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Groups > linux.debian.user > #188859
| From | deloptes <deloptes@gmail.com> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: Talking about RAID - disks with same id |
| Date | 2017-11-10 20:50 +0100 |
| Message-ID | <uKntn-7Bp-5@gated-at.bofh.it> (permalink) |
| References | <uJGop-4j2-5@gated-at.bofh.it> <uK3XH-2Vo-1@gated-at.bofh.it> <uKcHD-J9-1@gated-at.bofh.it> <uKkYy-6dO-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Joe Pfeiffer wrote:
> It's my understanding that PTUUID on a disk using an MBR corresponds to
> the UUID on a disk using a GPT, not to PARTUUID (I don't know what on an
> MBR-based disk would correspond to PARTUUID, if anything).
# blkid /dev/sdf1
/dev/sdf1: UUID="5427071b-25c8-fff8-476d-ff8c9852b714"
TYPE="linux_raid_member" PARTUUID="13e17ac7-01"
# blkid /dev/sdg1
/dev/sdg1: UUID="5427071b-25c8-fff8-476d-ff8c9852b714"
TYPE="linux_raid_member" PARTUUID="13e17ac7-01"
# blkid /dev/sdf
/dev/sdf: PTUUID="13e17ac7" PTTYPE="dos"
^^^^^^^^
# blkid /dev/sdg
/dev/sdg: PTUUID="13e17ac7" PTTYPE="dos"
^^^^^^^^
Correct and exactly this is the subject of my concern. What blkid is
reporting for the disk matches (correctly) to the PARTUUID - which as it
looks like tells us which partition it is.
I can't believe that this blkid library might be used in raid as if you read
the description it can easily report identical IDs.
Might be really worth examining the code - the last thing I wanted to do
now. Perhaps I ask on the kernel list.
thanks and regards
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Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-08 22:50 +0100
Re: Talking about RAID - disks with same id David Christensen <dpchrist@holgerdanske.com> - 2017-11-08 23:40 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-09 08:20 +0100
Re: Talking about RAID - disks with same id David Christensen <dpchrist@holgerdanske.com> - 2017-11-09 19:20 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-09 22:10 +0100
Re: Talking about RAID - disks with same id David Christensen <dpchrist@holgerdanske.com> - 2017-11-09 23:50 +0100
Re: Talking about RAID - disks with same id Tobx <net@tobx.de> - 2017-11-09 10:40 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-09 22:20 +0100
Re: Talking about RAID - disks with same id Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2017-11-10 00:00 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-10 09:20 +0100
Re: Talking about RAID - disks with same id Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2017-11-10 18:10 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-10 20:50 +0100
Re: Talking about RAID - disks with same id Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-11-12 17:20 +0100
Re: Talking about RAID - disks with same id David Christensen <dpchrist@holgerdanske.com> - 2017-11-10 21:10 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-10 23:30 +0100
Re: Talking about RAID - disks with same id Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-11-12 17:00 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-12 18:00 +0100
Re: Talking about RAID - disks with same id Pascal Hambourg <pascal@plouf.fr.eu.org> - 2017-11-12 19:50 +0100
Re: Talking about RAID - disks with same id deloptes <deloptes@gmail.com> - 2017-11-12 20:20 +0100
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