HP X5000 G2 Network Storage System Administrator Guide

11. Replace the top back panel.
12. Reinsert all rear components in the enclosure.
13. Replace the enclosure in the rack as described in “Inserting the system enclosure into the rack”
(page 68).
Removing and replacing a SAS cable
CAUTION: Remove only one cable at a time to prevent downtime.
IMPORTANT: Check the QuickSpecs for the device before you purchase and connect SAS cables
to ensure that the cables do not exceed the maximum supported length. Only specific cable lengths
were tested and approved for use with external disk enclosures.
Ensure that cabling in the back of the rack system does not interfere with system operation or
maintenance. Bind cables loosely with cable ties and route the excess out of the way, along the
side of the rack. When cables are tied together and routed down the side of the rack, system
components and indicators are easily visible and accessible.
Removing a SAS cable
Remove the SAS cable that connects the system SAS I/O module to the disk enclosure.
Replacing a SAS cable
1. Connect the SAS cable between the system SAS I/O module and the disk enclosure.
2. Verify that the replacement SAS cable is working properly by checking the associated LED
status on the SAS I/O module.
3. Confirm that the system has resumed normal operations.
Removing and replacing the SAS I/O module
Removing the SAS I/O module
1. Verify the failed component as described in “Verifying component failure” (page 66).
2. Label the cables so they can be returned to their original locations.
3. Unplug all cables from the SAS I/O module.
IMPORTANT: The SAS I/O cables must be installed in the same slots from which they are
removed or the system might fail.
4. Pull up on the SAS I/O module release button (1, Figure 57 (page 74)).
Removing and replacing a SAS cable 73