HP StorageWorks XP12000 Disk Array owner's guide (AE002-96029, October 2006)

Unit emergency power off switch

The UNIT EM ERGENCY POWER OFF switch is located on the back of the DKC cabinet.

For more information about this switch, see Emergency power off.

Service processor (SVP)

The Service Processor inside the controller performs these functions:

• Collects p erformance data on the system for diagnostic testing and analysis

• Provides your HP support representative with access to the system

• Hosts system management software

Your HP support representative uses the SVP to conﬁgure, m aintain, and upgrade the

system software and hardware. The SVP is not a customer-accessible component.

To protect your security, the SVP do es not have access to any user data stored on array

disks.

If y ou have extreme av ailability requirements, an optional second SVP is available.

Disk drives

The DKC must contain at least nine hard disk drives and can contain up to 128. For more

informat

ion about disk drives, see the following section about disk drives in the DKUs.

HP StorageWorks Continuous Track XP

HP Continuous Track XP is a program in the system that detects and reports prob lems

even before they are noticed by operators and users. HP Continuous Track XP “phones

home” to the HP Storage Technology Center (STC) , providing:

• P eriodic “well” checkups

This checkup records the health of the disk array on a day-to-day basis. Every

24 hours, HP Continuous Track XP calls STC (your HP support representative sets

the time of the call). When a successful connection is made, status information is

transferred from the disk array to STC. If any conﬁguration changes have been made,

conﬁguration information is also sent.

• Incidental “sick” calls

When an error o ccurs, a service information message (SIM) is generated, stored in

the disk array for use by your H P support representative, and reported to STC. For

more information, see Service information messages.

Notethatthe“phonehome”capabilitycanbeturned off, if desired. HP Continuous Track

XP still monitors the disk array, but does not automatically notify H P if a problem occurs.

Hardware