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Last Update by (administrator): ADMIN
Last Update by (administrator): ADMIN
6.2.5 Defining a device class for a library
A device class is the link between a storage pool and a particular device where
you wish to store data.
In order to create a storage pool to use our library and tape drives, we must
define a device class for the library (and its drives). A library can be defined in
many device classes, and a device class can be used by many storage pools.
To define a device class, use the define devclass command. This command has
many different options depending on the type of devices you are using. You
should read the online help (help define devclass) before defining your device
classes.
Some of the important options are:
FORMAT defines the format in which the device reads and writes.
MOUNTRetention specifies the amount of time a tape will remain mounted in
a drive after it becomes idle. The default of 60 minutes is generally too long
for most environments. If your environment requires frequent tape mounts,
set a low value (5 or 10 minutes).
MOUNTWait specifies the length of time the server will wait for a tape to
become available in the library (that is, either mounted in a drive for a manual
library, or checked in to an automated library).
228
IBM Tivoli Storage Manager Implementation Guide
On-Line: Yes
Last Update Date/Time: 02/22/2006 13:59:08
Source Name: ATLANTIC
Source Type: SERVER
Destination Name: DR01
Destination Type: DRIVE
Library: 3582LIB
Node Name:
Device: /dev/rmt1
External Manager:
LUN:
Initiator: 0
Directory:
On-Line: Yes
Last Update Date/Time: 02/22/2006 13:59:21
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