[CentOS] extend raid volume - new drive

dnk d.k.emaillists at gmail.com
Fri Apr 24 17:09:18 UTC 2009


Hi there, I have a system with the following:

# fdisk -l

Disk /dev/sda: 80.0 GB, 80000000000 bytes
255 heads, 63 sectors/track, 9726 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        9471    75971385   83  Linux
/dev/sda3            9472        9726     2048287+  82  Linux swap /  
Solaris

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1      121601   976760001   fd  Linux raid  
autodetect


Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sdd1   *           1      121601   976760001   fd  Linux raid  
autodetect

Disk /dev/md0: 1000.2 GB, 1000202174464 bytes
2 heads, 4 sectors/track, 244189984 cylinders
Units = cylinders of 8 * 512 = 4096 bytes

Disk /dev/md0 doesn't contain a valid partition table


Now I just added a new hard drive (sdc).

I was wondering how to go about (if possible) to add this drive to my  
existing partitions with LVM.

Now I never setup this system (Another person had), and if i am  
reading the above right, it appears as though they did not use LVM for  
the raid.

The system has the OS on a standalone drive, the home folder is on the  
two raided drives. I was hoping to extend my home folder to take  
advantage of my new drive.

Recommendations?

d





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