Disk Drive Backplane; Removing The Disk Drive Backplane - IBM Power System LC921 9006-12P Service Manual

Ubuntu Linux operating system
To run the rescan-scsi-bus command in the Ubuntu Linux operating system, log in to the
system as the root user, and run the following command:
rescan-scsi-bus
The rescan-scsi-bus tool is available in the scsitools package; install the package by using
the following command:
sudo apt-get install scsitools
Red Hat Enterprise Linux (RHEL) version 7.2
To run the rescan command in the REHL version 7.2 operating system, log in to the system as the
root user, and run the following command:
rescan-scsi-bus.sh -a
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).
5. Load or restore data from your backup media.
Removing and replacing the disk drive backplane in the 9006-12P
Learn how to remove and replace the disk drive backplane in the IBM Power System LC921 (9006-12P)
system.
About this task
You can use a commercially available magnetic tip screwdriver to remove and replace the screws.
Removing the disk drive backplane from the 9006-12P system
Learn how to remove the disk drive backplane in the IBM Power System LC921 (9006-12P) system.
Before you begin
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.
Removing and replacing parts in the 9006-12P system 15