Dec 102014
Records retention and NMC

For those of us who have been using NetWorker for a very long time, we can remember back to when the NetWorker Management Console didn’t exist. If you wanted reports in those days, you wrote them yourself, either by parsing your savegroup completion results, processing the NetWorker daemon.log, or interrogating mminfo. Over time since its introduction, NMC has […]

Dec 012014
A locale problem

I had a doozy of a problem a short while ago – NetWorker 8.2 in a big environment, and every now and then the NMC Recovery interface would behave oddly. By oddly: Forward/Back buttons might stop working when choosing between specific backups in the file browser Manually entering a date/time might jump you to a different date/time Backups that […]

Nov 302014

It’s that time of the year again where I ask my readers to set aside 5 minutes or so to answer some questions about how they’re using NetWorker within their environment. These results get compiled into the Annual NetWorker Usage Survey. You can find reports from previous surveys here, and the 2013/2014 report can be directly downloaded […]

Not so squeezy

 Scripting, Tidbits  Comments Off
Nov 182014
Not so squeezy

It’s funny, the little tools you build up over the years as someone heavily involved in backup, particularly when it comes to testing. I have two tools that help me with filesystem and performance testing – one I call generate-filesystem, and one called genbf (generate big file). The genbf tool came about when I wanted files that […]

Oct 272014
Parallel Save Streams for HDFS Performance Gains

One of the great features in NetWorker 8.1 was Parallel Save Streams (PSS). This allows for a single High Density File System (HDFS) to be split into multiple concurrent savesets to speed up the backup walk process and therefore the overall backup. In NetWorker 8.2 this was expanded to also support Windows filesystems. Traditionally, of course, a single filesystem or […]

Oct 232014
Backing up renamed directories

Long-term NetWorker administrators may remember that NetWorker used to have a somewhat odd mechanism of dealing with renamed directories. Nowadays the default option for any new client is to enable backup renamed directories, and this is a good thing, even though it might end up using a bit more backup media. To explain the difference between then and now, and why the […]

Oct 202014

Introduction There’s currently three distinct and still-supported mechanisms for backing up virtual machines in NetWorker. These are: Traditional (in-guest agent) VADP (image level, previous generation of backup technology) VBA (image level, current generation of backup technology) Each have their own advantages and disadvantages, and the purpose of this article is to outline a few of […]

Oct 062014
Seeing in-flight encryption with Data Domain and NetWorker at work

As I mentioned in an earlier article, Data Domain OS 5.5 introduced a new feature, in-flight encryption. This applies to Data Domain Boost connections, and requires v3 of the DDBoost Libraries, which are thankfully found in NetWorker 8.2. Currently you won’t find the controls for in-flight encryption within NetWorker – it’s something that needs to be enabled […]

Sep 012014
Basics - Workflow for adding a new client

A question I get asked from time to time is “How do I do X in NetWorker?”, and by how, I mean what’s the order of steps, rather than a general description. To me, the configuration steps in NetWorker are often quite minimal compared to the operational and organisational processes that typically should be followed to ensure an appropriately […]

Aug 252014
Architectural implications of in-flight Data Domain Boost encryption

Between the Boost libraries included in NetWorker 8.2, and the in-flight encryption functionality added in Data Domain OS 5.5, it’s now possible to configure Boost-encrypted backups – and there’ll be quite a few sites with rigorous security requirements for which that’s a highly desirable function. But it’s important to keep in mind that there are […]