dears,

We have got a server with two array controllers P400 (built in card),
additional card P800 (PCI card), each connected with 8x146Gb SAS
drives.
which i am required to built for a new Sybase database and
application. Server is DL 585 G5

I installed RHEL 4.0, P400 appeared as /dev/cciss/c0d0 and P800 as
c1d0. All went nicely and installed GRUB on /dev/cciss/c0d0; It was
just warming up and again required me to re-install.

This time P400 appearing as c1d0 and P800 as c0d0 during installation.

Does anyone know what can cause this device name to swap, & how does
it effect server in case it happens again? I have allocated everything
under LVM2 except (/) file system,  / is at c1d0p1 now.

The only changed I can think of is:
a) opened the server to check Raid cache memory backup "battery" on
p400, whether present or not, No other change
b) made some changes into the BIOS relating to booting preference, NO
other change

Any guesses?

Regards
Yash

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