Prereq's for SANCopy

Question

I have 2 Clariions from 2 locations who's ip-networks are not connected. When I want to implement SANCopy between the 2 Clariions, do I also need a tcp/ip connection between the 2 Clariions or is a connection with one of the 2 enough to get thnigs operational ? My thought is that since SC runs over FC and the remote array only functions as a target - a storage system where the data from the first is stored at - I don't need it, but I'm not sure. Anyone ?

dynamox · Accepted Answer

you don't need it but here is the interesting part. I just had to SanCopy from CX500 to NS120 and from CX600 to NS480 and in both cases i experienced the same behavior. Once i zone source to target and go into sancopy on the source (let's say CX500) and select update connection, l do see CX500 SPs log-in into NS120, they are listed as CX500SPa and CX500SPb in Connectivity status. Looks good so far right , but when i go to add them to a storage group (mask) so CX500 can write to specific LUNs on target, i do not see CX500SPa nor CX500SPb in the list of available hosts to add to the storage group. I think it has something to do with the fact that CX500 and NS120 (really CX4-120) are not in the same Clariion domain. That's the only thing i can think off, i have seen this twice too with CX500 to NS120 and with CX600 to NS480 so i know it's not a fluke. The solution is easy, i add the SPs to storage group via command line.

naviseccli -User admin -Password password -scope 0 -address 10.10.1.2 storagegroup -connecthost -host CX500SPa -gname sancopymigration

at this point i am able to write from CX500 to NS120, LUNs in the storage group sancopymigration. The weird part is that if you right click on storage group "sancopymigration" and click on the host tab, it's empty ...weird but it works

dynamox · Answer

no tcp/ip between Clariions, but you do need access to source clariion to use navi cli/Navisphere to create/start sancopy sessions.

RRR · Answer

So no tcp/ip needed between the 2 Clariions then ?I can travel between the 2 sites, that's no real problem. Once it's up and running no changes are needed anymore anyway.

RRR · Answer

Clear. Thanks.

kelleg · Answer

If you want to use the GUI, the arrays need to be in the same domain with IP connection. If you use the CLI, you don't.glen

AranH1 · Answer

Very cool. I did not know that you could SANcopy between arrays in different domains using the CLI. Good tip Dynamox!

dynamox · Answer

i had gazillion firewalls between CX500 and NS120 so i knew it would take an act of god to get security folks to open all the ports needed to join NS120 to existing domain, so i monkeyed around until it worked

RRR · Answer

So if they're 2 domains without any ip connection I have to use the CLI ? No problem there. The thing is, that it's data relpication between 2 companies who don't want to share their ip connections.

dynamox · Answer

yes, CLI only. If you try to select target array in Navisphere (on source), it will not see it.

dynamox · Answer

in my case CX500 was on 24 and NS120 on 28 but i have also moved CX600 running 19 to NS480 running 28.

CLARiiON

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