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There is a bug with the way NetWorker 7.5.2 handles ADV_FILE devices in relation to disk evacuation. I.e., in a situation where you use NetWorker 7.5.2 to completely stage all savesets from an ADV_FILE device, the subsequent behaviour of NetWorker is contrary to normal operations.
If following the disk evacuation, either the standard overnight volume/saveset recycling [...]
Over at a website called ignore the code, there’s a fascinating and insightful piece at the moment about removing features.
This is often a controversial topic in software design and development, and Lukas Mathis handles the topic in his typically excellent style. In particular, the summation of the problem through illustrations of two “Swiss Army Knives” [...]
Yesterday I experienced one of those weird NetWorker issues that is such an odd combination of factors that I felt it had to be discussed.
Here’s the scenario. A customer was:
Previously running NetWorker 7.4.2 on their backup server.
Upgraded the server to 7.5.1.
Had a bunch of Windows clients and one Unix client.
The Unix client was configured for [...]
There’s currently a bug within NetWorker whereby if you’re using a 32-bit Windows client that has a filesystem large enough such that the savesets generated are larger than 2TB, you’ll get a massively truncated size reported in the savegroup completion. In fact, for a 2,510 GB saveset, the savegroup completion report will look like this:
Start [...]
I’ve debated for a while whether to do this or not, since it might come across as somewhat twee. I think though that in the same way that “My Very Eager Mate Just Sat Up Near Pluto” works for planets, having an A-Z for backups might help to point out the most important aspects to [...]
While much of NetWorker 7.6′s enhancements have been surrounding updates to virtualisation or (urgh) cloud, there remains a bunch of smaller updates that are of interest.
One of those new features is the validcopies flag, something I unfortunately failed to check out in beta testing. It looks like it could use some more work, but the [...]
For a while now I’ve been working with EMC support on an issue that’s only likely to strike sites that have intermittent connectivity between the server and storage nodes and that stage from ADV_FILE on the storage node to ADV_FILE on the server.
The crux of the problem is that if you’re staging from storage node [...]
Sometimes I feel like a NetWorker old-timer. (When I don’t feel like a NetWorker old-timer, it doesn’t change the fact that I am.) These days, given the huge architectural gulf between them, I’d suggest that anyone who has been using NetWorker since v4.x or v5.x days is a NetWorker “old timer”. Since I’ve been using it [...]
While it turned out to be unrelated, a recent customer question made me think back to the impact of client side compression on the reported saveset size, and for the life of me I couldn’t remember how client side compression affected saveset size reporting.
Of course, it’s relatively simple to test. So I created a 1GB [...]
After 13+ years of using NetWorker, I still tend to interchangeably use the terms ‘upgrade’ and ‘update’ (or to be more precise, mainly use the term ‘upgrade’).
However, there is, and always has been, a difference between the two terms in NetWorker nomenclature, and it’s useful knowing it in case you’re being asked to qualify your [...]
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