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Odd or Even Striping

 
Vishu
Trusted Contributor

Odd or Even Striping

Hi Gurus,

One query, I would like to make a volume in HP-UX for database. But i am confused in striping stuff now. Please help in below queries:

1) is ODD striping (3-way) is good or Even Striping (4-way)?
2) What is the difference mainly between these two. Which provide better I/O performance?

Thanks
Vishu
4 REPLIES 4
Torsten.
Acclaimed Contributor

Re: Odd or Even Striping

I would say this depends on the hardware used.

Do you have any kind of disk array or just plain disks?

Do you want to mirror?

If yes, what is your OS version?

Hope this helps!
Regards
Torsten.

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Vishu
Trusted Contributor

Re: Odd or Even Striping

Hi Torsten,

Model is rp4440 and OS version is 11.11. I have XP array attached.

Well, if asked in general terms, which is the best striping between them. should we go for 3-way striped or 4-way normally and why?

Torsten.
Acclaimed Contributor

Re: Odd or Even Striping

Now it depends on how the XP is configured and how many LUNs (or LUSE) you did present to the server.


The XP can do likely much better striping than you can force it from the server side.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

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Torsten.
Acclaimed Contributor

Re: Odd or Even Striping

You can do so many performance related task on your XP - you should discuss this with your HP consultant.


However, in most cases your poor little server itself will be the bottleneck, regardless what you do.
In simple words - if you write something to the XP, the array will cache the data and say "OK, done" before writing a single bit. All in cache.



As said, discuss this with your HP representative.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

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