SAS Disk Enclosures With a Rack-Mounted UPS
In this supported configuration, only SAS Disk Enclosures are protected by the rack-mounted
UPS. The rack(s) with SAS Disk Enclosures and/or Storage CLIMs are supported by one or more
rack-mounted UPS.
shows an example of this supported configuration in a NS7 system with the left PDUs
connected to the rack-mounted UPS and the right PDUs connected to the utility power. The
rack-mounted UPS is connected to the utility power.
Figure 22 SAS Disk Enclosures With a Rack-Mounted UPS
When the utility power fails, the NS7 system powers off without an OSM-initiated controlled
shutdown of the I/O operations and processors. Only the products in the rack with the
rack-mounted UPS remain powered on. All completed disk write transactions’ data are written
to the disk drive media or the disk drive write cache. The rack-mounted UPS provides the extended
time for the disk drives to transfer the data from their write cache to the media. The rack-mounted
UPS provides extended time for the disk drives to transfer the data from their write cache to the
media preventing loss of data.
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UPS and Data Center Power Configurations
Содержание Integrity NonStop X NS7
Страница 8: ...Figure 1 Example NS7 System Configurations 42U and 36U 8 HPE Integrity NonStop X NS7 Systems ...
Страница 39: ...Figure 14 Example of Bottom AC Power Feed in a Rack Without UPS AC Power Feeds in the Rack 39 ...
Страница 40: ...Figure 15 Example of Top AC Power Feed in a Rack Without UPS 40 NS7 System Installation Specifications ...
Страница 41: ...Figure 16 Example of Top AC Power Feed in a Rack With Single Phase UPS AC Power Feeds in the Rack 41 ...
Страница 43: ...Figure 18 Example of Top AC Power Feed in a Rack With Three Phase UPS AC Power Feeds in the Rack 43 ...
Страница 62: ...62 HPE Integrity NonStop X NS7 CG X2 System ...