View Full Version : Any advice on serving out large Powerpoints over AFP?

Feb 4, 2008, 08:51 AM
At work we are (being forced to) implementing an LDAP solution with portable home directories. I am running into performance issues when the users open their huge powerpoint presentation(in the hundreds of megs, hundreds of slides, Powerpoint 2004 already chokes on these on the local drive....) it can take quite a bit of time.

Aside from the normal AFP performance tune ups, anyone have any advice on how I can improve performance?

FWIW I'm 10.4.11(as are all my clients) with Office 2004 and the server is a first gen intel XServe.

Feb 4, 2008, 09:50 AM
If you set up users as mobile users they will have a mobile home instead of a network home. The difference is that a mobile home exists on the local hdd of the client and is synced back to the server at regular intervals. The sync only syncs up the changes reducing network usage. This also has the benifit of allowing people to continue to work with their files in the event of a network or server outage.

Otherwise the users have network homes which are read directly from the server like any other network share. Every read and write will cross the network.

Feb 4, 2008, 10:42 AM
mobile profiles is the way to go, i have had no problems with it.

Feb 4, 2008, 10:52 AM
Don't rush into Mobile Homes, its a great solution to your described problem but can be a headache to implement and requires some user education.

Are the clients using multiple computers or always the same one? If they are on multiple computers you will end up creating a mobile account on each computer they use, exponentially increasing the potential for conflicts, not too mention the wasted hard disk space. 10.5 server has some interesting controls for mobile account expiration that may be worth looking into. All of my mobile accounts are on 10.4.11 currently.

Feb 11, 2008, 02:08 PM
is that for some reason, even though cps are just as fast on AFP vs. NFS, Powerpoint 2004 is much slower if I export the homes via AFP than it is if I export them over NFS.

Anyone know why this might be and how I could fix it?

Feb 22, 2008, 04:54 PM
IIRC NFS is quick & dirty network sharing without security (either via subnet or "world"). It doesn't look at ACL's etc.
AFP OTOH is dependent on ownership and permissions, often stored in some form of networked directory structure.

In my experience: the safer and more customizable >>> the slower, therefore... the faster >>> more unsafe less customizable.

It's all about priorities.

Les Kern
Feb 23, 2008, 01:08 PM
We use the Shared folder locally when working on larger than large files. Not so much Powerpoint... ours are related to video editing. I'm not sure of how your machines are set up and if they are at a desk or they travel... but we trained our 2500 users under OD to move the file to the local shared folder, then move it back when done. The transfer takes no time at all. Sometimes we use USB drives as well. Next year larger files will be able to be worked on when we get Gig to the desktop... but even then it's better to work locally.