HP Serveur lame HP ProLiant BL465c Gen8 - Manual (Page 57)

Figure 24 Metafile allocation (in the cluster configuration)
Using a dynamic disk configuration
• Do not allocate a data file made up of multiple instances to a file system (drive) of a disk group
subject to backup and restoration.
• Allocate the following directories and files to a file system (drive) of a disk group different from
the one to which data files (
*.mdf and *.ndf ) are allocated. If these directories and files are
allocated to a file system (drive) of the same disk group, an error will occur when backup is ex-
ecuted.
• Metafile storage directory (only if a VDI metafile storage directory was specified with the
drmsqlinit command)
• Backup data of the transaction log
• To allocate a file that is made up of multiple databases to a file system (drive) of the same disk
group, you must collectively back up and restore all the databases. If these requirements are not
met when performing Application Agent backup, backup processing terminates with an error.
• To back up or restore databases individually, allocate database data files to a file system (drive)
of a different disk group.
• Store tempdb in a file system (drive) of a disk group different from the one to which a user database
subject to backup belongs.
When the user database is restored if
tempdb is stored in a file system (drive) of the same disk
group, tempdb is overwritten by the data restored from the secondary volume in the online state.
Then, the SQL Server goes into an abnormal state. In this case, restart the SQL Server to recreate
tempdb and restore the server to a normal state. After restarting the SQL Server, specify a file
system (drive) different from the one to which a user database subject to backup belongs as a
destination in which
tempdb is stored, and then re-execute restoration. Before re-executing restor-
ation, see “ SQL Server database requirements for executing commands ” on page 286 to check if
the database can properly be restored.
Application Agent CLI User Guide 57