
Each item is stored as a
separate binary file and is therefore subject to file size limits. Each print
operation to OneNote will result in one XPS printout binary, even if the
printout contains multiple pages. |
| Maximum
size of all images, embedded files, and XPS printouts in a single OneNote
page. |
Default limit is double the
"File size" limit. |
Threshold |
This applies to embedded content
in a single OneNote page, not a Section or Notebook. If users encounter this,
they will see the following error in OneNote: jerrcStorageUrl_HotTableFull
(0xE0000794). Users can work around this by splitting embedded content into
different pages and deleting previous versions of the page. If users have to
adjust this value (“Max Hot Table Size”), the effective limit is half of the
absolute value they define (for example, specifying a 400 MB max hot table
size means that the maximum size of all embedded content on a page is limited
to 200 MB). |
| Merge
operations |
One per CPU core per
Web server |
Boundary |
OneNote merges combine changes
from multiple users who are co-authoring a notebook. If no CPU core is
available to run a merge, a conflict page is generated instead, which forces
the user perform the merge manually). |
| This
limit applies whether OneNote is running as a client application or as a
Microsoft Office Web Apps. |
| Office Web
Application Service limits |
| The following table
lists the recommended guidelines for Office Web Apps. Office client
application limits also apply when an application is running as a Web app. |
| Limit |
Maximum value |
Limit type |
Notes |
| Cache
size |
100 GB |
Threshold |
Space available to render
documents, created as part of a content database. By default, the cache
available to render documents is 100 GB. We do not recommend that you
increase the available cache. |
| Renders |
One per document per second per
CPU core per application server (maximum eight cores) |
Boundary |
This is the measured average
number of renders that can be performed of "typical" documents on
the application server over a period of time. |
| Project
Server limits |
| The following table
lists the recommended guidelines for Microsoft Project Server. For more
information about how to plan for Project Server, see Planning and
architecture for Project Server 2010. |
| Limit |
Maximum value |
Limit type |
Notes |
| End of
project time |
Date: 12/31/2049 |
Boundary |
Project plans cannot extend past
the date 12/31/2049. |
| Deliverables
per project plan |
1,500 deliverables |
Boundary |
Project plans cannot contain
more than 1,500 deliverables. |
| Number
of fields in a view |
256 |
Boundary |
A user cannot have more than 256
fields added to a view that they have defined in Project Web App. |
| Number
of clauses in a filter for a view |
50 |
Boundary |
A user cannot add a filter to a
view that has more than 50 clauses in it. |
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