Restore dbs

  • The below code works for backup files only from local drives.

    When replaced with a network path the code just runs through but does not restore any dbs.

    SET @backup_path='\\ABCD\E$\BackupsTest\' ; - Does not work. Where is it going wrong ?

     

    DECLARE @backup_path nvarchar(300);

    DECLARE @restore_path nvarchar(300);

    DECLARE @cmd nvarchar(1000);

    DECLARE @file_list TABLE (backup_file nvarchar(400));

    DECLARE @backup_file nvarchar(300);

    DECLARE @Table TABLE (LogicalName nvarchar(128),[PhysicalName] nvarchar(128), [Type] varchar, [FileGroupName] nvarchar(128), [Size] nvarchar(128),

    [MaxSize] nvarchar(128), [FileId]nvarchar(128), [CreateLSN]nvarchar(128), [DropLSN]nvarchar(128), [UniqueId]nvarchar(128), [ReadOnlyLSN]nvarchar(128), [ReadWriteLSN]nvarchar(128),

    [BackupSizeInBytes]nvarchar(128), [SourceBlockSize]nvarchar(128), [FileGroupId]nvarchar(128), [LogGroupGUID]nvarchar(128), [DifferentialBaseLSN]nvarchar(128), [DifferentialBaseGUID]nvarchar(128), [IsReadOnly]nvarchar(128), [IsPresent]nvarchar(128), [TDEThumbprint]nvarchar(128),

    snapshoturl nvarchar(128)

    );

    DECLARE @LogicalNameData nvarchar(128);

    DECLARE @LogicalNameLog nvarchar(128);

    DECLARE @user_mode nvarchar(200);

    SET @backup_path='E:\BackupsTest\'; <--- Works

    --SET @backup_path='\\ABCD\E$\BackupsTest\' ; <-- Does not work

    SET @restore_path='E:\Restore\'

    SET @cmd ='DIR /b ' + @backup_path;

    INSERT INTO @file_list(backup_file)

    EXEC MASTER.SYS.xp_cmdshell @cmd;

    SELECT @backup_file = MIN(backup_file)

    FROM @file_list

    WHERE backup_file LIKE '%.bak';

    WHILE @backup_file IS NOT NULL

    BEGIN

    DELETE FROM @Table;

    INSERT INTO @Table

    EXEC('

    RESTORE FILELISTONLY

    FROM DISK=''' + @backup_path + @backup_file + '''')

    SET @LogicalNameData=(SELECT LogicalName FROM @Table WHERE Type='D')

    SET @LogicalNameLog=(SELECT LogicalName FROM @Table WHERE Type='L')

    --SET @user_mode='ALTER DATABASE ' + @LogicalNameData + ' SET SINGLE_USER WITH ROLLBACK IMMEDIATE';

    --EXEC(@user_mode);

    SET @cmd='RESTORE DATABASE '

    + @LogicalNameData

    +' FROM DISK='''

    + @backup_path + @backup_file

    + ''' WITH REPLACE'

    +', MOVE ''' + @LogicalNameData + ''' TO ''' + @restore_path + @LogicalNameData + '.mdf'''

    +', MOVE ''' + @LogicalNameLog + ''' TO ''' + @restore_path + @LogicalNameLog + '.ldf'''

    ;

    EXEC (@cmd);

    PRINT @cmd;

    SET @backup_file=(SELECT MIN(backup_file)

    FROM @file_list

    WHERE backup_file>@backup_file);

    --SET @user_mode='ALTER DATABASE ' + @LogicalNameData + ' SET MULTI_USER';

    --EXEC(@user_mode);

    END

  • mtz676 wrote:

    When replaced with a network path the code just runs through but does not restore any dbs.

    Does your SQL Server service account have read permissions on the share?

     

  • Yes, it does

  • What is the result of the following:

    SELECT servicename, service_account
    FROM sys.dm_server_services;
  • If I remember well, a regular sqlserver instance needs a startup parameter to be able to handle databases which are hosted on a remote share.

    Why on earth do you want to use remote files ? ( io latency / Quiesce / network connectivity / ... )

    ChatGPT confirmed my old memories ๐Ÿ˜‰

    "In SQL Server 2014 and earlier, trace flag 1807 was required to enable the database engine to create databases on network shares. However, starting from SQL Server 2016, this behavior is enabled by default, and the trace flag is no longer necessary."

    Totally irrelevant answer ... you are just storing the .BAK files on a share. That is no problem at all, after you 've granted read auth to the traget instances sql server service account on the given share.

    Johan

    Learn to play, play to learn !

    Dont drive faster than your guardian angel can fly ...
    but keeping both feet on the ground wont get you anywhere :w00t:

    - How to post Performance Problems
    - How to post data/code to get the best help[/url]

    - How to prevent a sore throat after hours of presenting ppt

    press F1 for solution, press shift+F1 for urgent solution ๐Ÿ˜€

    Need a bit of Powershell? How about this

    Who am I ? Sometimes this is me but most of the time this is me

  • mtz676 wrote:

    The below code works for backup files only from local drives.

    When replaced with a network path the code just runs through but does not restore any dbs.

    SET @backup_path='\\ABCD\E$\BackupsTest\' ; - Does not work. Where is it going wrong ?

    DECLARE @backup_path nvarchar(300); DECLARE @restore_path nvarchar(300); DECLARE @cmd nvarchar(1000); DECLARE @file_list TABLE (backup_file nvarchar(400)); DECLARE @backup_file nvarchar(300); DECLARE @Table TABLE (LogicalName nvarchar(128),[PhysicalName] nvarchar(128), [Type] varchar, [FileGroupName] nvarchar(128), [Size] nvarchar(128), [MaxSize] nvarchar(128), [FileId]nvarchar(128), [CreateLSN]nvarchar(128), [DropLSN]nvarchar(128), [UniqueId]nvarchar(128), [ReadOnlyLSN]nvarchar(128), [ReadWriteLSN]nvarchar(128), [BackupSizeInBytes]nvarchar(128), [SourceBlockSize]nvarchar(128), [FileGroupId]nvarchar(128), [LogGroupGUID]nvarchar(128), [DifferentialBaseLSN]nvarchar(128), [DifferentialBaseGUID]nvarchar(128), [IsReadOnly]nvarchar(128), [IsPresent]nvarchar(128), [TDEThumbprint]nvarchar(128), snapshoturl nvarchar(128) ); DECLARE @LogicalNameData nvarchar(128); DECLARE @LogicalNameLog nvarchar(128); DECLARE @user_mode nvarchar(200);

    SET @backup_path='E:\BackupsTest\'; <--- Works

    --SET @backup_path='\\ABCD\E$\BackupsTest\' ; <-- Does not work SET @restore_path='E:\Restore\'

    SET @cmd ='DIR /b ' + @backup_path; INSERT INTO @file_list(backup_file) EXEC MASTER.SYS.xp_cmdshell @cmd;

    SELECT @backup_file = MIN(backup_file) FROM @file_list WHERE backup_file LIKE '%.bak';

    WHILE @backup_file IS NOT NULL BEGIN DELETE FROM @Table; INSERT INTO @Table EXEC(' RESTORE FILELISTONLY FROM DISK=''' + @backup_path + @backup_file + '''')

    SET @LogicalNameData=(SELECT LogicalName FROM @Table WHERE Type='D') SET @LogicalNameLog=(SELECT LogicalName FROM @Table WHERE Type='L')

    --SET @user_mode='ALTER DATABASE ' + @LogicalNameData + ' SET SINGLE_USER WITH ROLLBACK IMMEDIATE'; --EXEC(@user_mode); SET @cmd='RESTORE DATABASE ' + @LogicalNameData +' FROM DISK=''' + @backup_path + @backup_file + ''' WITH REPLACE' +', MOVE ''' + @LogicalNameData + ''' TO ''' + @restore_path + @LogicalNameData + '.mdf''' +', MOVE ''' + @LogicalNameLog + ''' TO ''' + @restore_path + @LogicalNameLog + '.ldf''' ; EXEC (@cmd);

    PRINT @cmd;

    SET @backup_file=(SELECT MIN(backup_file) FROM @file_list WHERE backup_file>@backup_file); --SET @user_mode='ALTER DATABASE ' + @LogicalNameData + ' SET MULTI_USER'; --EXEC(@user_mode);

    END

    how are you running this, via sql agent?

    donโ€™t just check the share permissions on

     

    \\ABCD\E$\

     

    drill down into

     

    \\ABCD\E$\BackupsTest\

     

    and check the ntfs file permissions too.

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" ๐Ÿ˜‰

  • We have several sql backup files on a network share and are trying to restore them onto a sqlserver

    • This reply was modified 3 weeks, 2 days ago by  mtz676.
  • What is the actual error code you get when executing the sql statement ?

    The service account of the target instance needs read auth on the backup share ( and location ).

     

    Johan

    Learn to play, play to learn !

    Dont drive faster than your guardian angel can fly ...
    but keeping both feet on the ground wont get you anywhere :w00t:

    - How to post Performance Problems
    - How to post data/code to get the best help[/url]

    - How to prevent a sore throat after hours of presenting ppt

    press F1 for solution, press shift+F1 for urgent solution ๐Ÿ˜€

    Need a bit of Powershell? How about this

    Who am I ? Sometimes this is me but most of the time this is me

  • On destination server XYZ SQLAgent runs under LocalSystem account.

    XYZ$ has been given read/write access to the network share - \\ABCD\E$\BackupsTest\

     

    • This reply was modified 3 weeks ago by  mtz676.
  • Ok so check the logs you should be seeing error in the restore likely with an OS error number

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" ๐Ÿ˜‰

  • It's not the sqlagent service account, but the sqlserver service account that needs the auth to get to the file share !!

    Johan

    Learn to play, play to learn !

    Dont drive faster than your guardian angel can fly ...
    but keeping both feet on the ground wont get you anywhere :w00t:

    - How to post Performance Problems
    - How to post data/code to get the best help[/url]

    - How to prevent a sore throat after hours of presenting ppt

    press F1 for solution, press shift+F1 for urgent solution ๐Ÿ˜€

    Need a bit of Powershell? How about this

    Who am I ? Sometimes this is me but most of the time this is me

  • error number would be helpful

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" ๐Ÿ˜‰

  • sqlserver service accountย  is running under LocalSystem Account on the destination server

  • mtz676 wrote:

    sqlserver service accountย  is running under LocalSystem Account on the destination server

    I guessed so if agent is running under that too, so have you checked the ACLs at the share level and folder NTFS ACLS on the Security tab.

    Also drill down into the subfolder and see whats set in case inheritance has been switched off

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" ๐Ÿ˜‰

  • If you cannot switch the sql server service to use a domain account, you'll have to grant the file share to the computer account.

    Johan

    Learn to play, play to learn !

    Dont drive faster than your guardian angel can fly ...
    but keeping both feet on the ground wont get you anywhere :w00t:

    - How to post Performance Problems
    - How to post data/code to get the best help[/url]

    - How to prevent a sore throat after hours of presenting ppt

    press F1 for solution, press shift+F1 for urgent solution ๐Ÿ˜€

    Need a bit of Powershell? How about this

    Who am I ? Sometimes this is me but most of the time this is me

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