Hitachi g800 - Battery Specifications; RAID Specifications

State Controller FMD
Operati
ng
60 dB (Environmental temperature
32°C or less)
1
60 dB (Environmental temperature 32°C or
less)
1
,
2
,
3
(When accessing the dense intermix drive tray,
do not work for long times at the rear of the
rack.)
Non-
operati
ng
55 dB (Environmental temperature 32°C or less)
1
,
2
,
3
,
4
55 dB
Notes:
1. The system's internal temperature controls the rotating speed of the fan module. Therefore,
this standard value might be exceeded if the maximum load continues under high-
temperature environment or if a failure occurs in the system.
2. Sound pressure level (LA) changes from 66 dB or 75 dB, according to the ambient
temperature, drive configuration, and operating status. Maximum volume can reach 79 dB
during maintenance procedure for a failed ENC or power supply.
3. Acoustic power level (LwA) measured by the ISO 7779 standard is 7.2 B. This value changes
from 7.2 B to 8.1 B, according to the ambient temperature, drive configuration, and operating
status.
Battery specifications
The following table shows the lifetime expectancy of the batteries installed in
the storage system.
Storage system intake temperature
CBLH
Up to 75.2º F (24º C)
5 years
Up to 86º F (30º C)
5 years
Up to 93.2º (34º C)
4 years
Up to 104º (40º C)
3 years
RAID specifications
Item Controller
SFF, LFF, dense
intermix drive trays
(range for setup)
RAID level N/A SAS, SAS 7.2 krpm,
flash drives mounted:
0, 1, 5, 6, 1+0 (DBW
supports SAS 7.2k
drives)
RAID configuration
(unit of addition)
RAID 1 N/A 2D+2D, 4D+4D
RAID 5 N/A 3D+1P, 4D+1P, 6D+1P,
7D+1P
118 Storage system specifications
Hitachi Virtual Storage Platform G800 Hardware Reference Guide