Kindly i really appreciate your help to me to fix this issue
[root@ruabon1 ~]# vxdisk list
DEVICE TYPE DISK GROUP STATUS
sda . auto:none - - error
sdb auto:disk unknown datadg error
Thanks in advance
a disk in error state usually mean disk has i/o related issue.
From vxvm 4.1 (hope I remembered the vetrsion correctly) onwards, disk in error state indicating the disk has an i/o relaetd issue.
you need to do the followings
1. check system log to see if there are any scsi relaetd errors against disks
2. check /etc/vx/dmpevents.log for disk scsi read/write errors
3. run the command below
vxdmpadm getsubpaths | grep -i disable
vxdmpadm listctlr all
do know if there are issues with dmp paths
4. if there are no scsi error, run vxdisksetup -i <disk> to inmitialize one disk to see if it works and if the command makes the disk online.
By the way, what is the OS version and vxvm, version?;