[CentOS] ThinkStation with BIOS RAID and disk error messages in gparted

Fri Oct 23 15:19:53 UTC 2020
H <agents at meddatainc.com>

On 10/23/2020 03:29 AM, Simon Matter wrote:
>> My ThinkStation runs CentOS 7 which I installed on a BIOS RAID 0 setup
>> with two identical 256 Gb SSDs after removing Windows. It runs fine but I
>> just discovered in gparted something that does not seem right:
>> - Launching gparted it complains "invalid argument during seek for red on
>> /dev/md126" and when I click on Ignore I get another error "The backup GPT
>> table is corrupt, but the primary appears OK, so that will be used." I
>> then click on OK whereupon I again see the second error message. I then
>> see "Not all of the space available to /dev/sdb appears to be used, you
>> can fix the GPT to use all of the space (an extra 6832 blocks) or continue
>> with the current setting? " I click on Fix but nothing seems to happen. I
>> am not sure what /dev/md126 is but it is the exact same size as sda and
>> sdb which I believe are the two RAID disks. I also have two other hard
>> disks which seem to be fine, one using XFS, the other ZFS.
>> Does this look familiar to anyone? Given the error messages it seems this
>> is something I ought to fix sooner rather than later. Any idea what I
>> should do?
> I'm a bit confused what you have here. Did you mix pseudo hardware RAID
> (BIOS RAID 0) with software RAID here? Because /dev/md126 clearly is part
> of a software RAID.
> Regards,
> Simon
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Not that I know of but how do I check my configuration?