Hardware Problems
HP Servers Troubleshooting Guide
2-29
HP CONFIDENTIAL
Writer: Ted Weiman File Name: c-ch2 Hardware Problems.doc
Codename: Generic TSG Part Number: 161759-007 Last Saved On: 11/19/02 9:31 AM
•
Do not replace more than one drive at the same time (for example, when the
system is off), since the fault tolerance can be compromised.
CAUTION:
Replacing more than one drive at the same time compromises the
fault tolerance. When a drive is replaced, the controller uses data from the other
drives in the array to reconstruct data on the replacement drive. If more than one
drive is removed, a complete data set is not available to reconstruct data on the
replacement drive or drives, and permanent data loss can occur.
•
Do not turn off a connected hard drive enclosure when the server containing the
Smart Array Controller is powered up. Also, do not power up the server before
powering up the drive enclosure.
CAUTION:
Turning off a connected hard drive enclosure when the server
containing the Smart Array Controller is powered up may cause the Smart Array
Controller to mark the drives in this enclosure as
failed
. Powering up the server
before powering up the drive enclosure may also cause the Smart Array
Controller to mark the drives in this enclosure as
failed
. Permanent data loss can
occur.
•
If POST error message 1786 occurs when the system is powered up after one or
more drives have been replaced while the system is powered down, you will be
prompted to:
PRESS <F1> TO BOOT THE SYSTEM AND REBUILD THE REPLACED DRIVE
-Or-
PRESS <F2> TO BOOT THE SYSTEM AND NOT REBUILD THE DRIVES
CAUTION:
Pressing the
F2
key causes permanent data loss to the entire logical
drive. Press the
F2
key only if all of the drives have been replaced or if complete
data loss is desired.