Administrator's Guide

Chapter 10. Managing Storage Pool Volumes

Volumes in storage pools contain backed-up, archived, or space-managed data from clients. Storage pools are either random access or sequential access, depending on the device type of the device class to which the pool is assigned.

Random access storage pools are always associated with the DISK device class, and all volumes are one of the following:

• Fixed-size files that must be created by using the DSMFMT utility before the ADSM server can access them

• Raw logical volumes that must be defined, typically by using SMIT, before the server can access them

  Attention: It is recommended that you use journal file system (JFS) files rather than raw logical volumes for storage pool volumes. See "The Advantages of Using Journal File System Files" for details.

See "Preparing Volumes for Random Access Storage Pools" for details.

Each volume defined in a sequential access storage pool must be of the same type as the device type of the associated device class. The device types are:

3570

A volume is a 3570 tape cartridge.

3590

A volume is a 3590 tape cartridge.

4MM

A volume is a 4mm tape cartridge.

8MM

A volume is an 8mm tape cartridge.

CARTRIDGE

A volume is a 3480 or 3490 cartridge system tape.

DLT

A volume is a digital linear tape.

DTF

A volume is a digital tape format (DTF) tape.

ECARTRIDGE

A volume is a cartridge tape used by a tape drive such as the StorageTek SD-3 or 9490 tape drive.

FILE

A volume is a file in the file system of the server machine.

GENERICTAPE

A volume is a tape that is compatible with the drives defined to the device class.

OPTICAL

A volume is a two-sided 5.25-inch rewritable optical cartridge.

QIC

A volume is a 1/4-inch tape cartridge.

SERVER

A volume is one or more objects archived in the server storage of another ADSM server.

WORM

A volume is a two-sided 5.25-inch write-once optical cartridge.

WORM12

A volume is a two-sided 12-inch write-once optical cartridge.

WORM14

A volume is a two-sided 14-inch write-once optical cartridge.

See "Preparing Volumes for Sequential Access Storage Pools".

See the following sections:

Concepts:

"Access Modes for Storage Pool Volumes"

Tasks:

"Preparing Volumes for Random Access Storage Pools"

"Preparing Volumes for Sequential Access Storage Pools"

"Defining Storage Pool Volumes"

"Updating Storage Pool Volumes"

"Monitoring the Use of Storage Pool Volumes"

"Moving Files from One Volume to Another Volume"

"Deleting Storage Pool Volumes"

In this chapter, most examples illustrate how to perform tasks by using the ADSM command line interface. For information about the ADSM commands, see ADSM Administrator's Reference, or issue the HELP command from the command line of an ADSM administrative client.

All of the ADSM commands can be performed from the administrative client web interface. A Version 3 administrative client GUI is also available for the Windows NT and Windows 95 operating systems. For more information about using the administrative interfaces, see ADSM Quick Start. You can find detailed help for using the graphical user interfaces in the online help facilities.