I have had luck with setting tcpwindowsize 0 on server and client and letting the OS handle it. Also diskbuffsize 512.
Hans Chr. On Thu, Feb 18, 2016 at 8:15 PM, Skylar Thompson <skyl...@u.washington.edu> wrote: > 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 > > -- > -- Skylar Thompson (skyl...@u.washington.edu) > -- Genome Sciences Department, System Administrator > -- Foege Building S046, (206)-685-7354 > -- University of Washington School of Medicine >
