Sun Storage S1 Array
 

PLA-Support>Sun Systems>Sun_Other>Sun Collections>SN-OTH: DISK-CAP VCAP
 

In this Document

Goal

Solution

A. Identifying the Defective Disk Drive

B. Removing the Defective Disk Drive

C. Installing the New Disk Drive

References

Oracle Confidential INTERNAL - Do not distribute to customer (OracleConfidential).
Reason: The disks of the S1 arrays are FRU components.

Applies to:

Goal

 How to replace a disk drive in a Sun StorEdge S1 array.

Solution

DISPATCH INSTRUCTIONS
WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED:
Be familiar with SCSI JBODs and SCSI concepts in general.

TIME ESTIMATE: 60 minutes
TASK COMPLEXITY: 2

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS::

PROBLEM OVERVIEW:
A disk has failed in the S1 SCSI array and needs to be replaced.

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?
The array should be powered on.

WHAT ACTION DOES THE CUSTOMER NEED TO TAKE:
none

WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

IMPORTANT

Before changing the disk, check that there aren't any dependancies to other applications accessing the defective disk, and if there are, take them into account before considering replacing the disk.

In order to check these dependancies, please consult the Quickstart Reference for Sun Storage disk replacement (Doc ID 1006405.1).

If necessary, refer to the documentation that came with your Volume Management software (ZFS, VxVM, SVM) for any procedures that you might have to perform before you can replace the disk drive.

After eliminating all risk, please go through all the steps described below:

A. Identifying the Defective Disk Drive

Caution - To prevent any possibility of data loss, back up data prior to removing disk drives.

To access the disks, you must first remove the bezel. Release the front bezel by pressing the latches on both ends and pulling the bezel away from the array, as seen in the picture below:

Check the LED status on the lower left side of the array. If one of the Disk Drive LEDs is unlit, then the disk is faulty. The position of the binary display indicates the base number (first number) of the three drive sequence (see picture below). See the pull-out card or the Binary SCSI ID LEDs section.

If the LEDs don't offer any information about the failed drive, check the error notes from the action plan which indicate the faulty drive.

The issue can also be reflected if the customer is using the Sun Storage Subsystem Manager to assist in the administration the Sun StorEdge S1 array. If in doubt, please consult the following KM doc: How to identify drives in a Sun StorEdge[TM] S1 or a Netra[TM] st D130 storage array [ID 1002163.1]

B. Removing the Defective Disk Drive

Caution – If the array is running and a drive slot does not contain a disk drive or foam filler, the array cannot cool properly and might overheat. If you do not replace the drive, you must install a foam filler in the empty slot. The foam fillers are air
baffles that allow the system to maintain maximum cooling. Verify that you have either a replacement drive or a foam filler before removing a disk drive from the array.

1. Ensure there is no activity to the drives.

If the Disk Drive LED for that disk drive is flashing green, the drive is still active.  When the Disk Drive LED is lit solid green, then the drive is no longer active and it is safe to remove it.

Note – The LED might remain unlit for a long period if the disk drive is under an unusually heavy load. In this case, you must not remove the disk drive. However, if the LED is unlit because the disk drive has failed, then of course it is safe to remove
the drive. You will know if the disk drive has failed, because a message informing you of the failure will appear on the console screen.

2. Prepare the software environment to remove the drive.

See the documentation that came with your software for application-specific instructions that you might need to perform before you can remove the disk drive.
If necessary, refer to the documentation that came with your Volume Management software (ZFS, VxVM, SVM) for any procedures that you might have to perform before you can replace the disk drive.

3. Unlatch the drive bracket handle by sliding the latch in the direction indicated in the picture below:

Pull the bracket handle out and swing it open.

4. Continue to pivot the disk drive bracket handle against the chassis, applying mild pressure, until the drive disconnects.

5. Slide the drive out. 

C. Installing the New Disk Drive

1. Open the locking handle on the disk drive.
Push in the direction of the arrow to release the latch.

2. Slide the replacement disk drive into the vacant slot.

3. Firmly push the drive until the locking handle engages and the drive is flush with the array’s front.

4. Close the locking handle fully.

5. Re-place the front bezel.

References

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