Thanks Kurt for your quick response.

We tried the ftp'ing between the servers and are not getting good results there 
either.  In fact, we ran a wire directly from one nic to another and saw bad 
performance.  There must be something on the AIX side we are missing.

Ralph 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Kurt Beyers
Sent: Tuesday, May 02, 2006 7:28 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: archive hangs

Ralph,

It is best to ftp a few large files between the TSM server and client to 
evaluate the data throughput across the 1 Gbit LAN.

40 GB/hour is rather the order of magnitude for a dedicated 100 Mbit LAN, but 
tranferring a lot of small files will cause rather a lot of overhead. 

Best regards,
Kurt

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Levi, Ralph
Sent: dinsdag 2 mei 2006 13:22
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] archive hangs

Thanks Jacques.

About how much data can you push over the gig network between Tivoli and one 
client.  The best I ever do is about 40 GB an hour.

Ralph 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Jacques Van Den Berg
Sent: Tuesday, May 02, 2006 7:17 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: archive hangs

Hi,

My settings for udp (send & receive) are as follow (1GIG Network):
udp_sendspace=65536
udp_recvspace=65536

The rest of the settings are the same.

Jacques van den Berg
TSM / SAP Storage Administrator
Pick 'n Pay IT
Email   : jvandenberg AT pnp.co DOT za
Tel      : 021 - 658 1694
Fax     : 021 - 658 1699
Mobile  : 082 - 653 8164

 
Dis altyd lente in die hart van die mens wat God

en sy medemens liefhet (John Vianney).

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Levi, Ralph
Sent: Tuesday, May 02, 2006 1:02 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] archive hangs


In an attempt to tune our system (AIX 5.3, TSM 5.2.7) we changed the
following AIX parameters and now several archive jobs tend to just die
and hangout until they timeout.



sb_max = 2097152
tcp_sendspace = 262144
tcp_recvspace = 262144
udp_sendspace = 131072
udp_recvspace = 131072
rfc1323= 1


We made these changes trying get to better throughput on our gig
network.  (we are now working on 2 problems at once).  The gig nics are
set to auto_negotiate since AIX does not have a 1000/full setting.  The
network folks say everything is clean from their end.

I would like to resolve the hung condition first and then continue to
address the gig speed issues.  Does anyone have some ideas.  I can
remove the options I changed but on face value I believe they should be
set like this.

Any and all help is appreciated.

Have a nice day everyone.

Ralph


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