A beginner question about Murder

Shuvam Misra shuvam.misra at merceworld.com
Thu Sep 16 13:51:22 EDT 2010

> So we use about ten common Intel based servers for BEs (sized to
> support loss of 2/3 servers) and store data on NAS. Users are active
> and filer is about tens of thousand nfsop/s at the busy hour.
> About 10% to 20% of the users connect at least one time a day, globally
> 4 million connections per day.

These are quite massive figures -- I'm thoroughly impressed. I am
assuming that your back-ends experience 50,000-100,000 concurrent IMAP
connections during certain parts of the day. This means that each BE
takes 5,000-10,000 parallel connections. Can an ordinary Intel server
handle such loads? What's the CPU and RAM of each?

Also, how many NAS servers/appliances are being used? I would have
thought that something like NFS would be too slow for such heavy IO
loads, but evidently I'm wrong.


More information about the Info-cyrus mailing list