topic Re: Raid on linux in Operating System - Linux

Raid on linux

cogaidolong — Fri, 21 Oct 2005 03:35:26 GMT

Hi
I use ML 110, os linux,2 non hot Hdd, non smart array.
Can i creating and install raid by software ?
what i can do ?
Thank .

Re: Raid on linux

Sergejs Svitnevs — Fri, 21 Oct 2005 05:54:02 GMT

You can, of course, create the software raid.

Check out the link about how to create RAID array:
http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html

Regards,
Sergejs

Re: Raid on linux

Ivan Ferreira — Fri, 21 Oct 2005 06:45:52 GMT

You can use RAID by software. Which linux distribution will you use?

The easiest way to do it is during the installation. See the installation guide for your distribution.

Basically, you need to configure partitions in the disks as "software raid", after that, you create the raid devices.

If you want to do after the installation is more complicated, but you still need to see the software-raid howto to know how to verify the status of the software raid devices.

Re: Raid on linux

Morcos — Sat, 22 Oct 2005 02:56:23 GMT

Hi,

1.First of all, run fdisk and change partition type from linux LVM to linux raid auto 0xfd.
2.Then create a file /etc/raidtab , use man raidtab for helping u about creating it.
3.run mkdraid /dev/md0
4.mke2fs -j -b 4096 -R stride=x /dev/md0, where (x= chunck size/blocksize in k, could be 16 ...)
5.add a line for it in /etc/fstab

HTH
Ziad

Re: Raid on linux

Morcos — Sat, 22 Oct 2005 03:07:49 GMT

Also to be sure from the construction of raid: cat /proc/mdstat

HTH

Ziad