Raidon SL5650-4S-L4D, Руководство пользователя

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RAID 50 (striping over the member RAID 5). Allows two hard disks to fail or being unplugged, but the hard disks must in different array.
RAID 60
(striping over the member RAID 6). Allows four hard disks to fail or being unplugged, but each two hard disks must in different
array.
JBOD
The abbreviation of “Just a Bunch Of Disks”. No data protection. Data is damaged or inaccessible if any hard disk fails or is
unplugged.
5.2 Migrate and expand VG
To migrate RAID level, refer to steps below. If migrating VG to the original VG with the same RAID
level, the process will be seen as expansion.
1) Click and select“/ Volume config / Volume group”
2) Select VG to be migrated, click and select “ " button in RAID field.
3) Using pull down menu “ " to change RAID level. If there is not enough space on the hard
disk to support new RAID level, a dialog window will pop out, click and select “ " to
increase hard disk and then click and select “ " to go back to the configuration page.
If migrating to lower RAID level, for example, migrating from RAID 6 to RAID 0 and the system will
evaluate if doing it this way is safe and display the warning "Sure to migrate to a lower protection
array? ”
4) Confirm setting again, if everything is OK, click and select “ ".
5) The last confirm page will display detailed information for RAID. If everything is OK, click and select
“ " to migrate.
6) You can see the progress for migration in “Status 3” field and the system will display "M" and in “/
Volume config / User data volume”, status "M" and completion percentage "R%" will be displayed in
“Status 3” field.
Hint: To migrate or expand, the total capacity VG should be larger or equal to the original VG. Hard disks with the
same RAID level and same original VG aren't allowed to expand.
When configuring migration, if the user setting isn't accurate, the system will display a warning window,
below explains the meanings:
"Invalid VG ID": source VG error
"Degrade VG not allowed": source VG was degraded
"Initializing/rebuilding operation's going": the source VG is being initialized or rebuilt
"Migration operation's going": source VG is being migrated
"Invalid VG raidcell parameter": false structure. For example, the capacity of the new VG is smaller than the
capacity of the original VG.
"Invalid PD capacity": the minimum PD capacity of the new VG is smaller than the original VG's minimum
PD capacity.
Note: during data rebuild or UDV expansions, VG migration cannot be performed.
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Advanced Operation