DMX srdf replication requirements

Thanks for the reply .production team is asking to install it in dr servers can you think of any other benifits from this.

no we are trying to replicate oracledb and oracleapps using srdf using a three site replication (1)pr---(2)bunker---(3)dr

You will to install on DR Mgmt servers but i dont think of any benefit of installing it on the DR hosts? Is it going to be a SRDF CE environment?

well i dont see a reason why they have asked you to install it on the DR hosts? Ask them

some hosts may need symcli to perform integrated backup, for example exchange and sql boxes that use VSS providers with Timefinder integration packages.

it turns out they need to run cloning script at regular intervals from the host and mount the filesystem after that.So for symclone  to work in particular machine symcli installation is needed .Is this a best method ?

Sree,

True you dont need to install symcli on all hosts which are part of remote replication.

But it's better to install symcli on atleast one of the DR mgmt box so in case of Actual DR people can manage SRDF operations using that management box. Apart from that in case your using TF clones or snaps on some of the DR hosts for backup or other needs you will need symcli installation and ACL setup for them so they have access to only those devices assinged to that hosts.

Regards,

Mrinal Dani

We have already one management server for DR .As you mentioned even if am doing TF or snap operations i can do all that from management server right.One more doubt i have is on what all factors does TF operations depends .As per my knowledge it depends only backend adapter speed (correct me if am wrong).Does it have any impact on symcli management server capacity .

Sree,

Your thinking correct TF is not dependend on the symcli management server capacity. But you wont like to make such a slow virtual machine for symcli or such a box which dies every now and then for symcli. There is minimum server configuration as per symcli installation guide and that much should be adhere when building it .  Having said that install symcli for most of host which performs TF as in most places people install symcli on all boxes which are involved in this and provide acl access such that the system admins or DBA's or the owner of the servers can script the TF ops as per their convinient. Yeah but in a small environment if storage admin dnt want to give any such access then you can have one centralised management host on both sites and perform all operations from it.Regarding the dependency on Backend Dirs for TF speed is complete different topic and yeah it should be dependent too.

Hope your setup is already ready by now.

Dynamox,

Thats also true Job Schedulers are used many places.But in  my past work place a major EMC customer and Financial Bank this way it was being followed and in initial deploy only hosts were equiped with symcli in case they have plans for TF or SRDF ops and we used to provide the ACL access to them. There were many job schedulers also but for other purposes.

Actually in big shops you don’t install symcli on hosts that don’ need it, you use enterprise job schedulers like Control-M to run jobs.

Thanks Mrinal,Dynamox

Setup is in initial phase now Design goes like this.We are replicating oracle db servers from production to DR ,as per suggetions from DB team we are only replicating archive mount points Every one hour DB server will run script that will clone the R2 device with local device (allocated to db sever),mount it and apply archive on the DB server and unmount it.So for the cloning part it needs symcli commands so we are installing SYMCLi in all db servers.

Your welcome Sree for letting us know.Also you can try setting up sym ACL's for this hosts so they will have only access to those devices which they need and wont able to do anything else. It will be fun setting it up if your doing first time. There is very good white paper on ACL setup you can refer the same.

Regards,

Mrinal Dani