Prod and DR servers have R1/R2s assigned and VxVM is being used on the server. All SRDF related operations are performed at the host level either from Prod or DR node. Ideally, all SRDF devs should be part of Veritas DG as well as symdg. What happens when you perform the DR test, and after […]
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EMC – How to set up Concurrent SRDF
Concurrent SRDF could be used in a couple of scenarios such as setting up a temporary replication to another array in order to migrate large amount of data, or a permanent solution as part of DR strategy. Below are the steps that should generally be followed in order to set up the replication for a […]
EMC – SRDF – Operational Commands
SRDF related operational commands: How to list RA ports between 2 EMCs # symcfg -sid 1234 list -RA all [–switched] Symmetrix ID: 000292601234 S Y M M E T R I X R D F D I R E C T O R S Remote Local Remote Ident Symb Num Slot Type Attr SymmID RA Grp RA Grp Status RF-5H 05H 117 5 RDF-BI-DIR – 000292605678 […]
EMC – SRDF Status
This post illustrates the outcome of various SRDF commands, prerequisites to run them, and a one liner description of various opertations. Various Pair Status: Synchronized – R1 and R2s are in synchronized state, and both have same content with no invalid tracks between R1/R2. SyncInProg – Synchronization is underway between R1 and R2 because there […]
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. This post contains brief explanation of terms associated with SRDF, its operational use, […]