DATOptic RM12-S6.TB - Rackmount - Manual (Page 34)

143
WEB BROWSER-BASED CONFIGURATION
• Auto Activate Incomplete Raid
When some of the disk drives are removed in power off state
or boot up stage, the RAID set state will change to “Incomplete
State”. But if a user wants to automatically continue to work
while the 6Gb/s SATA RAID controller is powered on, the user
can set the “Auto Activate Incomplete Raid” option to enable.
The RAID state will change to “Degraded Mode” while it powers
on.
• Disk Write Cache Mode
User can set the “Disk Write Cache Mode” to Auto, Enabled, or
Disabled. “Enabled” increases speed, “Disabled” increases reli-
ability.
• Write Same For Initialization
Drives that support the Write Same feature (SCT) can write to
multiple drive sectors at once, improving initialization time. To
take advantage of this feature, all the drives in the unit must
support Write Same. User can set the “Enabled” or “Disabled”
for the controller initialization.
• Hot Plugged Disk For Rebuilding
It defines if the RAID array volume should start rebuilding or not
when detects a disk is inserted/re-inserted during online.
The options are: “Blank Disk Only”, “Always”, and “Disable”. The
default is “Blank Disk Only”.
“Blank Disk Only” - it will trigger the rebuilding if and only if the
inserted disk has not been in the RAID array before, which has
no RAID signature on it. So when a previously removed disk is
self re-inserted, it won’t trigger the degraded RAID array to re-
build, and so that the administrator has a chance to identify this
miss-behaving disk and replace it.
“Always” – it is what it was before. Whenever a disk is inserted/
re-inserted whether new or previously existed, it always triggers
a rebuilding for the Degraded RAID set/Volume.
“Disable” – it will not trigger rebuilding regardless what sort of
disk plugging in. When “Disable” and/or “Blank Disk Only” is se-
lected, the re-inserted/previously removed disk will be identified
as a disk in a separate RAID set with duplicated RAIDset#