Field Notice: FN - 64335 - RAID Cache Offload Failure on 2208-Based ASICs Due to Unprogrammed SuperCap - Software Upgrade Recommended

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.

Revision History

Revision	Publish Date	Comments
1.0	23-Aug-17	Initial Release
10.0	11-Dec-17	Migration to new field notice system
10.1	13-Feb-18	Update for migration issues: Reference to section that was renamed.  Check paragraph tags for text.

Products Affected

Affected Product ID	Comments
CCS-RAID-9271	Affected releases include 10.0(x), 10.5(x) and 11.0(x)
CPS-RAID9271CV-8I	ESA Images Affected - 10.0.0-082, 10.0.0-125, 10.0.0-203, 10.0.1-087, 10.0.1-103
CPS-RAID9271CV-8I=	ESA Images Affected - 9.0.0-434, 9.1.0-032, 9.6.0-042, 9.7.0-125, 9.7.1-055, 9.7.2-047, 9.7.2-065, 9.7.2-131
CPS-RAID9271CV-8ID	This issue affects ONLY devices running iOS 10.3 or later, protected by VideoGuard DRM
CSM-RAID-9271	7.1.x, 7.5.x, 7.7.5 and any 7.7.0 build prior to 725
FS2K-RAID-9271
FS4K-RAID-9271
TG-RAID-9271
UCS-RAID9271CV-8I
UCS-RAID9271CV-8I=

Defect Information

Defect ID	Headline
CSCve91873	Cache Offload Failure on 2208 based ASIC due to un-programmed SuperCap VPD

Problem Description

In a quality audit, Cisco identified an issue with 2208-based ASIC Redundant Array of Independent Disks (RAID) Controllers. The SuperCap might have left manufacturing with an unprogrammed Vital Product Data (VPD). An unprogrammed VPD could cause the firmware to misinterpret the VPD as a different type of SuperCap, which could potentially result in data integrity issues due to an offload cache failure. Ultimately, this could lead to data loss.

Background

The VPD includes information about the SuperCap such as manufacturing part number, serial number, and date of manufacture. This problem occurred on SuperCaps produced between April 1, 2016 through April 15, 2017.

The affected RAID Controllers could be any of these: 926x, 927x, and 928x which are all based off of the 2208 ASIC. 12G SAS and 93xx RAID Controllers are NOT affected. Less than 1% of units are affected.

Problem Symptom

An unprogrammed VPD could cause the firmware to misinterpret the VPD as a different type of SuperCap. This might cause the SuperCap to have insufficient charge in order to complete data offload. This could potentially result in data integrity issues due to an offload cache failure.

Workaround/Solution

Units which might be impacted by this issue should be upgraded to run software as follows:

• For standalone rack servers, upgrade to Version 2.0.4c or later.
• For UCSM Integrated rack servers, upgrade to Version 2.2.4 or later.

See the "How To Identify Affected Products" section for details on how to identify impacted units.

How To Identify Affected Products

In order to identify if a unit is impacted by this issue, locate the serial number for the RAID card from the log files. Enter the serial number in the FN64335 Serial Number Validation Tool.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

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