System information

2-14
AlphaServer 800 Service Guide
Table 2-4 provides troubleshooting hints for systems with a StorageWorks RAID
array subsystem.
Table 2-4 Troubleshooting RAID Problems
Symptom Action
Some RAID drives do not
appear on the show device d
display.
Valid configured RAID logical drives will appear
as DRA0--DRAn, not as DKn. Configure the
drives by running the RAID Configuration Utility
(RCU), following the instructions provided with
the StorageWorks RAID array subsystem.
Reminder: several physical disks can be grouped
as a single logical DRAn device.
Drives on the SWXCR
controller power up with the
amber Fault light on.
Whenever you move drives onto or off of the
controller, run the RAID Configuration Utility to
set up the drives and logical units. Follow the
instructions provided with the StorageWorks
RAID array subsystem.
Cannot access disks
connected to the RAID
subsystem on Windows NT
systems.
On Windows NT systems, disks connected to the
controller must be spun up before they can be
accessed.
While running the ECU, verify that the controller
is set to spin up two disks every 6 seconds. This
is the default setting if you are using the default
configuration files for the controller. If the
settings are different, adjust them as needed.