How to use the VxFS concurrent I/O mount option, cio.
Article ID: 100022579
Updated On:
Resolution
The "cio"mount option specifies the file system be mounted for concurrent readers and writers. This is an optional licensed feature. A Storage Foundation Standard license is sufficient to access this feature.
Example:
# mount-F vxfs -o cio /dev/vx/dsk/foo/test /mnt
To verify that the option is active:
# grepcio /etc/mnttab
/dev/vx/dsk/foo/test /mnt vxfs rw,suid,delaylog,largefiles,cio,ioerror=mwdisable,dev=46d09a0 1259087448
Note: You may not use the remount option to disable "cio". The file system must be completely unmounted and mounted again.
# mount-F vxfs -o remount /dev/vx/dsk/foo/test /mnt
# grepcio /etc/mnttab
/dev/vx/dsk/foo/test /mnt vxfs rw,suid,delaylog,largefiles,cio,ioerror=mwdisable,dev=46d09a0 1259087802
Issue/Introduction
How to use the VxFS concurrent I/O mount option, cio.
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