Thủ thuật Sharepoint 2010 part 48 pot

Exporting and Importing Sites, Lists, and Libraries New in SharePoint 2010 is the capability to export lists, libraries, and sites through the SharePoint 2010 Central Administration user

Versioning can be loosely compared to the Recycle Bin in that it provides self-service recovery

of content for users — for example, if data loss occurs as the result of overwriting a document Through versioning, SharePoint 2010 users can keep multiple versions of the same document in a document library; and in the event of an undesired change, such as an overwritten document or cor-ruption, users can easily restore the previous version

Versioning is configured by the site collection administrator on a per-site basis and is not enabled by default

Versioning accepts the following configurations:

No Versioning

➤

➤ — The No versioning setting means prior versions of documents and their subsequent history, including comments, are not recoverable No versioning is the default setting

Create Major Versions

➤

➤ — This setting means that each iteration of a document becomes a full version of the document, using sequentially numbered versions (e.g., 1.0, 2.0, 3.0, etc) Users with permissions to the document library may view each updated version of a docu-ment Note that this setting does not differentiate between draft versions and published versions

Create Major and Minor Versions

➤

➤ — This setting means that documents can exist in one of two possible states, as denoted by their extension: Versions with a 0 extension represent a major version, whereas versions with a 1 through 9 extension represent a minor version of a document This versioning setting provides the greatest degree of security granularity because

in most scenarios, only users who can edit major versions can edit the minor versions associ-ated with that item, whereas read-only users can only view the major versions

Site collection administrators should manage versioning proactively due to the manner in which versions are maintained Versions of files and documents are not represented as the differential between two or more documents, but as complete, new copies of those documents For example, if

a user opens a document and makes a minor grammatical modification and saves the document as

a new version, it becomes a completely new document, with those changes and the previous version intact You should proactively manage versioning by educating site collection administrators, estab-lishing quotas on site collections in a web application, and monitoring storage utilization as needed Figure 12-4 shows an example version history Lack of attention to proper versioning implementa-tion is one of the more common causes of Content Database growth due to overuse of versions, as well as causing restores of files from backups because of lack of use of versions

FIguRE 12-4

enabling and Configuring Versioning

To enable and configure versioning for libraries, follow these steps:

1 Select the library for which you want to enable versioning

2 From the Ribbon, select ➪ Library Tools ➪ Library ➪ Library Settings (see Figure 12-5)

FIguRE 12-5

3 On the Document Library Settings page, in the General Settings section, click Versioning settings

4 If you want to require content approval for your document library, click Yes in the Content Approval section If you enable Content Approval, the Draft Item Security section will light

up, giving you control over how items are handled before they are approved

5 The Document Version History section, shown in Figure 12-6, allows you to configure how version are handled Your options are to disable versions completely, create only major versions,

or allow major and minor versions, which are known as drafts If you enable versions, you can also limit the number of major and minor versions that are allowed This is an important step for keeping your database sizes under control

FIguRE 12-6

1 Select the list for which you want to enable versioning.

2 From the Ribbon, select List Tools ➪ List ➪ List Settings (see Figure 12-7)

FIguRE 12-7

3 On the List Settings page, click Versioning settings

4 On the Version settings page, click Yes under Content Approval if you want to require content approval for this list Much like with document libraries, when you enable content approval you can control the Draft Item Security at the bottom of the page

5 In the Item Version History section, shown in Figure 12-8, you can configure whether a new version is created when a list item is edited If that is turned on, you also get the option to control how many major versions of each item are allowed If Content Approval is enabled you then can also control how many minor versions are kept

FIguRE 12-8

6 If Content Approval is turned on you also have the option of limiting who can see list items that are drafts In most cases drafts should only be visible to the author of the item and users that have the ability to approve them

Exporting and Importing Sites, Lists, and Libraries

New in SharePoint 2010 is the capability to export lists, libraries, and sites through the SharePoint 2010 Central Administration user interface, in addition to new Windows PowerShell support and con-tinued support of the SharePoint Administration Tool (STSADM) These new capabilities are based

on PRIME (Publishing, Rollback, Import, Migration, Export), which was introduced in Windows SharePoint Services 3.0 PRIME is a feature for content migration from a source site to a destination site The Content Migration application programming interface (API) provides a simple and flex-ible solution for migrating content between SharePoint sites You can export the content related to

a SharePoint Web site, along with any dependencies (e.g., security, roles, versioning, workflow, and

other metadata), into a single or multiple XML-formatted files called content migration packages

After import to the destination site, the packaged data is extracted and interpreted Content migra-tion packages are portable, meaning you can also save the packages to a file server before migrating

to a different server

While the intention of the content deployment was to, well, deploy content, it can also be used as

a rudimentary means of content recovery It can be used to export lists or libraries that are of high importance (like the ones where you have your résumé, for instance) giving you a quick way to protect that data It has another important function — getting that data back into SharePoint Backups are great, but knowing how to get your backed up information back into production could be the dif-ference between an “Atta boy!” and an “Outta here!” If you only need a specific list or library to be restored, you can use content deployment to shuffle content from a database restored to a different environment back to production You could also use content deployment to move content between test and production environments

exporting sites, lists, and libraries with Windows Powershell

New Windows PowerShell cmdlets provide greater granularity than their SharePoint Administration Tool command-line operation equivalents With the new Windows PowerShell Export-SPWeb cmdlet, you can export not only a site like you could in SharePoint 2007, but also lists and libraries, which can be restored into the same or other server farms

To export (back up) a site, list or library with Windows PowerShell, enter the following cmdlet in the Microsoft SharePoint 2010 Management Shell:

Export-SPWeb -identity <Url or Guid> -path <drive:\destination>

The following options are available to the backup operation using Windows PowerShell:

To forcibly perform the export operation, use the

➤

over-write an existing file

To stop the export process in the event of a warning or error, use the

➤

HaltOnWarning switches

To preserve time stamps, security information, and user data, you must use the

➤

➤

IncludeUserSecurity switch

To specify which type of file and list item version history should be included in the export,

➤

➤

use the IncludeVersions parameter A description of the values follows:

Last major version for files and list items (default)

➤

➤

The current version, either the last major or the last minor

➤

➤

Last major and last minor versions for files and list items

➤

➤

All versions for files and list items

➤

➤

compression process.

To suppress the generation of an export log fi le, use the

➤

export log is generated in the same location as the export package

To specify whether or not the backup should be executed against a snapshot, use the

➤

➤

UseSqlSnapshot switch

To see all of the parameters for this any or any PowerShell command, use the

following syntax from the SharePoint 2010 Management Shell:

Get-help Export-SPWeb

To export a site, provide Export-SPWeb with the URL to the web To export a list or library, provide Export-SPWeb with the URL to the specifi c list or library Below are two examples The fi rst exports

an entire site; the second only backs up a library called Docs in that web

Export-SPWeb http://sharepoint.contoso.com/team -Path “team export.cmp”

Export-SPWeb http://sharepoint.contoso.com/team/Docs -Path docs.cmp

exporting sites, lists, and libraries with sTsaDM

If you are reading this book, we can probably tell a few things about you You probably sat at the front of the class and ruined the curve for all your classmates You’re an exceptional SharePoint administrator, are better looking than your peers, and can probably dance like Fred Astaire Either that or you are one of the authors’ mothers Regardless, if you have taken anything from this book hopefully you have picked up that Windows PowerShell should be your command line weapon of choice for SharePoint 2010 But if you have slower, less enlightened counterparts you may need to know how to do all this fancy exporting and importing with STSADM This section covers that too

To export (back up) a site with the SharePoint Administration Tool, open up a command prompt and change directories to the Bin directory of the SharePoint Root (c:\program files\common files\microsoft shared\web server extensions\14\bin) You can use the export operation

to export lists or webs Here is the usage

STSADM -o export -url <Url> -filename <drive:\destination>

To overwrite an existing content migration package of the same name and location, use the

➤

➤

-overwrite parameter

To stop the export process in the event of a warning or error, use the

➤

haltonwarning switches

To preserve time stamps, security information, and user data, you must use the

➤

➤

includeusersecurity switch

To specify which type of fi le and list item version history should be included in the export,

➤

➤

use the versions parameter A description of the values follows:

Last major version for fi les and list items (default)

➤

➤

The current version, either the last major or the last minor

➤

➤

Last major and last minor versions for fi les and list items

➤

➤

All versions for fi les and list items

➤

➤

To disable fi le compression in the export package, use the

➤

provides the same performance improvement with STSADM as it does with PowerShell

To suppress the generation of an export log fi le, use the

➤

export log is generated in the same location as the export package

To specify whether or not the backup should be executed against a snapshot, use the

➤

➤

usesqlsnapshot switch

exporting sites and lists with Central administration

While PowerShell and STSADM do very impressive jobs of exporting, sometimes you just need a comfortable, mouse-friendly way to do your tasks Get your mousing fi nger stretched and ready to

go, because you can also export sites and lists within Central Administration

In the next section we will discuss how to import the lists and libraries that are

being exported in the following steps Observant readers will notice there is no

section on how to import lists and libraries with Central Administration That’s

because there is no way to do imports in Central Administration You’ll have to

use one of the command line methods covered below.

To export (back up) a site or list through Central Administration:

1 From the SharePoint 2010 Central Administration home page, select Backup and Restore

2 On the Backup and Restore page, select Export a site or list under Granular Backup

3 On the Site or List Export page:

a Select a site collection from the list of available site collections where the site or list to

be exported resides

b In the File location section, type the Universal Naming Convention (UNC) path of the backup folder, as shown in Figure 12-9

e Click Start Export to begin the export process.

FIguRE 12-9

Workfl ow is not included in packages created through Central Administration,

Windows PowerShell, or STSADM content deployment packages Nor are

alerts This is because the tool we’re using is focused on content deployment, so

functionality that is not content is not always brought over.

importing sites, lists, and libraries with Windows Powershell

To import (restore) a site, list, or library with Windows PowerShell, enter the following command

in the Microsoft SharePoint 2010 Management Shell:

Import-SPWeb -identity <Url or Guid> -path <drive:\destination>

The following options are available to the import operation using Windows PowerShell:

To stop the import process in the event of a warning or error, use the

➤

HaltOnError switches

To preserve time stamps, security information, and user data, you must use the

➤

➤

IncludeUserSecurity switch

To suppress the generation of an import log fi le, use the

➤

import log is generated in the same location as the import package

To specify how to resolve situations in which a fi le to be imported to a site already exists in

➤

➤

that site, including options to add a new version, overwrite the fi le, and delete all versions prior to insert, or to ignore the fi le as it exists, use the UpdateVersions switch A description

of the values follows:

Add new versions to the current fi le (default)

➤

➤

Overwrite the fi le and all of its versions (delete then insert)

➤

➤

Ignore the fi le if it exists on the destination

➤

➤

If you want to only describe the effect of the command, rather than actually perform the

➤

➤

operation, use the WhatIf switch

When restoring sites, lists, and libraries using the Import-SPWeb cmdlet, all imported

list or library items overwrite the previous data unless the -UpdateVersions

parameter is passed in the operation, which requires versioning to be enabled on

the destination list or library Using -UpdateVersions enables you to restore the

information contained in the backup without overwriting new items created in

the destination list or library.

importing sites, lists, and libraries with sTsaDM

If you are forced to, or if you’ve lost a dare, you can also use STSADM to import sites, lists, or libraries:

STSADM -o import -url <Url> -filename <drive:\destination>

The following options are available to the import operation in STSADM:

To stop the import process in the event of a warning or error, use the

➤

haltonerror switches

To preserve time stamps, security information, and user data, you must use the

➤

➤

includeusersecurity switch

To specify which type of fi le and list item version history should be included in the import,

➤

➤

use the updateversions parameter A description of the values follows:

To suppress the generation of an import log fi le, use the

➤

import log is generated in the same location as the import package

To suppress the output of import progress information to the display window, use the

➤

switch This parameter is recommended for better performance, as the buffer of the display window is small compared to writing a fi le

When using the preceding import and export commands, you should confi rm

you are a member of the WSS_ADMIN_WPG local group on the computer where

Microsoft SharePoint Server 2010 is installed to avoid errors and ensure that the

operation is completed successfully.

When restoring sites and subsites, the URL specifi ed to be restored to must have

the same template applied as the backup For example, if a site were created using

the STS#0 template, the destination site must also use the STS#0 template.

backing up and Restoring Site collections

Sites and site collection backup and restore in SharePoint 2010 can be accomplished through the SharePoint Administration Tool (STSADM) in addition to Windows PowerShell and Central Administration Site and site collection backup and restore is commonly used either to recover con-tent that has been permanently deleted from the second-stage Recycle Bin or to recover corrupted data or pages

While creating site collection backups may seem like a compelling solution to achieve continuity, it should only be used in conjunction with an existing overall solution, and limited to use on only the most critical site collections of 15GB or smaller, as it is resource-intensive from a time, storage, and processing perspective

Backing Up and restoring site Collections Using Windows Powershell

Not only can you use Windows PowerShell for exporting and importing sites, you can also use it to back up and restore entire site collections This section will cover that

The cmdlet Backup-SPSite will make a single fi le backup of a site collection In contrast to the exports we covered previously, these backups are full fi delity They back up non-content objects like workfl ow and alerts Like their content deployment counterparts, site collection backups are portable and can be shuffl ed around on a farm, or restored to a different farm entirely as long as the destination farm is at the same build or later than the source farm