Item Specifications
Management Processor
Cores
Quantity 16 cores
MP configuration
Minimum/maximum
host I/O modules 2 min, 4 with drives, 8 with no
drives max
1
back-end I/O modules 0 or 2 / 43
Cache 2 / 8
Switches /CSW 2 / 4
Power requirements
(see Table A-4 HUS VM
electrical specifications,
single phase current on
page A-5 and Table A-5
HUS VM electrical
specifications, three
phase current on page
A-6 for details)
Single phase to storage system
components.
Single or three phase to 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
Table A-2 Drive Specifications
Drive Type
Size (inches)
1
Drive Capacity Speed (RPM)
HDD (SAS) 3-1/2 3 TB, 4 TB 7,200
2-1/2 600 GB, 900 GB, 1.2 TB 10,000
SSD
(MLC SAS) 2
2-1/2 200 GB and 400 GB n/
a
Flash Module (MLC) 5-1/4 1.6 TB, 3.2 TB n/a
Minimum Number of Drives
Four (two in upper half of drive tray, two in lower half of drive tray). 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 tray Max per drive tray Max Per system
HDD, 3-1/2 DBX (dense) 48 1,152
HDD, 2-1/2 DBS 24 1.152
Specifications
A-3
Hitachi Unified Storage VM Block Module Hardware User Guide
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