HP D2D .HP D2D Backup System user guide (EH985-90907, March 2011) - Page 64

RAID controllers, Logical units, unit contains the data. These units always act as pairs.

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RAID controllers RAID Controllers: RAID Battery: This is the ID of the RAID controller. HP D2D4300 Series: There is an entry for the internal shelf and each expansion shelf that has been installed. Expansion shelves are identified by the slot number. Select a shelf to display information about its logical units. HP D2D4100 Series: There is only one in the current system. In normal operation, this shows green, OK. If a battery fails, please replace it as soon as possible. The status of the RAID and the RAID battery are also shown on the Summary page. See the HP StoreOnce Backup System Maintenance and Service Guide for more information about replacing the RAID battery. Logical units Each shelf consists of two logical units. The smaller unit contains configuration information; the larger unit contains the data. These units always act as pairs. The Erase button is only active if any RAID has failed and is not recoverable. The logical units must be erased from the bottom up (start with the highest Logical Unit number and work backwards). Use with care and only when advised to do so by HP Customer Support. Logical Unit ID: Status: RAID State: Shelf: Size: This is a unique ID for the logical unit. This is the status of the logical unit. This is the RAID state of the logical unit. The only time the RAID state may be different for pairs of logical units is when the RAID is rebuilding or initializing/optimizing. This identifies the RAID card and port to which the shelf is connected, if you have highlighted an external shelf in the RAID controller list. This is the size of the logical unit. 64 Status

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RAID controllers
This is the ID of the RAID controller.
HP D2D4300 Series: There is an entry for the internal shelf and each
expansion shelf that has been installed. Expansion shelves are identified by
the slot number. Select a shelf to display information about its logical units.
HP D2D4100 Series: There is only one in the current system.
RAID Controllers:
In normal operation, this shows green, OK. If a battery fails, please replace
it as soon as possible. The status of the RAID and the RAID battery are also
shown on the
Summary
page. See the
HP StoreOnce Backup System Main-
tenance and Service Guide
for more information about replacing the RAID
battery.
RAID Battery:
Logical units
Each shelf consists of two logical units. The smaller unit contains configuration information; the larger
unit contains the data. These units always act as pairs.
The
Erase
button is only active if any RAID has failed and is not recoverable. The logical units must
be erased from the bottom up (start with the highest Logical Unit number and work backwards). Use
with care and only when advised to do so by HP Customer Support.
This is a unique ID for the logical unit.
Logical Unit ID:
This is the status of the logical unit.
Status:
This is the RAID state of the logical unit. The only time the RAID state may
be different for pairs of logical units is when the RAID is rebuilding or initial-
izing/optimizing.
RAID State:
This identifies the RAID card and port to which the shelf is connected, if you
have highlighted an external shelf in the RAID controller list.
Shelf:
This is the size of the logical unit.
Size:
Status
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