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2 replies Latest Post - ‏2010-06-02T03:53:10Z by ishields
triqui
triqui
2 Posts
ACCEPTED ANSWER

Pinned topic rdac - mppUtil showing "ghost disks"

‏2010-05-18T16:12:02Z |
Hi everyone,

I'm getting some trouble with the rdac driver on a RedHat 5.3.
This is my environment:

I have a IBM xSeries 3559 with RHEL 5.3 64 bits
The machine has 2 HBAs (qlogic) which have disks mapped on an IBM DS4700 Disk Storage.
The multipath driver is rdac "Linux MPP Driver Version: 09.03.0C05.0233"

I recently removed two disks from the DS4700 (unmapping, deleting)

On the Linux box, I ran the mppBusRescan utility.

Now mppUtil -S shows me all the disks I should see plus 2 disks that are marked "down".

I then ran
mppBusRescan -d
mppUpdate
reboot

After rebooting, I'm still seeing the "unmapped disks" with mppUtil -S

Any idea on how to tell the rdac driver that those disks are not there?

Many thanks in advance
Regards
Updated on 2010-06-02T03:53:10Z at 2010-06-02T03:53:10Z by ishields
  • triqui
    triqui
    2 Posts
    ACCEPTED ANSWER

    Re: rdac - mppUtil showing "ghost disks"

    ‏2010-05-20T09:11:11Z  in response to triqui
    Hi,

    I finally choose to re-install the rdac driver.
    These are the steps I followed:

    cd /opt/linuxrdac-09.03.0C05.0233 (my rdac source directory)
    make uninstall
    change the boot order in grub.conf in order to boot without mpp support.
    shutdown -r now
    cd /var; rm -rf mpp
    cd /opt/linuxrdac-09.03.0C05.0233
    make
    male install
    change the boot order in grub.conf in order to boot with mpp support.

    Et voilà

    Of course, it's probably not the best way but it worked for me

    Hope this will help others.

    Regards
    • ishields
      ishields
      988 Posts
      ACCEPTED ANSWER

      Re: rdac - mppUtil showing "ghost disks"

      ‏2010-06-02T03:53:10Z  in response to triqui
      Thanks for the update. I'm assuming you mean "make install" rather than "male install". :-)

      Ian Shields