Sun StorageTek SL3000 Modular Library System
 
Sun StorageTek SL8500 Modular Library System
 
Sun StorageTek SL500 Modular Library System
 

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In this Document

Symptoms

Changes

Cause

Solution

References

Created from <SR 3-7723274231>

Applies to:

Symptoms

Cartridges entered into the library cannot be made available or active and are showing up as orphaned.

Changes

Implementing Changes to Activated Capacity
Increasing Activated Capacity
The following are special considerations for installing new activated storage capacity:

•See “Hardware Activation File Installation Process” for details on purchasing and installing a Capacity activation file.
•If the new activated capacity exceeds the physical capacity, no corrective action is necessary. Physical cells that cannot be activated due to capacity limits will be activated later whenever additional capacity activation files are installed.
•You must configure all affected library host applications to recognize the new activated storage cells. See “Host Notification of Capacity Changes” for details.
•In non-partitioned libraries, all newly activated cells are immediately available for use.
•In partitioned libraries, all newly activated cells are added as “un-allocated,” and are therefore not available for use. You must manually allocate the new cells to partitions before the cells can be used for cartridge storage. See “Partition Configuration Tasks” for detailed instructions.

Decreasing Activated Capacity
Following are special considerations for deleting activated storage capacity.
Caution – Deleting activated capacity is an exceptional situation; use caution when doing so.
•See “Delete a Hardware Activation File” for details on deleting activated capacity.
•Storage cells corresponding to the reduced capacity will become inaccessible, and any cartridges within those cells will be orphaned. No checks are made to identify cartridges that will be orphaned. See “Orphaned Cartridges in Non-Partitioned Libraries” for details.
•You must configure all affected library host applications to recognize the activated storage cell changes. See “Host Notification of Capacity Changes” for details.
•For partitioned libraries:
•The total number of storage cells allocated to all library partitions cannot exceed the activated capacity of the library.
Caution – You must manually de-allocate cells from partitions so the total allocation does not exceed the new activated capacity.
•If, after capacity has been decreased, the total number of cells allocated to all partitions is still less than the new activated capacity, you do not need to reconfigure the partitions.

Host Notification of Capacity Changes
When storage capacity is added or removed, the library controller notifies all affected hosts according to their interface requirements. SCSI hosts are notified by a “Mode Parameters Changed” unit attention. The host must re-audit the library to determine the specific configuration changes. See the appropriate tape management software documentation for detailed procedures and commands.

Refer to the Library Users Guide

Cause

In non-partitioned libraries, an orphaned cartridge is a cartridge located in an un-activated storage cell. Orphaned cartridges are inaccessible to all hosts.

A cartridge can become orphaned for a variety of reasons. Following are some possible causes:
•Activated storage capacity has been reduced.
•The cartridge has been moved to an un-activated or inaccessible cell through manual intervention.

Solution

If SL Console identifies an orphaned cartridge, it displays a warning message. You can then use the following tools to help you resolve and disposition the orphaned cartridge:
• Generate a report of orphaned cartridges

• Perform an audit of the library
• Perform a recovery move on a cartridge

Resolve Orphaned Cartridges

Recovery Move

This procedure can be performed at either of the following:
 • Standalone SL Console
 • Web-launched SL Console

Task Purpose
Use this procedure to resolve any orphaned cartridges that are displayed on the SL Console.

Task Steps
If the SL Console identifies an orphaned cartridge, it displays a warning message. Perform recovery moves on all cartridges listed in the warnings before proceeding to “Commit Partition Configuration Changes”.

Caution – Potential data loss. If you do not perform “Recovery Moves”, host applications may find the orphans and treat them as scratch volumes. Valid data could be overwritten.

References

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