Storix Software SBAdmin Commands Reference - Manual (Page 21)

Storix System Backup Administrator - 21 - Version 8.2 Commands Reference
Important Note: Since this command is run on a backup server, not the administrator, no
backup label or history information is created for the output backup. If this information is
required, you must use the Utility option to Rebuild a Backup Label from the output media, or
use the
struncopy command on the administrator instead.
If writing the backup to a different server, the local system must have been configured as a
valid client for the destination server.
This command will only copy one backup at a time to the output device or directory. Even if the
source device or backup label contained multiple backups, only one may be copied at one
time. You may, however, append multiple backups to the output device (or backup label if
writing to disk). To indicate which source backup to copy (from a backup label containing
multiple clients or backup jobs), use the –n seqnum option. To copy all backups from source to
destination, run this command multiple times, in creating the seqnum option by one each time.
Stacking backups to tape
When copying to a tape device, you may indicate if you want to rewind before starting the
backup and if the tape should be rewound and ejected at the end of the backup. If you do not
rewind at the start of the backup, you may append the source backup to the end of the
destination media (if the destination media is currently at the beginning of volume. The
destination
backup label will be appended with the selected source backup.
Buffer Size
You may alter the buffer size of the backup by entering a buffer size (in Kbytes) using the –b
bufsize option. This is quite useful in increasing the performance of backups when writing to
different media. For example, the default 64K buffer size may be adequate when you wrote
your original disk backup file, but when copying to a high-speed tape drive, a higher buffer size
(i.e. 256K) may provide much greater backup performance. To use the same buffer size for the
destination as was used for the source, do not specify a new buffer size.
Host Read Permission
If using Network or TSM Edition, and the destination backup is written to a directory device or
TSM server, you may also change whether only the original client host or any host may read
the backup data by using the –h hostperm option. If copying from tape to directory/TSM, the
default is to allow all hosts (-h a) to read the backup. If copying from directory/TSM to
directory/TSM, the default is to leave the original setting unchanged. To allow only the original
host which wrote the backup to read it, use –h h.