Data Resiliency Levels The following table shows the level of data resiliency (simultaneous failure) provided for the following combinations of replication factor, minimum number of nodes, and minimum number of blocks. Replication Factor Minimum Number of Nodes Minimum Number of Blocks Data Resiliency 2 3 1 1 node or 1 disk failure 2 3 3…
What is the different between Redundancy Factor and Replication Factor? Redundancy Factor (aka FT – Fault Tolerance) in the simplest terms, is the number of components that a Nutanix cluster can withstand at any time +1. These components include disks, NIC’s, and nodes. For example, in a two block environment and the default Redundancy Factor…
Acropolis Block Services Acropolis Block Services can support use cases including but not limited to: iSCSI for Microsoft Exchange Server. ABS enables Microsoft Exchange Server environments to use iSCSI as the primary storage protocol. Shared storage for Windows Server Failover Clustering (WSFC). ABS supports SCSI-3 persistent reservations for shared storage-based Windows clusters, commonly used with…
Preparations Ensure each cluster has a minimum configuration of 4 vCPUs and 12 GiB of memory available on each host. Ensure you have configured or defined internal and external networks. An Active Directory, Domain Name Server, and a Network Time Protocol Server. You need Active Directory administrator credentials, enterprise administrator credentials, and at least domain…
Requirements and Limitations Ensure that ports 3260 and 3205 are open on any clients accessing the cluster where Acropolis Block Services is enabled. You must configure an external data services IP address in Cluster Details available from the Prism web console. Synchronous Replication or Metro Availability are not currently supported for volume groups. Linux guest VM clustering…
Acropolis Block Services (ABS) Exposes backend DSF to external consumers via iSCSI Use Cases: Oracle RAC MSCS Containers Bare-metal Exchange on vSphere Constructs: Data Services IP: Cluster Wide VIP for iSCSI logins Volume Group: iSCSI target/group of disk devices Disks: Devices in Volume Group Attachment: Permissions for IQN access Backend = VG’s disk is just…
Windows VM Migration Prerequisites On the source hypervisor, power off all the VMs that you want to migrate. Ensure that the source VMs do not have any hypervisor snapshots associated with them. (Optional) Clone any VMs that you want to preserve. (Optional) Create a storage container on the AHV cluster. (For ESXi source environments) Windows…
Supported Source Environments You can migrate VMs from the following source hypervisors to AHV: VMware ESXi Microsoft Hyper-V Unified Extensible Firmware Interface (UEFI) Support Information In the current AOS and AHV releases, the UEFI implementation is limited. The following table describes the level of support available for various usage scenarios: Scenario Support Level Generation 2…