HP A3550A User Manual - A3661-90001 - Page 327
Disk Module Removal and Replacement
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Disk Module Removal and Replacement Caution NEVER remove or replace faulted disk modules when array power is OFF as data can be lost. NEVER rearrange faulted disk modules when array power is either ON or OFF as data can be lost. Handle disk modules very carefully as they can be damaged easily by shock and vibration. Disk modules having different storage capacities or different model numbers should not be bound into the same RAID group. A3396A 4-GB disk modules should not be bound in the same LUN with A3666A LP 4-GB disk modules because performance can degrade. Strap the ESD wrist strap to your wrist and ground it to the disk array chassis (or suitable ground). Place the disk module on an ESD conductive sheet when it is removed from its carton. Use ESD kit P/N 5182-4119 (supplied with each array). Disk Module Removal and Replacement 7-3 Removal and Replacement