Hitachi G200 - Page 73

RAID specifications
D: Data drive, P: Parity drive.
Although the storage system with a configuration of RAID 1, RAID 5, or RAID 6 provides data
reliability enhanced by redundancy, there is a chance that user data could be lost due to an
unexpected host, storage system hardware, or software failure. Therefore, users are requested to
back up all data.
Item
Drive tray
RAID Level SAS, SAS 7.2k, flash drives mounted
RAID 1 2D+2D, 4D+4D
RAID 5 3D+1P, 4D+1P, 6D+1P, 7D+1P
RAID 6 6D+2P, 12D+2P, 14D+2P
Item Specification
Maximum number of parity groups 88
Maximum volume size 3 TB (or 4 TB when using the LDEVs of other
storage systems)
Maximum volumes/host groups and iSCSI
targets
2,048
Maximum volumes/parity groups 2,048
Internal logic specifications
Item
Component Specifications
Shared memory Flash memory 32 MB
L3 cache memory 4 MB
SDRAM 1 GB
Data assurance method Data bus Parity
Cache memory ECC (1 bit for correction, 2 bits
for detection)
Drive Data assurance code
Physical specifications
Item
Component Specifications
Start-up time (min)
1
Controller
Standard: 5 to 8
Drive trays
Standard: 5 to 8
Chassis size
Controller
WxDxH: 19 x 32 x 3.5 inches
(483 x 813 x 88 mm)
SFF drive tray
WxDxH: 19 x 22.2 x 3.5 inches
(483 x 565 x 88.2 mm)
Mechanical specifications for VSP G200 73
Hitachi Virtual Storage Platform G200 Hardware Reference Guide