User guide

Compaq Smart Array 431 Controller User Guide
Fault tolerance may be compromised due to non-drive problems such as a
faulty cable, faulty storage system power supply, or a user accidentally turning
off an external storage system while the host system power was on. In such
cases, obviously the physical drives do not need to be replaced. However, data
loss can still occur in this situation, especially if the system was busy at the
time the problem developed.
In cases of “legitimate” drive failure, once copies of important data have been
made (if possible), replace any drives that have failed to prevent further drive
problems in the future. After these (multiple) drives are replaced, the fault
tolerance may again be compromised, power may need to be cycled, and the
1779 POST message may again be displayed. Press F2 to re-enable the logical
drive(s), recreate your partitions, and restore all data from backup.
Because of the risk that fault tolerance may be compromised at some point in
the future, make regular backups of all logical drives.