HP StoreOnce D2D4324 HP D2D Gen2E Backup Systems Maintenance and Service Guide - Page 17

HP D2D2502/4, Replacing the battery/flash capacitor module, Flash capacitor module location

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Figure 9 Example HP D2D4312 Storage-RAID page showing battery failure HP D2D2502/4 The status of the battery is reported on the Summary and Status-RAID pages of the Web Management Interface. Figure 10 Summary page showing a failed RAID battery Figure 11 RAID page showing a failed RAID battery (HP D2D2502/2504) Replacing the battery/flash capacitor module Flash capacitor module location There is one FBWC (flash backed write cache) module for each Smart Array Controller. Each FBWC has a capacitor pack to ensure cache contents are maintained after a loss of power. Each Smart Array RAID controller has an integral capacitor pack, whilst the P410i controller's capacitor pack is located in the holder in the centre of the HP D2D4312 Backup System. Each FBWC module has two single-color LEDs (green and amber). The LEDs are duplicated on the reverse side of the cache module to facilitate status viewing. See the HP Smart Array Controllers for HP ProLiant Servers User Guide for more information. Replacing the battery/flash capacitor module 17

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Figure 9 Example HP D2D4312 Storage—RAID page showing battery failure
HP D2D2502/4
The status of the battery is reported on the Summary and Status-RAID pages of the Web Management
Interface.
Figure 10 Summary page showing a failed RAID battery
Figure 11 RAID page showing a failed RAID battery (HP D2D2502/2504)
Replacing the battery/flash capacitor module
Flash capacitor module location
There is one FBWC (flash backed write cache) module for each Smart Array Controller. Each
FBWC has a capacitor pack to ensure cache contents are maintained after a loss of power. Each
Smart Array RAID controller has an integral capacitor pack, whilst the P410i controller’s capacitor
pack is located in the holder in the centre of the HP D2D4312 Backup System. Each FBWC module
has two single-color LEDs (green and amber). The LEDs are duplicated on the reverse side of the
cache module to facilitate status viewing. See the
HP Smart Array Controllers for HP ProLiant Servers
User Guide
for more information.
Replacing the battery/flash capacitor module
17