Product specifications

Infortrend
A-2
Maximum number of
partitions for each
logical drive
16 as default, up to 64 with a 1GB memory size
Maximum number of
logical volumes
8 as default, up to 16 with a 1GB or above
memory size
Maximum number of
LUNs Mappable
Default is 128, up to 1024 with a 1GB or above
memory size
Maximum number of
LUNs per host ID
Up to 32, user configurable
Maximum number of
Media Scan task
schedules
16
Concurrent I/O
Supported
Tag Command
Queuing (TCQ)
Supported
Native Command
Queuing (NCQ)
Supported
Dedicated spare drive
Supported, hereby defined as the spare drive
specifically assigned to a logical drive
Global spare drive
Supported, the spare drive that serves all logical
drives (as long as it is equal in size or larger than
logical drive members)
Global spare auto-
assign
Supported, applies to non-configured drive(s);
safeguards the array if a spare has been used in
the previous array rebuild and users forget to
configure a new drive as a spare.
Co-existing dedicated
and global spare
drives
Supported
Auto-rebuild onto
spare drive
Supported
Auto-scan of
replacement drive
upon manually
initiated rebuild
Supported
One-step rebuild onto
a replacement drive
Supported
Immediate logical
drive availability
Supported;
Logical arrays are immediately ready for Host
I/Os. Initialization task is completed in the
background except when the logical array is
stated as “INCOMPLETE” or “BAD;” e.g., has a
failed member right after the creation.
Auto-rebuild onto
failed drive
replacement
Supported. With no spare drive, the subsystem
will auto-scan the failed drive and starts rebuild
automatically once the failed drive has been
replaced.
Concurrent rebuild /
expansion
Multiple logical drives can proceed with a
Rebuild/Regenerating Parity, and/or
Expansion/Initialization/Add Drive operation at
the same time.