Hi, I am having a major problem. I am running AIX 4.3.3 and I have lost access to the filesystems in a volume group. When I run df -k I get I/O errors for the filesystems within the volume group. When I run lsvg -l datavg I get the following error message: root@gbscrib:/> lsvg -l datavg 0516-034 : Unable to access volume group device. Execute redefinevg to build correct environment. The volume group appears to be there and ok and the filesystems seem to be mounted ok. root@gbscrib:/> lsvg -o csarchivevg data3vg data2vg datavg data4vg rootvg I tried the redefinevg and it hasn't helped. Does anybody have any ideas on how to fix this one? Thanks

In order not to foul things up worse than they are, I would recommend you get the IBM redbooks on the subject. Go to www.redbooks.ibm.com and download SG24-5432 and SG24-5432. These are extensive redbooks on the AIX Logical Volume Manager.