Re: Create index performance issue in virtual environment
The storage used in the "Physical" system is EMC VNX.The linux IO scheduler used is cfq and noop for Tintri. Thanks
View ArticleRe: Create index performance issue in virtual environment
> The storage used in the "Physical" system is EMC VNX. EMC is SAN which is usually shared - unless you have your own dedicated SAN. The performance of these machines will vary on a lot of factors....
View ArticleRe: Create index performance issue in virtual environment
Wellll....first of all, you should *NEVER* use any other io scheduler in Linux other than noop for any DBMS device - doesn't matter which DBMS. So that could be part of the problem. The other...
View ArticleRe: Create index performance issue in virtual environment
Thanks for both replies.I tried to do the select top 500.000 but I'm difficulties, I will ty later. Regarding the IO scheduler, the configuration was set to noop.I just did a test with cfq because that...
View ArticleRe: Create index performance issue in virtual environment
One thing you might want to look into is the SAN caching. This is what helps EMC writes (and most SANs). Over the years, EMC has kind of learned some tricks about caching writes that have...
View ArticleDeveloper edition for IBM AIX
Hello people, When I try to download the Developer edition of Sybase ASE, I can only download the Windows or the Linux version. I thought that a developer edition was available for all supported...
View ArticleRe: How is SAP ASE doing?
> We started to look at HANA but after finding it has a different dialect of SQL we stopped.HANA is a great product for Analytics, however it is not a good choice for OLTP applications due to the...
View ArticleRAMDisk and Tempdb Cahe for Tempdb
Hi Community I have OS AIX 7.1 with ASE 15.5 and set up RAMDisk for tempdb, but I don´t know if is necessary drop or leave the tempdb cache. What is the better configuration? Thanks. Cristian Lopez.
View ArticleRe: RAMDisk and Tempdb Cahe for Tempdb
Hi.I think you should leave tempdb cache.Cache main advantage is the ability to define large (e.g.g. 16k for 2k server) I/O pool which can reduce number of memory reads/writes.Regards-- Marcin
View ArticleRe: RAMDisk and Tempdb Cahe for Tempdb
Hi, Marcin is right. Beter is to have bigger cache than use memory space for ramdisk.Even if you use ramdisk for tempdb still ASE thinks that devices are located on hard disk and still ASE needs a...
View ArticleASE HA support
Since certification.sybase.com was gone. Is there any new place I can check the certification of ASE HA option? Regards,Chris
View ArticleRe: How is SAP ASE doing?
We're both OLTP and Analytics - I work in Financial sector and all the system I've worked are a mix of both OLTP and Analytics. Lots of the applications in the Financial sector are like this - which...
View ArticleRe: RAMDisk and Tempdb Cahe for Tempdb
I agree ... I benchmarked tempdb with different configurations - tempdb on disk with a good cache exclusively allocated to it seems as good as in-memory (in our configuration). I wouldn't assume...
View ArticleRe: RAMDisk and Tempdb Cahe for Tempdb
A good doc to read is http://scn.sap.com/docs/DOC-35088 ....check out page 150+ wrt this topic. Doc is a tad old (e.g. 15.5)....but still germane on this subject
View ArticleRe: ASE HA support
Mr Bone, All the links are migrated to the SAP Portal. However I found one ASE ceritification under the below link but not for HA Option, anyway let me check....
View ArticleRe: getting error after installing sybase ase157 cannot execute binary file
Error after installation/opt/sybase/ASE-15_0/bin/srvbuildres: /opt/sybase/ASE-15_0/bin/srvbuildres: cannot execute binary file file i have downloaded ase157_linuxx86-64.tgz
View ArticleRe: getting error after installing sybase ase157 cannot execute binary file
What hardware are you running this on (i.e. what type of cpu chip)?
View ArticleRe: getting error after installing sybase ase157 cannot execute binary file
I am installing sybase on vmware server 32 bit operating system Linux localhost.localdomain 2.6.32-431.el6.i686 #1 SMP Fri Nov 22 00:26:36 UTC 2013 i686 i686 i386 GNU/Linux CentOS release 6.5...
View ArticleRe: ASE HA support
I mean the certification report like: IBM HACMP verion ?? support ASE HA option HP MCServicesGuard version ?? support ASE HA optionRHEL Veritas verson ?? support ASE HA optionSuse..Windows......
View ArticleRe: getting error after installing sybase ase157 cannot execute binary file
Hi Santosh, ASE 15.7 versions are not support 32bit OS any more.They only support 64bit OS.So you have to install 64bit Linux on the VM. Thanks,jseo
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