Thank you for your gracious response.

To demonstrate just how long its been, I forgot to mention that I'm working 
with TSM 7.1.1, on some AIX (6.1 I believe) and RedHat on Intel (7.2?) servers.

I think I'll be running some basic network performance tests first. The 
throughput I'm seeing doesn't appear to match people's glowing descriptions of 
how big the pipes are.

Thanks,
[RC]


On Dec 18, 2015, at 6:34 AM, "Vandeventer, Harold [OITS]" <Harold.Vandeventer 
AT KS DOT GOV> wrote:

> Welcome back Robert.  Lots of changes from the TSM 5 days.
> 
> I don't have any links to docs, but my experience has been...
> 
> I'm running Windows, 32 GB RAM, TSM 6.3.4.300.
> 
> I run 40 sessions on each Replication process.
> 
> The process is replicating a group that may have several members, 2 up to 15 
> or 20; semi-random on how I assigned.
> 
> I have a script that contains several REPLICATE NODE <groupname> commands.  
> Each command runs one group, with WAIT=YES, then another, with an exception 
> described next.
> 
> I have a group that has nodes with a very large numbers of files for those 
> nodes, thus the time required to determine what has to be migrated is long.  
> The amount of data to replicate isn't huge, just the time required to 
> inventory the status on a zillion files.
> 
> Therefore, that group is first in the script, with WAIT=NO, to immediately 
> start the next group in the script.  Subsequent replicate groups all have 
> WAIT=YES.
> 
> The only performance issue that I've seen as an issue is monitoring bandwidth 
> on the link between the source and target servers.  I've watched Network 
> stats in Windows Task Manager and depending on how many replication processes 
> are running, the impact on the bandwidth goes up.  I haven't seen any hits on 
> CPU or RAM.
> 
> 
> 
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of Robert Clark
> Sent: Thursday, December 17, 2015 4:39 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: [ADSM-L] Node replication information?
> 
> After a long hiatus from working with TSM, I am back to working with it 
> again. (I left during the TSM 5 timeframe.)
> 
> 
> 
> Does anyone have pointers to docs useful in figuring out how node replication 
> determines how much to attempt to do in parallel, or general information on 
> how to troubleshoot its performance.
> 
> 
> 
> Thanks,
> 
> [RC]
> 
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