Robocopy

there is really nothing to it, here is the syntax that i use.

robocopy \\netapp\share \\unity\share  /MIR /NFL /FFT /R:1 /W:1 /NP /DCOPY:T /MT:64 /LOG:C:\migration\robocopylog.txt

run robocopy /? to learn the syntax

Thanks dynamox.

There is only single command for the Robocopy migration right?

i don't know what you mean ?

If you are doing an EMC professional support organized migration, the preferred tool will be EMCCOPY rather than ROBOCOPY, why - ask EMC, all I know is I participated in a Netapp to EMC migration and we used EMCCOPY.

We have used a mix of EMCCOPY and ROBOCOPY afterwards for various replication jobs, simply because some features in ROBOCOPY are not available in EMCCOPY.

Having a log file after the copy was useful simply so we could give it to our compliance department to provide a chain of file consistency from Netapp world to EMC world. The log files are large and I suspect they were not looked at, but it was better to have them and not need them than vice versa. so that's the;
/LOG option in Dynamoxs example.

The one thing we found ( lessons learned were not being repeated as the migration was a one time event ), was that the copy was very time comsuming and dependant on size, an initial copy and final sync might have been a better approach, but this is dependant on the size of data being migrated.

If the destination is a VNX / Unity / Isilon than emcopy usually works better than robocopy because it was written by EMC to handle some of the EMC specific features.

usually you use it together with lgdup/sharedup - which are all described in the EMC Windows Tools PDF manual

In my personal opinion - if you are doing data migration you should take the time to understand the src/dst config plus the copy tool and every switch used.

If you just paste a "step-by-step" procedure without understanding what it does you are likely to be stranded in case anything doesnt work as expected

doing a trial run and check with a subset of the data before cutting over production is also a good idea

Thanks for the recommendation, Rainer,

We do Testing before actual migration.

Dynamox, There is one Syntax for the complete migration from Netapp to Unity using Robocopy?

Thanks for the recommendation, Castleknock.

I would appreciate it if u Can you help me with the EMCOPY migration(Netapp to Unity) document.

@skva, why can't you use isi_vol_copy with NDMP from Netapp to Isilon, it just translate the same file permisson except the local permissions and some shares can break, and make sure that isi_vol_copy version is uptodate on your Isilon..

HEagle18 We are moving from Netapp to Unity, we have 2 options either Robocopy or EMcopy.

If u did Robocopy in your past, please do help me in the procedure and commands to succesful migration.