[erbdave]

I am familiar with the tuning article and will review that again this summer, it sounds like I should not put all of my users onto the RAID, but keep them seperated out on different servers to keep from creating on AFP log-jam.
We’ve had some problems where the server(s) has become “unresponsive” and it is almost always an AFP process that is hogging the processor. Our intention was to remove the users dependency on a single server, so that if one server becomes unresponsive, they would be passed off to a Replica and would still be able to retrieve their home-folder. But since the retrieval of the home folder is AFP dependent, we still have the issue of only one server being capable of accessing the RAID, so we would still have a single point of failure.
Is there any way to make the RAID available to multiple servers?
Are we talking a fibre-channel switch?
Right now it is just accessible as a mounted drive on the server the Fibre is connected too. If I could connect multiple servers I could share drives out on their “primary” server to split the load and balance the AFP. Or is there a better way?

[erbdave]

Concurrent users would average about between 200 and 400, with peaks of about 800. We have 5 x-serves (3 G5’s, 2 G4s). I could probably dedicate one of the G5s to being an OD Replica and serving out home folders. Will it be able to handle this load, and how can I test it over the Summer?

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