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System specifications
The following table lists the system specifications of the HUS VM storage
system.
Table A-1: HUS VM system specifications
Item
Specifications
System
Maximum Storage Capacity
3,383TB (3TB-SAS HDD used)
Number of Disk Drives
Min: 4 (disk-in model)
0 (diskless model)
Max: 1,152
Maximum Number of Flash Drives
128 *1
Maximum Number of Spare Drives
64
Maximum Number of LDEVs / volumes 16,384
Supported RAID Levels
RAID1, RAID 5, RAID 6
RAID Group
Configuration
RAID1: 2D+2D, 4D+4D
RAID5: 3D+1P, 7D+1P
RAID6: 6D+2P,14D+2P
Internal Path
Architecture:
Hierarchical Star Net
Maximum Bandwidth:
Cache Path = 128 GB/s
Control Path = 64 GB/s
Back-end Path
SAS 6G: 32 (2WL*6)
Cache memory capacity
32 GB, 64 GB, 96 GB, 128 GB
Cache flash memory capacity
160 GB
Number of ports per
installation unit
FC 2/4/8 GB
80 (96 *1)/16,8
FICON 2/4/8 GB
80/16
Device I/F
Controller chassis-drive chassis
Interface
SAS/Dual Port
Data transfer rate
Max. 6 GBps
Maximum number of HDD per SAS I/F
144
Number of DKB PCB
4
Open-systems
2/4/8 GBps Fibre Shortwave:
8UFC/16UFC
Data Transfer Rate (MB/s, Fibre
Channel)
200/400/800
Memory
Channel I/F
Supported drives
See Table A-2: Drive Specifications on page A-3.
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
A–2
Specifications
Hitachi Unified Storage VM Block Module Hardware User Guide