Air Cleaner User Manual

backup. If you select “yes”, all raw logical volumes are
included on the backup unless you specifically excluded them
in the exclude list.
User description
Default=(Blank/None). Enter up to 60 characters of descriptive
information to add to the volume label on the backup. Do not
use single (’) or double (″) quotation marks in the description.
Host read permission
Default=all hosts. By default, all hosts with access to the system
on which this file is written have permission to read, or restore
from, this image. Press Tab to limit read permission to the
original host or the server on which the file is written. This
option is displayed only when you back up to a disk image file.
User read permission
Default=all users. By default, any user on a host with access to
the system and directory on which this file is written has
permission to read, or restore from, this image. Press Tab to
limit the read permission to only the original user, the root user
on the original host, or the server to which the file is written.
This option is displayed only when you back up to a disk
image file.
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
Forwards to the end of the last SysBack backup on the tape for
all backup types. Use this option when stacking multiple
backups on a tape that has been rewound or ejected. Also use
this option options when the system has been restarted or
when the block size of the tape drive has been changed from
the last backup.
Buffer size (In Kbytes)
Default=64. Changing this value either increases or decreases
the amount of data that is written to the output device in a
single I/O operation. Some devices with small buffers might
require you to reduce this value, while other devices with very
large buffers can benefit from increased performance by
increasing this value. If you are unsure, use the default value.
This value must be a multiple of the tape block size.
4-14 IBM Tivoli Storage Manager for System Backup and Recovery: Installation and User’s Guide