19
RM16_EX8
User
Guide
v1.0
‐
DATOptic.com
Note:
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Once the “Expand Raid Set” process has started, user can not stop it. The process must
be completed
If a disk drive fails during raid set expansion and a hot spare is available, an auto rebuild
operation will occur after the RAID set expansion completes.
To activate the incomplete the RAID set, click on the “Activate Raid Set” link. A “Select The
RAID SET To Activate” screen is displayed showing all RAID sets existing on the current
controller.
Click the RAID set number to activate in the select column. Click on the “Submit” button on
the screen to activate the RAID set that had a disk removed (or failed) in the power off
state. The RM16_EX8 raid engine will continue to work in degraded mode.
Create Hot Spare
When you choose the “Create Hot Spare” option in the “Raid Set Functions”, all unused
physical devices connected to the current controller appear. Select the target disk by
clicking on the appropriate check box.
Click the “Confirm The Operation” check box and click the “Submit” button in the screen to
create the hot spares. The “Create Hot Spare” option gives you the ability to define a global
hot spare.
Delete Hot Spare
Select the target Hot Spare disk to be deleted by clicking on the appropriate check box.
Click the “Confirm The Operation” check box and click the “Submit
”
button on the screen to
delete the hot spares.
Rescue Raid Set
When the system is powered off in the RAID set update/creation period, it possibly could
disappear due to this abnormal condition.
The “RESCUE” function can recover the missing RAID set information. The RAID controller
uses the time as the RAID set signature. The RAID set may have different time after the
RAID set is recovered. The “SIGANT” function can regenerate the signature for the
RAID set.
Offline Raid Set
This function is for customer being able to un-mount and remount a multi-disk volume. All
HDD of the selected RAID set will be put into offline state, spun down and fault LED in fast
blinking mode. User can remove those HDDs and insert new HDDS on those empty slots
without needing power down the controller.
Volume Set Functions
A volume set is seen by the host system as a single logical device. It is organized in a RAID
level with one or more physical disks. RAID level refers to the level of data performance
and protection of a volume set. A volume set capacity can consume all or a portion of the
disk capacity available in a RAID set. Multiple volume sets can exist on a group of disks in a
RAID set. Additional volume sets created in a specified RAID set will reside on all the
physical disks in the RAID set. Thus each volume set on the RAID set will have its data
spread evenly across all the disks in the RAID set.
