Zantaz EAS File system Rehydration

File system rehydration

We’ve had an influx of EAS file system rehydration jobs lately and I thought it would be nice to cover off one of the key reasons I believe our customers are using this feature.

I’ll describe the scenarios I have seen most recently to set the stage.  A customer has been running Zantaz EAS for a long time for file system archiving, and then one of the following triggered the need for change;

  • The Zantaz EAS infrastructure is getting old, and there is a desire to decommission it.
  • A project to head toward zero infrastructure has started and legacy archiving technologies have no place in that plan.
  • Data centre consolidations, migrations or decommissioning.
  • It’s old, unsupported technology and it’s got to go.

I’ve heard a few other reasons like mergers and acquisitions recently, but they are the most common.

Making it happen

Once you have Simply Migrate installed and configured, open the Simply Migrate Management Shell.

I’ll show you how to create a single job in the following example for a share on a server, but based on that example, you’ll see how simple it is to create a more scaled solution to rehydrate many servers, shares, etc.

New-SMJob -source FileSystem -SourceInput \\server\share -RehydrationSource Zantaz -BatchId 1

The above command will create a new job that performs the following actions.

It will perform a discovery of all Zantaz EAS file stubs,  and commence rehydrating stubs in their current location. Even to this day you constantly hear about long file paths causing problems (Go figure).  I find that interesting, because it isn’t an issue for Simply Migrate, as it was an obvious thing to address before releasing a feature that did anything on a file system.

Anyway, the wonderful thing about this is the speed and the reporting really.  It’s a simple process to start, it’s an even easier process to manage.  The UI shows you how many items were found, if any of the items were failed, and if so, why.   You get a view of the speed that things are happening at, thus, how long it will take to finish.  All out of a 10 minute installation, and a single line in PowerShell.

Look, it is cool that we can rehydrate data so easily for you, but you have a management obligation to know what the impact will be if you do it right?  How much storage is this going to take if I do it?  I need to know if I need new disk, new servers, a new job, new shoes .. all of the above, before I commit to a rehydration.  EAS has been in here for years, I can’t just go and rehydrate that stuff!!! We’ve got your back. A target of ReportOnly won’t actually “do” any rehydrations.  It will just get you the information you need to plan for the rehydration.  namely, everything about every Zantaz EAS Stub, including the original size. 

New-SMJob -source FileSystem -SourceInput \\server\share -RehydrationSource Zantaz -Target ReportOnly -BatchId 1

Now, you’ve got BatchID 1 running … boom! Your files are being rehydrated.  You are now well on your way to freeing yourself from your archive technology … the freedom is worth celebrating.  Today you can move toward your project goal with confidence.  Armed with item level reporting and a better knowledge of your estate.

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