Re: Chunks Disappeared After Reboot!

Paul J. Reimold wrote: > >Here's the situation. NCR 5100M, Informix Online 7.12, EMC 5500 >Symmetrix array. NCR Disk Array Plus created virtual disks (vdisks) >striped across SCSI channels. > >Created links (chunk1,etc.) to vdisks in /dev/rdsk (raw chunks). Change >ownership of chunks and vdisk files to Informix. > >After power down/up, chunk link files are gone! vdisk files had >original root ownership and permissions. > >Luckily, I was able to recreate the chunk links and get the Informix >instance going, but it was quite a scare! > >Any ideas, thoughts out there? Incidently, I did not experience this >problem with chunks linked to partition slices rather than virtual >disks. Paul, a similar scare occurs with DG-UX. In my client's case, the solution was to use soft links (ln -s ) rather than the hard link. In DG-UX, when you reboot, all /dev/devices lose their hard links. However, soft links hang around. I never made the connection with the fact that these were virtual disks we were losing hard links to. I have seen some other folks answers (apparently) telling you to mknod the devices outside of /dev. Have been a system admin (fortunately,a non critical system) I have a low comfort level with this. Stick to the soft link. >** General Accident Insurance ** HMMmmm.. .. . Anyone out there sell chunk insurance? ;-) -- -- Jake (In pursuit of undomesticated aquatic avians to insure) +----------------------------------------------------------+ |Aside from that, how did you enjoy the play, Mrs. Lincoln?| +----------------------------------------------------------+