direct map&indirect map

[Victor_5]

Who can tell me what is the difference between direct map and indirect map?

Thanks!

[Satish Y · Accepted solution]

If u r talking about NFS.

Direct map: Symbolic links are created from the configured mount points to the corresponding mount points under /tmp_mnt.

Indirect map: A symbolic link is created from the parent directory of the configured mount points to the corresponding parent directory under /tmp_mnt.


For example:
exported direcory on server: /home

local mount point: /tmp_mnt/home
actual local dir: /home

Direct map: Link will be between /home/shawn and /tmp_mnt/home/shawn

Indirect map: Link will be between /home and /tmp_mnt/home

u can differ between direct and indirect by looking at /etc/auto_master file entries start with "/-" are direct mounted ones and absolute directory(say /home) is auto mounted.

You can go through following link for detailed discussion:
http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B1031-90048/B1031-90048_top.html&con=/hpux/onlinedocs/B1031-90048/00/00/11-con.html&toc=/hpux/onlinedocs/B1031-90048/00/00/11-toc.html&searchterms=auto%20mounter&queryid=20010713-134434

Cheers...
Satish.

[Satish Y]

Sorry messedup link in previous post. Here is the correct link:

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B1031-90048/B1031-90048_top.html&con=/hpux/onlinedocs/B1031-90048/00/00/11-con.html&toc=/hpux/onlinedocs/B1031-90048/00/00/11-toc.html&searchterms=auto%20mounter&queryid=20010713-134434


Cheers...
Satish.

[Satish Y]

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B1031-90048/B1031-90048_top.html&con=/hpux/onlinedocs/B1031-90048/00/00/11-con.html&toc=/hpux/onlinedocs/B1031-90048/00/00/11-toc.html&searchterms=auto%20mounter&queryid=20010713-134434

[A. Clay Stephenson]

Hi Shawn,


Satish's answer is correct if brief. I'm not sure that I can do any better. If you are really interested I would get a copy of the O'Reilly Book 'Managing NFS and NIS'. It is excellent.

Clay

[Victor_5]

Satish:

Perfect answer, very clear!

Clay:

Thanks a lot for your kindly message.