How does EMC SRDF work?

How does EMC SRDF work?

SRDF/A operates in asynchronous mode. It is a disaster-restart solution that mirrors data from the R1 devices while maintaining a dependent-write consistent copy of the data on the R2 devices at all times.

What is Dell EMC SRDF?

This Ready Solution uses Dell EMC Symmetrix Remote Data Facility (SRDF) software for disaster recovery and data mobility. Data at the remote array is typically only seconds behind the primary site.

What is SRDF replication?

SRDF is basically a short form of Symmetrix Remote Data Facility. This is an intelligent software system for data replication from one Symmetrix Storage Array to another geographically distant location through a SAN or over an IP network.

What is Powermax SRDF?

SRDF replicates data between 2, 3, or 4 arrays located in the same room, on the same campus, or thousands of kilometers apart. 684 and Solutions Enabler/Unisphere for VMAX 8.1 introduced support for SRDF/Metro for VMAX3 and VMAX All Flash families of storage arrays.

How do I set up SRDF?

How to Configure an EMC SRDF Replication Group

1. Verify that the primary and secondary replicas are synchronized.
2. Determine which node contains the primary replica and which node contains the secondary replica by using the symdg show command.
3. Enable the secondary replica.
4. Swap the RDF1 and RDF2 devices.

What is SRDF split?

EMC SRDF logically pairs a device or a group of devices from each array and replicates data from one to the other synchronously or asynchronously. An established pair of devices can be split, so that separate hosts can access the same data independently (maybe for backup), and then resynchronized.

What is Adaptive Copy Disk Mode?

Adaptive Copy Disk Mode Source array acknowleges all the writes to hosts, and saves them in cache of local array. These writes are de-staged from cache to source volume (R1s) and these IOs are tracked as invalid tracks. The data is subsequently transferred to remote volume (R2s).

What is SRDF Metro?

SRDF/Metro is a new feature available on the VMAX3/VMAX All Flash which provides active/active access to the R1 and R2 of an SRDF configuration. In traditional SRDF, R1 devices are Read/Write accessible while R2 devices are Read Only/ Write Disabled.

What is Srdf split?

What is failback in Srdf?

During the SRDF failback operation the R2 devices are write-disabled, the SRDF link is suspended, the disk tracks are then merged, the SRDF link is resumed, then the R1 devices are write-enabled.

How does Smart Dr enhance Srdf metro capabilities?

SRDF/Metro Smart DR

• Disaster Recovery (DR) Solutions protect against failures of the local storage or database by keeping a remote, up-to-date copy of the data.
• SRDF/Metro provides higher database resiliency at short distances (up to approximately 100km), based on synchronous replication.

Which benefits do customers get from running PowerMax SRDF with SRM for vmware VVOL?

By deploying vVols datastores on PowerMax, customers can take advantage of the array’s enterprise-grade application service levels, machine-learning-based data performance, data encryption, data reduction techniques, greatly simplified vVols management, easy vVols configuration, and policy-driven SRM automation.

What is Asynchronous SRDF/A?

Asynchronous SRDF (SRDF/A) transfers changes made to the secondary array in units called delta sets, which are transferred at defined intervals.

What is EMC SRDF (Symmetrix Remote Data Facility)?

EMC SRDF (Symmetrix Remote Data Facility) is a replication product which can be used to replicate the data from one array to second array. Primary use is for business continuity/disaster recovery. Other use is migrating the data from one array to another.

What is EMC SRDF theory?

EMC – SRDF Theory. EMC SRDF (Symmetrix Remote Data Facility) is a replication product which can be used to replicate the data from one array to second array. Primary use is for business continuity/disaster recovery. Other use is migrating the data from one array to another.

What is the SRDF/Metro smartdr configuration?

You can use this configuration to manage the HADR framework for applications that are using mirrored storage devices. In addition to traditional EMC Symmetrix Remote Data Facility (SRDF) configuration, EMC provides SRDF/Metro SmartDR configuration that uses three SRDF/Metro storage devices.