B–2
Hitachi Simple Modular Storage 100 User’s Guide
Mechanical Specifications
The following table describes the mechanical specifications for the Hitachi
Simple Modular Storage.
•
Table B-1: Disk Drive
Parameter Specification
Height 1.02 inches (26.1 mm)
Width 4.0 inches (101.6 mm)
Depth 5.78 inches (147 mm)
Drive Capacity (GB) 142.63/287.62/491.27/737.49
Rotational Speed 142.63/287.62 G bytes: 15,000
491.27/737.49 G bytes: 7,200
Maximum Number of Mountable Drives 12 including two repair slots
Spare Disk 1
Table B-2: Host Interface
Parameter Specification
Interface Type 1 Gbps Ethernet
Maximum Data Transfer Speed to Host 100 Mbytes/Ethernet
Number of iSCSI data ports 1-controller array: 2
2-controller array: 4
Transferred Block Size 512
RAID Level 6
RAID Configuration 4D+2P, 6D+2P, 9D+2P
Flash Memory 16 Mbytes
L2 Cache Memory 512 kbytes
DDR2 SDRAM 512 Mbytes
Data Assurance Method Data Bus: Parity
Cache Memory: ECC (1 bit for correction,
2 bits for detection)
Disk drive: Data assurance code
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