Upgrading NFS packages

Use these steps on each protocol node one by one to upgrade IBM Storage Scale NFS packages.

Attention:

All protocols must also be upgraded to the newer code level along with base GPFS.
After you upgrade from an earlier version to the current version, it might be necessary to unmount and mount the file system on the NFS clients to ensure continued access.
Before upgrading from IBM Storage Scale 5.0.x to 5.1.x, remove the gpfs.nfs-ganesha-selinux package if present in the protocol node. If the gpfs.nfs-ganesha-selinux package is not removed, it might break the NFS Ganesha upgrade process.
Before upgrading from IBM Storage Scale 5.0.x to 5.1.x on the Ubuntu operating system, make sure that the upstream NFS Ganesha package is not installed or configured in the protocol nodes. If the NFS Ganesha package is installed or configured, then uninstall the package by using the apt purge nfs-ganesha command.

Suspend the node by issuing the following command.
```
mmces node suspend --stop
```
Note: Suspending nodes triggers IP address reassignment and client failover.
Upgrade NFS packages on the node by issuing one of the following commands, which is applicable for an operating system.
- For Red Hat Enterprise Linux® and SLES, issue the following command.
```
rpm -Uvh NFS_Package_Name1 NFS_Package_Name2 ... NFS_Package_NameN
```
- For Ubuntu, issue the following command.
```
apt-get install ./NFS_Package_Name1 ./NFS_Package_Name2 ... ./NFS_Package_NameN
```
  For a list of packages for the current IBM Storage Scale release, see Manually installing the IBM Storage Scale software packages on Linux nodes.
Resume the node by issuing the following command.
```
mmces node resume --start
```
For more information about viewing the health status of a node, and detailed information about the health status and potential corrective actions, see System health monitoring use cases and Events.

For more information about migrating from CNFS to CES NFS, see Migration of CNFS clusters to CES clusters.