OpenStorage Technology (OST) configuration and management
The OpenStorage Technology (OST) technology uses a plug-in architecture, similar to a software driver, that lets the third-party vendors direct the NetBackup data streams and metadata into their devices. The plug-in is developed and created by the OST partner and it resides on the media server for use by NetBackup. NetBackup depends on the OST plug-in for a path to the storage server.
Communication to the storage server is through the network; name resolution on the media server and the storage server must be configured correctly. All supported vendor plug-ins can communicate over a TCP/IP network and some can also communicate to the disk storage on a SAN network.
To determine the capabilities of a disk appliance, NetBackup uses the plug-in to query the storage appliance. The capabilities can include deduplicated storage, optimized off-host duplication, and synthetic backups.
Each OST vendor can report different log messages. A review of the bptm log and/or plug-in log for a backup or a restore job is the best way to understand the specific calls made to the storage server through the plug-in.
The basic steps include the following:
Claim the resource
sts open_server
Create the image
write
close
sts close_server
The example of calls in a vendor plug-in log are as follows:
2016-03-14 09:50:57 5484: --> stspi_claim 2016-03-14 09:50:57 5484: --> stspi_open_server 2016-03-14 09:50:57 5484: <-- stspi_write_image SUCCESS 2016-03-14 09:50:57 5484: --> stspi_close_image 2016-03-14 09:50:59 5484: <-- stspi_close_server SUCCESS
To display the plug-in version, use the following commands:
UNIX/Linux: /usr/openv/netbackup/bin/admincmd/bpstsinfo -pi
Windows: install dir\netbackup\bin\admincmd\bpstsinfo -pi
To test the basic communication to the storage server, use the following commands:
UNIX/Linux: /usr/openv/netbackup/bin/admincmd/bpstsinfo -li -storage_server storage server name -stype OST_TYPE
Windows: install dir\netbackup\bin\admincmd\bpstsinfo -li -storage_server storage server name -stype OST_TYPE
To display the configured storage servers, use the following commands:
UNIX/Linux: /usr/openv/netbackup/bin/admincmd/nbdevquery -liststs -stype OST_TYPE -U
Windows: install dir\netbackup\bin\admincmd\nbdevquery -liststs -stype OST_TYPE -U
To show the configured disk pools, use the following commands:
UNIX/Linux: /usr/openv/netbackup/bin/admincmd/nbdevquery -listdp -stype OST_TYPE -U
Windows: install dir\netbackup\bin\admincmd\nbdevquery -listdp -stype OST_TYPE -U
To show the configured disk volumes, use the following commands:
UNIX/Linux: /usr/openv/netbackup/bin/admincmd/nbdevquery -listdv -stype OST_TYPE -U
Windows: install dir\netbackup\bin\admincmd\nbdevquery -listdv -stype OST_TYPE -U
Review the flags in the diskpool information, for example:
CopyExtents - supports optimized duplications
OptimizedImage - supports optimized synthetics and accelerator
ReplicationSource - supports AIR (replication)
ReplicationTarget - supports AIR (imports)
After the initial configuration of the diskpools, you must run the nbdevconfig -updatedp command as follows to recognize any new flag that the vendor added:
UNIX/Linux: /usr/openv/netbackup/bin/admincmd/nbdevconfig -updatedp -stype OST_TYPE -dp diskpool -M master
Windows: install dir\netbackup\bin\admincmd\nbdevconfig -updatedp -stype OST_TYPE -dp diskpool -M master
To manually add the supported flags, you can use the following commands:
nbdevconfig -changests -storage_server storage server name -stype OST_TYPE -setattribute OptimizedImage
nbdevconfig -changedp -stype OST_TYPE -dp diskpool name -setattribute OptimizedImage
You should also review the following flag for the storage server:
OptimizedImage - supports accelerator
To list the OpenStorage credentials for all of the media servers, use the following commands:
UNIX/Linux: /usr/openv/volmgr/bin/tpconfig -dsh -all_hosts
Windows: install dir\volmgr\bin\tpconfig -dsh -all_hosts