SUMMARY [STILL NEEDS HELP]: How to force identical major/minor numbers on two machines?

From: Mohamed Lrhazi <>
Date: Fri May 16 2003 - 14:50:52 EDT
Unfortunately, I still did not find a solution to my problem... makes me 
wonder if Sun did not made this this way to force people to use their 
clustering software!

Summary of the problem:
- Two identical servers, E4500, two identical disk shelves, A5000.
- Both shelves connected to both servers.
ls -lL /dev/rdsk/c[012]* on the two machines shows the files as having 
the same names, same major number but different minor numbers.

- Even when both systems are booted off a CDROM.
- We tried  recabling in each possible way we could imagine... the 
numbers change, but never agree.

Thanks for those who replied, especially : george goffe 
<>, who suggested and offered ideas on cloning  the 
system disk.

After I cloned /, /usr, /var /opt of system A, into a disk on system B, 
booted system B with -s argument only, no -r, the new system still 
changed the minor numbers of my disks on it own accord!!! and the 
resulting numbers do not match the original ones.

suggested I created those special files my self, and assigning the 
"right" minor numbers, using mknod.
Sounds great, but have no clue how to do that.. any ideas?

- suggested:
there are a few files that need to be identical on both machines in 
order for this to work:


I tried copying these files from system A to system B, then rebuilding 
the dev tree with devfsadm -C.... no avail. If it is for cluster stuff then use hamajor 
or haminor commands.
No, we are not using  HA software... only bundled Solaris.

Any input highly appreciated.. this is driving me nuts.

sunmanagers mailing list
Received on Fri May 16 14:50:45 2003

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