Re: Setting up Rootdbs on a raw disk

Thanks for everyones suggestions and help!!!!! I had check the typo and the permissions and the owner:group.The only thing I was doing wrong was that I was using c0t2d0p*, not c0t2d0s*. The clue David gave me was /dev/dsk links to /devices/...xxx[a-h] The *p* devices link to /devices/...xxx[q-z] >>> David Williams <djw@smooth1.demon.co.uk> 01/06/00 04:09PM >>> In article <850qbs$lje$1@news.xmission.com>, Anne Shelp <shean@mcdss.co.gov> writes > >Hi all, > >I got the part about setting up databases on raw files. I understand that using >links is the way to go. What I am >having problems with is actually getting it to work. I created a link to a raw >disk. > > ln /dev/rdsk/c0t2d0p3 /dbdisk/rootdisk (I also tried ln -s). > > When I try to initialize the database - oninit -i or through onmonitor I get >the error "Error opening file "dbdiisk/rootdisk" I know that I must be missing >some obvious step (and probably silly). Any ideas? > a) use ln -s as it is more readable when you do an ls -l otherwise it is very hard to check what it is linked to (At least under SCO you have to do an ncheck -i <inode-number> and it scans EVERY directory on the file system to find the links, take ages!!). b) As others have suggested checking the spelling, also c) /dev/rdsk/... will be a ln -s type link to a file in /devices do chown informix /devices/... chgrp informix /devices/... chmod 660 /devices/...,raw (NOTE: /dev/rdsk/... links to /devices/...xxx[a-h],raw /dev/dsk links to /devices/...xxx[a-h] to enable KAIO (faster) you want the ...,raw device) then you need to fix the permissions on the links chown -h informix /dev/rdsk/... chgrp -h informix /dev/rdsk/... chown -h informix /dbdisk/... chgrp -h informix /dbdisk/... the -h option changes the link rather than what the link points to ls -l /dbdisk should show rwxrwxrw informix informix ... ls -l /dev/rdsk/xxxxx,raw should show rwxrwxrwx informix infromix xxx -> /devices/yyy ls -l /devices/yyy should show rw-rw---- informix informix ....,raw Phew! It's late an I'm tired..zzzzz... [snip] > >TIA >Anne Shelp -- David Williams