AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
In early versions of ESX the virtualization overhead associated with deploying virtual disks (VMDK files) was much higher than it is today and why it was considered a best practice to place Exchange data files on physical mode raw-device mappings (RDM). RDMs can be Fibre Channel or iSCSI attached. The RDM file contains metadata used to manage and redirect disk access to the physical device. Raw-device mappings (RDM) – RDM is a mapping file in a VMFS volume that acts as a proxy for a raw physical device, sometimes called a pass-thru disk.VMFS volumes can be Fibre Channel or iSCSI attached. VMFS offers high I/O capabilities for virtual machines and is optimized for large VMDK files. VMFS based virtual disk (VMDK) – VMFS is a high performance, clustered file system that allows concurrent access by multiple hosts to files on a shared volume.
0 Comments
Read More
Leave a Reply. |