Jim Carter wrote:
> On Fri, 23 Mar 2007, Victor Danilchenko wrote:
>
>> The problem is this. We have individual systems indirectly automounting
>> each other. As such, it is useful for them to be able to keep both the
>> automounted and the local mountpoints in the same tree, for performance
>> reasons (rather than mount self over NFS from the /exports/myhost
>> directory into the /nfs/myhost directory, for example). With automount
>
> Which operating system is this? We're running Linux (with autofs-4), and
> autofs is smart enough to recognize and do a bind mount of local
> filesystems, so there is no overhead.
Interesting. I didn't know that. I am sure it's the same way on Fedora
and RHEL. I hope someone will offer a way to customize the LDAP filter,
but if it's not possible, we will go with your idea, thanks.
Thanks a bunch.
> We don't do anything special;
> however, the local filesystems are in one place (/h[1-9], /m[1-9]) while
> the automounted references are elsewhere (/net/$HOSTNAME). Here's an
> excerpt from /etc/mtab on a typical host, Sunset:
>
> /dev/sdb2 /m1 ext3 rw,acl,user_xattr,quota 0 0
> automount(pid4220) /net autofs rw,fd=4,pgrp=4220,minproto=2,maxproto=4 0 0
> automount(pid4094) /net/sunset autofs rw,fd=4,pgrp=4220...
> /m1 /net/sunset/m1 none rw,bind 0 0 <== Bind mount here
> automount(pid21051) /net/julia autofs rw,fd=4,pgrp=4220...
> julia:/h1 /net/julia/h1 nfs rw,,addr=128.97.4.5... <== NFS mount here
>
> So at least on Linux you don't need to exclude local filesystems from the
> automount map. I believe Solaris also has this situation covered but I
> can't remember just what it does.
>
> James F. Carter Voice 310 825 2897 FAX 310 206 6673
> UCLA-Mathnet; 6115 MSA; 405 Hilgard Ave.; Los Angeles, CA, USA 90095-1555
> Email: [EMAIL PROTECTED] http://www.math.ucla.edu/~jimc (q.v. for PGP key)
--
| Victor Danilchenko + Unix: Your gun, Your bullet, |
| [EMAIL PROTECTED] | Your foot, Your choice. |
| CSCF | 5-4231 | MS: Same as Unix, BUT: No choice, |
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