Air Cleaner User Manual

cfgvirdev
Purpose
Adds, lists, or removes virtual device descriptions.
Syntax
 cfgvirdev -l
-r device
-a -s
-p -A
-c -d ″description″

Description
The cfgvirdev command is used to add, list, or remove a virtual device description
from the system. A virtual device can have a write policy of either sequential,
parallel or multi-copy. Refer to Chapter 21, “Virtual Devices”, on page 21-1 for a
detailed description of each write policy.
You can also indicate that a sequential autoloader is attached to the virtual device.
This indicates that when a tape reaches the end of media, it is ejected from the
drive, and the reading or writing continues automatically as soon as the next
volume is inserted. In this case, the user receives no prompt to change the volume.
If you are creating an autoloader virtual device, you can assign one or more
physical devices. Otherwise, you must assign multiple physical devices. A device is
a tape drive such as “/dev/rmt0”.
You can assign your own description to the virtual device, or you can allow the
system to provide a default description. By default, the description assigned will
be either “Sequential Virtual Device”, “Parallel Virtual Device” or “Multi-copy
Virtual Device”, depending on the write policy you choose.
When adding a new virtual device, the device option can be a single tape drive
(such as “/dev/rmt0”) or a list of tape drives (such as “/dev/rmt0
/dev/rmt1/dev/rmt2”). When removing a virtual device, the device option is the
virtual device name to remove. Omit the device option when only listing defined
virtual devices.
When adding a new virtual device, the system automatically assigns the next
available virtual device name. The prefix will be vdev, followed by a device
number, starting with 0 and increasing for each subsequent device added.
Flags
-a Adds a new virtual device.
-r Removes an existing virtual device.
-l Lists defined virtual devices.
-s When adding a virtual device, indicates a Sequential write-policy.
-p
When adding a virtual device, indicates a Parallel write-policy.
A-18 IBM Tivoli Storage Manager for System Backup and Recovery: Installation and User’s Guide