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josue.lima
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Networking Best Practices for a migration - from PS to SC

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In my old production environment, I have 2 PE R640 and a Dell PS4100 connected to a PowerConnect 6224 using the iSCSI protocol.

Now, I bought two new Dell EMC S3124 and a Dell EMC SCv3020 to improve my production environment, and I'll continue using iSCSI protocol.

My new switch configuration is in the following link: https://photos.app.goo.gl/LN58pgyfzzR4seM88

I don't connected all interfaces of the hosts as it is in the image, because I don't execute the migration to my new environment. In this moment, just four SCv3020 interface per controller and two R640 interfaces are connected. My switches are stacked.

I'm using the VMware  vSphere 6.5 as my hypervisor.

If you guys could help me, here are my doubts:

  • What are the best practices to connect the old to my new environment to execute a health data migration?
  • Will I be necessary to connect an uplink cable to my old switch to see the PS volumes?
  • Will I be able to migrate my data successfully, without interoperability?
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dwilliam62
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Re: Networking Best Practices for a migration - from PS to SC

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Hello,

 Are all your volumes on VMFS Datastores? 

 There are three ways to migrate data from PS to SC.

  Not in any order:

1.) Thin Import

 2.)  XPR Replication  (Cross Platform Replication  The PS Storage needs to be on 10.0.x firmware)

 3.) Storage vMotion.

 #3 is one that can be done live. The other two would require some downtime.

 Basically you just need an ESXi server that can see both the old and new storage.  Then you can migrate VMs to the new SAN.  I suspect the new storage is configured for 10GbE so this should be pretty easy to do.

  You don't need to interlink the old PS iSCSI SAN and the new iSCSI SAN for SC.

  Option 1 and 2 would require access from the PS iSCSI network to the new SC iSCSI network.

  You can also open a support case and they will help you with this as well.

 Here are some links with info on PS and SC storage together

https://www.dell.com/support/article/us/en/04/sln310094/ps-sc-series-coexistence?lang=en

https://downloads.dell.com/solutions/storage-solution-resources/PS-Series-SC-Series-Sharing-Linux-Ho...

 Regards,

Don

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dwilliam62
3 Silver

Re: Networking Best Practices for a migration - from PS to SC

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Hello,

 Are all your volumes on VMFS Datastores? 

 There are three ways to migrate data from PS to SC.

  Not in any order:

1.) Thin Import

 2.)  XPR Replication  (Cross Platform Replication  The PS Storage needs to be on 10.0.x firmware)

 3.) Storage vMotion.

 #3 is one that can be done live. The other two would require some downtime.

 Basically you just need an ESXi server that can see both the old and new storage.  Then you can migrate VMs to the new SAN.  I suspect the new storage is configured for 10GbE so this should be pretty easy to do.

  You don't need to interlink the old PS iSCSI SAN and the new iSCSI SAN for SC.

  Option 1 and 2 would require access from the PS iSCSI network to the new SC iSCSI network.

  You can also open a support case and they will help you with this as well.

 Here are some links with info on PS and SC storage together

https://www.dell.com/support/article/us/en/04/sln310094/ps-sc-series-coexistence?lang=en

https://downloads.dell.com/solutions/storage-solution-resources/PS-Series-SC-Series-Sharing-Linux-Ho...

 Regards,

Don

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