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Data Migration
Chapter 4 Storage Configuration and Expansion 61
Data Migration
Use the Data Migration feature to migrate data from a legacy SnapServer or other
computer that supports CIFS or NFS (v2 or v3) to a new SnapServer. The Data
Migration (DM) feature can be used to copy or move files and folders from a server
on the network (source) to a SnapServer (target).
To access the Data Migration utility, navigate to
Maintenance > Data Migration
.
If an error is encountered during migration (e.g., a file or folder is locked and cannot
be migrated), the DM utility records the error in a log, and continues the operation.
When the migration is completed, the administrator can view the log of migration
errors. Once the errors have been corrected, the user returns to the DM main
screen, and recreates the migration. With the exception of the password, all fields
will still be populated with the specifications of the last job.
The following migration options can be specified:
• Copy or move data
• Include subfolders
• Overwrite existing files
• Preserve the original permissions settings
Note
If you elect to preserve original permissions settings, be sure to review
Preserving Permissions.
• Verify migrated data
Note
If you elect to verify migrated data, all data will be read twice, once for
migration and once for comparison to the copied data. This could be a lengthy
process.
For details about setting up a migration job, see the online help.
Note
If a migration failed, it is strongly recommended that you enable the
Verify
migrated data
option for the re-migration.
Preserving Permissions
The types of permissions retained will differ, depending on which of the following
migration scenarios is applied:
Migrating from a Windows Security Model to a Windows SnapTree
If you are migrating from a Windows server (or other type of server that follows the
Windows security model) to a Windows SnapTree on a SnapServer, permissions
will be retained exactly as they exist on the source. However, as is the case when
moving files with permissions between Windows servers, permissions for users