Hitachi Unified Storage VM, Product Overview Manual

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Hitachi Unified Storage VM Product Overview Guide
2–8
Hardware overview
Table 2-2 Drive Specifications
MP configuration
Minimum/maximum host I/O modules 2 min, 4 with drives, 8 with no
drives max
2
back-end I/O modules
0 or 2 / 4
3
Cache 2 / 8
Switches /CSW 2 / 4
Power requirements
(see Appendix A,
Specifications, in the
Hitachi Unified Storage
VM Block Module
Hardware User Guide
for
details)
Single phase storage system
components.
Single or three phase PDU input. 60Hz : 200V to 240V
50Hz : 200V to 240V
Acoustic level Operating, Controller Chassis 60dB (24ºC or less), 62dB (32ºC)
Operating, DBS / DBX 54dB (24ºC or less), 60dB (32ºC)
Standby, Controller Chassis 60dB (24ºC or less), 62dB (32ºC)
Standby, DBS / DBX 54dB
Notes:
1. When 300 GB is mounted
2. All FED configuration, no BEDs (diskless system)
3. Zero BEDs in a diskless configuration, two BEDs min if drives are installed
Drive Type Size (inches)
1
Drive Capacity Speed (RPM)
HDD (SAS)
n/a
3-1/2 3 TB 7,200
2-1/2 600 GB, 900 GB 10,000
SSD (Flash)
MLC SAS 2
2-1/2 200 GB, 400 GB
Flash Module (MLC) 5-1/4 1.6 TB n/a
Minimum Number of Drives
Four (two in upper half, two in lower half). Drives must be added four at a time to create RAID groups,
unless they are spare drives.
Maximum Number of Drives
Drive Type
(inches)
Drive Box Max per drive box Max Per system
HDD, 3-1/2 DBX (dense) 48 1,152
HDD, 2-1/2 DBS 24 1.152
HDD, 3-1/2 DBL 12 1.152
FMD, 5-1/4 DBF 12 96
SSD, 2-1/2
128
2
24 (DBS) or 48 (DBX)
128
3
Spare drives
4
64
Item Specifications