Static SRDF vs Dynamic SRDF

Hello Sid,

Static SRDF refers to having EMC setup the source(R1 devices), destination (R2 devices) and SRDF configuration in the bin file. Dynamic SRDF refers to setting up the R1 and R2 devices online with. In short Static requires Bin changes however dynamic can be changed online.

You can also refer to the Admin guides available in the powerlink, else you can open a ticket with EMC.

Hope that helps.

Regards

phukon

You are not stuck with device allocations regardless of if you use static or dynamic SRDF.  As the other poster suggested Static SRDF requires a BIN change while Dynamic SRDF allows you to execute a SYMCLI command to change a device from an R1 to an R2 or a non-replicated device.

Unless you are running a really old Symmetrix with old Enginuity there would not be a great reason not to use dynamic SRDF.  Newer code levels allow you to dynamically move between RDF groups without having to resynchronize data.

Bottom line there is a lot of information out there but have no fear unless you have an older Symmetrix you should not be stuck having to predefine everything and then rely on EMC to make any changes.

Good luck.

siddhu wrote: Does this mean I   need to predict/Pre-calculate to which remote Symmentrix I would   replicate and what are the R1 and R2 devices would participate in the  RA  groups before starting the EMC Symmetrix?

This is called planning.