Lustre discuss - Oct 2009 - lustre patched client subdirectory mount

-- Debian x86_32 / 2.6.27.23 / Lustre 1.8.1 (tcp0) / DRBD 8.3.4

Hello,
With NFS if I export "aa.bb.cc.dd:/" directory, I can mount e.g.
aa.bb.cc.dd:/var/log on client, seems it''s impossible on lustre
patched client - so currently the only way is to mount lustre FS,
and do mount -o bind on client to achieve the same effect?

Regards,
DT

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-

On 20-Oct-09, at 11:19, Piotr Wadas wrote:
> With NFS if I export "aa.bb.cc.dd:/" directory, I can mount e.g.
> aa.bb.cc.dd:/var/log on client, seems it''s impossible on lustre
> patched client - so currently the only way is to mount lustre FS,
> and do mount -o bind on client to achieve the same effect?

Correct.  We do not yet support sub-mounts, but as you say, it is
possible on Linux to do a bind mount and then umount the original
mountpoint.

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.