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A short presentation on storage architectures for cloud in particular for VDI applications.

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  1. 1. Storage Architectures for VDI Environments Vinay Rao 9/29/2011
  2. 2. Traditional Data center architectures <ul><li>Compute farms connected to storage via SANs. </li></ul><ul><li>Mid to high-end shared storage arrays with fiber channel or iSCSI. </li></ul><ul><li>NAS filers accessed via NFS/CIFS protocol. </li></ul><ul><li>Load balancers, cloud management platforms, etc. </li></ul><ul><li>Virtual machines sharing the FC or iSCSI HBA devices. </li></ul>
  3. 3. Challenges for VDI environment <ul><li>Data management of LUNs/mount points does not scale. </li></ul><ul><li>Hotspotting due to application and boot storms. </li></ul><ul><li>Virtual machine IO blending causes drop in performance from 30 to 50% </li></ul><ul><li>VDI needs shared storage infrastructure skyrocketing costs to 5-15$/GB. </li></ul><ul><li>Scaling to potentially peta bytes of data and millions of Virtual desktops. </li></ul>
  4. 4. Solutions to storage issues <ul><li>Golden master copy of boot images/application images on an SSD tier. </li></ul><ul><li>Efficient rapid snapshotting and cloning by using hypervisor services. </li></ul><ul><li>Abandoning SANs and NASs and using a Distributed file systems approach. </li></ul>
  5. 5. VM density of storage protocols
  6. 6. New architectures for cloud VDI <ul><li>Virsto One </li></ul><ul><ul><li>No SAN or NAS required. No IO blending. </li></ul></ul><ul><ul><li>Hypervisor Software only solution. </li></ul></ul><ul><ul><li>Redundant blocks across several nodes. </li></ul></ul><ul><ul><li>Storage VM on each server manages. </li></ul></ul><ul><ul><li>Snapshot/Cloning capability. </li></ul></ul>
  7. 7. New Architectures for Cloud VDI <ul><li>Nutanix </li></ul><ul><ul><li>No LUNs/Mount points/SANs/NFS filers </li></ul></ul><ul><ul><li>Appliance model, uses SSDs built-in. </li></ul></ul><ul><ul><li>Distribute the storage metadata for performance and HA properties. </li></ul></ul><ul><ul><li>Storage auto-tiering. </li></ul></ul>