Sun Storage 2500, 2500-M2, and 6000 Arrays: Failed Disk Alarm Not Removed After Disk Replacement

Asset ID:	1-72-1564298.1
Update Date:	2017-06-15
Keywords:

Solution Type Problem Resolution Sure

Solution 1564298.1 : Sun Storage 2500, 2500-M2, and 6000 Arrays: Failed Disk Alarm Not Removed After Disk Replacement

Applies to:

Sun Storage 2510 Array - Version Not Applicable and later
Sun Storage Common Array Manager (CAM) - Version 6.5 and later
Sun Storage 6580 Array - Version All Versions and later
Sun Storage 2530-M2 Array - Version Not Applicable and later
Sun Storage 2540-M2 Array - Version Not Applicable and later
Information in this document applies to any platform.

Symptoms

After replacing a disk, the disk is seen as Optimal, is working properly, and there are no symptoms of disk failure. Nevertheless, the alarm on the disk is not automatically cleared from Sun Storage Common Array Manager (CAM).

Example:

Although the disk at Tray.85.Drive.08 is seen as Optimal after the replacement...

TRAY,SLOT      STATUS      CAPACITY      CURRENT DATA RATE          PRODUCT ID     FIRMWARE VERSION
---------      -------     --------      -----------------          ----------------       ----------------

85,8         Optimal     279 GB        3 Gbit/s       ST330055SSUN300G       0D92

...the alarm is not removed:

Alarm ID : alarm90
Description: A hot spare is in use.
The affected virtual disk is vdisk1, failed drive(s) Tray.85.Drive.08, spare(s) used Tray.00.Drive.12, the affected volume(s) vmfs-1 vmfs-2 sql-db-1 sql-db-2 sql-db-3 sql-db-4 sql-db-5
Severity : Major
Element : t85drive8
GridCode : 70.66.1021
Date : 2013-02-01 03:21:06

Please note that the scenario described in this document specifically refers to those disk failure alarms that are not cleared automatically by the disk replacement. If you encountered an alarm for an undefined fault on a good disk, please refer to <Document 1562533.1> Sun Storage Common Array Manager (CAM) Generates an Alarm for an "Undefined Fault"

Cause

There are various possible causes:

Multiple CAM instances are monitoring the array.
There may be stale CAM configuration information.
The disk has been assigned to an empty VDISK.
An error may have occurred during the replacement.

Solution

STEP 1

Re-register the array in CAM to try to clear the stale alarm.

First, please check if multiple CAM instances are in use. Administering the array from multiple CAM instances may generate discrepancies and lead to stale configurtation information.

If this is your case:

Unregister the array from all the CAM instances.
Re-register the array only on one CAM instance.

If there is only a single instance of CAM, then simply unregister and re-register the array on the same host.

To unregister the array in the CAM GUI	To register the array in the CAM GUI
Go to the "Storage System Summary" page Select the checkbox next to the name of the array from the list Click the "Remove" button	Go to the "Storage System Summary" page Click the "Register..." button Enter the IP address of one of the controllers in the pop-up box that appears, click "Next" and follow the rest of the instructions

If STEP 1 did not remove the alarm, please move to STEP 2.

STEP 2

It may be possible that the new drive has been assigned to an empty VDISK. This scenario is covered and solved in <Document 1496245.1> Failed Drive Alarm May Not Clear Automatically After Drive Replacement When Drive is Assigned to an Empty VDISK

If this is not your case, or if STEP 2 did not remove the alarm, please move to STEP 3.

STEP 3

It may be possible that something went wrong during the disk replacement. There may have been a problem with not following the correct procedure, for example. Please review <Document 1311770.1> CAM - How to Remove and Replace Disk Drive [Video]:ATR:2361:0.

In order to remove the alarm, it may be necessary to perform a dummy replacement of the disk, replacing the disk with itself.

If the disk is classified as a FRU (Field Replaceable Unit), please contact your local Oracle Support to request assistance. If the disk is classified as a CRU (Customer Replaceable Unit), you can either contact your local Oracle Support for assistance or proceed to perform the dummy replacement.

As the procedure for the dummy replacement will be the same as for the replacement of disks flagged as Impending Failure, please check the following document for full details of the procedure: <Document 1311776.1> CAM - How to Remove and Replace Midrange Disk Impending Disk Failure:ATR:2362:2.

Should the alarm still persist, please contact Oracle Support.

Do you still have questions? You can use My Oracle Support Communities. Communities put you in touch with industry professionals like yourself. They are monitored by Oracle support engineers, so you can expect reliable and correct answers. Ask questions and see what others are asking about in the Disk Storage 2000, 3000, 6000 RAID Arrays & JBODs Community.

References

<NOTE:1311776.1> - CAM - How to Remove and Replace Midrange Disk Impending Disk Failure:ATR:2362:2
<NOTE:1496245.1> - Failed Drive Alarm May Not Clear Automatically After Drive Replacement When Drive is Assigned to an Empty VDISK
<NOTE:1311770.1> - CAM - How to Remove and Replace Disk Drive [Video]:ATR:2361:0
<NOTE:1562533.1> - Sun Storage Common Array Manager (CAM) Generates an Alarm for an "Undefined Fault"

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