What is Nutanix deduplication?
Deduplication reduces space usage by consolidating duplicate data blocks on Nutanix storage. You can enable either cache deduplication only or both cache and capacity deduplication on a storage container.
What is compression Nutanix?
Compression can save physical storage space and improve I/O bandwidth and memory usage—which may have a positive impact on overall system performance. The delay time between write and compression is configurable, and Nutanix recommends a delay of 60 minutes. Inline compression. Data is compressed as it is written.
What is inline compression Nutanix?
Compression is one of the key features of the Nutanix Capacity Optimization Engine (COE) to perform data optimization. As of 5.1, offline compression is enabled by default. Inline compression will compress sequential streams of data or large I/O sizes (>64K) when written to the Extent Store (SSD + HDD).
What is CVM in nutanix?
The Nutanix CVM is what runs the Nutanix software and serves all of the I/O operations to the hypervisor and all VMs running on that host hence it is of crucial importance to configure CMVs with the right amount of resources.
What is data locality nutanix?
Nutanix data locality puts ZERO restrictions on where VMs can move within a cluster. VM’s can migrate to a host even if it has no local data. As mentioned earlier, Nutanix always writes new I/O to the local node which means subsequent reads (which are common for new data) are serviced locally.
What is the difference between post process deduplication and inline deduplication?
Inline deduplication means that the deduplication occurs while the backup data is being ingested by the backup device. Post-processing deduplication means that the deduplication occurs after the data has been ingested.
What is global deduplication?
Global deduplication is a method of preventing redundant data when backing up data to multiple deduplication devices. This method may involve backing up to more than one target deduplication appliance or, in the case of source deduplication, backing up data on multiple clients.
How does nutanix address data resiliency?
The Nutanix hardware platform has redundant power supplies, memory and CPU. The platform is resilient to individual hard disk failures. If a disk fails, data is automatically rebuilt without any impact to the App.
What makes up Acropolis nutanix?
Nutanix Acropolis provides data services and can be broken down into three foundational components: the Distributed Storage Fabric (DSF), the App Mobility Fabric (AMF), and AHV Hypervisor. Compare that to Prism and Calm, which are the “control plane” pieces of Nutanix. AOS stands for Acropolis Operating System.
How do I increase my nutanix CVM memory?
You can increase memory reserved for each Controller VM in your cluster by using the 1-click Controller VM Memory Upgrade available from the Prism web console….Increasing CVM memory
- Login into the Prism console.
- Click on the gear icon.
- Select “Configure CVM”.
- Select the target CVM memory allocation > Apply.
What is the purpose of deduplication in Nutanix?
Deduplication allows the sharing of guest VM data on Nutanix storage. Redundant VM data is removed and 1 copy of data is kept. There are 2 types of deduplication depending upon whether it is happening on SSD drves (performance tier) or SATA drives (Capacity tier)
What’s the delay between write and compression in Nutanix?
The delay time between write and compression is configurable, and Nutanix recommends a delay of 60 minutes. If compression is enabled in “Post-process”, then existing data will also be compressed after some time (when curator scans are completed). – Inline compression : Data is compressed as it is written and only new data will be compressed
Why is deduplication recommended for batch processing workloads?
This type of compression is recommended for workloads that perform batch processing. Deduplication allows the sharing of guest VM data on Nutanix storage. Redundant VM data is removed and 1 copy of data is kept.
How is DSF used to maximize capacity in Nutanix?
DSF provides both inline and post-process compression to maximize capacity. Many times, customers incorrectly associate compression with reduced performance, but this isn’t the case with Nutanix. In fact, as of AOS 5.0, all random writes are compressed inline before being written to OpLog (write cache), no matter the chosen configuration.