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Nondisruptive Service And Upgrades; Connectivity - HP StorageWorks XP20000/XP24000 - Disk Array Owner's Manual

Hp storageworks xp24000/xp20000 disk array owners guide (ae131-96072, december 2009)
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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 optional HP StorageWorks XP C-Track monitoring software 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

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.
8
Overview of the HP XP24000/XP20000 Disk Array
Track" on page 45.
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