I thought TCPBUFFSIZE could only go up to 64? It could be that setting it
to 512 actually sets it to the default of 16.

On Thu, Feb 18, 2016 at 02:03:26PM -0500, Tom Alverson wrote:
> I am seeing very poor WAN performance on all of my (wan based) TSM
> backups.  Due to the latency (40 msec typical) I normally only get about
> 20% of the available bandwidth used by a TSM backup.  With EMC Networker I
> get over 90% utilization.  I have already set all of these recommended
> options:
>
> RESOURCEUTILIZATION 2
>
> TXNBYTELIMIT 2097152
>
> TCPNODELAY YES
>
> TCPBUFFSIZE 512
>
> TCPWINDOWSIZE 2048
>
> LARGECOMMBUFFERS YES
>
>
> Does anyone know of anything else that could help performance?  Has anyone
> used a Riverbed accelerator for TSM backups?
>
>
> Tom

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-- Skylar Thompson (skylar2 AT u.washington DOT edu)
-- Genome Sciences Department, System Administrator
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