[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

[dm-devel] Re: LVM on dmraid breakage



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.


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]