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

[Jan-Erik Soderholm]

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.

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.

Jan-Erik.