Error Code details
V-16-10001-5508
Severity: n/a 
Component: Cluster Server 
Message:
CFSMount:cfsmount5:online:Mount Error : UX:vxfs
Description:
Unable to mount shared CFS filesystem on Slave nodes with error reported
on mount point
2009/04/19 14:56:51 VCS WARNING V-16-10001-5502 (srini) CFSMount:cfsmount5:online:Mount Failed on this Node MountOptions -F vxfs -o cluster,nosuid Block Device /dev/vx/dsk/sridg/vol1 : MountPoint /vol1
2009/04/19 14:56:51 VCS WARNING V-16-10001-5508 (srini) CFSMount:cfsmount5:online:Mount Error : UX:vxfs mount: ERROR: V-3-21264: /dev/vx/dsk/sridg/vol1 is already mounted, /vol1 is busy,
allowable number of mount points exceeded
The above error message is misleading. After checking the mount point is
valid and not busy, check if filesystem has 'need fsck' flag set on CFS
Primary node.
sbui # fsclustadm -v showprimary /vol1
sbui
sbui #echo "8192B.p S" | fsdb -F vxfs /dev/vx/rdsk/sridg/vol1 | grep clean
flags 101 mod 0 clean 3c <=== Flag ends with 1, means full fsck is set.
Check the messages file for vxfs error messages
sbui # grep -i vxfs /var/adm/messages

 

Solution:
On CFS Primary, Stop the application using the mount point,unmount and run

fsck on the filesystem to fix the issue. Then mount the filesystem on both nodes.

seer.entsupport.symantec.com/docs/323723.htm

 

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