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Firmware Functionality Specifications
B-1
Firmware Functionality
Specifications
Basic RAID Management:
Specification Feature
RAID Levels
0, 1(0+1), 3, 5, 10, 30, and 50 (Multi-level RAID with
the logical volume implementation)
Maximum Number of
logical drives
64 or 128 through OEM IAPPEND utility
RAID level dependency to
each logical drive
Independent. Logical drive configured in different
RAID levels can co-exist in a logical volume and in a
RAID system
Maximum number of drives
for each logical drive
128
Configurable stripe size
4KB to 256KB per logical drive
Configurable write policy
Write-back or write-through per logical drive
Logical drive identification
Unique, controller randomly generated logical drive ID;
Logical drive name user-configurable
Maximum number of
partitions for each logical
drive
128, through OEM “iappend.exe” program
Maximum number of
logical drives in a logical
volume
128
Maximum number of
logical volumes
32
Maximum number of LUNs
Mappable
Up to 1024
Maximum number of LUNs
per Host ID
Up to 32, user configurable
Concurrent I/O
Supported
Tag Command Queuing
Supported
Dedicated Spare Drive
Supported, hereby defined as the spare drive
specifically assigned to a logical drive
Global Spare Drive
Supported, the spare drive serving all logical drives
Global Spare Auto-Assign
Supported, applies to non-configured drives
Co-existing Dedicated and
Global Spare Drives
Supported
Auto-rebuild onto spare
drive
Supported
Appendix
AppendixAppendix
Appendix
B