[gpfsug-discuss] NSD network checksums (nsdCksumTraditional)

[Jonathan Buzzard]

On 29/10/2018 20:47, Stephen Ulmer wrote:

[SNIP]

> 
> If ESS checksumming doesn’t protect on the wire I’d say that marketing 
> has run amok, because that has *definitely* been implied in meetings for 
> which I’ve been present. In fact, when asked if Spectrum Scale provides 
> checksumming for data in-flight, IBM sales has used it as an ESS up-sell 
> opportunity.
> 
Noting that on a TCP/IP network anything passing over a TCP connection 
is checksummed at the network layer. Consequently any addition 
checksumming is basically superfluous.

JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG