Hi, is there any storage I/O cache buffering done by ESXi host itself?
Is it anywhere explained in the documentation?
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tom
No,the Hypervisor does not do any caching. From http://kb.vmware.com/kb/1008542
VMware ESX acknowledges a write or read to a guest operating system only after that write or read is acknowledged by the hardware controller to ESX. Applications running inside virtual machines on ESX are afforded the same crash consistency guarantees as applications running on physical machines or physical disk controllers.
André
No,the Hypervisor does not do any caching. From http://kb.vmware.com/kb/1008542
VMware ESX acknowledges a write or read to a guest operating system only after that write or read is acknowledged by the hardware controller to ESX. Applications running inside virtual machines on ESX are afforded the same crash consistency guarantees as applications running on physical machines or physical disk controllers.
André