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Perfect, I figured that was the case but wanted to make sure I had it right. &nbsp;Thank you!
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Perfect, I figured that was the case but wanted to make sure I had it right.  Thank you!

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OK, here me out on this.<br />
<br />
We're starting to use our Citrix PVS infrastructure more at my workplace. &nbsp;I understand it well enough - targets, write caching, streaming vDisks, etc. &nbsp;But I'm unclear on one point and the Citrix documentation doesn't clear it up for me.<br />
<br />
When a target boots, the PVS server loads the vDisk contents into RAM (I'm told). &nbsp;So, when the target needs to read from the OS vDisk, it is receiving the data it needs out of the RAM of the PVS server. &nbsp;But, that doesn't quite make sense to me, because our average vDisk is around 45 GB, and it doesn't appear that our PVS server is caching 45 GB of data in RAM. &nbsp;It would also mean that the vDisk store could drop off at any point after the target booted and it wouldn't matter (though I find that hard to believe).<br />
<br />
So, how does this really work? &nbsp;Does the PVS server continually draw in data from the vDisk into RAM and keep it there incrementally? &nbsp;Or does it really load the whole vDisk up the first time a target needs it?<br />
<br />
Thanks!<br />
Matt
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OK, here me out on this.

We're starting to use our Citrix PVS infrastructure more at my workplace.  I understand it well enough - targets, write caching, streaming vDisks, etc.  But I'm unclear on one point and the Citrix documentation doesn't clear it up for me.

When a target boots, the PVS server loads the vDisk contents into RAM (I'm told).  So, when the target needs to read from the OS vDisk, it is receiving the data it needs out of the RAM of the PVS server.  But, that doesn't quite make sense to me, because our average vDisk is around 45 GB, and it doesn't appear that our PVS server is caching 45 GB of data in RAM.  It would also mean that the vDisk store could drop off at any point after the target booted and it wouldn't matter (though I find that hard to believe).

So, how does this really work?  Does the PVS server continually draw in data from the vDisk into RAM and keep it there incrementally?  Or does it really load the whole vDisk up the first time a target needs it?

Thanks!
Matt

In Citrix PVS, where do new reads come from?

Citrix is the synonym for the virtualization and application infrastructure systems developed by the company of the same name. Main areas are application virtualization, Software-As-A-Service (SaaS), cloud-computing and networking. The two most well-known are Citrix XenApp or Citrix CloudPlatform.

Citrix

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.

Storage

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.