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i/o read/write caching

 
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MattBoB



Joined: 08 Nov 2007
Posts: 3

PostPosted: T    Post subject: i/o read/write caching

I am using licensed version of starwind professional and was wondering about the RAM caching. Is this enabled by default? Do I have to select the "Use file system buffering" option to enable it?
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anton (staff)
Site Admin


Joined: 18 Jun 2004
Posts: 2170
Location: British Virgin Islands

PostPosted: T    Post subject: Re: i/o read/write caching

Yes, you need to check this box to enable extensive RAM caching. However it's not recommended ATM as our latest test show it does provide benefits only to a very small set of the software. So for now (until version 3.5.1) just keep the things AS IS.

MattBoB wrote:
I am using licensed version of starwind professional and was wondering about the RAM caching. Is this enabled by default? Do I have to select the "Use file system buffering" option to enable it?

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Regards,
Anton Kolomyeytsev

Rocket Division Software
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MattBoB



Joined: 08 Nov 2007
Posts: 3

PostPosted: F    Post subject:

OK, thanks for the prompt reply.

Could I put in a request for future versions to have an option to allow read only RAM caching aswell. I am nervouse of using RAM to cache writes as this could result in data corruption should the server starwind is running on crash for any reason. Having a UPS only covers power outages. My experience of starwind so far is its rock solid stable but still better to safe than sorry in this game!
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anton (staff)
Site Admin


Joined: 18 Jun 2004
Posts: 2170
Location: British Virgin Islands

PostPosted: F    Post subject:

You're not the only one complaining about this! So we'll move away from Cache Manager owned buffers to own caching in the next versions. With "write-thru", "write-back" and "read-ahead" caching only.

MattBoB wrote:
OK, thanks for the prompt reply.

Could I put in a request for future versions to have an option to allow read only RAM caching aswell. I am nervouse of using RAM to cache writes as this could result in data corruption should the server starwind is running on crash for any reason. Having a UPS only covers power outages. My experience of starwind so far is its rock solid stable but still better to safe than sorry in this game!

_________________
Regards,
Anton Kolomyeytsev

Rocket Division Software
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MattBoB



Joined: 08 Nov 2007
Posts: 3

PostPosted: W    Post subject: update

I notice verwsion 3.5.1 is now available, but no mention of any changes to caching. Are there any? Should I consider turning it on now?
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bohdan (staff)



Joined: 23 May 2007
Posts: 47

PostPosted: W    Post subject:

Hi. We planned to include this feature in 3.5.1. But it hasn't been finished.
We are still working on it.
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