Hi Bill,

It's going to depend a lot on your network speed, some on the type of disk you 
are using for your databases, and maybe a little on the CPU speeds of your 
servers.

We have not yet migrated any of our production TSM instances, but we have been 
doing some dry-run performance tests.  On one instance having a 680GB database, 
we ran three tests, as follows:

Test 1:
 source (AIX) database on 15K
 target (Linux) database on SSD
 source server having 10Gbs ethernet
 target server having 1Gbs ethernet
 Elapsed time was 15 hours, 45 minutes

Test 2:
 source database on SSD
 target database on SSD
 source server having 10Gbs
 target server having 1Gbs
 Elapsed time was 12 hours, 32 minutes  - SSD helped some

Test 3:
 source and target databases both on SSD
 source and target servers both having 10Gbs
 Elapsed time was 6 hours, 20 minutes - quite a bit better due to the 10Gbs 
ethernet

Statistics & dry-runs were done by David Beardsley, here at Cornell.
..Paul

At 12:57 PM 7/29/2016, Brian G. Kunst wrote:
>We just did this back in May. It took roughly 4 hours to do our 580GB DB.
>
>--
>Brian Kunst
>Storage Administrator
>Large Scale Storage & Systems
>UW Information Technology
>
>> -----Original Message-----
>> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
>> Of
>> Bill Mansfield
>> Sent: Friday, July 29, 2016 8:43 AM
>> To: ADSM-L AT VM.MARIST DOT EDU
>> Subject: [ADSM-L] AIX to Linux migration performance
>>
>> Has anyone migrated a big TSM server from AIX to Linux using the
>> Extract/Insert capability in 7.1.5?  Have a 2.5TB DB to migrate, would
>> like some idea of how long it might take.
>>
>> Bill Mansfield


--
Paul Zarnowski                            Ph: 607-255-4757
Assistant Director for Storage Services   Fx: 607-255-8521
IT at Cornell / Infrastructure            Em: psz1 AT cornell DOT edu
719 Rhodes Hall, Ithaca, NY 14853-3801