[linux-lvm] Re: LVM2 on top of RAID1? (x86_64)
bluca at comedia.it
Thu Feb 12 15:05:01 UTC 2004
Kevin P. Fleming wrote:
> Luca Berra wrote:
>> i still believe it would be better if lvm ignored md component devices
> In kernel 2.6 land this is easy to do as well (for everything, not just
> MD). When vgscan tries to open the device to read metadata, open it with
> O_EXCL. If any other kernel subsystem is currently using the device,
> then the open() will fail and vgscan can ignore the device.
this won't help if the device is not yet opened by md
i posted a patch to this list that checks for an md superblock.
i am pushing for consideration of this approach.
More information about the linux-lvm