Adding Additional Disks RHEL 6
Ever wondered how to add an additional disk to RHEL 5/6 and create a new LVM(Logical Volume Manager). In this post I will try to show how to do just that.
This is assuming a second disk was added (/dev/sdb) to the system. If the disk is different (dev/sdc…) just make the changes to the command.
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# fdisk /dev/sdb |
Create the Physical Volume
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# pvcreate /dev/sdb Physical volume "/dev/sdb" successfully created |
Create the volume group. We will call it vgapp.
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# vgcreate vgapp /dev/sdb Volume group "vgapp" successfully created |
Verify it created.
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#vgs VG #PV #LV #SN Attr VSize VFree vg00 1 6 0 wz--n- 13.91G 4.72G vgapp 1 0 0 wz--n- 10.00G 10.00G |
Create the logical volume, staying with app as the name we’ll call it lvapp.
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# lvcreate -n lvapp -L+10G /dev/vgapp Logical volume "lvapp" created |
Now lets format the logical volume as ext4.
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# mkfs.ext4 /dev/vgapp/lvapp |
Verify it.
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# lvs LV VG Attr LSize Origin Snap% Move Log Copy% Convert lvapp vgapp -wi-a- 10.00G |
Make a directory for the mount
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# cd / | mkdir app |
Add the new filesystem to /etc/fstab
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/dev/vgapp/lvapp /app ext4 noatime 1 2 |
Mount it
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# mount /app |
All done and ready for use!
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