relinking

not sure if this is possible or not - here's the scoop - just upgraded to Solaris 7 ( running ods 7.23) and now using disksuite as opposed to vm. Upgrade went fine and restore of database services was easy.... here's the question - Can I change the paths for the symlinks to the raw devices? I know that you can easily relink to a new disk if necessary - but how about doing the opposite and changing the name(path) of the symlink? Really don't want to stay with the vm directory structure - if possible. ex - /dev/vx/rdsk/dbdg/rootchunk to /dev/dbgroup/rootchunk thanks, Maria ---------------------------------------------------------------- Maria L. Wilson 757.766.8265 757.766.2571(fax) Computer Sciences Corporation NASA Langley Research Center m.l.wilson@larc.nasa.gov Hampton, VA 23666 http://www.larc.nasa.gov ----------------------------------------------------------------

Maria Wilson wrote: > > not sure if this is possible or not - here's the scoop - > just upgraded to Solaris 7 ( running ods 7.23) and now using disksuite > as opposed to vm. Upgrade went fine and restore of database services > was easy.... here's the question - Can I change the paths for the > symlinks to the raw devices? I know that you can easily relink to a new > disk if necessary - but how about doing the opposite and changing the > name(path) of the symlink? Really don't want to stay with the vm > directory structure - if possible. > > ex - /dev/vx/rdsk/dbdg/rootchunk to /dev/dbgroup/rootchunk Hence the recommendation, which I often repeat, to NOT place these links in /dev AT ALL but in a directory under the informix HOME directory, vis: ~informix/disks -OR- ~informix/chunks So my root chunk might be set to /home/informix/disks/rtdb_1 which is a symlink to /dev/rdsk/informixraw_root which is in turn a pseudo-link to /dev/rdsk/vdm(informixraw_root,3BD7F32F,6EC334DD,0) which is the actual device that the DG volume manager creates. In 5.xx, to reduce the lengths of the paths to a minimum, I used to use the directory "/i" to hold my chunks. For convention that is now a link to ~informix/disks since old scripts still look for /i/* when trying to locate chunk links. OH! To the question, before I forget altogether: No, you cannot change your linknames once the chunks have been added to the engine. The ONLY solution is to build a new engine with the new links and copy the data, unless you are brave enough to attempt to rewrite the chunk table reserved pages. Art S. Kagel