Difference between device masking and mapping

Question

Hi Guys, Can any one please explain the difference between device masking and device mapping??

dynamox · Answer

if i may recommend excellent manuals found at Home > Support > Technical Documentation and Advisories > Software ~ S ~ Documentation > Solutions Enabler > Maintenance/Administration

dynamox · Answer

and this thread here:https://forums.emc.com/forums/thread.jspa?tstart=0&threadID=65446

RRR · Answer

In short:- mapping means making symdevices visible on an FA port- masking means not allowing all attached (= zoned) hosts to see everything on that FA port. Only the masked wwns can now see the symdev it's masked on.

Naidu2 · Answer

Then the below command refers to mapping?symmask -sid -wwn add dev 01B -dir 7B -p0 Because i'm mentioning wwn number and port number in the same command.

Naidu2 · Answer

Instead of 'symconfigure' for mapping what is the alternative command.

dynamox · Answer

that is an example of masking. The process of mapping devices includes creating a file that contains something similar to :

map dev 01B to dir 7B:0, lun=005

and then running "symconfigure -sid 123 -f filename.txt commit" to actually map the device.

dynamox · Answer

if you are using Solutions Enabler to map devices you have to use symconfigure, alternative ways to map devices is by using ECC (EMC Control Center) or using SMC (Symmetrix Management Console) or to engage your local EMC technician and do it in the bin file.

RRR · Answer

Why is it that you get points for telling us about tools and the others don't get points for actually telling the difference between masking and mapping ?

xe2sdc · Answer

Rob don't cry .. we still have another helpful and a correct answer available ..

dynamox · Answer

i think you need to address your question to Naidu ...i don't mark my answers

Naidu2 · Answer

Could you please tell the correct answer for mapping devices with alternate command ?

dynamox · Answer

there are 4 ways to map devices:1) Solutions enabler (symcli)2) ECC (EMC Control Center)3) SMC (Symmetrix Control Center)4) Bin file (done by EMC technician)

RRR · Answer

Yeah, but he's not giving away points

Symmetrix

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