HP SureStore HD Server 4000 User's Guide - 5967-9979

9
-
6 Backing Up and Restoring Files
Compatibility Mode
If you will need to restore this server’s tapes to servers other than
an HP SureStore HD Server 4000, and the utilities can restore the
“ustar” or “pax” format, then select
Compatibility Mode
.
Tapes made either in compatibility mode or in the default with the
mode disabled, can be restored in an HP SureStore HD Server 4000.
Tapes written with the mode disabled preserve ownership and
Windows FAT attributes. Tapes written in compatibility mode
preserve ownership but not Windows FAT attributes.
Note: ❏
The archive bit is not changed for files backed up on a tape
attached to this server.
Enable Compression
For
Compression
, normally use the default compression, which is
assumed to be in effect for the nominal capacity of tape drives (such
as 40 GB for HP DAT40). Disable compression
only if
you will need
to restore this server’s tapes on a different drive that is
not
compatible
with the hardware compression used on the HP DAT
and DLT tape drives.
Reset Log
Resetting the log using
Reset Log
keeps the backup/restore log
from getting too large, by reinitializing it when the new backup is
performed.
Backup Now
To make an immediate one-time backup, use the
Backup/Restore
Æ Backup
page. Specify the files to back up (described above on
page 9-4), and specify any option changes (described above on
page 9-5).
Insert a properly labeled, write-enabled tape in the selected tape
drive.
Click the
[Start Backup]
button. This uses the selections made on
this page.
Note ❏
The tape will rewind before and after recording. It will be
unloaded if
Unload/Eject Tape on Completion
is specified on
the
Backup Options
page. Unloading prevents the next backup
from recording over this one. (Note that on HP DLT drives, the
tape
will not be ejected
when unloaded, merely made
inaccessible for further recording until manually reloaded.)