Re: Server Migration - AIX to HP
> We will be taking the 3494 with us using the dual-SCSI interfaces to cable > both systems for the transitional period. So my question is how do we > achieve this? The options seem to be to install the same TSM patch level on > both processors and then [Other options deleted] > * Start the HP as new and empty, and allow the AIX service to expire > after 90 days. This we know will work but 3494 capacity becomes an issue. > Archive data would have to be exported and imported, though. The more recent TSM levels provide for setting up an overflow area for an automated library. That is, they provide a way of keeping track of tapes ejected from the library and put on a manual rack. This might address the library capacity issue. You would still have a temporary spike in the demand for cartridges.
Re: Server Migration - AIX to HP
Hi
Moving cross platforms shouldn't be this much problem.
We've moved between NT/2000 and AIX using backup/restore procedure. I've
also moved between completely different AIX machines using this procedure.
No problems there.
However, I don't know how large your database is. But, it shouldn't take
more than approx. 4-6 hours to do this procedure on your AIX/HP box.
I don't know who you have been talking to within IBM, but the db
backup/restore procedure should be supported by both Tivoli and IBM.
However, it can be that your IBM guys isn't that keen on moving to an HP
box.
Regarding 3590 cartridges, they should be readable on all platforms, as it
is TSM that writes the data, not the OS. All you have to have is the TSM DB
to read the tapes.
If you could share the 3494 between the AIX and the HP box, this procedure
would be easy to test. You can do a test installation of the TSM server on
the HP box, and then restore the database from the AIX box to the HP box
using dsmserv restore command.
Best Regards
Daniel Sparrman
---
Daniel Sparrman
Exist i Stockholm AB
Bergkällavägen 31D
192 79 SOLLENTUNA
Växel: 08 - 754 98 00
Mobil: 070 - 399 27 51
"Smith, Bob"
cc:
Sent by: Subject: Server Migration - AIX to HP
"ADSM: Dist
Stor Manager"
<[EMAIL PROTECTED]
RIST.EDU>
2002-03-04
10:49
Please
respond to
"ADSM: Dist
Stor Manager"
Thank you to those who have responded - perhaps a little clarification is
needed from me as to why we are doing this. Our customer has 8 very large
HP-UX boxes being backed up by a a small 3-year old IBM RS/6000 with IBM
3494 library and 3590E drives. The RS/6000 needs upgrading - memory, RAID
disk, Gigabit LAN, CPU speed etc. etc., so a new machine is the most
effective way. But they have a spare HP-UX box so have requested we use
that
for TSM (it's got 8 CPUs, 8 Gb memory, EMC RAID disk etc. vs. 2 CPUs, 512
Mb
memory, SSA (non-RAID) disk on the RS/6000). Hence the plan to move from
AIX
to HP. Yes I would prefer a shiny new RS/6000 but the customer doesn't see
the need to shell out when he has a very good spare box that supports TSM.
We will be taking the 3494 with us using the dual-SCSI interfaces to cable
both systems for the transitional period. So my question is how do we
achieve this? The options seem to be to install the same TSM patch level on
both processors and then
* Quiesce the AIX, empty and delete disk pool volumes, run a BACKUP
DB
and then a RESTORE DB
* As above but shut down to do a DUMPDB and then a LOADDB.
* As above but do an UNLOADDB and then a LOADDB ( Database is 27 Gb,
43m versions - how long does this take?)
* Start the HP as new and empty, and allow the AIX service to expire
after 90 days. This we know will work but 3494 capacity becomes an issue.
Archive data would have to be exported and imported, though.
Export/Import of node data is not possible - we have 23 Tb of it and
customer doesn't expect an outage that long! IBM tell me export/import of
node data is the only supported method, which must imply 3590
Server Migration - AIX to HP
Thank you to those who have responded - perhaps a little clarification is needed from me as to why we are doing this. Our customer has 8 very large HP-UX boxes being backed up by a a small 3-year old IBM RS/6000 with IBM 3494 library and 3590E drives. The RS/6000 needs upgrading - memory, RAID disk, Gigabit LAN, CPU speed etc. etc., so a new machine is the most effective way. But they have a spare HP-UX box so have requested we use that for TSM (it's got 8 CPUs, 8 Gb memory, EMC RAID disk etc. vs. 2 CPUs, 512 Mb memory, SSA (non-RAID) disk on the RS/6000). Hence the plan to move from AIX to HP. Yes I would prefer a shiny new RS/6000 but the customer doesn't see the need to shell out when he has a very good spare box that supports TSM. We will be taking the 3494 with us using the dual-SCSI interfaces to cable both systems for the transitional period. So my question is how do we achieve this? The options seem to be to install the same TSM patch level on both processors and then * Quiesce the AIX, empty and delete disk pool volumes, run a BACKUP DB and then a RESTORE DB * As above but shut down to do a DUMPDB and then a LOADDB. * As above but do an UNLOADDB and then a LOADDB ( Database is 27 Gb, 43m versions - how long does this take?) * Start the HP as new and empty, and allow the AIX service to expire after 90 days. This we know will work but 3494 capacity becomes an issue. Archive data would have to be exported and imported, though. Export/Import of node data is not possible - we have 23 Tb of it and customer doesn't expect an outage that long! IBM tell me export/import of node data is the only supported method, which must imply 3590 tapes written on the AIX system must be readable on the HP-UX system. Anyone got any further thoughts? Many thanks
Re: Server Migration - AIX to HP
Corporate "parents" redefine the word "control freaks".
-Original Message-
From: Robin Sharpe [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 01, 2002 10:55 PM
To: [EMAIL PROTECTED]
Subject: Re: Server Migration - AIX to HP
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:[EMAIL PROTECTED]
cc:(bcc: Robin
Sharpe/WA/USR/SHG)
03/01/02 02:26 PMSubject:
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
[EMAIL PROTECTED]
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-UXor '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
> ELL.NET> To:[EMAIL PROTECTED]
> 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" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Friday, March 01, 2002 12:51 AM
>Subject: Server Migration - AIX to HP
>
>
>> Has
Re: Server Migration - AIX to HP
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:[EMAIL PROTECTED]
cc:(bcc: Robin Sharpe/WA/USR/SHG)
03/01/02 02:26 PMSubject:
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
[EMAIL PROTECTED]
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-UXor '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
> ELL.NET> To:[EMAIL PROTECTED]
> 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" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>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: [EMAIL PROTECTED] - EDS userid LZTZ3V
>
>
Re: Server Migration - AIX to HP
Yes, that was from Tivoli support, although if you push hard enough you
could probably get some help. But this is what they told me:
"You can try exporting the server from AIX and importing it on HP-UX. It
might work, but is not supported".
Maybe they meant a "full" import/export -- server and all nodes. And they
could have been misinterpreting something.
Here's another example of support misleading us: out NT group is testing
W2K and had some trouble rebuilding a server from bare metal... support
told them TSM does not support bare metal restore on Windows. What they
should have said (I think) is "TSM does have an automatic bare metal
restore for Windows". The NT guys started panicing... I directed them to
the books and help screens on the client, and they were able to figure out
how to do it.
Robin Sharpe
Berlex Labs
Richard Cowen
To:[EMAIL PROTECTED]
cc:(bcc: Robin Sharpe/WA/USR/SHG)
03/01/02 Subject:
02:17 PM Re: Server Migration - AIX to HP
Please
respond to
"ADSM: Dist
Stor Manager"
> -Original Message-
> From: Robin Sharpe [mailto:[EMAIL PROTECTED]]
> Sent: Friday, March 01, 2002 1:40 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Server Migration - AIX to HP
>...
> BTW, export/import isn't supported either, although it "may" work.
>...
Is this from a Support call?
The MVS,NT,AIX, and HPUX TSM Guides at least imply cross-platform import is
"supported":
Importing Data from Sequential Media Volumes
Before you import data to a new target server, you must:
1. Install TSM on the target server. This step includes defining disk space
for the databas and recovery log.
For information on installing TSM, see Quick Start.
2. Define server storage for the target server.
Because each server operating system handles devices differently, TSM does
not export
server storage definitions. Therefore, you must define initial server
storage for the target
server. TSM must at least be able to use a drive that is compatible with
the
export
media. This task can include defining libraries, drives, device classes,
storage pools, and
volumes. See the Administrator's Guide that applies to the target server.>
Re: Server Migration - AIX to HP
We just exported/imported a ton of stuff from W2K to AIX TSMSERVER with no
problems on Magstar Tape. The issue is the drivers between platforms may
not be recording the data the same way. Magstar, that is not a problem.
-Original Message-
From: Robin Sharpe [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 01, 2002 1:40 PM
To: [EMAIL PROTECTED]
Subject: Re: Server Migration - AIX to HP
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-UXor
'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
To:[EMAIL PROTECTED]
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" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
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: [EMAIL PROTECTED] - EDS userid LZTZ3V
Re: Server Migration - AIX to HP
> -Original Message- > From: Robin Sharpe [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 01, 2002 1:40 PM > To: [EMAIL PROTECTED] > Subject: Re: Server Migration - AIX to HP >... > BTW, export/import isn't supported either, although it "may" work. >... Is this from a Support call? The MVS,NT,AIX, and HPUX TSM Guides at least imply cross-platform import is "supported": Importing Data from Sequential Media Volumes Before you import data to a new target server, you must: 1. Install TSM on the target server. This step includes defining disk space for the databas and recovery log. For information on installing TSM, see Quick Start. 2. Define server storage for the target server. Because each server operating system handles devices differently, TSM does not export server storage definitions. Therefore, you must define initial server storage for the target server. TSM must at least be able to use a drive that is compatible with the export media. This task can include defining libraries, drives, device classes, storage pools, and volumes. See the Administrator's Guide that applies to the target server.>
Re: Server Migration - AIX to HP
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-UXor '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
To:[EMAIL PROTECTED]
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" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
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: [EMAIL PROTECTED] - EDS userid LZTZ3V
Re: Server Migration - AIX to HP
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" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> 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: [EMAIL PROTECTED] - EDS userid LZTZ3V
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: [EMAIL PROTECTED] - EDS userid LZTZ3V
