Live Storage Migration
This article is a sample scenario that will guide you through the basic steps of migrating online data from one volume to another.
The information in this scenario applies to:
- cluStore 1.6.1
- Microsoft Windows® Server® 2003/Server® 2008/Server® 2008 R2 (32-bit and 64-bit)
- Mac OS X Snow Leopard Server(32-bit and 64-bit), Mac OS X Lion/Lion Server (64-bit)
In this scenario:
The architecture with a File Server exporting shares to clients on the LAN is probably the most commonly deployed setup. LAN clients can access the shared storage through the File Server, on which the volume is directly attached.
Problems with this type of setup arise when the shared volume reaches its capacity. A common solution is to backup your files, reformat a larger volume and then restore everything.
In the process of migrating to a new device (with larger capacity) your organization faces the following challenges:
- copying Terabytes of data can take days
- LAN clients are left with no connection to the storage
- LAN clients cannot access their files until they are copied to the new device
- after the migration file paths are all messed up and applications “complain” about broken links
Clustore addresses all of these issues and allows you to migrate your online data using a smoother workflow, keeping your shares accessible during the migration process.
Migrate data from one volume (original volume shared to LAN clients on the network by a File Server) to another (with larger capacity) while providing constant access to all files and folders on the shared volume to LAN clients.
For the purpose of this scenario we will use a File Server that has exported to LAN clients on the network volume A, that is mounted on the machine as the drive letter P:
Volume A should be replaced with volume B.
- On the File Server, start cluStore .
- In the cluStore window, click New.
- Open the General tab of the dialog and in the Name field enter “New LAN Pool” as a name of the volume pool.
- Click Add.
- In the Add Volumes dialog, Select the check-boxes of volume A (the old LAN share) and of volume B (the new volume that will replace volume A).
- In the Mount location field, enter P:, to mount the pool under drive letter P.
- In the Edit Pool dialog, click OK.
- In the cluStore window, select “New LAN Pool” and click Mount.
Volume A is automatically unmounted and on its place (under drive letter P:) is mounted the volume pool that contains volume A and volume B. LAN clients are automatically redirected to access the volume pool that contains their data.
- In the cluStore window, select “New LAN Pool” and click Explore.
- In the Folders panel of Pool Explorer, select the root of the pool and click Release.
- Select the check-box of volume A and click OK.
cluStore starts moving all data from volume A to volume B. The migration is fully transparent to the LAN clients accessing the pool and while it goes on all original files and folders are available to them.
Important: Files that are currently in use cannot be moved and are skipped. You can move these files later. To view which files from volume A haven't been moved, in Pool Explorer clear the check box of volume B. This displays only the files and folders on volume A. if there are any files left on volume A, you can repeat the Release operation.
When all contents on volume A is moved to volume B, volume A is automatically removed from the pool and mounted in its original mount location.