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

[Jan-Erik Soderholm]

Bill Gunshannon wrote 2014-02-18 17:32:
> In article <ldvqek$c1h$1 at news.albasani.net>,
> 	Jan-Erik Soderholm <jan-erik.soderholm at telia.com> writes:
>> gwilliams at cfa.harvard.edu wrote 2014-02-18 14:25:
>>
>>> On Tuesday, February 18, 2014 8:16:17 AM UTC-5, Jan-Erik Soderholm wrote:
>>>>
>>>> This is probably *NOT* an issue with your Alpha servers or
>>>> with OpenVMS. CHECK YOUR SWITCHES SETTINGS!
>>>>
>>>> "possible duplex mismatch" is not that hard to understand.
>>>>
>>>> Your problems with (s)ftp is exactly what is expected when
>>>> the switch runs half-duplex. Terminal sessions runs OK, ftp
>>>> of small files works but larger file transfers "hangs".
>>>>
>>>> Jan-Erik.
>>>
>>> The switch is an auto-sensing Netgear 16-port FS116.  I don't see how
>>> I can check what the switch is set to.
>>>
>>
>> Are you saying that you are running *8* Alphas in an
>> environment with *unmanaged* switches? It sounds as
>> some professional environment and not using managed
>> switches sound a bit weird.
>
> I was going to say something about this but thought it better not to
> get in a pissing contest over business vs. home network architecture.
>
>>
>> The FS116 is one of the cheapest home switches available,
>> aprox $60 each here in Sweden.
>>
>> I had the same problem with my test system (DS25) in
>> my office using an similar unmanaged DLink switch and
>> I simply enabled Auto-negotiation and all was fine.
>>
>> $ mc latcp set device /autonegotiate EIA0:
>>
>> or whatever your interface/device is called.
>>
>
> I use managed switches (Netgear) at home.  We use Cisco at work.
> I haven't used an unmanaged switch in either place for more than
> a decade.
>
> bill
>

There us nothing wrong with them, if you know that you have them and
that they are hard locked to auto-negotiation. *And* that you actualy
*say so* if you are looking/asking for help... :-)

Jan-Erik.