Sometimes an error will be returned when executing "vxdmpadm exclude dmpnodename=". NOTE: there might not be any errors when running this command.
[root@server101 ~]# vxdmpadm exclude dmpnodename=ibm_shark0_0
VxVM vxdctl ERROR V-5-1-1589 enable failed: Error in disk group configuration copies
To confirm if this issue is happening, you can check the path entries in the directory "/dev/vx/.dmp". All path entries in this directory should be unique. If this issue occurs, then disk paths will point to the same device.
Example from a system with the issue:
[root@server101 ~]# ls -lrth /dev/vx/.dmp/total 0
drwxr-xr-x. 2 root root 40 Nov 17 23:12 HBA
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sda -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdb -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdc -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdd -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sde -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdf -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdg -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdh -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdi -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
lrwxrwxrwx. 1 root root 47 Nov 18 00:43 sdj -> /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:0:0
A variable within Veritas code that is used to keep track of hardware paths was not being initialized properly. As a result, all of the paths are set the same.
This is resolved with the patch infoscale-rhel8_x86_64-Patch-7.4.2.4900
Excluding a disk from VxVM in RHEL8 can cause all disks to be excluded. The issue occurs on RHEL8 systems with VRTSvxvm-7.4.2.4600.
JIRA: SDSCPE-14481