How do you migrate LUNs under volumes from 32-bit to 64-bit?

How do you migrate LUNs under volumes from 32-bit to 64-bit?

• A. lrep
• B. ndmpcopy
• C. rsync
• D. snapvault

Answer: (B)

Migrating 32-bit LUNs to 64-bit LUNs is done with a block-level copy, and the built-in tool for this in NetApp 7-Mode is NDMP copy. The idea is to create a new destination LUN that uses 64-bit addressing with the same size and characteristics as the source, and then perform an NDMP copy from the 32-bit source LUN to the new 64-bit destination LUN. After the copy finishes and data integrity is verified, you switch over hosts to the new LUN and decommission the old one. This approach handles the migration at the block level without relying on file-based tools. Other options don’t fit because rsync operates at the file level and can’t migrate LUNs themselves, SnapVault is a backup/archive mechanism and not a live LUN migration method, and lrep relates to LUN replication rather than performing a 32-bit to 64-bit migration of LUNs.

Migrating 32-bit LUNs to 64-bit LUNs is done with a block-level copy, and the built-in tool for this in NetApp 7-Mode is NDMP copy. The idea is to create a new destination LUN that uses 64-bit addressing with the same size and characteristics as the source, and then perform an NDMP copy from the 32-bit source LUN to the new 64-bit destination LUN. After the copy finishes and data integrity is verified, you switch over hosts to the new LUN and decommission the old one. This approach handles the migration at the block level without relying on file-based tools.

Other options don’t fit because rsync operates at the file level and can’t migrate LUNs themselves, SnapVault is a backup/archive mechanism and not a live LUN migration method, and lrep relates to LUN replication rather than performing a 32-bit to 64-bit migration of LUNs.