Difference between revisions of "Mdadm"
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| − | mdadm is a tool to create and manage software RAID. | + | mdadm is a tool to create and manage software RAID. It allows you to |
| + | * '''create''' a (new) software raid array. Think of two USB hard drives that you just bought and that you want to use in a RAID 1 configuration. | ||
| + | * '''assemble''' an (existing) array. Think of two USB hard drives that you have in your shelve and that you have already made to a RAID array using the ''create'' command. When you re-attach them to your computer, you need to tell the computer how the disks belong together (RAID 0 or RAID 1 for example). That is what the assemble command is for. | ||
| + | |||
| + | = Create = | ||
mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdh /dev/sdi | mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdh /dev/sdi | ||
Revision as of 06:09, 14 May 2011
mdadm is a tool to create and manage software RAID. It allows you to
- create a (new) software raid array. Think of two USB hard drives that you just bought and that you want to use in a RAID 1 configuration.
- assemble an (existing) array. Think of two USB hard drives that you have in your shelve and that you have already made to a RAID array using the create command. When you re-attach them to your computer, you need to tell the computer how the disks belong together (RAID 0 or RAID 1 for example). That is what the assemble command is for.
Create
mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdh /dev/sdi
See also
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