Product specifications

Firmware Functionality Specifications
A-1
Firmware Functionality
Specifications
A.1 Basic RAID Management:
Specification Feature
RAID levels
0, 1(0+1), 3, 5, 6, 10, 30, 50, 60, JBOD and
NRAID.
Levels 10, 30, 50, and 60 are the multi-level
RAID with the logical volume implementations;
logical volumes consist of logical drives of
different RAID levels that are striped together.
Maximum number of
logical drives
16 as default, up to 32 with a 1GB or above
memory size
Maximum logical drive
capacity
64TB – when optimization mode is set to
Sequential
16TB – when optimization mode is set to
Random
RAID level
dependency to each
logical drive
Independent. Logical drives configured in
different RAID levels can co-exist in a logical
volume and within a RAID subsystem
Maximum number of
logical drive members
128 - 512MB memory size
112 - 256MB memory size
Configurable stripe
size
4KB, 16KB, 32KB, 64KB, 128KB, 256KB, 512KB,
or 1024KB per logical drive
 128KB is the default for earlier firmware with
optimization for Sequential I/Os
 32KB is the default for earlier firmware with
optimization for Random I/Os
Configurable Write
Policy
(write policy per array)
Write-Back or Write-Through per logical drive.
This policy can be modified later.
Logical drive
identification
Unique, controller randomly generated logical
drive ID;
Logical drive name user-configurable for ease of
identification in a multiple arrays configuration
Appendix
A