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    2. olivier
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    Posts

    Recent Best Controversial
    • RE: XenServer hyperconverged

      I have file level restore on top right now 😉

      posted in IT Discussion
      olivierO
      olivier
    • RE: XenServer hyperconverged

      @scottalanmiller I have multiple angles of attack, I'm currently benching and establishing pros/cons for each approach.

      posted in IT Discussion
      olivierO
      olivier
    • RE: XenServer hyperconverged

      Haha sure 😉

      Hope the test would be conclusive. I have no guarantee, I'm exploring.

      Imagine if only I had a bigger team 😄

      Let's keep up posted!

      posted in IT Discussion
      olivierO
      olivier
    • RE: XenServer hyperconverged

      That's very likely, but one step at a time 😉

      posted in IT Discussion
      olivierO
      olivier
    • RE: XenServer hyperconverged

      Probably a beta one day, but it's really to soon to have an ETA. I'm only on preliminary tests stage, so it seems to work, I have to:

      • find the right settings
      • make various tests in 2 hosts scenario
      • reproduce the recipe when it seems OK after tests

      Then, the automatisation phase would be a bit tricky, in order to "package" a turnkey thing.

      My biggest interrogation now more about speed than resiliency (which seems OK).

      But sure, as soon I got a minimal viable product, I'll open a beta.

      posted in IT Discussion
      olivierO
      olivier
    • RE: XenServer hyperconverged

      @Kelly Obviously not at first (if you need XOA to bootstrap the SAN, egg/chicken problem), but it could be migrated on it right after it's operational.

      posted in IT Discussion
      olivierO
      olivier
    • RE: XenServer hyperconverged

      @Danp said in XenServer hyperconverged:

      Sounds similar to Atlantis USX.

      Roughly the same principle yes (using VMs to make a storage abstraction layer)

      posted in IT Discussion
      olivierO
      olivier
    • RE: XenServer hyperconverged

      Should be better because:

      • No split brain possible
      • No modification in XS host (so no problem to upgrade XS hosts)
      • Scalable

      Cons:

      • losing a bit of RAM and storage
      • some extra layers, but in a 2 hosts situations I don't think it's a big deal

      Extra layers are necessary so far until XenServer SmapiV3

      posted in IT Discussion
      olivierO
      olivier
    • XenServer hyperconverged

      Hi there,

      Just to let you know I recently made initial tests to put XenServer in another level. I know it seems really important for some of you here to have an hyperconverged solution for XenServer (@scottalanmiller 🙂 )

      I got initial successful test, in a very minimal scenario, so it's just a start.

      Context

      • a pool of only XenServer 2 nodes (nothing else, no NAS/SAN)
      • only using local storage

      Objectives

      • a loss of one host won't affect storage for any running VM on the other host
      • allow live migration between two host without disk transfer
      • no split-brain scenario even in 2 nodes context
      • no SPOF
      • no XenServer system modification

      Results

      Worked as expected in first tests.

      Limitations

      • a bit of RAM and storage will be needed to provide this
      • it relies on dedicated VMs (one per host) to expose it
      • it uses a iSCSI SR in multipath

      Ideal objective

      XOA would be able to download and deploy all the needed stuff inside an existing infrastructure (depending if there is enough resources obviously). So a "one click to install my virtual SAN" would be totally possible.

      Also, there is very interesting possibilities for more nodes scenario (not just replicating, but distributing the content AND duplicate it to allow correct performances).

      posted in IT Discussion xenserver xenserver 7 xen orchestra hyperconvergence hyperconverged
      olivierO
      olivier
    • RE: Pre-release of Upcoming Version of XenServer Now Available for Download

      For XS export speed: YMMV. I don't have major issues on my side, but some people (let's say 10/15%) had problems.

      I suppose it's more related to a hardware problem.

      I see improvements yes, but at the margin, I'm often saturating my GB link.

      posted in IT Discussion
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      @scottalanmiller said in What Are You Doing Right Now:

      @olivier said in What Are You Doing Right Now:

      Open Source is at best a side product of the price choice, but not the thing that would make your decision.

      It's not the only factor but it is ALWAYS a factor. That code is open sourced is a very important factor always for anything critical for a business because it means we have more options and protection than with closed source. I would never rule out software because it is closed source. But it is always a mark against a product.

      And most important to you as a vendor, open source software always gets tested and deployed first because it is the low hanging fruit. If open source meets the needs, it will easily be chosen before the closed source alternative even gets looked at.

      Stop saying exactly in what I believe 😄 😄

      That's good, but that's not reflecting the real market.

      edit: again, my experience, I don't say I got the truth, but didn't see any proof of the opposite so far...

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      I don't think you are representing most of how companies deal with IT ^^ Otherwise, VMWare shares won't be that high.

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      Come on, as a customer/software consumer, you always want cheaper software, and that makes sense 😉 (I don't have any problem with that).

      Open Source is at best a side product of the price choice, but not the thing that would make your decision.

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      @thwr said in What Are You Doing Right Now:

      @DustinB3403 said in What Are You Doing Right Now:

      @thwr said in What Are You Doing Right Now:

      @olivier said in What Are You Doing Right Now:

      @thwr On the US scale, yes 🙂 We have a "big" XOA user in your town (DESY)

      No need to put big in quotes. DESY is a well known name

      It is? What's DESY?

      https://en.wikipedia.org/wiki/DESY

      In short, a "smaller" LHC, but with a LOT of machines doing heavy CPUs task, running a LOT of XS hosts.

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      @thwr Not for non-science people ^^

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      @thwr On the US scale, yes 🙂 We have a "big" XOA user in your town (DESY)

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      @BRRABill Sorry watching TV at the same time (and it's already 10:20PM here)

      I thought you search for a list of our reseller with a map with everyone of them 😉

      We are based in France, in Grenoble.

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      @BRRABill Got it. Not yet, that's also because XenServer market isn't really big (I don't say "confidential" but close)

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      That's the point of being "on the ground" for a partner/reseller, I don't think we have a reseller which is not reselling "locally" 🙂

      posted in Water Closet
      olivierO
      olivier
    • RE: What Are You Doing Right Now

      I can't remember all the partner names (a dozen). See the program description here: https://xen-orchestra.com/#!/partner

      posted in Water Closet
      olivierO
      olivier
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