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

NOTE:
Although access to data is not compromised, the failure of a key component can cause a temporary
reduction in disk array performance.
Nondisruptive service and upgrades
Without disrupting normal disk array operations (if alternate pathing is used), an HP support
representative can:
• Remove, service, repair, or replace hardware subassemblies
• Use the built-in service processor (SVP) to upgrade microcode
• Perform remote error monitoring, diagnosis, and maintenance
Alternate paths can be established using host failover software, alternate Fibre Channel paths, or
both.
CAUTION:
The disk array has no user-serviceable components. The SVP does not include a keyboard or monitor
and is not a customer-accessible component. Only an HP support representative should open the
cabinets.
The HP StorageWorks XP C-Track monitoring software and HP Insight Remote Support Advanced
product detects problems and automatically reports them to the HP Storage Technology Center (STC).
An HP support representative can then verify the problem and perform the appropriate remote
maintenance activity with no interruption to applications or hosts. For more information about C-Track,
see “HP StorageWorks XP Continuous Track” on page 43. For more information about HP Insight
Remote Support Advanced, see “HP Insight Remote Support Advanced” on page 43
Connectivity
The system can be configured to provide the following types of host connections:
• Fibre Channel: 8 or 16 ports per adapter pair, up to 4 Gbps, SW or LW
• ESCON: 8 ports per adapter pair, up to 17 MB
• FICON: 8 ports per adapter pair, up to 4 Gbps, SW or LW
Figure 1 shows a simple storage area network (SAN) containing an XP24000/XP20000 disk arrays.
Overview of the HP XP24000/XP20000 Disk Array8