Product specifications

Firmware Functionality Specifications
A-7
A.4 RAID Expansion:
On-line RAID expansion
Supported.
Capacity brought by array expansion is
immediately ready for Host I/Os when its
status changes from “EXPAND” to
“INITIALIZING.” Initialization task is then
completed in the background except when
the logical array is stated as
“INCOMPLETE” or “BAD;” e.g., has a failed
member right after creation.
Mode-1 RAID expansion -
add drive
Supported. Multiple drives can be added
concurrently.
Add Drive can even be performed in
degraded mode.
Mode-2 RAID expansion –
copy and replace drives
Supported. Replace members with drives of
larger capacity.
Expand capacity with no
extra drive bays required
Supported in Mode 2 RAID expansion,
which provides “Copy and Replace Drive”
function to replace drives with drives of
greater capacity. No need for hardware
upgrade, e.g., adding a new enclosure for
the extra drives.
Operating system support
for RAID expansion
No. No operating system driver required.
No software need to be installed for this
purpose.
A.5 S.M.A.R.T. Support:
Copy & replace drive
Supported. User can choose to clone a member
drive showing symptoms of defects before it fails.
Drive S.M.A.R.T.
support
Supported, with intelligent error handling
implementations.
User selectable modes
for S.M.A.R.T.
1. Detect only
2. Perpetual Clone: using a hot-spare to clone
the drive reporting SMART errors; the hot-
spare remains a clone drive
3. Clone + Replace: using a hot-spare to replace
the drive reporting SMART errors; the drive
reporting errors is pulled offline
A.6 Redundant Controller:
Active-active
redundant controller
Supported