Starting and target RAID levels for Virtual Disk Reconfiguration and Capacity Expansion
After you have created a virtual disk, the possibilities for reconfiguring the virtual disk depend on the controller, RAID level, and available physical disks.
Controller | Starting RAID Level | Target RAID Level | Comments |
---|---|---|---|
PERC H350 Mini Monolithic, PERC H350 Mini Mono Low Profile, PERC H355 Front/Adapter, PERC H755 Front, PERC H755 Adapter, PERC H750 Adapter, and PERC 755N | RAID 0 | RAID 1 | Add a single disk. |
RAID 0 | RAID 0, RAID 5 | Add at least two additional disks. | |
RAID 0 | RAID 6 | RAID 6 requires a minimum of four disks.
Reconfiguration from RAID 0 to RAID 6 requires at least three additional disks even when this exceeds the 4-disk minimum that is required by RAID 6. |
|
RAID 1 | RAID 0 | With or without adding additional disks | |
RAID 1 | RAID 5, RAID 6 | Add at least one additional disk.
RAID 6 requires a minimum of four disks. |
|
RAID 5 | RAID 0 | With or without adding additional disks | |
RAID 5 | RAID 5, RAID 6 | Add at least one additional disk.
RAID 6 requires a minimum of four disks. |
|
RAID 6 | RAID 0, RAID 5 | With or without adding additional disks | |
RAID 6 | RAID 6 | Add at least one additional disk. | |
RAID 10 | RAID 10 | With or Without adding additional disks | |
PERC S160 | RAID 0 | RAID 0 | With or without additional disks |
RAID 1 | RAID 1 | Without additional disks | |
RAID 5 | RAID 5 | With or without additional disks | |
RAID 10 | RAID 10 | Without additional disks |
NOTE: The order of the controllers displayed on Storage Management may differ with the order of the controllers displayed in the Human Interface (HII) and PERC Option ROM. The order of the controllers does not cause any limitation.
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NOTE: When creating virtual disks using software RAID controllers, the information that is related to the physical disks that are linked to the virtual disk is enumerated or displayed on Storage Management after a short delay. This delay in displaying the information does not cause any functional limitation. If you are creating partial virtual disks, it is recommended that you provide Storage Management adequate time between each partial virtual disk creation process.
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