(c) Copyright by IBM Corporation and other(s) 1990, 2016. All Rights Reserved. [root@ltfseecachesrv ~]# systemctl stop hsm [root@ltfseecachesrv ~]# mmumount all -a Wed Mar 22 13:31:44 MST 2017: mmumount: Unmounting file systems ... [root@ltfseecachesrv ~]# mmshutdown -a Wed Mar 22 13:31:56 MST 2017: mmshutdown: Starting force unmount of GPFS file  systems Wed Mar 22 13:32:01 MST 2017: mmshutdown: Shutting down GPFS daemons ltfseecachesrv.tuc.stglabs.ibm.com: Shutting down! ltfseecachesrv.tuc.stglabs.ibm.com: 'shutdown' command about to kill process  24101 ltfseecachesrv.tuc.stglabs.ibm.com: Unloading modules from  /lib/modules/3.10.0-229.el7.x86_64/extra ltfseecachesrv.tuc.stglabs.ibm.com: Unloading module mmfs26 ltfseecachesrv.tuc.stglabs.ibm.com: Unloading module mmfslinux Wed Mar 22 13:32:10 MST 2017: mmshutdown: Finished [root@ltfseecachesrv ~]# mmchnode --gateway -N ltfseecachesrv Tue Mar 21 16:49:16 MST 2017: mmchnode: Processing node  ltfseecachesrv.tuc.stglabs.ibm.com [root@ltfseecachesrv ~]# [root@ltfseecachesrv ~]# mmstartup -a Wed Mar 22 13:41:02 MST 2017: mmstartup: Starting GPFS ... [root@ltfseecachesrv ~]# mmmount all -a Wed Mar 22 13:41:22 MST 2017: mmmount: Mounting file systems ... [root@ltfseecachesrv ~]# systemctl start hsm [root@ltfseecachesrv ~]# dsmmigfs start IBM Spectrum Protect Command Line Space Management Client Interface Client Version 8, Release 1, Level 0.0 Client date/time: 03/22/2017 13:41:36 (c) Copyright by IBM Corporation and other(s) 1990, 2016. All Rights Reserved. [root@ltfseecachesrv ~]# dsmmigfs enablefailover IBM Spectrum Protect Command Line Space Management Client Interface Client Version 8, Release 1, Level 0.0 Client date/time: 03/22/2017 13:41:41 (c) Copyright by IBM Corporation and other(s) 1990, 2016. All Rights Reserved. Automatic failover is enabled on this node in mode ENABLED. Example 6-23 Starting IBM Spectrum Scale Example 6-22 Setting a gateway node 9. Properly start IBM Spectrum Scale by using the commands in Example 6-23. 8. With IBM Spectrum Archive EE and IBM Spectrum Scale both shut down, set the gateway  nodes if they have not been set when IBM Spectrum Scale was configured by using the  command in Example 6-22. 124  IBM Spectrum Archive Enterprise Edition V1.2.6: Installation and Configuration Guide