RAID Creation
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MD devices are created using the <code>Create</code> mode of <code>mdadm</code>. | MD devices are created using the <code>Create</code> mode of <code>mdadm</code>. | ||
− | You need to specify the raid device to create, the raid mode (raid0, raid1, raid5, raid6 etc) and the component devices. | + | You need to specify the raid device to create, the raid mode (raid0, raid1, raid10, raid5, raid6 etc) and the component devices. |
You can also configure many aspects of your array: | You can also configure many aspects of your array: |
Revision as of 17:30, 3 March 2008
MD devices are created using the Create
mode of mdadm
.
You need to specify the raid device to create, the raid mode (raid0, raid1, raid10, raid5, raid6 etc) and the component devices.
You can also configure many aspects of your array:
- device name
- name or label
- RAID-level
- superblock
- chunk size
- rounding
- layout
- bitmap
- write-mostly
- partitionable
One question that frequently comes up with linux raid is:
"Why does linux raid do 'resync' when I create a clean array? Can I skip that?"
The answer is usually "NO". For more details see Initial Array Creation