In our case, it was a combination of company policy and $$$.  We have a
global contract with HP through our parent.
We were looking to expand our library (ATL P3000) because we had overflowed
it.  I looked into upgrading it to a P6000 (basically another P3000 bolted
on with a pass-through port), but the cost was pretty high.  next step was
to look at the HP 20/700 (really a STK L700)... which offers more slots
than the P6000 upgrade for quite a bit less cost.  Problem was, HP would
not support their lib on an IBM box.  So we went around and around with HP
& Tivoli on the support issue, and finally decided to get the 20/700 and a
new HP L2000 server... then we planned to move the RS6000/P3000 to another
location and set up server to server.   The migration problem has delayed
those plans, but we should get there eventually.

So far, The 20/700 has been OK, but there do seem to be some strange I/O
errors at times, and the lib's operator interface isn't as advanced as the
P3000.  The P3000's web interface only works on Solaris and NT, so we can't
use it.  The HP web interface is built into the lib, but it doesn't allow
you to move carts around.  Oh well.

 Robin Sharpe
Berlex Labs



                    "Thomas A. La Porte"
                    <[email protected]
                    WORKS.COM>           To:    ADSM-L AT VM.MARIST DOT EDU
                                         cc:    (bcc: Robin Sharpe/WA/USR/SHG)
                    03/01/02 02:26 PM    Subject:
                    Please respond to           Re: Server Migration - AIX to HP
                    "ADSM: Dist Stor
                    Manager"







Just out of curiosity for the several people who have mentioned
moving from AIX to HP/UX, what has been the driving motivation to
switch platforms? We've been completely satisfied with AD/TSM on
AIX for the past six years, in spite of having little to no AIX
expertise in house (our TSM servers are the only AIX boxes in our
environment). Just wondering what prompts the shift?

 -- Tom

Thomas A. La Porte
DreamWorks SKG
tlaporte AT anim.dreamworks DOT com

On Fri, 1 Mar 2002, Robin Sharpe wrote:

>Bob,
>
>Don't bother.  I can tell you from experience that it won't work, and
>Tivoli support will tell you it isn't supported.  BTW, export/import isn't
>supported either, although it "may" work.
>
>We are in the middle of a migration from AIX to HP (L2000 server).  Tried
>the same thing.   The problem is apparently in the way TSM records data on
>tape on AIX vs. on HP-UX.... TSM on HP-UX could not read the tape created
>on AIX.   I was able to export the database and import on HP-UX.  But,
like
>you, we have a lot of node data on AIX (about 60TB).  By my rough
>calculations, (using DLT7000 drives) it would have taken more than six
>months of exporting, 24x7, optimistically assuming a 5MB/sec throughput.
>
>What we are now doing is keeping our old TSM and library online until the
>"old" data expires.... which will be about a year.  Then we'll
>export/import any remaining archives.  Luckily for us, we have the
hardware
>to do this.
>
>Some other folks have suggested FTP'ing the database from AIX to
>HP-UX....or 'tar'ing it...  I didn't think of it, and now it's too late to
>try, since we've been backing up on HP for several months.  I also didn't
>try the unloaddb/loaddb,  but I suspect the same problem would exist.
>
>Good Luck
>Robin Sharpe
>Berlex Labs
>
>
>
>                    ARhoads
>                    <arhoads@PACB
>                    ELL.NET>      To:    ADSM-L AT VM.MARIST DOT EDU
>                                  cc:    (bcc: Robin Sharpe/WA/USR/SHG)
>                    03/01/02      Subject:
>                    08:32 AM             Re: Server Migration - AIX to HP
>                    Please
>                    respond to
>                    "ADSM: Dist
>                    Stor Manager"
>
>
>
>
>
>
>
>Bob,
>
>the issue of  'it won't work' doesn't preclude you from trying it!  It
>should work since the platforms are both UNIX (handling tape read/write
>sim.).
>
>Otherwise you'd unloaddb to a file and then move the file to the new
>platform -- maybe preferable anyway to re-optimize the database...
>
>Steffan
>----- Original Message -----
>From: "Smith, Bob" <bob.smith AT EDS DOT COM>
>To: <ADSM-L AT VM.MARIST DOT EDU>
>Sent: Friday, March 01, 2002 12:51 AM
>Subject: Server Migration - AIX to HP
>
>
>> Has anyone successfully moved a TSM server from one platform to another,
>> copying the database via BACKUP DB and RESTORE DB commands? We are
>looking
>> at moving from AIX (RS-6000) to HP (N-Class) in this way, but IBM are
>> suggesting that this won't work as the TSM database might be
>> platform-dependent. They suggest using export/import for the all the
>nodes,
>> but we have 23 Tb of backup data so that would be impossible. IBM 3494
>with
>> 3590E drives is used to hold the data.
>>
>> Thanks
>>
>> Bob Smith - Core Infrastructure EMEA
>> EDS UK c/o Rolls-Royce plc, Derby UK
>> tel: 01332 522029
>> email: bob.smith AT exgb01.exch.eds DOT com - EDS userid LZTZ3V
>
>