Upgrading S3 packages

Use these steps on each protocol node one by one to upgrade IBM Storage Scale S3 packages.

Attention:

All protocol nodes must also be upgraded to the newer code level along with base GPFS.
S3 users must run I/O workloads with an increased value for the variables AWS_MAX_ATTEMPTS and AWS_MAX_RETRY to sustain the high availability. Because CES IP movement might take time based on the active I/O from multiple protocols, if enabled in the cluster. Refer AWS CLI documentation for how to set these.

Suspend the node by issuing the following command.
```
mmces node suspend --stop
```
Note: Suspending nodes triggers IP address reassignment and client failover.
Upgrade S3 packages on the node by issuing one of the following commands, which is applicable for an operating system.
- For Red Hat Enterprise Linux®, issue the following command.
```
rpm -Uvh gpfs.mms3 noobaa-core 
```
Resume the node by issuing the following command.
```
mmces node resume --start
```