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[ILUG] Re: [NFS] NFS throughput drops with SCSI activity

[ILUG] Re: [NFS] NFS throughput drops with SCSI activity

Caleb Epstein cae at bklyn.org
Thu Apr 26 13:09:55 IST 2001


On Thu, Apr 26, 2001 at 12:48:59PM +0100, Kenn Humborg wrote:

> Machine: HP Vectra PPro 200MHz dual-proc board with 1 CPU Kernel:
> 2.2.18 uniprocessor Ethernet: Netgear FA311 100BaseT
> Netgear-supplied driver SCSI: Adaptec AIC-7880U on-board aic7xxx
> driver DISK: Seagate ST32171N

> However, while writing to the disk, NFS throughput drops
> to about 0.5MB/s and I get "server timed out" & "server OK"
> messages a lot.  Sometimes NFS practically halts.  (Note

	I have had almost identical issues on a machine running a
	Netgear FA311 adapter with no SCSI, just IDE.  I swapped out
	the NIC for an eepro100 and they went away entirely.

	In short, I highly recommend a new NIC.  Either the drivers
	(I have tried both the netegar one and the one in 2.4.x)
	don't work properly or the hardware doesn't.

-- 
cae at bklyn dot org | Caleb Epstein | bklyn . org | Brooklyn Dust Bunny Mfg.




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