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How does EV 9 write to disk: sequentially, random or both?

Leo_
Level 5

From a disk I/O perspective how does EV 9 write to disks? I believe logs are written sequentially, but is vault data written sequentially or random?

Can I configure how EV writes to disk or is it hard-coded during setup? Is this even an EV question?

 

Thank you

1 ACCEPTED SOLUTION

Accepted Solutions

MichelZ
Level 6
Partner Accredited Certified

It's probably a mixture of both. I guess the saveset files are written sequentially each when you just have 1 storage thread. But as it is a multithreaded application, it writes many files in parallel, so in effect the drives have to do seeks in between and you're more on a random pattern then for the drives.

Just a thought.

 


cloudficient - EV Migration, creators of EVComplete.

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5 REPLIES 5

JesusWept3
Level 6
Partner Accredited Certified

Honestly I'm not entirely sure, I don't believe its sequential, one thing I do know is that there is no way to configure it

https://www.linkedin.com/in/alex-allen-turl-07370146

MichelZ
Level 6
Partner Accredited Certified

It's probably a mixture of both. I guess the saveset files are written sequentially each when you just have 1 storage thread. But as it is a multithreaded application, it writes many files in parallel, so in effect the drives have to do seeks in between and you're more on a random pattern then for the drives.

Just a thought.

 


cloudficient - EV Migration, creators of EVComplete.

Leo_
Level 5

good enough for me :) thank you.

Rob_Wilcox1
Level 6
Partner

Leo -> what was the reason for asking?

Working for cloudficient.com

Leo_
Level 5

a question from my manager