I am looking for some solution for migrating data (Around 150Tb)from HP Works to NetApp filer. Environment is mixed with Unix and Windows. I heard about robocopy but I think its not good solution for that much amount of data. Also if some one can suggest some thing apart of rsync.
What type of date CiFS/NFS and FC (Block level). I have done large migrations from HP to EMC gear and EMC has Storage tools as well as host based tools to do the migartions and they will usually give you a network based tool (especially if you are coming off a competitor to their EMC gear). They have several Heteorogenous network migration tools (Invista, RecoverPoint, RainFinity) that will do the migration seamlessly in the background with little or no downtime, of course that depends --- I would check with Netapp to see if they have a similiar program --
If you are planning to do it yourself, consider free tools like LVM mirroring or DD or RSYNC.
LVM Mirroring is ideal for any type of data and requires less down time (< an hour).
RSYNC is ideal if ‘file system’ data, and requires longer down time (few hours) depends on the rate of data change.
If planning to outsource, please consult with your NetApp sales or EM. Vicom offers appliance based fixed price simple and fast migration service (1.2 TB/Hour) with service guarantee (~$2K to 3K/server). This includes discovery, planning, preparation, appliance based migration and post-migration clean-up. No need to buy special hardware or software. Vicom is NetApp CDP. Migrated so far 5.5 PB of data and 250+ engagements.
For NAS I would seriously look for a GFV (Global File Virtualization) hardware device with Global Namespace-- moving 150TB using rsync, robocopy, etc will take A LONG time- not to mention robocopy wont move open files and you will need a down time to migrate the share and wait for the files to finish syncing up.. Not to mention you will need to tell all your clients where the new share/mount point is -- GFV will take care of this -- I guess it will be based on you environment, cost, etc