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MaxNAS Owner’s Manual
31
4.2.2 Expanding NAS volumes
To expand the network accessible space of a RAIDset to take over unused space, select the
desired RAIDSet and click
on the RAID information screen (see above, section 4.2.)
The RAID Configuration page will
appear. Select the “Expand” tab in the
tab bar (see illustration.)
The Expand
RAID Space screen will appear. Select
the new percentage of the resulting
volume to be used for network access.
Remaining space may be allocated for
iSCSI targets. Click
Apply
to complete the operation.
4.2.3 Migrating RAIDSet
The MaxNAS R8 allows RAIDsets to migrate on to unused disk modules as well as change the
RAID level to fully utilize resources or to afford user flexibility. Online RAID level/stripe size
migration can prove helpful during performance tuning activities as well as at the addition of
physical disks to the MaxNAS R8. For example, in a system using two drives in RAID level 1,
you could add capacity and retain fault tolerance by adding one drive. With the addition of third
disk, you have the option of adding this disk to your existing RAID logical drive by migrating
from RAID level 1 to 5. The result would be parity fault tolerance and double the available
capacity without taking the system offline. To migrate a RAID 0, RAID 1, or RAID 5 volume,
Select the desired RAIDSet and click
on the RAID information screen (see above, section
4.2.) The RAID Configuration page will appear. Select the “Migrate RAID” tab. A list of possible
RAID migration configurations will be listed. Check
the “available disk” checkboxes corresponding to the
disk(s) you wish to add, Select the desired migration
scheme and click
Apply
. Not all migration options
will be available depending on the current RAID
configuration.
Note: You can only migrate ‘up’ either in
capacity, RAID conguration or both. E.g.,
It is not possible to migrate from RAID 5 to
RAID 0, but it is possible to migrate from RAID 0
on two hard disks to RAID 5 on three hard disks.
3-Administering the MaxNAS R8