A default selection method for a device in a storage device pool may not work as expected when file level backups are performed.

Problem

A default selection method for a device in a storage device pool may not work as expected when file level backups are performed..

This issue may be observed when all of the following conditions are met:

• One or more storage device pools are created in addition to the system-defined storage device pool
• One or more storage devices belong to multiple storage device pools which are configured with a different selection method
• All the above storage device pools are used for backup jobs

Example scenario for this issue:

Name: Any disk storage (System-defined storage device pool)
Member Device:
 Disk Storage 0001
 Disk Storage 0002
 Disk Storage 0003
 Disk Storage 0004
Selection Method: Default

Name: Storage Pool 0001 (User-defined storage device pool)
Member Device:
 Disk Storage 0003
 Disk Storage 0004
Selection Method: Most Free Space First

Backup Job A - Storage device pool Any disk storage is selected.
Backup Job B - Storage device pool Storage Pool 0001 is selected.

Error Message

None.

Cause

This issue occurs due to a conflict between configurations for a selection method.

Solution

Dedicate storage devices for the storage device pool which configured a selection method.

Recommended scenario example:

Name: Any disk storage (System-defined storage device pool)
Member Device:
 Disk Storage 0001
 Disk Storage 0002
 Disk Storage 0003
 Disk Storage 0004
Selection Method: Default

Name: Storage Pool 0001 (User-defined storage device pool)
Member Device:
 Disk Storage 0001
 Disk Storage 0002
Selection Method: Least Free Space First

Name: Storage Pool 0002 (User-defined storage device pool)
Member Device:
 Disk Storage 0003
 Disk Storage 0004
Selection Method: Most Free Space First

Backup Job A - Storage device pool Storage Pool 0001 is selected.
Backup Job B - Storage device pool Storage Pool 0002 is selected.
None of the backup jobs use storage pool Any disk storage.