Bug 134644

Summary: OS sees two disks when there is only one RAID1 Logical drive
Product: [Fedora] Fedora Reporter: Paul McWatt <pmcwatt>
Component: partedAssignee: Jeremy Katz <katzj>
Status: CLOSED WONTFIX QA Contact: Brock Organ <borgan>
Severity: medium Docs Contact:
Priority: medium    
Version: 2CC: clausen
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Hardware: i386   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2004-10-05 14:42:41 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Paul McWatt 2004-10-05 12:29:35 UTC
From Bugzilla Helper:
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Description of problem:
I have an IBM x226 server with onboard Adaptec HostRAID SATA 
controller. I have two disks installed - i have used the Adaptec 
Utility and the IBM ServeRAID utility to create a RAID1 array with 
the two disks. When the system boots the Adaptec BIOS sees 1 logical 
drive in the RAID1 array.
When i install FC2, disk druid sees two disks and when installation 
is complete fdisk sees two disks.
lsmod shows the driver loaded at ata-piix

If i shut down the system and remove one of the disks i get a kernel 
panic upon restart.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.Create hardware raid1 with two disks on IBM x226 or any other Intel 
CPU based system with the Adaptec HostRAID SATA controller
2.Install FC2
3.Check fdisk - you will see two disks
    

Actual Results:  You will see two disks

Expected Results:  Should only see one disk

Additional info:

Comment 1 Jeremy Katz 2004-10-05 14:42:41 UTC
We don't support the HostRAID RAID format right now and only see the
individual drives as the kernel only very recently grew a way for
dealing with this (via dmraid which then requires a reasonable amount
of work to integrate into the installer)