HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 - (English) Advanc - Page 108

Table 8 Basic Topology Error Recovery 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 dual controller 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 controller module. Fan module Yes Applications continue to run. The system administrator or service provider hot-swaps the fan module. Power Yes supply modules Applications continue to run when one power supply module fails. The system administrator or service provider hot-swaps the failed power supply module. Fibre Channel I/O adapter No on path to failed adapter; Yes if array has dual controller modules and alternate paths have been configured I/O operations fail along the path through the failed adapter. If the host has two Fibre Channel adapters connected to a dual controller module disk array, the array can be accessed through the path to the operational adapter and controller module if primary and alternate paths have been configured in LVM. If so, LVM switches automatically and transparently to the alternate path. The authorized service provider replaces the failed adapter and the system administrator restarts the operating system and applications. 108 Topologies for HP-UX