Dear CentOS-Community,
we have a server with four hard drives that are configured as raid10
(/dev/sda).
Now, /home and /root are almost full. Therefore, we decided to buy four
additional hard drives that should configured also as raid 10 (/dev/sdb).
I want to use LVM to extend disk space for root and home.
My (successful) test procedure in a virtual environment looks like this:
1. devide /dev/sdb into /dev/sdb1 for root and /dev/sdb2 for home using
parted
2. Convert disk to physical volume: pvcreate /dev/sdb1
3. add physical volume to volume group (called centos): vgextend centos
/dev/sdb1
4. Allocate physical volume to a logical volume:lvextend -l +100$FREE
/dev/centos/root
5. resize2fs /dev/centos/root or xfs_grows /dev/centos/root depending
on file system used
6. repeat steps 2-6 for /home and sdb2
The mentioned instruction I've got from this page:
https://askubuntu.com/questions/458476/adding-disks-with-lvm#459176
Now my question:
Is this procedure really safe or is something missing or are there some
steps
which I overlooked actually?
Kind Regards
Felix Kölzow
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