Lenovo DM120S Service Manual page 6

current disk drive information. You also avoid the possible prevention of disk partitioning because disk
drives are not recognized. The DQP also notifies you of non-current disk drive firmware.
Lenovo Data Center Support
• Best practice is to have the current versions of disk shelf (IOM) firmware and disk drive firmware on your
system before adding new disk shelves, shelf FRU components, or SAS cables. Current versions of
firmware can be found on the Lenovo Support Web site.
Lenovo Data Center Support
• Disk drive firmware is automatically updated (nondisruptively) on new disk drives with non current
firmware versions.
Note: Disk drive firmware checks occur every two minutes.
• If needed, you can turn on the disk shelf's location (blue) LEDs to aid in physically locating the affected
disk shelf:
storage shelf location-led modify -node node_name -shelf-name shelf_name -led-status on
A disk shelf has three location (blue) LEDs: one on the operator display panel and one on each IOM12
module. Location LEDs remain illuminated for 30 minutes. You can turn them off by entering the same
command, but using the off option.
• If needed, you can refer to the Monitoring disk shelf LEDs section for information about the meaning and
location of disk shelf LEDs on the operator display panel and FRU components.
Step 1. If you want to manually assign disk ownership for the replacement disk drive, you need to disable
disk ownership automatic assignment if it is enabled; otherwise, go to the next step.
Note: You need to manually assign disk ownership if disk drives in the stack are owned by both
controllers in an HA pair.
Note: You manually assign disk ownership and then reenable disk ownership automatic
assignment later in this procedure.
Verify if disk ownership automatic assignment is enabled: storage disk option show
a.
If you have an HA pair, you can enter the command at the console of either controller.
If disk ownership automatic assignment is enabled, the output shows "on" (for each controller)
in the "Auto Assign" column.
b. If disk ownership automatic assignment is enabled, you need to disable it:
storage disk option modify -node node_name -autoassign off
You need to disable disk ownership automatic assignment on both controllers in an HA pair.
Step 2. Properly ground yourself.
Step 3. Unpack the new disk drive, and set it on a level surface near the disk shelf.Save all packaging
materials for use when returning the failed disk drive.
Note: Lenovo requires that all returned disk drives be in a ESD-rated bag.
Step 4. Physically identify the failed disk drive from the system console warning message and the
illuminated attention (amber) LED on the disk drive.
Note: The activity (green) LED on a failed disk drive can be illuminated (solid), which indicates the
disk drive has power, but should not be blinking, which indicates I/O activity. A failed disk drive has
no I/O activity.
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Service Guide for DM120S, DM240S, and DM600S