Air Cleaner User Manual

The first part of the selection is the platform type. The second
part (/MP) indicates the kernel type. If the kernel type portion
is omitted, a uniprocessor (single processor) kernel is assumed.
Network install support to include
Default=(Blank/None). If, after starting a system from this
backup tape, you want the ability to perform a network
installation (rather than installing from this backup), press F4 to
display a list of supported network types and select one from
the list. You must select the network type of the adapter that
you want to use to install the system from the network.
Include non-JFS logical volumes?
Default=yes. To exclude all non-journaled file systems (raw
logical volumes) from the backup, press Tab to change the
value to “no”. If you select “no” to this option, all raw logical
volume data is excluded from the backup, but the logical
volumes can be recreated using the LVM information on the
backup. If you select “yes”, all raw logical volumes are
included on the backup unless you specifically excluded them
in the exclude list.
Rewind tape before starting backup?
Default=yes. Press Enter to rewind the tape before the backup
begins. If you are placing multiple backup images onto a single
tape, then select “no” to place this backup on the tape at the
current location. This option is displayed only when you back
up to a tape device. For a system backup, tape boot information
is placed on the tape at the beginning of the first backup. This
information is not placed on the tape for subsequent backups.
Note: If this is the first backup to this tape, or if you have
restarted the system, reinserted the tape, or changed the
tape drive block size, you should select to rewind the
tape. Only if you completed another backup and have
not performed any of these functions will the tape be
positioned correctly at the end of the previous backup
image.
Forward to End of Tape Before Starting Backup
This option lets you fast forward to the end of the last SysBack
backup on the tape for all backup types. Use this option when
stacking multiple backups on the same tape that has been
rewound or ejected. This options should also be used when the
system has been restarted or the block size of the tape driver
has been changed from the last backup. This eliminates having
to manually position the tape before stacking a backup image.
Compress data before writing to media?
Default=“no” for tapes and “yes” for disk image backups. Press
Tab to change the option. “yes” indicates that the data will be
compressed before it is written to the backup media.
Compressing the data usually increases backup performance
and uses between 25 and 40% less space on the media. For best
performance, do not select this option if the backup device
provides its own hardware data compression. Compressing
data with the software uses considerably more CPU cycles to
process the data.
Chapter 4. Performing Backups 4-7