Compaq StorageWorks 4000 - RAID Array Guide de l'utilisateur télécharger pdf (Page 77)

Compaq StorageWorks RAID Array 4000 User Guide

The three fans should start turning immediately. The status LED on the Fan

Assembly and the fault LED on the front panel will turn green after a few

seconds, indicating a fully functioning Fan Assembly.

If you must replace a hot-pluggable drive, it is important that you

follow the guidelines in this section. Failure to do so could result in data loss

and could void your warranty.

RAID 0 is not a fault-tolerant configuration. Never remove a drive from a

RAID 0 array unless it has failed. Drive failure is indicated by an amber Drive

Failure LED (see Figure 4-25). If you are using a RAID 0 configuration,

removal of an operating drive is not allowed and will result in loss of data. To

remove a working drive without losing data, the entire array must be backed

up, the drive must be replaced, and the entire array must be restored. Backing

up a single drive and replacing it will not restore the array.

There are some instances in which you may replace a drive in

RAID 1, 4, or 5 configurations. Figure 4-25 illustrates the conditions when

you may or may not remove a drive in a fault-tolerant system.

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Compaq StorageWorks 4000 - RAID Array Guide de l'utilisateur Page 77