Allnet ALL6501, Руководство пользователя

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RAID Levels
Level Description
JBOD The storage volume is a single HDD with no RAID support. JBOD requires
a minimum of 1 disk.
RAID 0 Provides data striping but no redundancy. Improves performance but not
data safety. RAID 0 requires a minimum of 2 disks.
RAID 1 Offers disk mirroring. Provides twice the read rate of single disks, but
same write rate. RAID 1 requires a minimum of 2 disks.
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
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.
RAID Check the boxes of the hard drives you wish to add to the storage
volume.
Spare If this is checked, current hard disk is designated to join 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.
Create RAID Press this button to configure a file system and create the RAID storage
volume.
Remove RAID Click to remove the RAID volume. All user data will be removed.
Cancel Press this button to exit without saving changes.
Creating a RAID
To create a RAID volume, follow the steps below:
1. On the RAID Configuration screen,
set the RAID storage space as JBOD ,
RAID 0 , or RAID 1 , — see Appendix
C: RAID Basics for a detailed
description of each.
2.
Tick the checkboxes of the hard disks
you wish to use to create a RAID.
3.
Specify a stripe size — 64K is the
default setting.
4. Press Create to build the RAID
storage volume.
WARNING
If the administrator improperly removes a hard disk that
should not be removed when RAID status is degraded, all data
will be lost.
NOTE
Building a RAID storage space may take times, depending on the
size of hard drives and RAID mode.
WARNING
Creating RAID destroys all data in the current RAID. The data is
unrecoverable.