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January 8th, 2008 06:00

Looking for the right syntax of adding new DIRs to an existing RA group

I need the following:
I have an RA group "2" which resides on DIRs 4D, 7D, 10D and 13D. I need to move the RA group to 8D and 9D.
I'd like to add DIRs 8D and 9D first, so RA 2 is now on 6 DIRs and after that I'd like to remove the 4D, 7D, 10D and 13D from that RA 2.
The SRDF course book doesn't help much and the lab guide only a bit. I can't fool around too much, since both DMXs are in production and an error from my side simply may not result in downtime whatsoever.

So I'm looking for 2 commands:
1) add 2 new DIRs to existing RA group #2
2) remove the 4 old DIRs from RA group #2

I've found this:
symrdf addgrp -label srdfa_2 -rdfg 2 -sid -dir 8D,9D -remote_sid -remote_dir 8D,9D -remote_rdfg 2
but I can't see whether this creates a new group or only adds new DIRs to the group.

2 Intern

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January 8th, 2008 06:00

If by "RA group" you mean a "RDF group" then the syntax may be something like the following:

hostname:-) # symrdf -sid 1234 -rdfg 2 modifygrp -add -dir 8D,9D

...

hostname:-) # symrdf -sid 1234 -rdfg 2 modifygrp -remove -dir 4D,7D,10D,13D


Cheers !! :D

-s-

BTW addgrp will ADD a NEW group .. ;-)

2 Intern

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January 8th, 2008 06:00

Rob did you already zone dirs 8D and 9D with existing remote RDF dirs ??

2 Intern

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5.7K Posts

January 8th, 2008 07:00

No zoning yet. I've planned some time tomorrow do do the zoning and symrdf changes.

I'll let you know when it's all working.



.....and give you some points ! ;-)

2 Intern

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2.8K Posts

January 8th, 2008 07:00

.....and give you some points ! ;-)


OK !! More points = more money = new living room :D

-s-

2 Intern

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2.8K Posts

January 8th, 2008 07:00

No zoning yet. I've planned some time tomorrow do do
the zoning and symrdf changes.

I'll let you know when it's all working.


Are you planning to move group 2 to new processors only on one side or are you going to change also the other side of the link ??

Please remember that "symrdf modifygrp" will fail if the environment is in an incorrect state, preserving your replica .. But giving symrdf the right environment BEFORE running the command may help in avoiding PITAs :D

-s-

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January 8th, 2008 08:00

Because eventually we will "send" the async data over other eth interfaces on our Cisco 9216i''s, I will even create new VSANs for these new ports. So new VSAN and new zones. We're not going to put everything in 1 big happy zone so we're going to maintain "single initiator single target".....

Tomorrow we will send the data accross the same eth link (FCIP) and in a month or so we will separate the 2 data streams.

2 Intern

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2.8K Posts

January 8th, 2008 08:00

How will the zones be layed out ?? Are you going to create new zones with only the new processors ?? Will the zones contain only 2 processors (i.e. 9D from local box and 9D from remote box) or all the processors will be in the same zone??

-s-

2 Intern

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January 8th, 2008 08:00

Since that you are going to create brand new zones with only the new processors, it's better to modifygrp -add(ing) both local -dir and -remote_dir at the same time :-)

2 Intern

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5.7K Posts

January 8th, 2008 08:00

Both sides will be involved of course.

What do you mean by incorrect state ? Replication is suspended at the moment if that's what you mean, or do you mean that zoning must be in place before we start messing around with the symrdf commands ? We will do the zoning first ;)

2 Intern

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February 18th, 2008 02:00

Rob .. are you still waiting to chnge your RDF groups ?? :D

Is there something we can do for you ;-)

-s-

2 Intern

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5.7K Posts

February 18th, 2008 02:00

This one has to do with our "ACP_Disk" issue and since we created a workaround for that, the physically spreading of SRDF/A and /S is no longer a high priority issue.

I'll close this topic, however I'm not able to tell you yet whether your solutions worked.
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