Specifications

Chapter 5 Maintenance and Service 5-3
Note – Remember to reset the battery date on both controllers after a battery
replacement. Refer to Chapter 6 in the Sun StorEdge RAID Manager 6.22 User’s Guide
and read the section “Recovering from Battery Failures” for details on resetting the
battery date.
Note – The power supplies have a thermal protection shutdown feature. To recover
from a power supply shutdown, see Section 7.1 “Recovering From a Power Supply
Shutdown” in the Sun StorEdge A3500/A3500FC Controller Module Guide.
5.1.1 Disk Drives
Refer to Chapter 3 in the Sun StorEdge RAID Manager 6.22 User’s Guide for
procedures to verify the status of each disk drive.
When a disk drive fails, the disk drive amber LED should be on. See Section 4.3.7
“Disk Drive Problem” in the Sun StorEdge A3500/A3500FC Controller Module Guide
for further details.
Note – RAID Manager Recovery Guru will lead you through a disk drive
replacement step by step. Do not deviate from this procedure or you may end up
with ghost drives, ghost LUNs, or drive has not been detected problems. For the same
reason, do not swap disk drives while the controller module is powered off.
Make sure each disk drive has the supported firmware level. If there is a failure
affecting the entire disk tray, RAID Manager 6 Recovery Guru will report the drive
side channel failure. You need to first fix the drive side channel failure before any
drive can be reconstructed (see Section 5.2.10, “Disk Drives” on page 5-14).
Note – Do not swap drives between an A1000 and an A3x00 or you may end up
with DacStore and NVSRAM corruption.
Replacing a failed drive in a RAID 0 LUN requires special attention. Stop any
volume manager or upper level software from accessing the LUN to prevent
possible data corruption. As soon as the drive is replaced, the LUN is described as
“optimal.” Because the data was lost since it is a RAID 0 LUN, you must reformat
the LUN. See page 10 of the Sun StorEdge RAID Manager 6.22.1 Release Notes for more
information.
Never “revive” drives unless a LUN is optimal, as described in “Recovery Guru
Revive Option Is Removed” inthe Sun StorEdge RAID Manager 6.22.1 Release Notes.