WEB BROWSER-BASED CONFIGURATION
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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# and
with all the rest of RAID members missing.
• Disk Capacity Truncation Mode
RAID storage uses drive truncation so that drives from differing
vendors are more likely to be able to be used as spares for each
other. Drive truncation slightly decreases the usable capacity of
a drive that is used in redundant units. The controller provides
three truncation modes in the system configuration: “
Multiples
Of 10G”
, “
Multiples Of 1G”
, and
“Disabled”
.
Multiples Of 10G:
If you have 120 GB drives from different
vendors; chances are that the capacity varies slightly. For ex-
ample, one drive might be 123.5 GB, and the other 120 GB.
Multiples Of 10G truncates the number under tens. This makes
same capacity for both of these drives so that one could replace
the other.
Multiples Of 1G:
If you have 123 GB drives from different ven-
dors; chances are that the capacity varies slightly. For example,
one drive might be 123.5 GB, and the other 123.4 GB. Multiples
Of 1G truncates the fractional part. This makes capacity for both
of these drives so that one could replace the other.
Disabled:
It does not truncate the capacity.
• Smart Option For HDD
This option is used to increase the reliability of SSDs/HDDs by
automatically copying data from a drive with potential to fail to
a designated hot spare or newly inserted drive. The options are:
“Failed The Drive”, “Failed The Drive If Hot Sapre Exist”, and
