System Landscape in XI environment

Hi,
We are having three XI systems, XID (Dev), XIQ(Qtly) and XIP(Prod) and an EPP (Enterprise Portal). Earlier EPP was pointing to SLD of XID. Now we want to revamp the components and install them in a better way. Currently we are thinking of the following options.
Options 1) Export SLD from XID and import into XIP
Point XIP and EPP to XIP-SLD
Leave all non-production pointing to XID
Option 2) Export SLD from XID and import into XIP & EPP
Point EPP to EPP-SLD
Point XIP to XIP-SLD
Leave all non-production pointing to XID
Option 3) Implement Full-blown parent/child SLD replication including NJP
Requires research. Is this higher risk?
Can you suggest me the better option to maintain the landscape in a better way? And also support your suggestion by providing the suitable documents which will help me to realize myself to understand the same.
Thanks & Regards,
Suraj Kumar

Suraj,
His suggestion is to have one SLD because it would be easy for you gusy to maintain. Also it would be easy when transporting. If you keep increasing then it will confuse yourself only. I think we will not have any document on this.
Check this doucments which may give you some idea:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/9e76e511-0d01-0010-5c9d-9f768d644808
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/09cb9ffb-0701-0010-4183-c2e8f405bf9a
http://help.sap.com/saphelp_nw04/helpdata/en/fe/39ae3d47afd652e10000000a114084/content.htm
---Satish

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\[Telephon number / e-mail address removed by moderator: Please use SDN Business Card. Please note that this is an international forum -> country code required!\]

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