Hi,

I have just started my career as an oracle dba, know only basics of linux. Please guide me on the below..


I have created a server with 500G from a storage device and allocated 490G to "/" mountpoint, now i want to add 30G additionally to the "/" mount point. I have added 30G space to the server , but it got created seperately, now i want to add this 30G to the "/" mount point. please guide how to add the space to the "/" mount point.. Please find the details below..

[root@appsclone ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
488G 457G 5.4G 99% /
/dev/xvda1 99M 23M 71M 25% /boot
tmpfs 2.5G 0 2.5G 0% /dev/shm


i have added additionally created 30G space to the server and it is not added to the "/" mount point.. Please find the details below.

[root@appsclone ~]# fdisk -l

Disk /dev/xvdd: 3500 MB, 3500640256 bytes
255 heads, 63 sectors/track, 425 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

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

Disk /dev/xvda: 547.6 GB, 547608330240 bytes
255 heads, 63 sectors/track, 66576 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/xvda1 * 1 13 104391 83 Linux
/dev/xvda2 14 66576 534667297+ 8e Linux LVM

Disk /dev/xvdb: 32.2 GB, 32212254720 bytes
255 heads, 63 sectors/track, 3916 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

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

Now i want to add the 30G to the "/" mount point..

Regards
Rajesh Thalapaneni

Hi,

Can anyone Please guide me as i am running out of time..


Regards
Rajesh Thalapaneni

The basic steps are:

1. Partition the new drive, creating a single partition /dev/xvdb1 that uses the whole disk. Make it type 83 (Linux LVM).
2. Run "pvcreate /dev/xvdb1" to set up that partition as a physical LVM volume.
3. Run "vgextend VolGroup00 /dev/xvdb1" to add that volume to the existing VolGoup00.
4. Run "lvextend --extents +100%FREE /dev/VolGroup00/LogVol00" to add the new free space to LogVol00.
5. Run "resize2fs /dev/mapper/VolGroup00-LogVol00" to expand the file system.

Depending on the filesystem type and kernel version, that last step might have to be done from a rescue disk with the filesystem unmounted. See the manpage for resize2fs for details.

The pvcreate command given assumes that the existing volume group was created with default parameters, which appears likely.

It is not strictly necessary to partition the new drive. Using an entire, unpartitioned drive as an LVM physical volume is allowed, but having a mix of partitioned and unpartitioned drives in the system is likely to cause confusion in the future.

As above
I'm fairly sure I've seen that (always partition) advice as best practice somewhere.
http://tldp.org/HOWTO/LVM-HOWTO/

That fix will help for a while, but if I were you I'd be urgently looking at why your disk filled up. It sounds like you may be in the same position again soon ...