Hitachi NAS Platform 4000 Series - Fans

Figure 11 Hard disk drives status and activity status LEDs - models 4060, 4080,
and 4100
Item Description
1 Disk A status and activity LEDs
2 Disk B status and activity LEDs
Table 8 Hard disk activity and status LEDs
LEDs Meaning
Blue If this LED is on and blue, the disk is operating normally and no
pr
oblems have been detected. If the LED is ashing blue, it indicates
disk activity. If the LED is on, but not ashing, ther
e is currently no
disk activity.
Red If this LED is on immediately after installing a new hard disk, it
indicates that the RAID conguration for the server is being rebuilt.
The LED will turn o after the RAID conguration is restored. The
amount of time it takes for the RAID conguration to be rebuilt after a
new disk drive is installed depends on the amount of user and system
conguration data stored.
If this LED is on during the course of normal operation (not after
installing a new hard disk), either the disk has failed or the server’s
RAID conguration has been degraded.
Fans
The server features dual hot-swappable fan assemblies. The fans provide for front-to-
back airow to be consistent with other storage system components.
The server
’
s cooling airow enables the system to operate in an ambient temperature
range of 10°C to 35°C when mounted in a rack or cabinet with associated components
required to make up a storage system. The storage system administrator is responsible
for ensuring that the ambient temperature within the rack does not exceed the 35°C
operating limit.
The server continues to operate following the failure of a single fan and during the
temporary removal of a fan for replacement. Replace a failed fan as soon as possible.
Fans
Chapter 4: Hitachi NAS Platform server components
Hitachi NAS Platform and Hitachi Unied Storage Series 4000 Hardware Reference 41