🚀 go-pugleaf

alan@nabeth.enet.dec.com (Alan Rollow) writes:
}thomson@zarda.macc.wisc.edu (Don Thomson) writes:
}>We are looking at upgrading our campus Usenet News server from a hopelessly
}>overburdened DECstation 3100 to a DECstation 5000/240.  The biggest bottleneck
}>for handling news has been disk access time, so we're looking at options that
}>will allow us the highest disk throughput possible to a disk with a capacity
}>of at least a gigabyte.  I'm looking for advice on an optimal configuration
}>for these needs, including:
 ...
}Most of the I/O was 8 KB, but the next biggest chunk was 1 KB.

}An IPI subsystem will probably help, but it seems a bit overkill...

Perhaps not.  A fairly recent Usenix Paper, "Why SCSI is better than IPI
for NFS" (or something like that), held that IPI was really only a win
for large sequential I/Os, for the NFS I/O mix (generally 8KB and all
over the disk [sound familiar?]) SCSI was a win.

John
-- 
John Hascall                   ``An ill-chosen word is the fool's messenger.''
Systems Software Engineer
Project Vincent
Iowa State University Computation Center  +  Ames, IA  50011  +  515/294-9551