Linux/LVM adding a NAS partition for backups
1. Install isci tools
yum install iscsi-initiator-utils
2. Configure iscsi
vi /etc/iscsi/iscsid.conf
node.session.auth.username = My_ISCSI_USR_NAME node.session.auth.password = MyPassword discovery.sendtargets.auth.username = My_ISCSI_USR_NAME discovery.sendtargets.auth.password = MyPassword
3. Start iscsi
service iscsi start
4. Set iscsi to start on boot
chkconfig iscsi on
5. Discover targets using ip address of the storage
iscsiadm -m discovery -t sendtargets -p 192.168.1.5
6. Retart iscsi
service iscsi restart
7. Nas should be visible with fdisk
fdisk -l
8. Install parted if not present
yum install parted
9. Run parted on NAS drive where /dev/xxx has been identified as output of fdisk -l above
parted /dev/xxx
10. In parted check existing partitions and add new lvm partition
unit % print mkpart primary start end print set n lvm on (where n is the partition number) print quit
11. Check name of lvm partition /dev/xxxn (where n is a number)
fdisk -l
12. Create a lvm physical volume out of the partition (CAREFUL, do not do this on the disk /dev/xxx but on the partition /dev/xxxn)
pvcreate /dev/xxxn
13. Create a new volume group for backups
vgcreate VolGroupBackup /dev/xxxn
14. Create a new logical volume with all the unallocated volume group space
lvcreate -l +100%FREE -n LogVolBackup1 VolGroupBackup
15. Make an ext4 file system on the logical volume
mkfs.ext4 /dev/VolGroupBackup1/LogVolBackup1
16. Create the mount point e.g. /backup
mkdir /backup
17. Add entry to /etc/fstab
vi /etc/fstab
/dev/mapper/VolGroupBackup-LogVolBackup1 /backup ext4 defaults 1 2
19. Mount file system
mount /backup