O'Reilly logo

Optimizing Citrix® XenDesktop® for High Performance by Craig Thomas Ellrod

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Storage virtualization

There are a lot of moving parts in storage virtualization. Storage systems either provide block or file storage. Block storage typically uses iSCSI or FCoE while file storage typically uses NFS or CIFS/SMB. As virtualization abstracts the underlying hardware, so too does storage virtualization abstract the physical storage resources. Virtualization attempts to present the virtual machine with storage resources and then does the emulation or mapping to the actual physical storage location. The mapping of virtual to physical storage is maintained in a mapping table called meta-data.

The hypervisor uses the meta-data to map I/O requests from the logical location on the virtual disk into I/O requests on the physical disk. Storage ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required