Hitachi NAS Platform 4000 Series - Hard Disk Drives

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A battery pack may be stored outside of the server for up to one year befor
e it must
be charged and/or conditioned. After one year without being charged and possibly
conditioned, the battery capacity may be permanently reduced.
If you store battery packs for more than one year, contact your representative to nd
out about conditioning your battery packs.
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When preparing a server for shipment, if the NVRAM is still being back
ed up by
battery (indicated by the ashing NVRAM LED), the battery can be manually isolated
using the reset button. See
Reset button (RST) (on page 55) for the location of the
r
eset button.
When pr
eparing a server for shipment or if it will be powered down for any length of
time, it is important that the server has been shut down correctly before powering-
o. Otherwise, if the server is improperly shut down, the batteries supplying the
NVRAM will become fully discharged. This also occurs if the system is powered down
for too long without following the proper shutdown procedure.
Note: If the batteries become fully dischar
ged, or the system is to be
po
wered down for an extended period, see
Powering down the server for
shipment or storage (on page 84) . Contact customer support
for
information about r
echarging batteries.
To replace the NVRAM battery backup pack, see
Replacing the NVRAM backup battery
pack (on page 67) .
Hard disk drives
The server contains two har
d disks, which ar
e congured as a Linux SW RAID 1 pair, and
they store server or cluster-related data. These hard disks are not part of the customer-
usable data storage that is available to the server.
Hard disks are located behind the bezel on the left side of the chassis.
Note: Failed har
d disks ar
e hot-swappable, so a failed hard disk can be
replaced without shutting down the server. However, there are serious risks
in trying to swap a drive that is not failed.
Figure 10 Hard disk drives status and activity status LEDs - model 4040
Hard disk drives
Chapter 4: Hitachi NAS Platform server components
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 40