I was making text file copies of some system utility output (e.g. ioscan) and happened to look at /etc/fstab and found this:
/dev/vg02/lvol1 /prodbkup vxfs ioerror=mwdisable,log,nodatainlog,dev=40
020001 0 0

my other entries look like this:
/dev/vg04/lvol1 /trainbkup vxfs log,nodatainlog 0 0
---
I have no idea why this filesystem is different. tje ioerror=mwdisable and the dev=40020001
What does it mean and does it make sense?