Uninterruptible Power Supply (Ups); Ups Features; Ups Limitations - HP StorageWorks XP1024 Manual

Uninterruptible Power Supply (UPS)

Caution

UPS features

UPS limitations

Preparing for installation
This uninterruptible power system (UPS) reference is for a product UPS
situation. If you are planning or already have a site wide UPS,
Hewlett-Packard recommends against a product-specific UPS powered by
a site-wide UPS for the XP1024.
Most HP Disk Array XP1024 units are installed in data centers where a
UPS strategy is already in place. However, if you are making your first
large disk array purchase, you may need a separate UPS solution. HP
references the Silcon DP300 series UPS solution, a product of American
Power Conversion Corp (APC), manufacturers of uninterruptible power
systems.
The APC UPS, Silcon DP300 series, provides the following feature set:
• Protection against short line transients
• Continued availability during short duration power failures (a
minimum of 30 minutes for a fully-configured system)
• Stable AC output voltage
• LCD display unit with ability to display key AC input/output
parameters, alarm log, events log and programming functions
• Communications interface option for communicating a remote UPS
shutdown through the serial port connection
While the UPS provides uninterrupted power to the XP array in the event of
a power failure, once the battery runtime is exceeded, it shuts down,
resulting in a loss of AC power to the array. The UPS does have the ability
to communicate an oncoming shutdown to the host via the Silcon Triple
Chassis. The host can then pass this message in-band to the XP array using
the "xppf" program.
67