L3. VirtualizedDC-Storage - Virtualized Data Center Storage...

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This Set Of Slides Is Based On The Emc Course “Cloud Infrastructure And Services” Dr Alan Yeung, Department of Electronic Engineering, City University of Hong Kong Virtualized Data Center - Storage
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Outline Storage Virtualization Overview Virtual Provisioning Automated Storage Tiering 2
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Storage Virtualization Overview 3
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Storage Virtualization Logical to physical storage mapping is performed by virtualization layer Virtualization layer abstracts the identity of physical storage devices ! Creates a storage pool from multiple, heterogeneous storage arrays Virtual volumes are created from the storage pools and are assigned to the compute system It is the process of masking the underlying complexity of physical storage resources and presenting the logical view of these resources to compute systems. Storage virtualization 4
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Benefits of Storage Virtualization Adds or removes storage without any downtime Increases storage utilization thereby reducing Total Cost of Ownership (TCO) Provides non-disruptive data migration between storage devices Supports heterogeneous, multi-vendor storage platforms Simplifies storage management 5
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VMs are stored as set of files on storage space available to hypervisor ‘Virtual disk file’ represents a virtual disk used by a VM to store its data Size of virtual disk file represents storage space allocated to virtual disk VMs remain unaware of ! Total space available to the hypervisor ! Underlying storage technologies Storage for Virtual Machines VM 4 IP Network NAS iSCSI FC Storage FC SAN VM 3 Compute 1 Compute 2 VMFS NFS Virtual disk file Virtual disk file Virtual disk file Virtual disk file 6
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Hypervisor’s native file system to manage VM files Cluster File System !
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  • Spring '16
  • Computer data storage, Solid-state drive, Storage virtualization, Thin LUNs

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