Cluster File System Administration
Snapshots for Cluster File Systems
version 7 layout
104857600 sectors, 52428800 blocks of size 1024, log size 16384 blocks
unlimited inodes, largefiles not supported
52428800 data blocks, 52399152 free data blocks
1600 allocation units of 32768 blocks, 32768 data blocks
2.Mount the file system on all nodes (following previous examples, on system01 and system02):
#cfsmntadm add cfsdg vol1 /mnt1 all=cluster
#cfsmount /mnt1
The cfsmntadm command adds an entry to the cluster manager configuration, then the cfsmount command mounts the file system on all nodes.
3.Add the snapshot on a previously created volume (snapvol in this example) to the cluster manager configuration:
#cfsmntadm add snapshot cfsdg snapvol /mnt1 /mnt1snap \ system01=ro
NOTE | The snapshot of a cluster file system is accessible only on the node where it is |
| created; the snapshot file system itself cannot be cluster mounted. |
4.Mount the snapshot:
#cfsmount /mnt1snap
5.A snapped file system cannot be unmounted until all of its snapshots are unmounted. Unmount the snapshot before trying to unmount the snapped cluster file system:
#cfsumount /mnt1snap
38 | Chapter 3 |
