>network architecture. Once the OS caches the network connection, the
>multiple 100mb fibre channels will speed right along.
The media transit time is nearly never the issue in the total
incremental delay of network vs local data access.
The dominant factor is the OS overhead of tcp/ip or other protocol
stack, network layers in the OS, none of which exists talking to a
SCSI/PCI card with 128 megs of cache.
If you have just one storage channel or medium on the server, then
there will horrendously worse channel or storage media contention vs
local access.
The real architectural dumbness is that you have X Imail servers
trying each trying to access its PRIVATE data on one server.
ie, the data on the shared storage (mailboxes) is not shareable by
the X Imail servers. What's the point of penalizing X Imail servers
by making them slug it out for non-shareable data on shared storage
while sucking it through network protocols and OS network layers?
Len
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