Importing data into the SAN File System

This topic describes how to import data into the SAN File System.

Prerequisites

Review the data-migration prerequisites before you begin migrating data.

Context

Attention: When you migrate UNIX® file system files to SAN File System, you lose any Posix-based access control lists (ACLs) from those files.

You can migrate legacy data from your existing file system to the SAN File System using the data-migration utility on the client machine. This utility copies each file-system object from the source file system to the target SAN File System file system. The integrity of the migrated data and metadata (such as permissions and creation time) is checked automatically during the migration process.

The data-migration utility makes an entry in the log file before each file is migrated and marks that entry as "done" when the migration of that file is complete. When migrating large files, you can use the –checkpoint option to mark the entry in the log file after a specified number of blocks is migrated. The size of the block depends on the client platform. (The block size is displayed within the first several lines when the migration tool starts. The range is 1 Mb - 16 Mb.)

Note: You can stop the data-migration process at any time and resume after the last completed file or block. The data-migration utility uses the log file to determine where the process was stopped; it knows where to resume the process.

Steps

  1. On the client machine, change to the directory where the migratedata command is located. For AIX®, this is the /usr/tank/migration/bin directory. For Windows®, this is the c:\Program Files\IBM\Storage Tank\Migration directory.
  2. Invoke the migratedata –phase migrate command.

Parent topic: Migrating data

Related concepts
Data migration

Related reference
Data-migration considerations
migratedata

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