HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 Service Manual (A5 - Page 125

Topology and Array Planning Failing Continue component after failure What happens and how to recover Disk module Yes Applications continue to run on all supported RAID levels (RAID1, 0/1, and 5). The system administrator or service provider hotswaps the failed disk module. Controller No module in singlecontroller module array (no high availability) The disk array fails. The system administrator or service provider replaces the controller module and the system administrator restarts the operating system and applications. Controller module in dualcontroller module disk array No on path to failed controller module; Yes on alternate path through second controller module Ownership of the failed controller module's LUNs can transfer automatically to the remaining operational controller module if primary and alternate paths have been configured in LVM. If so, LVM switches automatically and transparently to the alternate path. The system administrator or service provider hot-swaps the failed controller module. Fan module Yes Applications continue to run. The system administrator or service provider hot-swaps the fan module. Power Yes supply modules HP Fibre No Channel-AL Hub Applications continue to run when one power supply module fails. The system administrator or service provider hot-swaps the failed power supply module. No I/O operations are possible between the host and any disk arrays because all I/O traffic is routed through the HP Fibre Channel-AL Hub. The authorized service provider replaces the failed HP Fibre Channel-AL Hub and the system administrator restarts the operating system and applications. 125