Appendix B Firmware Functionality Specifications; Basic Raid Management - Compaq External RAID Controller & Subsystem Infortrend Operation Manual

Appendix Appendix
Appendix Appendix
B

Basic RAID Management:

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