Restores the most recent full disk and cloud backup created with LiteSpeed and optionally differential and transaction log backups. You can use this extended stored procedure to automate restore operations even if backup files have unique names.
NOTE: A database cannot be restored unless the restore process has exclusive access to the database. No user connections can exist when performing a database restore.
This topic covers:
EXEC master.dbo.xp_restore_automated
[@database = 'database_name'
[, @datafilepath = 'path']
[, @logfilepath = 'path'] ]
, ( @filename = 'backup_filename' | ( @backuppath = 'path'
, @backupextension = 'extensions'
, @checksubfolders = 0 | 1 ) ) [,...n]
, @sourceserver = 'server_name'
, @sourcedatabase = 'database_name'
, @backuptype = N'option',
[, ( @encryptionkey = 'encryption_key' | @jobp = 'encrypted_key' ) ]
[, @with = 'additional_with_parameters'] [,...n]
[, @withreplace = 0 | 1 ]
[, @logging = 0 | 1 | 2 ]
[, @affinity = 0..2147483648]
[, @throttle = 1..100]
[, @ioflag = 'DISK_RETRY_COUNT=n']
[, @ioflag = 'DISK_RETRY_WAIT=n']
[, @buffercount = 'buffer_count']
[, @maxtransfersize = 'maximum_transfer_size']
[, @restoreasreadonly = 0 | 1]
[, @restoreascompressed = 0 | 1]
[, @dryrun = 0 | 1]
[, @dropdatabaseonfailure = 0 | 1 ]
[, @dropdatabaseonsuccess = 0 | 1 ]
EXEC master.dbo.xp_restore_automated
@database = N'filegroups' ,
@filename = N'test\test.bak',
@sourceserver = N'test\test',
@sourcedatabase = N'filegroups',
@backuptype = N'diff',
@CloudVendor = N'AmazonS3',
@CloudBucketName = N'test',
@CloudAccessKeyEnc = N'******',
@CloudSecretKeyEnc = N'*******',
@UseSSL = 1,
@CloudGovRegion = 1,
@proxyhost = N'10.1.1.1',
@proxyport = 80,
@proxylogin = N'test',
@ProxyPasswordEnc = N'******',
@affinity = 0,
@logging = 0,
@DontUseReplication = 1,
@withreplace = 1,
@checkdb = 1,
@checkdbphysicalonly = 1,
@checkdbnoindex = 1,
@checkdbnoinfomessages = 1,
@read_write_filegroups = 1,
@returndetails = 1,
@with = N'STATS = 10'
exec master.dbo.xp_restore_automated
@database = N'db-ar'
, @backuppath = N''
, @backupextension = N''
, @checksubfolders = 0
, @sourceserver = N'SOURCE\SERVER'
, @sourcedatabase = N'source-db'
, @backuptype = N'diff'
, @affinity = 0
, @logging = 0
, @DontUseReplication = 1
, @checkdb = 1
, @checkdbphysicalonly = 1
, @checkdbnoindex = 1
, @checkdbnoinfomessages = 1
, @with = N'RECOVERY'
, @with = N'STATS = 10'
, @CloudVendor = N'GoogleStorage'
, @CloudBucketName = N'bucketname'
, @CloudAccessKey = N'***' -- my key'
, @CloudSecretKey = N'***' -- my key'
Tips:
To see the list of accepted arguments and data types for arguments, execute the following:
exec master.dbo.<procedure_name> show_help
To convert the script for use with the command-line utilities, execute the following:
exec master.dbo.<procedure_name> show_cmd, <xp_arguments>
Processor affinity designates specific processors to run LiteSpeed, while not allowing LiteSpeed to run on the remaining processors.
This argument accepts decimal values and hexadecimal values. If a value begins with "0x" it is interpreted as hexadecimal. A positive 64-bit integer value translates to a binary mask where a value of 1 designates the corresponding processor to be able to run the LiteSpeed process.
NOTE: 32-bit Windows is internally limited to a 32-bit mask.
For example, you need to select processors 2, 3, and 6 for use with LiteSpeed. Number the bits from the right to left. The rightmost bit represents the first processor. Set the second, third, and sixth bits to 1 and all other bits to 0. The result is binary 100110, which is decimal 38 or hexadecimal 0x26. Review the following for additional information:
|
Decimal Value |
Binary Bit Mask |
Allow LiteSpeed Threads on Processors |
|---|---|---|
| 0 | 0 | All (default) |
|
1 |
1 |
1 |
|
3 |
11 |
1 and 2 |
| 7 | 111 | 1, 2 and 3 |
|
38 |
100110 |
2, 3, and 6 |
| 205 | 11001101 | 1, 3, 4, 7, and 8 |
Tip: Before you start tuning the CPU Throttle or Affinity parameters to adjust backup performance, try limiting the number of threads. If you decide to use an affinity value other than default, it is recommended that you limit the threading as well. You may also want to consider using Adaptive Compression to maintain backup performance. For more information, see Adaptive Compression.
Specifies a point in time to restore from where the time is measured in days, hours, minutes and seconds from the restore time.
Set 0's for periods not used.
@ARPeriod = N'DD.HH:MM:SS'
Specifies a point in time to restore from: year, month, day, hours, minutes, seconds.
@ARPointInTime = N'YYYY-MM-DD HH:MM:SS'
Specifies filepaths to include in both backup and restore operations. The filepath can be either a single file or a directory. If it is a directory, then LiteSpeed recursively includes all files and subdirectories. All attached files are encrypted and compressed, with all pertinent backup parameters supported. This feature works for disk, tape, TSM, and Double Click Restore as well. You can supply multiple instances of this argument.
When used within the context of a restore operation, the path parameter can be expanded to include a new destination. This form will take the syntax of <file_path> to <new_file_path>. The new filepath can be used to specify a new location but cannot rename a file.
This argument only restores the attached files. It does not restore the database, just the files that were attached to that backup.
NOTES:
When looking for database backups, LiteSpeed will only consider backup files that have the extensions you specify. The value of this parameter is a list of extensions, separated with commas. No value or asterisk (*) specifies any file extension.
Specifies the directory where to search for the backup files.
Specifies backup types to use for the restore. This argument accepts one of the following values:
Specifies the number of SQL Server buffers available for a LiteSpeed operation. The default value is set by SQL Server.
Checks database integrity after restore. This argument accepts one of the following values:
Checks data purity validations on every column value in all rows of the table or tables in the database. This argument accepts one of the following values:
Checks logical consistency on an indexed view, XML indexes, and spatial indexes after restore. This argument accepts one of the following values:
Checks the database but does not check the index. This argument accepts one of the following values:
Causes check database to suppress all informational messages. after restore. This argument accepts one of the following values:
Checks physical structure of the database only. This argument accepts one of the following values:
Causes check database to obtain locks instead of using an internal database snapshot. This includes a short-term exclusive (X) lock on the database. This argument accepts one of the following values:
Specifies whether to use subfolders to look for database backups. This argument accepts one of the following values:
The @CloudAccessKey argument specifies the name of the unique Cloud Web Service alphanumeric access key that identifies each user. The selections include Amazon Access Key, Azure Account Name, Google e-mail styled account.
The @CloudAccessKeyEnc argument specifies the name of the encrypted unique Cloud Web Service alphanumeric access key that identifies each user.
The @CloudBucketName argument specifies the name of the container for cloud objects. Bucket names must be at least 3 and no more than 63 characters long. The selections are Amazon Bucket Name, Azure Container Name, Google Bucket Name. Google Bucket Name requirements are described at https://cloud.google.com/storage/docs/naming.
The @CloudGovRegion argument enables a special restricted region for the US Government use in Amazon S3 and Azure Clouds. This argument accepts one of the following values:
The @CloudRegionName argument specifies the name of the Cloud Web Service region to use for a bucket. Example values are but not limited to: us-east-1, us-east-2, us-west-1, us-west-2, ca-central-1, eu-central-1, eu-west-1, eu-west-2, ap-south-1, ap-southeast-1, ap-southeast-2, ap-northeast-1, ap-northeast-2, sa-east-1, N'Germany' and N'China'.
The @CloudSecretKey argument specifies the name of the Cloud Web Service secret key that is assigned when you initially get a Cloud account.
The @CloudSecretKeyEnc argument specifies the name of the encrypted Cloud Web Service secret key that is assigned when you initially get a Cloud account.
The @CloudVendor argument specifies the name of the cloud service provider. The argument accepts one of the following values: "AmazonS3", "AzureBlob" or "GoogleStorage".
Name of database to be backed up or restored.
This parameter specifies a database:
to be backed up (xp_backup_database and xp_slsFastCompression)
containing the transaction log to be backed up (xp_backup_log)
to be restored (xp_restore_database and xp_restore_log)
on which you wish to check the progress of an activity (xp_slsReadProgress)
for which you want to delete old backups (xp_slsSmartCleanup)
If supplied as a variable (@database), this name can be specified either as a string constant (@database = database name) or as a variable of character string data type, except for the ntext or text data types.
Specifies a location for data files.
Specifies whether copy only backups are included during automated restores. This argument accepts one of the following values:
Specifies whether replication is used during automated restores. This argument accepts one of the following values:
Drops the restored database only if the restore fails. Use this option if you no longer need the restored database. For example, if you are only restoring the latest backup for testing purposes. This option contains two additional options to select. One or both options can be selected.On success restore and check database integrity operations - The database is dropped after a successful restore and database integrity check.On failure any of restore or check databases integrity operations - The database is dropped after failing the restore or database integrity check. This argument accepts one of the following values:
Drops database on success only. Use this option if you no longer need the restored database. For example, if you are only restoring the latest backup for testing purposes. This option contains two additional options to select. One or both options can be selected.On success restore and check database integrity operations - The database is dropped after a successful restore and database integrity check.On failure any of restore or check databases integrity operations - The database is dropped after failing the restore or database integrity check. This argument accepts one of the following values:
Shows backups that are candidates for restore at this time, but does not restore them. This argument accepts one of the following values:
Value used to generate the encryption key for the encryption algorithm. If you do not supply encryption key, then the program will not encrypt the backup. If you use the wrong encryption key, the restore will fail.
Caution: When encrypting data, take care not to lose the encryption key; a backup cannot be restored or recovered without the original encryption key.
Example of key: 'Mypassword'
NOTE: Automated Restore requires that you use the same password for all encrypted backups.
Specifies a backup location (e.g. C:\backups\AdventureWorks.bak). This argument accepts network destinations. You can supply multiple instances of this argument to use stripe backups.
Specifies if LiteSpeed should wait and retry the read or write operation on failure. You can define retry options using the following parameters:
NOTE: This functionality is only available for disk and cloud operations.
For example, to specify a database backup where each failure can be retried once after a 30-second wait:
EXEC master.dbo.xp_backup_database
@filename='c:\test.bkp'
, @database='test'
, @ioflag='DISK_RETRY_COUNT=1'
, @ioflag='DISK_RETRY_WAIT=30'
Specifies an encrypted key. (Similar to @EncryptionKey).
You can use xp_encrypt_backup_key to convert the password (encryption_key) for use with @jobp. The original password (or encrypted key generated by xp_encrypt_restore_key) must be used to restore a backup.
NOTE: Automated Restore requires that you use the same password for all encrypted backups.
Specifies a location for log files.
Writes a log file for the operation. This argument accepts one of the following values:
0—Logging off.
1 or any odd value—Logging on. Log file is removed on success.
2 or any even value—Logging on.
The default output directory is C:\Documents and Settings\All Users\Application Data\Quest Software\LiteSpeed\SQL Server\Logs (or C:\ProgramData\Quest Software\LiteSpeed\SQL Server\Logs) (or C:\ProgramData\Quest Software\LiteSpeed\SQL Server\Logs). To log to a different directory add @Trace='logpath=path'.
See Configure Logging in LiteSpeed for information about LiteSpeed logging.
Specifies the largest unit of transfer in bytes to be used between SQL Server and LiteSpeed. The possible values are multiples of 65536 bytes (64 KB) ranging up to 4,194,304 bytes (4 MB). The default is 1048576 (1 MB).
The @ProxyHost argument is optional and specifies the name of the proxy host name that is running the proxy server.
|
note: If the @ProxyHost argument is not defined, then the LiteSpeed core engine checks the local .ini files for the proxy parameters. If the proxy parameters are not detected, then the LiteSpeed core engine connects directly to the proxy servers. |
The @ProxyLogin argument is optional and specifies the proxy server login credential.
|
note: If not defined, then the LiteSpeed core engine checks the local .ini files for the proxy parameters. If the proxy parameters are not detected, then the LiteSpeed core engine connects directly to the proxy servers. |
The @ProxyPassword argument is optional and specifies the proxy server password credential.
|
note: If the @ProxyPassword argument is not defined, then the LiteSpeed core engine checks the local .ini files for the proxy parameters. If the proxy parameters are not detected, then the LiteSpeed core engine connects directly to the proxy servers. |
The @ProxyPasswordEnc argument is optional and specifies the encrypted proxy server password credential.
|
note: If the @ProxyPasswordEnc argument is not defined, then the LiteSpeed core engine checks the local .ini files for the proxy parameters. If the proxy parameters are not detected, then the LiteSpeed core engine connects directly to the proxy servers. |
The @ProxyPort argument is optional and contains the port number of the proxy server. The TCP/IP port values can be 1-65535.
|
note: If the @ProxyPort argument is not defined, then the LiteSpeed core engine checks the local .ini files for the proxy parameters. If the proxy parameters are not detected, then the LiteSpeed core engine connects directly to the proxy servers. |
Specifies a partial backup, which includes all the read/write files in a database: the primary filegroup, any read/write secondary filegroups, and any specified read-only files or filegroups. If the database is read-only, @read_write_filegroups includes only the primary filegroup.
Works in conjunction with @restoreasreadonly, creates a folder if it does not exist, and then compresses it. This argument accepts one of the following values:
Instructs the restore operation to leave the database in read-only mode. This argument accepts one of the following values:
Using this option, you can restore a user database into an NTFS compressed folder or restore a tlog to a read-only database in a compressed folder.
NOTES:
Generates a single-row result set.
The result set contains the following details:
| Column Name | Data Type | Description |
|---|---|---|
| Database | nvarchar (128) | Database name. |
| Operation | nvarchar (30) | Operation type: Backup or Restore. |
| Threads | tinyint | The number of threads used for a LiteSpeed backup. |
| CompressionLevel | tinyint | Compression level used for compressing the backup. The compression level can be NULL, if backed up with Adaptive Compression. |
| AdaptiveCompression | nvarchar (max) |
Adaptive Compression option used for compressing the backup: 'speed' or 'size'. |
| MaxTransferSize | int | Specifies the largest unit of transfer in bytes to be used between SQL Server and LiteSpeed. The possible values are multiples of 65536 bytes (64 KB) ranging up to 4,194,304 bytes (4 MB). The default is 1048576 (1 MB) . |
| BaseSize | int | The smallest chunk of memory LiteSpeed attempts to write to disk at any given time. |
| BufferCount | smallint | The number of SQL Server buffers available for a LiteSpeed operation. |
| StripeCount | smallint | Number of backup files in the stripe set. |
| OverlappedBuffers | tinyint | The number of buffers that any single VDI thread can use at a time. |
| CPUSeconds | numeric (18, 3) | Processor time used by the LiteSpeed operation. |
| ElapsedSeconds |
numeric (18, 3) |
Duration of the operation. |
| NativeSize | bigint | Backup size (in bytes) without LiteSpeed compression. |
| BackupSize | bigint | Size of the backup (in bytes). |
Tip: In Toad, you can use Group Execute to produce a single result set for several server instances.
Backups of this database are the source for restore.
Backups created on this instance of SQL Server are the source for restore.
Specifies the maximum CPU usage allowed. The argument accepts an integer value between 1 and 100. The default value is 100. This is the percentage of the total amount of CPU usage (across all enabled processors) available.
TIP: Before you start tuning the CPU Throttle or Affinity parameters to adjust backup performance, try limiting the number of threads. If you decide to use an affinity value other than default, it is recommended that you limit the threading as well. You may also want to consider using Adaptive Compression to maintain backup performance. For more information, see Adaptive Compression.
The @UseSSL argument specifies that the connection uses SSL security. This argument accepts one of the following values:
Each @with argument should be a syntactically complete and correct statement. Please refer to the SQL Server Transact-SQL backup and restore documentation for the syntax and usage.
The supported formats are:
NOTES:
This extended stored procedure accepts the following @with parameters:
|
Parameter |
Description |
|---|---|
|
NORECOVERY |
Instructs the restore operation to not roll back any uncommitted transactions. Either the NORECOVERY or STANDBY option must be specified if another transaction log has to be applied. If NORECOVERY, RECOVERY, or STANDBY is not specified, RECOVERY is the default. SQL Server requires that the WITH NORECOVERY option is used on all but the final xp_restore_log statement when restoring a database backup and multiple transaction logs using LiteSpeed, or when multiple xp_restore_database or xp_restore_log statements are needed (for example, a full database backup followed by a differential database backup). NOTE: When specifying the NORECOVERY option, the database is not usable in this intermediate, non-recovered state. When used with a file or filegroup restore operation, NORECOVERY forces the database to remain in the restoring state after the restore operation. This is useful in either of these situations:
|
|
RECOVERY |
Instructs the restore operation to roll back any uncommitted transactions. After the recovery process, the database is ready for use. If subsequent LiteSpeed restore operations (xp_restore_log or xp_restore_database from differential) are planned, NORECOVERY or STANDBY should be specified instead. If NORECOVERY, RECOVERY, or STANDBY is not specified, RECOVERY is the default. When restoring backup sets from an earlier version of SQL Server, a database upgrade may be required. This upgrade is performed automatically when WITH RECOVERY is specified. |
|
STATS |
Displays a message each time a percentage of the activity completes. The default is 10%. |
| PASSWORD | Specifies the password for the backup set. |
Instructs LiteSpeed to create the specified database and its related files even if another database already exists with the same name. The existing database is deleted.This argument accepts one of the following values:
Allows setting a list of physical file paths to automated restore, when needed. Automated restore will apply defined file paths only in case of logical file name will equal to a logical file name from a backup. Default values will be applied for other file names.
Format:@FilesMap = N'Logical_file_name1 = file_path1; Logical_file_name2 = file_path2'
@FilesMap =
N'test1=C:\folder1\test1.mdf;
test2=D:\folder2\test2.mdf;
test3=E:\folder3\test3.mdf;
test_log1=C:\logfolder1\test_log1.ldf;
test_log2=D:\logfolder2\test_log2.ldf;
test_log3=E:\logfolder3\test_log3.ldf '
AlwaysOn Availability Groups parameter. Instructs LS Core to search and include database backups created on different replicas into the restore process.
NOTE: backups from different replicas have to be stored into the locations provided with @BackupPath argument.
EXEC master.dbo.xp_restore_automated
@database='NEWDB'
, @datafilepath = 'D:\DATA'
, @logfilepath = 'D:\DATA'
, @backuppath = N'D:\temp'
, @backupextension = 'bak,bkp'
, @checksubfolders = 1
, @sourceserver = N'LITESPEED\SQL2005'
, @sourcedatabase = N'FOX'
, @backuptype = N'full'
EXEC master.dbo.xp_restore_automated
@database='TESTDB'
, @datafilepath = 'D:\DATA'
, @logfilepath = 'D:\DATA'
, @backuppath = N'D:\temp'
, @backupextension = ''
, @checksubfolders = 1
, @sourceserver = N'LITESPEED\SQL2005'
, @sourcedatabase = N'FOX'
, @backuptype = N'full'
, @dropdatabaseonfailure = 1
, @dropdatabaseonsuccess = 1
, @withreplace = 1
exec master.dbo.xp_restore_automated
@database = N'LiteSpeedLocal_AutomatedRestore'
, @backuppath = N'D:\temp\FC\'
, @backupextension = ''
, @checksubfolders = 0
, @sourceserver = N'LITESPEED\SQL2005'
, @sourcedatabase = N'LiteSpeedLocal'
, @backuptype = N'diff'
, @jobp = N'5jzOEztgLxQ='
, @withreplace = 1
EXEC master.dbo.xp_restore_automated
@database='NEWDB'
, @datafilepath = 'D:\DATA'
, @logfilepath = 'D:\DATA'
, @backuppath = N'D:\temp'
, @backupextension = 'stripe1'
, @checksubfolders = 0
, @backuppath = N'E:\temp'
, @backupextension = 'stripe2'
, @checksubfolders = 0
, @sourceserver = N'LITESPEED\SQL2005'
, @sourcedatabase = N'FOX'
, @backuptype = N'full'
exec master.dbo.xp_restore_automated
@database = N'CM_1_Testing_1' ,
@backuppath = N'C:\backup',
@backupextension = N'',
@checksubfolders = 0,
@sourceserver = N'SRV8595',
@sourcedatabase = N'CM_1_Testing',
@backuptype = N'diff',
@affinity = 0,
@logging = 0,
@withreplace = 1,
@checkdb = 1,
@checkdbphysicalonly = 1,
@checkdbnoindex = 1,
@with = N'STATS = 10'
exec master..xp_restore_automated
@Database = N'test-ar'
, @BackupPath = N'D:\Backups'
, @BackupExtension = N''
, @CheckSubfolders = 1
, @SourceServer = N'your_server'
, @SourceDatabase = N'test'
, @BackupType = N'tlog'
, @Affinity = 0
, @Logging = 0
, @With = N'STATS = 10'
, @DontUseCopyOnly = 0
, @IncludeAGReplicas = 1
EXEC master.dbo.xp_restore_automated
@backuppath = N'D:\temp'
, @backupextension = ''
, @checksubfolders = 1
, @encryptionkey = N'******'
, @sourceserver = N'LITESPEED\SQL2005'
, @sourcedatabase = N'FOX'
, @backuptype = N'tlog'
, @dryrun = 1
exec master.dbo.xp_restore_automated @database = N'model' ,
@backuppath = N'test',
@backupextension = N'',
@checksubfolders = 0,
@sourceserver = N 'servername',
@sourcedatabase = N'model',
@backuptype = N'tlog',
@CloudVendor = N'AmazonS3',
@CloudBucketName = N'california',
@CloudAccessKey = N'********',
@CloudSecretKey = N'*********',
@UseSSL = 1,
@affinity = 0,
@logging = 0,
@DontUseReplication = 1,
@checkdb = 1,
@checkdbphysicalonly = 1,
@checkdbnoindex = 1,
@checkdbnoinfomessages = 1,
@progressname = N'f94ee3d8-f6ac-47e0-80cd-a6326a532dd9',
@with = N'STATS = 10'
exec master.dbo.xp_restore_automated @database = N'newtest' ,
@backuppath = N'test',
@backupextension = N'bak',
@checksubfolders = 1,
@sourceserver = N'Server\SQL_instance',
@sourcedatabase = N'test',
@backuptype = N'diff',
@CloudVendor = N'AzureBlob',
@CloudBucketName = N'test',
@CloudAccessKeyEnc = N'******',
@CloudSecretKeyEnc = N'******',
@UseSSL = 1,
@affinity = 0,
@logging = 0,
@DontUseReplication = 1,
@withreplace = 1,
@checkdb = 1,
@checkdbphysicalonly = 1,
@checkdbnoindex = 1,
@checkdbnoinfomessages = 1,
@with = N'STATS = 10'
0 (success) or non-zero (failure). Return codes represent the native error number returned from SQL Server for any errors encountered during the operation.
To capture the output message, run the following:
declare @rmsg varchar(999)
exec master..<procedure_name> <arguments>, @resultmsg=@rmsg output
select @rmsg
To capture the output message and the result code, run the following:
declare @rc int
declare @rmsg varchar(999)
exec master..<procedure_name> <arguments>, @resultmsg=@rmsg output, @resultcode=@rc output
select @rc, @rmsg
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