topic Re: Expand Array in Disk Enclosures

Expand Array

Mecit — Tue, 28 Mar 2006 17:12:05 GMT

How to expand disk array by adding new disk to disk array on linux RHEL operating system?We can do this on windows by using diskpart command utility.For example;one disk size = 300 GB.. i have raid 5 with 3 disks of that total size is 600 GB (/dev/sda1) and then add one new disk (300 GB) to this array.i want to expand /dev/sda1 partition size to new size that is 900 GB.How can do this without lost data that is on disks..Thanks.

Re: Expand Array

Ivan Ferreira — Wed, 29 Mar 2006 10:57:42 GMT

I'm not sure if Linux can extend its partition table. I have not tested. If possible, you should use LVM, extend your disk, reboot, use pvresize (last time I tried won't worked yet this command).

So, I think that is better if you expand the array and create a new lun. Use this lun as you would use any other disk, if you use LVM, you can add this lun to your VG.

I will try to reproduce this scenario on my virtual pc and let you know.

Re: Expand Array

Nguyen Anh Tien — Thu, 30 Mar 2006 04:42:50 GMT

pls tell me what server, array you use? and connectiion diagram. It will help me to solve this