Asus DS300j G2 Series User Manual page 233

c D a l D
reatInG a ISk rray or oGIcal
Why can't I see all RAID Levels in RAID Level drop-down menu?
The selection of RAID Levels shown depends on number of physical drives available to the controller. For example,
if there are only two physical drives, then you cannot see RAID 10, which requires four physical drives or RAID 50
that requires at least six. See "RAID Levels" on page <?>.
Why can't I create more than one logical drive on my disk array?
If your logical drive takes up the entire capacity of the disk array, there is no room for another logical drive. Backup
your important data, then delete the existing logical drive and create multiple smaller logical drives on the disk ar-
ray. See "Deleting a Logical Drive" on page 98 and 139 and "Creating a Logical Drive Manually" on page 97.
D a D
ISk rray eGraDeD
According to ASUS Storage Management, my disk array is degraded. What am I supposed to do?
If the Auto Rebuild option is enabled and a hot spare drive is available, your disk array begins rebuilding automati-
cally. Also see "Disk Array Degraded / Logical Drive Critical" on page <?>
When an disk array becomes degraded, can I still access the data on it?
Yes, but reads and writes take longer while rebuilding is in progress.
D D a l D
eletInG a ISk rray or oGIcal
Why can't I select Delete Disk Array or Delete Logical Drive?
You must have Power or Super User Rights to delete a disk array or logical drive. See your Administrator about up-
grading your access rights, if necessary. Also see "Making User Settings" on page <?>.
Can I delete a Logical Drive without deleting the Disk Array?
Yes. See "Deleting a Logical Drive" on page 98 and 139.
r D a
ebuIlDInG a ISk rray
I replaced a failed physical drive with a used but known-good drive. The system does not rebuild to it.
Why not?
The replacement drive was previously used in a different disk array or logical drive. You must clear (erase) the Re-
serve Sector of the replacement disk drive before the system can rebuild to it. "Clearing a Stale or a PFA Condition"
on page 130.
m D a
IGratInG a ISk rray
When I try to migrate a disk array from one RAID level to another, why doesn't the controller let me do
it?
Most RAID levels have a minimum and maximum number of physical drives. Be sure you have the correct number of
drives available for the target disk array. See "RAID Levels" on page <?> and "RAID Level Migration" on page <?>.
I want to add two more drives to my RAID 1 disk array. Why won't the controller let me migrate it?
227
rIve
rIve
A RAID 1 disk array uses only two disk drives. In this case, you can add two physical drives, then convert to a RAID
10 disk array. Most RAID levels have a minimum and maximum number of disk drives. See "RAID Levels" on page
<?>.
m P PDm
eDIa atrol anD
Media Patrol and PDM are enabled on my system. But they never report anything.
This is a good sign. Media Patrol and PDM operate transparently until they find a problem on a physical drive.
DS300f G2 Series User Manual