[dm-devel] Shared snapshots

[张宇]

does the origin device or cow  device can be resized dynamically?
once created the multisnapshot device 'ms':
echo 0 `blockdev --getsize /dev/mapper/vg1-lv1` multisnapshot /dev/mapper/
vg1-lv1 /dev/mapper/vg1-lv2 16 0 mikulas 0|dmsetup create ms
vg1-lv1, vg1-lv2, ms, if all of them can be resized dynamically?

thank you very much!


2009/12/16 Mikulas Patocka <mpatocka at redhat.com>

> Hi
>
> I uploaded new shared snapshots here:
> http://people.redhat.com/mpatocka/patches/kernel/new-snapshots/devel/
>
> changes:
>
> - Broken to separate patches, one patch per file. The last patch adds all
> the files to Makefile and makes it all compile. It allows you to ack
> patches individually. I didn't use stubs to compile intermediate patches,
> the problem is that if multiple patches modify the same file, general
> modifications to the code become harder. With one-patch-per-file I can
> edit it with normal text editor and quilt regenerates the patches.
>
> - Document on-disk format in dm-multisnap-mikulas-struct.h
>
> - More functions are commented
>
> - Removed /*printk ... */ statements. I left some #ifdefed debug routines,
> they are non-trivial to write again
>
> - Fixed a bug on big-endian systems
>
> - Exposed interface for snapshots-of-snapshots, tested that they work
>
> Mikulas
>
> --
> dm-devel mailing list
> dm-devel at redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/dm-devel/attachments/20091222/82349a91/attachment.htm>