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vSphere Storage Appliance (VSA)<br />Cormac Hogan<br />Technical Marketing<br />5th May 2011<br />
You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilienc...
Introduction (1 of 3)<br />In vSphere 5.0, VMware release a new storage appliance called VSA. <br />VSA is an acronym “vSp...
Introduction (2 of 3)<br />vSphere<br />vSphere<br />vSphere<br />vSphere Client<br />VSA<br />VSA<br />VSA<br />VSA Manag...
Introduction (3 of 3)<br />The NFS datastores exported from the VSA can now be used as shared storage on all of the ESXi s...
You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilienc...
Supported VSA Configurations<br />The vSphere Storage Appliance can be deployed in two configurations:<br />2 x ESXi 5.0 s...
vCenter Server<br />VSA Manager<br />VSA Cluster Service<br />Manage<br />Volume 2<br />(Replica)<br />VSA<br />Datastore ...
vCenter Server<br />VSA Manager<br />Manage<br />VSA<br />Datastore 2<br />VSA<br />Datastore 3<br />VSA<br />Datastore 1<...
Simplified UI for VSA Cluster Configuration<br />Once the VSA Manager installation has completed and the VSA manager plug-...
Simplified UI for VSA Cluster Configuration<br /> Datacenter Selection<br />Introduction<br />2<br />1<br />IP Address Ass...
Simplified UI for VSA Cluster Configuration<br />Ready to Install<br />Select Disk Format<br />6<br />5<br />
VSA Manager<br /> The VSA Manager helps an administrator perform the following tasks:<br />Deploy vSphere Storage Applianc...
You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilienc...
Resilience<br />Many storage arrays are a single point of failure (SPOF) in customer environments.<br />VSA is very resili...
vCenter Server<br />VSA Manager<br />VSA Cluster Service<br />Manage<br />Volume 2<br />(Replica)<br />Volume 1<br />(Repl...
You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilienc...
Maintenance Mode<br />The are two types of Maintenance Mode:<br />Whole VSA Cluster Maintenance Mode<br />Single VSA Node ...
You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilienc...
VSA Cluster Node/Member Replacement<br />Due to various reasons, a VSA cluster member might stop responding.<br />If a VSA...
You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilienc...
VSA Cluster Recovery<br />In the event of a vCenter server loss, the VSA cluster can be recovered with a vanilla install o...
You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilienc...
vSphere Storage Appliance: Summary<br />Simple manageability<br />Installed, configure and managed via vCenter<br />Abstra...
Questions?<br />
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VMware vSphere Storage Appliance (VSA) - Technical Presentation,Almacenamiento,SAN,NAS,NFS,Datastore,vCenter5,vCenter,Storage Cluster

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VMware vSphere Storage Appliance (VSA) - Technical Presentation,Almacenamiento,SAN,NAS,NFS,Datastore,vCenter5,vCenter,Storage Cluster

  1. 1. vSphere Storage Appliance (VSA)<br />Cormac Hogan<br />Technical Marketing<br />5th May 2011<br />
  2. 2. You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilience<br />Maintenance Mode<br />Replacing a VSA Node<br />Recovering a VSA Cluster<br />Summary<br />
  3. 3. Introduction (1 of 3)<br />In vSphere 5.0, VMware release a new storage appliance called VSA. <br />VSA is an acronym “vSphere Storage Appliance”.<br />This appliance is aimed at our SMB (Small-Medium Business) customers who may not be in a position to purchase a SAN or NAS array for their virtual infrastructure, and therefore do not have shared storage.<br />It is the SMB market that we wish to go after with this product – our aim to move these customers from Essentials to Essentials+.<br />Without access to a SAN or NAS array, this excludes these SMB customers from many of the top features which are available in a VMware Virtual Infrastructure, such as vSphere HA & vMotion.<br />Customers who decide to deploy a VSA can now benefit from many additional vSphere features without having to purchase a SAN or NAS device to provide them with shared storage.<br />
  4. 4. Introduction (2 of 3)<br />vSphere<br />vSphere<br />vSphere<br />vSphere Client<br />VSA<br />VSA<br />VSA<br />VSA Manager <br />NFS<br />NFS<br />NFS<br />Each ESXi server has a VSA deployed to it as a Virtual Machine.<br />The appliances use the available space on the local disk(s) of the ESXi servers & present one replicated NFS volume per ESXi server. This replication of storage makes the VSA very resilient to failures.<br />
  5. 5. Introduction (3 of 3)<br />The NFS datastores exported from the VSA can now be used as shared storage on all of the ESXi servers in the same datacenter.<br />The VSA creates shared storage out of local storage for use by a specific set of hosts.<br />This means that vSphere HA & vMotion can now be made available on low-end (SMB) configurations, without external SAN or NAS servers.<br />There is a CAPEX saving achieved by SMB customers as there is no longer a need to purchase a dedicated SAN or NAS devices to achieve shared storage.<br />There is also an OPEX saving as the management of the VSA may be done by the vSphere Administrator and there is no need for dedicated SAN skills to manage the appliances. <br />The installation & configure is also much simpler than that of a physical storage array or other storage appliances.<br />
  6. 6. You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilience<br />Maintenance Mode<br />Replacing a VSA Node<br />Recovering a VSA Cluster<br />Summary<br />
  7. 7. Supported VSA Configurations<br />The vSphere Storage Appliance can be deployed in two configurations:<br />2 x ESXi 5.0 servers configuration<br />Deploys 2 vSphere Storage Appliances, one per ESXi server & a VSA Cluster Service on the vCenter server.<br />3 x ESXi 5.0 servers configuration<br />Deploys 3 vSphere Storage Appliances, once per ESXi server.<br /> Each of the servers must contain a new/vanilla install of ESXi 5.0. <br />During the configuration, the user selects a datacenter. The user is then presented with a list of ESXi servers in that datacenter.<br />The installer will check the compatibility of each of these physical hosts to make sure they are suitable for VSA deployment.<br />The user must then select which compatible ESXi servers should participate in the VSA cluster, i.e. which servers will host VSA nodes.<br />It then ‘creates’ the storage cluster by aggregating and virtualizing each server’s local storage to present a logical pool of shared storage.<br />
  8. 8. vCenter Server<br />VSA Manager<br />VSA Cluster Service<br />Manage<br />Volume 2<br />(Replica)<br />VSA<br />Datastore 1<br />Volume 1<br />(Replica)<br />VSA <br />Datastore 2<br />Volume 2<br />Volume 1<br />ESXi-1<br />ESXi-2<br />VSA<br />VSA<br />VSA cluster with 2 members<br />
  9. 9. vCenter Server<br />VSA Manager<br />Manage<br />VSA<br />Datastore 2<br />VSA<br />Datastore 3<br />VSA<br />Datastore 1<br />Volume 3<br />(Replica)<br />Volume 2<br />(Replica)<br />Volume 1<br />(Replica)<br />Volume 3<br />Volume 2<br />Volume 1<br />ESXi-3<br />ESXi-2<br />ESXi-1<br />VSA<br />VSA<br />VSA<br />VSA cluster with 3 members<br />
  10. 10. Simplified UI for VSA Cluster Configuration<br />Once the VSA Manager installation has completed and the VSA manager plug-in is enabled in vCenter, select the datacenter in the vCenter inventory and select the VSA Manager tab. The following is displayed:<br />
  11. 11. Simplified UI for VSA Cluster Configuration<br /> Datacenter Selection<br />Introduction<br />2<br />1<br />IP Address Assignment<br /> ESXi host Selection<br />4<br />3<br />
  12. 12. Simplified UI for VSA Cluster Configuration<br />Ready to Install<br />Select Disk Format<br />6<br />5<br />
  13. 13. VSA Manager<br /> The VSA Manager helps an administrator perform the following tasks:<br />Deploy vSphere Storage Appliance instances onto ESXi hosts to create a VSA cluster<br />Automatically mount the NFS volumes that the each vSphere Storage Appliance exports as datastores to the ESXi hosts.<br />Monitor, maintain, and troubleshoot a VSA cluster<br />
  14. 14. You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilience<br />Maintenance Mode<br />Replacing a VSA Node<br />Recovering a VSA Cluster<br />Summary<br />
  15. 15. Resilience<br />Many storage arrays are a single point of failure (SPOF) in customer environments.<br />VSA is very resilient to failures.<br />If a node fails in the VSA cluster, another node will seamlessly take over the role of presenting its NFS datastore.<br />The NFS datastore that was being presented from the failed node will now be presented from the node that holds it’s replica (mirror copy).<br />The new node will use the same NFS server IP address that the failed node was using for presentation, so that any VMs that reside on that NFS datastore will not be affected by the failover.<br />
  16. 16. vCenter Server<br />VSA Manager<br />VSA Cluster Service<br />Manage<br />Volume 2<br />(Replica)<br />Volume 1<br />(Replica)<br />VSA <br />Datastore 2<br />VSA<br />Datastore 1<br />Volume 2<br />Volume 1<br />ESXi-1<br />ESXi-2<br />VSA<br />VSA<br />Failover in a VSA cluster with 2 hosts<br />
  17. 17. You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilience<br />Maintenance Mode<br />Replacing a VSA Node<br />Recovering a VSA Cluster<br />Summary<br />
  18. 18. Maintenance Mode<br />The are two types of Maintenance Mode:<br />Whole VSA Cluster Maintenance Mode<br />Single VSA Node Maintenance Mode<br />A user can put a particular VSA node into maintenance mode in order to reconfigure the VSA in some way, e.g. rolling upgrade.<br />Since only one VSA is being taken offline, the storage volumes being supplied by the storage cluster will remain online, and there is no need to migrate any VMs that are running guest operating systems using that storage. <br />This does mean however that at least 2 volumes will be degraded with the loss of one VSA.<br />
  19. 19. You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilience<br />Maintenance Mode<br />Replacing a VSA Node<br />Recovering a VSA Cluster<br />Summary<br />
  20. 20. VSA Cluster Node/Member Replacement<br />Due to various reasons, a VSA cluster member might stop responding.<br />If a VSA cluster member stops responding or powers off, its status changes to Offline in the VSA Manager tab.<br />Different reasons might contribute to the Offline status.<br />If an admin cannot bring the VSA Cluster member back online by resetting it, another option available to the admin is to replace the VSA cluster member.<br />
  21. 21. You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilience<br />Maintenance Mode<br />Replacing a VSA Node<br />Recovering a VSA Cluster<br />Summary<br />
  22. 22. VSA Cluster Recovery<br />In the event of a vCenter server loss, the VSA cluster can be recovered with a vanilla install of vCenter server if a customer does not have a good backup. There must be no configuration changes to the ESXi servers or the VSA cluster members during the vCenter server outage.<br />The admin will have to re-install the VSA plugin. When vSphere Client is launched and the VSA tab is selected, it will contain two options (the same options visible during the initial install). In this case the admin can choose to Recover the VSA cluster.<br />
  23. 23. You Are Here<br />vSphere Storage Appliance<br />Introduction<br />Installation & Configuration<br />VSA Cluster Resilience<br />Maintenance Mode<br />Replacing a VSA Node<br />Recovering a VSA Cluster<br />Summary<br />
  24. 24. vSphere Storage Appliance: Summary<br />Simple manageability<br />Installed, configure and managed via vCenter<br />Abstraction From Underlying Hardware<br />Delivers <br />High availability<br />Resilient to server failures<br />Highly available during disk (spindle) failure<br />Provides Storage framework for vMotion, HA and DRS<br />Creates Shared Storage<br />Pools server disk capacity to form shared storage<br />Leverages vSphere Thin provisioning for space utilization<br />Enables storage scalability<br />
  25. 25. Questions?<br />

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