Air Cleaner User Manual

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 active 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 active only when you back up to a disk image
file.
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.
Preserve physical partition mapping?
Default=no. Selecting “yes” to this option ensures that all
logical volumes will be recreated from this backup using the
same physical partitions that are currently allocated to them.
Unless the logical volumes were originally created using
physical partition maps, it is generally recommended that they
not be recreated using the same partitions, because this
preserves fragmentation that develops over time as logical
volumes and file systems expand.
When you recreate a volume group or logical volume or
perform a system installation, you can choose whether or not to
use the prior partition map. If the original physical volumes do
not exist or are not large enough to contain the same partitions,
the logical volumes will be recreated without using the maps.
Device name for remote volume prompt
Default=(Blank/None). Enter a TTY, LFT or PTS device name to
send the volume prompt to a specified device rather than to the
current SMIT screen. If you are backing up to a remote host,
the device name you specify is attached to the remote host.
This field is displayed only when the backup device is a tape
drive or virtual device.
Examples of device names are /dev/tty0, /dev/lft0 and /dev/pts/5.
You can determine the terminal device name by typing tty at
the command line on that device.
Overwrite existing backup with same ID?
Default=no. If the Backup File ID field contains a value already
4-8 IBM Tivoli Storage Manager for System Backup and Recovery: Installation and User’s Guide