NetWorker Blog

Commentary from a long term NetWorker consultant and Backup Theorist

  • This blog has moved!

    This blog has now moved to Please jump across to the new site for the latest articles (and all old archived articles).



  • Enterprise Systems Backup and Recovery

    If you find this blog interesting, and either have an interest in or work in data protection/backup and recovery environments, you should check out my book, Enterprise Systems Backup and Recovery: A Corporate Insurance Policy. Designed for system administrators and managers alike, it focuses on features, policies, procedures and the human element to ensuring that your company has a suitable and working backup system rather than just a bunch of copies made by unrelated software, hardware and processes.
  • This blog has moved!

    This blog has now moved to Please jump across to the new site for the latest articles (and all old archived articles).



  • Twitter

    Error: Twitter did not respond. Please wait a few minutes and refresh this page.

What’s been happening this week?

Posted by Preston on 2009-12-18

It’s been a fairly interesting week overall in storage.

There’s still been a lot of chatter about FAST, EMC’s new system for having LUNs automatically moved between different tiers of storage. I clearly need to read up more about FAST, because so far I don’t see it so much as FAST but as 2nd gear. Sure, being able to automatically move whole LUNs around is nice, but I thought the magic was in sub-LUN migration years ago when I saw a Compellent demo on it. Clearly I’m missing something, because a lot of people have been getting very excited. Then again, my focus in storage has been protecting it rather than optimising primary access, so it’s likely I’ll get more interested in it as I read more about it.

Over at Search Storage, there was an interesting article about data reduction vs data deduplication and compression. This prompted me to pull my finger out, and so sometime soon I’ll have another blog article myself here called All this Deduplication is Making me Thirsty. I’ll leave it as an exercise to the reader what I’m talking about (or a surprise for the article.)

Moving on, I found this excellent article by Drew Robb over at ServerWatch called Tape vs Disk: Tape Refuses to be Evicted. Regular readers of my blog will know that my opinion on the “tape is dead” pronouncements we get every few months is to blow a big fat raspberry at move on. Drew’s article was pointedly useful, in that he dug into the IDC studies on tape sales. While a lot of the media is enjoying running around saying that IDC shows that tape sales are declining, they’re not telling the whole truth, as Drew points out. In actual fact, it’s the low end tape sales that are falling off quite a bit, but the enterprise stuff is still running along quite nicely. This is completely understandable – I’ve seen a lot of small businesses that used to rely on cheap and cheerful tapes like DAT transition to more reliable and longer lasting media, but I don’t see a lot of enterprises killing tape. (What’s the old saying from that old ad – linear serpentine, good for data; helical scan, good for parties … I think the party is fizzing out, but the data is still going strong…)

I think when it comes to handing out awards (if I were to do that) for the coolest storage blog entries this week, they have to go to Storagebod, with his 7 part series of letters to father christmas – including the final one asking for presents for other bloggers.

Over at Grumpy Storage, Ian penned a fantastic article called Show me the Money. I think this should be mandatory reading for every sales person and consultant in the tech industry – certainly in previous companies I’ve dealt with sales people who have been shot down and lost deals for failing to follow these rules that should be self evident.

On the lighter side, someone (apologies, I can’t remember who) twittered a link to Death By Powerpoint. This should be mandatory watching for everyone in business, full stop.

On a more local front, Brian over at Going Virtual has just done his wish list for updates to NetWorker for 2010 in relation to virtualisation support.

On a slightly different note, our Australian government has decided it’s going to attempt to introduce national mandatory net censorship laws next year. I would say what I think about such draconian subjects except it would undoubtedly be retroactively censored next year and this article deleted. I’d hate to upset my article count, so suffice to say, in a more polite way, that I hope they take notice of online polls that show upwards of 95% of people against the idea.

Over at Daring Fireball (yes, I know, not a storage blog), John Gruber has a rather excellent analysis of the garbage that’s been coming out of AT&T lately. Apparently they only want customers to buy, not use bandwidth. Silly, selfish users who expect to be able to buy and then use their services are apparently to blame for profit obsessed companies that have no interest in upgrading their infrastructure to meet needs.

Over on the The Register, there was a story about Stratus putting their money where their mouths are. Good on you Stratus.

Next to last, as a bit of self-advertising, I took time out from this blog to write up some thoughts on all those marketing slides that encourage people to do TCO calculations to compare pushing infrastructure out of the data centre and into the Public Cloud, and suggested that an alternate calculation needs to follow, one that I call Total Cost of Impact.

One final comment: please go and see Avatar. If you don’t, you’ll be missing out on the greatest block buster of all time (so far). If you’re a Star Wars fan, you doubly need to see it, so you can understand what a good movie looks like.

2 Responses to “What’s been happening this week?”

  1. Otmanix said

    I was at a presentation of EMC in Nuremberg regarding Symmetrix, Networker and Data Domain some weks ago. Here are my news so far…

    Virtual LUNs will be free (no extra license). But even if there’s no extra cost it won’t make sense on our DMX4. Some important features are only available on V-MAX.
    FAST will be an improvement to migrate LUNs, e.g. one should be able to migrate LUNs from a SATA RAID5 pool to a FC RAID1 pool. It’s based on Symmetrix optimzer and will be available for DMX and V-MAX. FAST2 is planned for end of autumn year. It should then be possible to migrate on sub LUN level. It will probably be only available for V-MAX. In my opinion FAST2 is really interesting. If you want to use small and fast FC disks or even flash drives you have to migrate data below LUN level. Otherwise it makes no sense to me, e.g. if ywant to get rid of a hotspot on a large VMFS caused by a certain VM it shouldn’t be necessary to migrate the whole VMFS LUN..
    There won’t be any Data Domain gateways in near future. Data domain will be bundled with EMC storage.
    There are no interesting news about Networker which haven’t been posted here ;)

    Best regards, Otmar Meier

    • Preston said

      Hi Otmar,

      I think there’s going to be a fairly interesting transition period for the data domain folks. The hardware will integrate fairly quickly into the EMC product line (we’re in fact already seeing that); however, where things are going to be interesting is the moving of the data domain management into the BURA stream in those high roles. There’s going to be an adjustment period, for sure, but there’s also great potential to have fresh ideas and fresh perspectives come into these product lines – something I’m greatly looking forward to.

      FAST2 will be the more interesting technology for sure. Years ago, as I mentioned in the blog posting, I watched a Compellent demo where individual hot spots were just seamlessly moved up storage tiering; that’s where I’ve been saying for a while now that we’ve reached a point where we need to start doing storage “smarter” rather than just “bigger”. (That being said, I still have some concerns about the rather haphazard approach to data deduplication we’re seeing, but I’ll cover that in an upcoming blog article.)

      Thanks for the news from your presentation, much appreciated!



Sorry, the comment form is closed at this time.

%d bloggers like this: