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Device Types

https://forums.starwindsoftware.com/viewtopic.php?f=5&t=2253

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Device Types

Posted: Fri Oct 22, 2010 3:16 pm
by jnowotny
HI,

What are the drawbacks, if any, with using thin provisioning? Along those lines when is it best to use a .img device instead of a .ibv?

Thanks...Jim

Re: Device Types

Posted: Mon Oct 25, 2010 8:47 pm
by anton (staff)
Performance. Nothing comes and goes for free. So CDP housekeeping eats CPU cycles and bandwidth. Flat IMG is going to be 20-25% faster compared to IBV (using the same hardware). Mostly b/c CDP adds too much latency compared to raw disk I/O used with Disk Bridge and Image File.
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