[linux-lvm] Problem with vgscan/ vgcfgrestore
AJ Lewis
lewis at sistina.com
Tue Mar 13 17:40:54 UTC 2001
On Tue, Mar 13, 2001 at 08:41:02AM +0100, Luca Berra wrote:
> i have a couple of ideas, but no time to code (sorry)
> 1) using realpath in the tools to solve issue 2
This should be done no matter what. I can't think of any good reason not to
have the tools follow sym-links.
> 2) checking if the devices mentioned in /proc/partition do really exist, else
> switch the cache to "scan the dev directory mode"
I believe this is the way it works at present
> but better than the above
> 3) add another structure to the cache which contains aliases to the device
> we have in the cache, aliases are added dynamically when found on the command
> line or in the VGDA of a PV. We use
> alias[c].name=possible alias;
> lstat(possible alias, &statbuf)
> if (S_ISLNK(statbuf.st_mode)) {
> alias[c].target=lvm_dir_cache_find(realpath(possible alias));
> if !(alias[c].target) stat(realptah(possible alias), &statbuf)
> }
> if (S_ISBLK(statbuf.st_mode)) {
> alias[c].target=lvm_dir_cache_find_dev(statbuf.st_dev>>8,statbuf.st_mode&((1<<8)-1));
> /* the above function has to be written*/
> }
> if (!alias[c].target) complain(loudly);
> c++;
>
> then we modify lvm_dir_cache_find to loop also on alias[], before it starts searching th
> cache.
This looks interesting...and could possibly help a lot as well.
Regards,
--
AJ Lewis
Sistina Software Inc. Voice: 612-379-3951
1313 5th St SE, Suite 111 Fax: 612-379-3952
Minneapolis, MN 55414 E-Mail: lewis at sistina.com
http://www.sistina.com
Current GPG fingerprint = 3B5F 6011 5216 76A5 2F6B 52A0 941E 1261 0029 2648
Get my key at: http://www.sistina.com/~lewis/gpgkey
(Unfortunately, the PKS-type keyservers do not work with multiple sub-keys)
-----Begin Obligatory Humorous Quote----------------------------------------
Life's short and hard, kind of like a bodybuilding elf
-----End Obligatory Humorous Quote------------------------------------------
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 232 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/linux-lvm/attachments/20010313/99132594/attachment.sig>
More information about the linux-lvm
mailing list