- Managing and Maintaining HA Lustre file systems

# Managing and Maintaining HA Lustre file systems

Contents

Warning: After you have created a Lustre file system using Intel® Manager for Lustre* software, you should not make any configuration changes outside of Intel® Manager for Lustre* software, to file system servers, their respective targets, or network connectivity. Doing so will likely defeat the ability of Intel® Manager for Lustre* software to monitor or manage the file system, and will make all or portions of the file system unavailable to clients.

Before performing any upgrades or maintenance on a primary HA server, all file system targets attached to that server must be manually failed over to the secondary server, using the Intel® for Manager Lustre* software. DO NOT independently shut the server down.

In addition to the links below, see Advanced topics.

• | Increase a file system's storage capacity

• | Add an object storage target to a managed file system

• | Start, stop, or remove a file system

• | Start or stop an MGT, MDT, or OST

• | Remove an OST from the file system

• | Perform a single target failover from primary to secondary server

• | Perform a single target failback from secondary to primary server

• | Failover all targets from a primary to a secondary server

• | Handling network address changes (updating NIDs)

• | Reboot, power-off, or remove a server

• | Reconfiguring Corosync and Pacemaker for a server

• | Reconfiguring NIDs for a server

• | Decommission a server for an MGT, MDT, or OST