![]() To avoid putting real server name I’m using the below tips for my prompt customization: I’m not entering in the creation/modification of VxVM disk/disk group/controller and so on…Īll commands have been executed on a Red Hat Enterprise Linux Server release 5.5 (Tikanga) server configured with Veritas Volume Manager release VRTSvxvm-5.1.132.000-SP1RP2_RHEL5. Please note that this post is more for DBAs to see and understand what have been done by you system teammates i.e. Please note that this is absolutely not mandatory, what’s really important in my configuration is to have each disk visible through my 2 FC cards (so by one port minimum so each disk/LUN will have 2 names). So if everything is fiber wired (FC cards/ports to FC switches) I should see any disk array (enclosure) device/LUN as 4 equivalent name. Host3 WWN: ~]# for host in `ls /sys/class/fc_host/` do echo "$host WWN: `cat /sys/class/fc_host/$host/port_name`" done # for host in `ls /sys/class/fc_host/` do echo "$host WWN: `cat /sys/class/fc_host/$host/port_name`" done ![]() We will see this later but we need correspondence between SCSI chain number and its World Wide Name (WWN), here it is: Lrwxrwxrwx 1 root root 0 Jun 5 17:51 /sys/class/fc_host/host3/device ->. Lrwxrwxrwx 1 root root 0 Jun 5 17:51 /sys/class/fc_host/host2/device ->. Lrwxrwxrwx 1 root root 0 Jun 5 17:51 /sys/class/fc_host/host1/device ->. Lrwxrwxrwx 1 root root 0 Jun 5 17:49 /sys/class/fc_host/host0/device ->. Lrwxrwxrwx 1 root root 0 Jun 5 17: 51 /sys /class /fc_host /host3 /device - >. Lrwxrwxrwx 1 root root 0 Jun 5 17: 51 /sys /class /fc_host /host2 /device - >. Lrwxrwxrwx 1 root root 0 Jun 5 17: 51 /sys /class /fc_host /host1 /device - >. Lrwxrwxrwx 1 root root 0 Jun 5 17: 49 /sys /class /fc_host /host0 /device - >.
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