Sun Storage 6920 System
 

GCS>Sun Microsystems>Storage - Disk>Modular Disk - 6xxx Arrays
 

The purpose of this document is to provide basic steps for snapshot deletion for the 6920 array, via the Browser User Interface(BUI) or sscs Command Line Interface(CLI).

Content will be limited to a basic usage using the CLI or BUI interfaces for deleting snapshots, and provide help with some usage failure scenarios for this activity. Consider reviewing some of the following documents if you are looking to perform actions beyond the scope of this document:

• Best Practices for the Sun StorEdge 6920 System, Version 3.0.1
• Sun StorEdge 6920 System CLI Quick Reference Guide, Release 3.0
• <Document: 1009915.1>  :  Troubleshooting Sun StorEdge[TM] 6920 Configuration Problems
• Sun StorEdge 6920 System Administration Guide For the Browser Interface Management Software, Release 3.0

NOTE 1: It is very rare to delete a snapshot device, except in the case of fault or failure. Typically the best practice is to perform a resnap, for day to day snapshot solutions. This avoids changing the snapshot volume WWN, and having to compensate for that in the scripting client. Reference document <Document: 1007163.1> : Validating Sun StorEdge[TM] 6920 Snapshot Modification

A. Identify the Snapshot to Delete

Reference document <Document: 1004359.1> : Validating Sun Storedge[TM] 6920 Snapshot Details and State

Once identified, continue to Step B.

B. Verify that the Snapshot device is not Mapped

Reference document <Document: 1008480.1> : Validating Mapping Status and Details on a Sun StorEdge[TM] 6920

C. Basic Usage For Snapshot Deletion

SSCS

Basic sscs deletion follows the same syntax as basic volume deletion.
Reference document <Document: 1005385.1> : Validating Sun StorEdge[TM] 6920 Volume Deletion

BUI

Basic BUI deletion is as follows:

1. Click on Configuration Services or Common Array Manager link.
2. Click on Logical Storage tab or menu tree
3. Click on Snapshot tab or menu tree
4. Check the box next to the snapshot name
5. Click the Delete button and click OK to confirm.

• If you get a failure message go to Step E.
• If you are looking to remove the snapshot repository, continue to Step D.
• If successful, the snapshot will not show up in the snapshot summary screen.

D. Snapshot Repository Deletion

A single snapshot repository is associated with a single volume or mirror component. It can only be deleted if the number of snapshots for the parent volume is equal to zero. This can be viewed in the volume details, reference document <Document: 1009974.1> : Validating Volume State and Details on a Sun StorEdge[TM] 6920

SSCS

usage is simply:

sscs snapshot -r volume <parent-volume>

example:

sscs snapshot -r volume parent_volume

This will free the snapshot reserve space associated with parent_volume.

BUI

1. Click on Configuration Services or Common Array Manager link.
2. Click on Logical Storage tab or menu tree
3. Click on Volumes tab or menu tree
4. Click on the Volume Name
5. Click on Delete Snapshot Reserve button and click OK to confirm.

• If you get a failure message go to Step E.
• If successful, the snapshot reserve section will not show a pool in the volume details screen.

E. Failure

BUI

Message:
An error occurred. Please contact your system administrator

Action:
Please go to Step F.

SSCS
Message:
Error: The operation failed.

Action:
Please go to Step F.

Message:
Item is in use: ; operation failed.

Action:
Snapshot reserve still has a snapshot in use. See Step E.

F. Data Collection

Please collect the following information:

• 6920 Solution Extract, Reference document <Document: 1003756.1> : How to collect an extractor from a Sun StorEdge[TM] 6920 (2.x and 3.x)
• The message given by SSCS or BUI(screen capture if possible)
• The command used, if by SSCS
• The input and selections for the new volume wizard in the BUI
• The following sscs output:

sscs list volume
sscs list volume <volume_name>

The Knowledge Work Queue for this article is KNO-STO-MIDRANGE_DISK.

Sun Support

G. Validate command provided

Validate command provided against examples in the Sun StorEdge 6920 System CLI Quick Reference Guide, Release 3.0.

Ensure that options are valid based on the usage available in reference guide.

H.
error occurred

If the customer reports:

An error occurred. Please contact your system administrator

OR

Error: The operation failed.

Validate the services on the Service Processor. Reference document <Document: 1007129.1>  

I. Perform health check of array

Reference document <Document: 1005447.1> : Sun StorEdge[TM] 6920 Health Checklist

J. Escalate

Provide the following:

• Description of what is not being displayed properly


• Results of Step G.


• Results of Step H.


• Results of Step I.


• Location of everything in Step F
  

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