Internal logic specifications (CBL)
Item
Specification
Control memory
Flash memory: 32 MB
L3 cache memory: 4 MB
SDRAM: 1 GB
Data assurance method
Data bus: Parity
Cache memory: ECC (1 bit correction, 2 bit
detection)
Drive: Data assurance code
Cache specifications
Item
Specification
Capacity (GB per controller)
512 GB
Control method
Read LRU/Write after
Battery backup
Provided
Backup duration
*
Unrestricted (Saving to a nonvolatile
memory)
*
Non-volatile data in the cache memory is protected against sudden power failure. The
backup operation writes data into a cache, even if a power interruption occurs, and
transferred to the cache flash memory.
Insulation performance
Item
Specification
Insulation withstand voltage
AC 1,500 V (100mA, 1min)
Insulation resistance
DC 500 V, 10 MΩ or more
Electrical specifications
The electrical input power specifications for the storage systems are described in the
following table.
Electrical specifications
Appendix B: System specifications
Hitachi Virtual Storage Platform F700 Hardware Reference Guide
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