To increase the GPFS mount point size we need at-least one shared storage free disk,
- Storage disks to needs to be share wherever the mount point has been mounted in this cluster Nodes.
- We can’t use available free space from the existing file-system.
- Create New NSD disks from the newly allocated storage disks.
- Assign created NSD disks into the remaining available cluster Nodes.
- Add the created NSD disks into the GPFS mount Point.
- Verify the Increased GPFS mount Point Size.
Step 1: Allocate new shared storage LUNs to all the cluster nodes.
Step 2: To change the disks attributes for all the available cluster Nodes.
Step 3: For NODE1 to Make a stanza file with the details of new hdisk4 , storage pools properties.
Step 4: To convert normal hdisk into GPFS NSD disk.
❗ Specify storage pools and pool properties
❗ Assign disk devices to storage pools
❗ Assign failure groups to disk devices
Step 5: To view the Updated stanza file after creating NSD.
Step 6: From that updated stanza file we have to remove ‘#’ entry line and verfy the updated NSD disk creation format.
Step 7: To Create one more stanza file with the details of NSD disks information and Nodes details.
Step 8: Assign nsd2 disk into both the Nodes. in my case i have two node GPFS cluster.
Step 9: To verify if the NSD disk successfully added to both the nodes or not.
Step 10: After adding the NSD disk into the cluster NODES we have to increase the GPFS mount point size.
Newly added disk it will show as like free disk.
Step 11: Create one more stanza file to increase the GPFS mount point size.
Step 12: To add the Free NSD disk into the GPFS File-system lv.