What is a recommendation when using Open Replicator to migrate data from a supported third-party array to a VMAX3 array?
What is a recommendation when using Open Replicator to migrate data from a supported third-party array to a VMAX3 array?
When migrating data using Open Replicator to a VMAX3 array from a third-party array, it is recommended to stop Host I/O to the remote devices on the third-party array for the duration of the migration. This precaution ensures data consistency and integrity during the transfer process.
Roughly Steps would be A) bring the apps and luns offline (unmount) B) (as best practice remove old lun from the server ) C)create hot pull session D) once session created and activated , no need to wait the data copy to 100%( background copy will continue) E) you can present new storage luns to app server and start using the luns [if -donar_update is used. the data block updated on VMAX LUN will be updated on Hitachi Lun also, If -donar_update not used Hitachi lun will not be updated (retain its original )] F) once 100% copied you can break and terminate session https://navanuthana.wordpress.com/2020/03/10/one-page-emc-open-replicator-how-to/