MaxDB and virtualization

Hi,
I would like to know if the community releases of MaxDB can run in a VMware Windows guest.
I had access to SAP Note 1142243 that mention that this is the case as of version 7.6.04.07.
I don't quite understand the hierarchy of MaxDB releases, but I read somewhere that the third number is more like a feature number than a release order.
So what about 7.6.3.x and 7.6.5.x ?
Thanks,
Guillaume

Hi Guillaume,
basically you may run also a 7.6.3.x MaxDB in a VM host.
I did that e.g. with Parallels on Mac OS X as host with Windows XP and Fedora 8 as guest os and had no issues.
Anyhow, the official supported versions have to be 7.6.4.x or higher - so 7.6.5.x from the SDN Download will be perfectly supported with VM scenarios.
Concerning the version string, this is the explanation from note "820824 - FAQ: MaxDB / SAP liveCache technology"
4. How can I interpret the MaxDB version string?
Importance for Version 7.5 or lower, for example kernel version 7.5:
7.5.0 BUILD 026-123-094-430
Major Number: 7
Minor Number: 5
Correction Level: 0
Build Number: 026
Support Information: 123-094-430
The interpretation of the MaxDB/liveCache version string changes with MaxDB Version 7.6.
Importance for Version 7.6 or higher, for example kernel version 7.6:
7.6.01 BUILD 020-123-115-206
Major Number: 7
Minor Number: 6
Support Package: 01.
Patch Level:020 (Build Number)
Support Information: 123-115-206
As of Version 7.6, a model was introduced with Support Packages and patch levels.
Support Packages:
- are created on a quarterly basis (approximately)
- in addition to the error corrections, Support Packages also include new functions (change requests).
Patch levels:
- are created more often than Support Packages and according to requirements (error situation),
- only high priority errors are corrected,
- corrections for delivered versions always result in a new patch level number.
Best regards,
Lars

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Hello Kumar,
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SAP, Itanium, Linux and virtualization ...

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ZP.

>
Markus Doehr wrote:
> All other vendors (Bull, Unisys, Dell, IBM...) abandoned IA64 because it's too expensive (too few numbers of them) and too slow; the cost/performance ration is miserable, the x86 32bit compatibility mode is much slower than expected. You have to spend a lot of money for an e. g. 4-way box; for the same money you can buy an even more powerful x86_64 system or two of them.
> Markus
I ment, not just hardware vendors (Oracle, Microsoft, SAP, ...) - IBM had the most performant system based on SAPS and benchmarks for long time (AFAIK, if it didn't change in the mean time, Oracle also made a competition, I don't know if anyone took the claim), but it had even worse cost/performance ratio than HP Integrity. If you want high end performance, Itanium can give you solid single-threaded horse power that x86 couldn't offer (again, AFAIK), and this is very important for databases and some business systems - it is not always about parallelization and number of concurrent users per system.
>
Markus Doehr wrote:
> Itanium is due to its design best suited for technical/scientifical (floating point) processing, not that much for integer processing (what SAP basically does - including the databases) or for running virtual machines (ABAP/Java). Because of the nature of it being an EPIC processor all the optimization logic must be put into the compiler. I guess, the open source community will not be able (just due to the lack of manpower and knowledge) to make gcc as good as the HP-UX aCC compilers.
>
> We have and had several Linux/IA64 boxes which were replaced by x86_64 (mainly AMD). For half of the price you get at least the double throughput; IMO there's no more justification for preferring iA64 over x86_64 any more.
> Markus
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Database migration to MAXDB and Performance problem during R3load import

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Now I am importing into MAXDB. But the import is running very slow (more than 72 hrs).
Details of import process as per below.
We have been using distribution monitor to import in to target system with maxdb database 7.7 release. We are using three parallel application servers to import and with distributed R3load processes on each application servers with 8 CPU.
Database System is configured with 8CPU(single core) and 32 GB physical RAM. MAXDB Cache size for DB instance is allocated with 24GB. As per SAP recommendation We are running R3load process with parallel 16 CPU processes. Still import is going too slow with more that 72 hrs. (Not acceptable).
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Hello,
description of parameter:
MaxTempFilesPerIndexCreation(from version 7.7.0.3)
Number of temporary result files in the case of parallel indexing
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[http://wiki.eclipse.org/EclipseLink/Development/DatabasePlatform/MaxDBPlatform]
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> Do you have Content Server 6.40 ?
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> I recommend to go with 1 option.
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==> This is really something for the J2EE forum ...!
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Maxdb and datafiles

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Hany

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[http://www.gcn.com/blogs/tech/40201.html]
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Hi,
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