[Info-vax] Sudden problems with slow sftp transfers and slow disk accesses

[Bill Gunshannon]

In article <le093c$6fv$1 at dont-email.me>,
	David Froble <davef at tsoft-inc.com> writes:
> Jan-Erik Soderholm wrote:
>> David Froble wrote 2014-02-18 16:05:
>>> gwilliams at cfa.harvard.edu wrote:
>>>
>>>> The switch is an auto-sensing Netgear 16-port FS116.  I don't see how
>>>> I can check what the switch is set to.
>>>>
>>>
>>> What changed?  Concentrate there ...
>>>
>>> Is this the same switch used in the old location ?
>>>
>>> If not, that might be the problem, either set the switch to match the
>>> Alphas, or, set the Alphas to match the switch.
>>>
>>> I'm guessing there is a good chance that the cables are new.  If so, 
>>> try a
>>> replacement cable, replacing the in place cables one at a time and test.
>>>
>>> You got a network problem, don't blame the computers ....
>> 
>> Maybe you have not followed the thread, but this issue is probably
>> solved by now. The switch was an unmanaged (sheap home) switch that 
>> probably fall-backed into half-duplex...
>> 
>> A faulty cable giving "possible duplex mismatch"?
>> I would first look for a duplex mismatch... :-)
>> 
>> Jan-Erik.
> 
> It's probably the duplex issue, I agree.  But, he moved 8 Alphas, and we 
> don't know what has changed, and it could be lots of things.  Trust 
> nothing.  Verify everything.  One thing at a time.  Who knows what might 
> be found?
> 
> The key question is, "what changed?".  Did he use the same switch?  If 
> so, why problems all of a sudden.
> 
> The OP is withholding important data ....

Ummm..  No he is not.  You must have missed:
  "most of the interfaces carrying IP traffic display "possible duplex
   mismatch" when running the SHOW DEV/INT command."

Seems rather plain to most of the people here who have already told him
where to look for the problem.

I agree with Scott Dorsey's solution 100%.

bill

-- 
Bill Gunshannon          |  de-moc-ra-cy (di mok' ra see) n.  Three wolves
billg999 at cs.scranton.edu |  and a sheep voting on what's for dinner.
University of Scranton   |
Scranton, Pennsylvania   |         #include <std.disclaimer.h>