User`s manual
failed disks. 
WARNING 
If the administrator improperly removes a hard disk that should not be 
removed when RAID status is Degraded, all data will be lost. 
RAID Settings 
Using RAID Settings, you can select stripe size, choose which disks are RAID 
disks or the Spare Disk, as well as enter a name for each disk. 
RAID Settings 
Item Description 
RAID  Check the boxes of the hard drives you wish to add to the 
storage volume. 
Disk No.  Number assigned to the installed hard disks. 
Capacity (MB)  Capacity of the installed hard disks. 
Model  Model number of the installed hard disks. 
Status  Status of the installed hard disks. 
Member  If this is checked, current hard disk is a part of a RAID volume. 
Spare  If this is checked, current hard disk is designated as a spare for 
a RAID volume. 
Stripe Size  This sets the stripe size to maximize performance of sequential 
files in a storage volume. Keep the 64K setting unless you 
require a special file storage layout in the storage volume. A 
larger stripe size is better for large files. 
Used Percentage  The percentage of the RAID volume that will be used to store 
data. 
Apply  Press this button to configure a file system and create the RAID 
storage volume. 
Remove  Click to remove the RAID volume. All user data, iSCSI, and 
Target USB data will be removed. 
Back  Press this button to exit without saving changes. 
Expand  Press this button to configure a file system and create the RAID 
storage volume. 
Migration  Press this button to migrate RAID level. 
Creating a RAID 
To create a RAID volume, follow the steps below: 
1.  On the RAID List screen, click New. 
2.  On the RAID Configuration screen, set the RAID storage space as JBOD, 
RAID 0, RAID 1, RAID 5, RAID 6, or RAID 10 — see Appendix C: 
RAID Basics for a detailed description of each. 
3.  Tick the checkboxes under the “member” heading of the hard disks you 
wish to use to create a RAID. 
4.  Specify a stripe size — 64K is the default setting. 
5.  Specify the percentage allocated for user data. The remaining space will 
be made available for target USB. 
6.  Press Apply to build the RAID storage volume. 
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