TMF Planning and Configuration Guide (H06.05+)

Configuring TMF for Backup and Recovery
HP NonStop TMF Planning and Configuration Guide—540136-002
5-7
Dumping to a Remote System
Specifying the Prefix for Dump Subvolume Names on Disk
If you direct dumps to disk on the local system, the TMF dump processes automatically
generate dump subvolume names consisting of a two-character alphabetic prefix (the
default is ZT) followed by a six-digit serial number. Dumping to disk on a remote
system requires that you explicitly designate a different prefix. When designating the
disk volume to receive dumps, you can specify the prefix of your choice by appending
it to the disk volume name, as follows:
$BACKUP.AA
One reason you might want to supply your own prefixes is to segregate different
applications’ dumps from one another.
Relocating Disk Dumps
The TMFCOM RELOCATE DISKDUMPS command is useful for relocating disk dumps
from one volume to another on the same system or on a remote system. When it is
necessary to relocate disk dumps from one volume to another, copy the dumps to the
required volume and then issue a TMFCOM RELOCATE DISKDUMPS command to
modify the TMF catalog, reflecting the relocation of the dumps.
The TMFCOM RELOCATE DISKDUMPS command is particularly useful for Nomadic
Disk configurations when you need to modify the disk dump locations in the TMF
catalog after a takeover by the backup system. This change is needed when the
backup system name is different from the primary system name.
Dumping to a Remote System
Dumping files to a remote system is not considered a distributed TMF operation. A
remote system does not have to be running TMF to receive audit dumps or online
dumps, but it must be configured for labeled-tape processing (if you are dumping to
tape) and be running a C10 or later version of the NonStop Kernel operating system.
The most common reasons for dumping to a remote system are:
•
The local system does not have tape or disk resources available for the dumps.
•
You want to store dumps offsite to protect the data from loss of the local system.
•
You want to centralize the dumps on one system so the physical tape library can
be maintained in one place.
•
The local system’s archive media is temporarily out of service.
If you are going to dump to tape on a remote system, the tapes must be registered in
the TMF catalog on the local system. To do that, you qualify the tape drive name with
the remote system name in the DRIVE option of the ADD TAPEMEDIA command.