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
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
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2 replies Latest Post - 2010-06-02T03:53:10Z by ishields
Pinned topic rdac - mppUtil showing "ghost disks"
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Updated on 2010-06-02T03:53:10Z at 2010-06-02T03:53:10Z by ishields
triqui 270002F4UC2 PostsACCEPTED ANSWER
Re: rdac - mppUtil showing "ghost disks"2010-05-20T09:11:11Z in response to triquiHi,
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)
change the boot order in grub.conf in order to boot without mpp support.
shutdown -r now
cd /var; rm -rf mpp
change the boot order in grub.conf in order to boot with mpp support.
Of course, it's probably not the best way but it worked for me
Hope this will help others.