How to create new FS/VG/LV in suse linux

How to create new FS/VG/LV in suse linux
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pre-requisite :

1. take the  df -h;fdisk -l ;multipath -ll ,vgs ,pvs,lvs command output .
2.take the backup of /etc/fstab.


2. once the storage team allocate the LUN's . NOte down the LUN-ID provided by storage team .
   Suppose LUN-ID = AB0004lm0000000008n00876d00005e9e

 run the below command to detetct at server level.

#rescan-scsi-bus.sh

3. Validate that the New LUN has been detetcted .
    #ls -ltr /dev/mapper/  - check the latest(last) entry to cross-check
    #multipath -ll |grep "AB0004lm0000000008n00876d00005e9e"
    # ls -l /dev/disk/by-id/ |grep -i "AB0004lm0000000008n00876d00005e9e"

4.  Once you are able to find out the new LUN's , note down the logical name of it .



5. If you are need to create PV .

 # pvcreate /dev/mapper/mpathdi

6. Create the volume group
 #vgcreate  abhidata3vg /dev/mapper/mpathdi

7. Once done you need to create the LV .
#lvcreate -L 20G -n lvabhidata3 abhidata3vg

8. Here we are going to create xfs filesystem
   #mkfs.xfs /dev/mapper/abhidata3vg-lvabhidata3

9. create the directory on which you want to mount the new FS  "/oracle/SQ7/sapdata3 and mount the filesystem.


#mkdir /aks
#mount /dev/abhidata3vg/lvabhidata3 /aks

10. To make the changes permanent add the entry of this filesystem in /etc/fstab

  /dev/abhidata3vg/lvabhidata3    /aks xfs     rw,noatime,nodiratime,barrier=0  0 0

  below options normally we prefer for xfs filesystems .