IBM Power System LC921 9006-12P, Service Manual

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The rescan-scsi-bus tool is available in the sg3_utils package; install the package by using the
following command:
yum install sg3_utils
You can also refer to: Adding a Storage Device or Path (https://access.redhat.com/
documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Storage_Administration_Guide/logical-
unit-add-remove.html).
6. Load or restore data from your backup media.
Removing a drive on module from the 9006-12P system
Learn how to remove a drive on module (DOM) from the IBM Power System LC921 (9006-12P) system.
Before you begin
Locate the drive. Ensure that the media device is unmounted from the Linux system and if needed,
remove the media from the device. Use the arcconf command. For details, see “arcconf commands” on
page 92.
Power off the system and place it in the service position. For instructions, see “Preparing the 9006-12P
system to remove and replace internal parts” on page 86.
Procedure
1. Attach the electrostatic discharge (ESD) wrist strap.
The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is
completed, and if applicable, until the service access cover is replaced.
Attention:
• Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack,
or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from
damaging your hardware.
• When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is
used for static control. It does not increase or decrease your risk of receiving electric shock
when using or working on electrical equipment.
• If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging
and installing or replacing hardware, touch an unpainted metal surface of the system for a
minimum of 5 seconds. If at any point in this service process you move away from the
system, it is important to again discharge yourself by touching an unpainted metal surface for
at least 5 seconds before you continue with the service process.
2. Remove the DOM from the system backplane as shown in Figure 9 on page 13.
Depending on the DOM model, unplug any power cable from the DOM to the system backplane.
12 Power Systems: Servicing the IBM Power System LC921 (9006-12P)