Figure 1 FC disk drive numbering
Figure 2 (page 2) shows the numbering of SAS small form factor (SFF) disk drives and Figure 3 (page 2) shows the numbering of large form factor (LFF) disk drives in the disk enclosure used with the P63x0/P65x0 EVA.
Figure 2 SAS SFF disk drive numbering
Figure 3 SAS LFF disk drive numbering
Types of disk drive failures
There are two types of disk drive failures:
•Hard failure: The disk drive is no longer functioning properly and has been assigned a failed status. This type of failure is indicated by an operational state of 
(Failed) in HP P6000 Command View. The amber fault status indicator on the disk is typically on.
•Impending failure: Although the disk drive is still functioning, errors have been detected that indicate an impending failure. This type of failure is not accompanied by a failed status.
CAUTION: A disk drive with an impending failure appears to be operating normally in HP P6000 Command View, and the fault light on the disk is off. Therefore, it is important that you positively identify the disk drive before performing the replacement. Work with the HP Solution Center to ensure you identify the correct disk drive for replacement.
Verifying system redundancy
Before replacing a disk, examine the redundancy status of the entire storage system to ensure a disk can be removed without impacting data availability.
1.Open HP P6000 Command View and click the icon of the storage system you want to view (Figure 4 (page 2)).
Figure 4 Selecting a storage system
2.On the Initialized Storage System Properties window, click Check Redundancy (Figure 5 (page 2)).
Figure 5 Checking redundancy
3.If the system is redundant, continue with “Verifying component failure” (page 3).
If the system is not redundant, information is displayed indicating the cause of the lack of redundancy. See the HP P6000 Command View online help to interpret the information that is displayed. In this situation, work with your HP call center agent to determine how to proceed.
CAUTION: Do not proceed with the disk drive replacement until you are certain the storage system is redundant.
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