can I change probe order of mpt controllers?



I have a shiny new Sun X4100 here and it works pretty well (except that there is a bug in the ILOM bios that refuses to let the serial port console run at 115200!!!)

I attached an external RAID array using an LSI fibre channel card, and now the boot disk is not found after the kernel boots. Ie, it can't find the root volume. This is because the fibre channel card is probed as mpt0 and the on-board disks are connected to mpt2. (Where's mpt1? no idea.) Once the RAID volume was initialized, the ordering of the disk device names changed.

Is there some way to force the boot drive controller to be probed first and be mpt0? Or is there some way to force the boot drive to be a fixed device name?

I'm planning to play with the RAID configuraitons and change partitions and add logical drives, etc., so this will be painful to reconfigure the OS every time I reconfigure the RAID. Any advice will be appreciated. Thanks!

I'm running 6.2/amd64 from a fresh CD install.




=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Vivek Khera, Ph.D. Khera Communications, Inc.
Internet: khera@xxxxxxxxxxx Rockville, MD +1-301-869-4449 x806


_______________________________________________
freebsd-stable@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscribe@xxxxxxxxxxx"



Relevant Pages

  • slackware 9.1 software raid problem
    ... Setting up a RAID system with Slackware 8 is not extremely difficult once ... mirroring the root partition and booting from that mirror was not possible. ... Each disk is attached to a different IDE chain on the motherboard. ... The ability to boot from the Slackware 8 install CD. ...
    (alt.os.linux)
  • Re: Is it HighPoint, is it Seagate, or is it Windows 2000 Professional
    ... I have really learnt about the uses and limits of RAID. ... Use all the manufacturer recommended system recovery ... provisions -- Emergency Disk, have a DOS boot disk ready, ... what could cause Windows to suddenly change its mind ...
    (microsoft.public.win2000.setup)
  • Re: [opensuse] 10.2 no RAID to 11.0 RAID 1
    ... 10.2 no RAID to 11.0 RAID 1 ... you can force rebuilds in mdadm in situations where no firmware raid will ever let you. ... Send me your problem disks that you think are impossible to assemble and I bet in a little while I can tell you how to assemble the array as long as there actually is enough there to use. ... One thing I've seen, which I don't think is your problem but shows the kind of thing that happens, a disk will drop out of the array and reappear instantly as a higher drive letter than the system really has. ...
    (SuSE)
  • LVM on SW RAID for sarge - success
    ... I've just had success migrating Debian Sarge to root on LVM on RAID. ... First make sure the SCSI BIOS boots from the first disk. ... I made reiserfs on all the filesystem partitions and completed the ... The remaining two disks were partitioned and used to create RAID arrays ...
    (Debian-User)
  • Re: Platzierung und Größe der Auslagerungsdatei
    ... der Controller steckt, ... Bei der Latency ist die Raptor um Faktor 1,4, bei der Seektime um Faktor ... We recommend that you plan to use less than 80% disk utilization at ... Raid 0 has the same cost as no raid. ...
    (microsoft.public.de.german.windows.server.general)