Field Notice: FN - 62842 - License Install Causes Application Using Write Acceleration to Fail in DS-X9032-SSM

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Updated:July 31, 2007

Document ID:FN62842

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July 31, 2007

NOTICE:

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Products Affected

Products Affected
MDS9000 - DS-X9032-SSM

Problem Description

License install causes applications using Write Acceleration to fail in DS-X9032-SSM.

Background

This issue is caused by a license conflict.

Problem Symptoms

If you install a feature license on any module, the storage services module DS-X9032-SSM with the SCSI flow feature will be reprovisioned and write acceleration on the flows will be affected.

For example, if you have a switch with a DS-X9032-SSM card installed with write acceleration configured, then add a DS-X9302-14K9 card, when you enable the license for the DS-X9302-14K9 card, this will disrupt the write acceleration data flow on the DS-X9032-SSM card.

Workaround/Solution

To recover from this issue, please follow these steps:

Enter the shutdown command to shut the host and storage ports that are using the SCSI flow.
Enter the no scsi-flow flow-id flow-id command to remove the SCSI flow.
Enter the no ssm enable feature scsi-flow force module slot-number command to unprovision the SCSI flow. This will reload the module.
When the module is up, enter the ssm enable feature scsi-flow module slot-number command to enable the SCSI flow feature.
Reconfigure the SCSI flow.

This issue has been fixed in SAN-OS release 3.1.3a and onwards.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS	Description
CSCsj04224 (registered customers only)	IPS license install causes application using WA to fail in SSM

Revision History

Revision	Date	Comment
1.0	31-JUL-2007	Initial Public Release

For More Information

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