Bug 134644 - OS sees two disks when there is only one RAID1 Logical drive
Summary: OS sees two disks when there is only one RAID1 Logical drive
Alias: None
Product: Fedora
Classification: Fedora
Component: parted   
(Show other bugs)
Version: 2
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Jeremy Katz
QA Contact: Brock Organ
Depends On:
TreeView+ depends on / blocked
Reported: 2004-10-05 12:29 UTC by Paul McWatt
Modified: 2007-11-30 22:10 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2004-10-05 14:42:41 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Paul McWatt 2004-10-05 12:29:35 UTC
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)

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:

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)

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