IBM Storwize V7000, Problem Determination Manual

Page: 262 / 314

6. Disengage the rail location pins
2
.
7.
From the other side the rack cabinet, grip the rail and slide the rail pieces
together to shorten the rail.
8. Disengage the rail location pins
2
.
9. Starting from the location of the previous rail assembly, align the bottom of
the rail with the bottom of the two rack units. Insert the rail location pins
through the holes in the rack cabinet.
10. Insert a clamping screw into the upper mounting hole between the rail
location pins.
11. Tighten the screw to secure the rail to the rack.
12.
Working from the rear of the rack cabinet, extend the rail that you secured to
the front to align the bottom of the rail with the bottom of the two rack units.
Note: Ensure that the rail is level between the front and the back.
13. Insert the rail location pins through the holes in the rack cabinet.
14. Insert a clamping screw into the upper mounting hole between the rail
location pins.
15. Tighten the screw to secure the rail to the rack from the back side.
16. Repeat the steps to secure the opposite rail to the rack cabinet.
General storage system procedures
This section provides general information about hardware and Fibre Channel link
issues.
SAN problem determination
The procedures that are provided here help you solve problems on the Storwize
V7000 Unified system and its connection to the storage area network (SAN).
SAN failures might cause Storwize V7000 Unified drives to be inaccessible to host
systems. Failures can be caused by SAN configuration changes or by hardware
failures in SAN components.
The following list identifies some of the hardware that might cause failures:
v
Power, fan, or cooling switch
v
Application-specific integrated circuits
v
Installed small form-factor pluggable (SFP) transceiver
v
Fiber-optic cables
Perform the following steps if you were sent here from the error codes:
1. Verify that the power is turned on to all switches and storage controllers that
the Storwize V7000 Unified system uses, and that they are not reporting any
hardware failures. If problems are found, resolve those problems before
proceeding further.
2.
Verify that the Fibre Channel cables that connect the systems to the switches
are securely connected.
3. If you have a SAN management tool, use that tool to view the SAN topology
and isolate the failing component.
238
Storwize V7000 Unified: Problem Determination Guide Version