HP StorageWorks XP24000/XP20000 Disk Array Owner Guide (AE131-96081, September 2010)

Figure 9 Battery de-staging and backup modes
.
When AC power is restored, the disk array powers on again automatically if the AUTO POWER-ON
jumper is set to ENABLE. If the jumper is set to DISABLE, the disk array must be manually powered
on again using the control panel PS ENABLE and PS ON/OFF switches. Before installation HP
representatives will help you determine the best battery mode and power-on mode for your configuration
and will configure the selected mode for you.
Operating specifications
This section provides some general specifications. For complete specifications, see the HP St o rageWorks
Disk Array Site Preparation Guide available on the HP storage manuals website:
http://www.hp.com/support/manuals
XP24000/XP20000 hardware specifications
The following tables provide selected hardware specifications for the XP24000/XP20000 Disk Arrays.
For additional specifications, see the HP StorageWorks Disk Array Site Preparation Guide.
Table 4 XP24000 selected hardware specifications
SpecificationFeature
Single-phase, 50 or 60 Hz, or 3-phasePower
One XP24000 DKC, zero to four XP24000 DKUsDKC/DKU
1152Maximum hard disk drives
40Maximum spare disk drives
287Maximum array groups/subsystem
Hardware description of the HP XP24000/XP20000 Disk Array26