Promise-technology VTrack M-Class M200i Manual do Utilizador Página 263

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Chapter 7: Technology Background
255
RAID 5 RAID 50 •*
RAID 10
RAID 0
RAID 1/1E RAID 50
RAID 10
RAID 5
RAID 0
RAID 0 RAID 50
RAID 10
RAID 5
RAID 1/1E
* Increases the existing redundancy
Important
The Target disk array may require more disk drives than the
Source disk array
If the Target disk array requires an EVEN number of disk
drives but the Source disk array has an ODD number, ADD a
disk drive as part of the migration process
You cannot reduce the number of disk drives in your disk
array, even if the Target disk array requires fewer disk drives
than the Source disk array
RAID 1 (mirroring) works with two drives only. Only a single-
drive RAID 0 disk array or a single-drive JBOD can migrate to
RAID 1. Other RAID Levels use too many drives to migrate
You cannot migrate a disk array when it is Critical or
performing activities such as Synchronizing, Rebuilding, and
PDM
From To
Increase Redundancy
Capacity Performance Add Lose
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