From: Phillip Susi <psusi@cfl.rr.com>
To: "ATARAID (eg, Promise Fasttrak,
Highpoint 370) related discussions" <ataraid-list@redhat.com>
Cc: device-mapper development <dm-devel@redhat.com>, linux-lvm@redhat.com
Subject: Re: LVM on dmraid breakage
Date: Thu, 02 Aug 2007 17:50:51 -0400 [thread overview]
Message-ID: <46B251BB.1010004@cfl.rr.com> (raw)
In-Reply-To: <46B1B5E1.1050406@redhat.com>
Bryn M. Reeves wrote:
> But device-mapper already opens devices exclusively when a target claims
> them.
>
> The problem here sounds more like it's down to ordering; LVM2 is being
> given a chance to scan the devices & build LVs / claim devices before
> dmraid gets a look at them.
I think the "exclusive" open only prevents you from mounting a
filesystem on the device. It does not stop you from opening the device
and accessing it from user mode, nor does it apparently prevent dm from
(re)using the device.
The problem is that lvm is looking at the physical disks at all. It
needs to scan the dmraid device, not the underlying disks.
next prev parent reply other threads:[~2007-08-02 21:50 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-01 20:19 LVM on dmraid breakage Phillip Susi
2007-08-01 20:29 ` Jonathan Brassow
2007-08-01 21:19 ` Phillip Susi
2007-08-01 21:44 ` Jonathan Brassow
2007-08-01 22:12 ` Chandra Seetharaman
2007-08-02 6:50 ` Luca Berra
2007-08-02 6:50 ` [linux-lvm] " Luca Berra
2007-08-02 10:45 ` Bryn M. Reeves
2007-08-02 10:45 ` [linux-lvm] " Bryn M. Reeves
2007-08-02 21:50 ` Phillip Susi [this message]
2007-08-03 0:40 ` David Robinson
2007-08-03 0:40 ` [linux-lvm] Re: [dm-devel] " David Robinson
2007-08-07 21:37 ` Alasdair G Kergon
2007-08-07 21:37 ` [linux-lvm] " Alasdair G Kergon
2007-08-08 21:00 ` Phillip Susi
2007-08-07 21:03 ` Alasdair G Kergon
2007-08-07 21:03 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-08 21:04 ` Phillip Susi
2007-08-08 21:45 ` Alasdair G Kergon
2007-08-08 21:45 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-09 17:27 ` Phillip Susi
2007-08-10 5:09 ` Luca Berra
2007-08-10 5:09 ` [linux-lvm] Re: [dm-devel] " Luca Berra
2007-08-10 13:49 ` Alasdair G Kergon
2007-08-10 13:49 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-10 20:15 ` Phillip Susi
2007-08-03 7:55 ` [linux-lvm] " Luca Berra
2007-08-02 22:04 ` Phillip Susi
2007-08-03 8:11 ` Luca Berra
2007-08-03 8:11 ` [linux-lvm] Re: [dm-devel] " Luca Berra
2007-08-03 18:10 ` Phillip Susi
2007-08-03 19:57 ` Luca Berra
2007-08-03 19:57 ` [linux-lvm] Re: [dm-devel] " Luca Berra
2007-08-03 21:30 ` Phillip Susi
2007-08-04 6:50 ` [dm-devel] " Luca Berra
2007-08-04 6:50 ` [linux-lvm] " Luca Berra
2007-08-06 14:45 ` Phillip Susi
2007-08-07 9:17 ` Luca Berra
2007-08-07 9:17 ` [linux-lvm] Re: [dm-devel] " Luca Berra
2007-08-07 15:58 ` Phillip Susi
2007-08-07 22:01 ` Alasdair G Kergon
2007-08-07 22:01 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-08 21:06 ` Phillip Susi
2007-08-07 21:53 ` Alasdair G Kergon
2007-08-07 21:53 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-07 21:50 ` Alasdair G Kergon
2007-08-07 21:50 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-07 21:40 ` Alasdair G Kergon
2007-08-07 21:40 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-07 21:28 ` Alasdair G Kergon
2007-08-07 21:28 ` [linux-lvm] Re: [dm-devel] " Alasdair G Kergon
2007-08-08 21:13 ` Phillip Susi
2007-08-07 21:02 ` Alasdair G Kergon
2007-08-07 21:02 ` [linux-lvm] " Alasdair G Kergon
2007-08-07 20:52 ` Alasdair G Kergon
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