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  1. Random NFS disconnections after vSphere 5.5 U1 | Virtual-J

    […] Random NFS disconnections after vSphere 5.5 U1 […]

  2. Caution: do not upgrade to VMware vSphere 5.5 Update 1 if using NFS | UP2V

    […] Michael Webster: Heads Up Alert: vSphere 5.5 U1 NFS Random Disconnection Bug! […]

  3. Kev Johnson
    Kev Johnson at |

    Interesting: I've noticed dropouts in my lab with iSCSI targets (FreeNAS) since upgrading to 5.5 U1 – not done any real investigating as yet, but it may be related. All was fine on 5.5 GA, and I don't see these dropouts (usually only 3-8 pings worth, but enough to cause concern) when using local storage. Don't have NFS to test with I'm afraid 🙂

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  4. – New Bug Found in vSphere 5.5 Update 1: NFS Randomly Disconnects

    […] Please check out this advisory here. […]

  5. Lee Marzke
    Lee Marzke at |

    Interesting: Probabily not related but when upgrading my small environment I shutdown a bunch of servers including my NTP server like I always do to conserve memory in my small cluster. Anyway the NFS started being flaky and not connecting reliably, then finally not connecting at all for day. Turnes out it was a time sync issue, and my hosts were just far enough off to matter. I didn't think NFSv3 would fail just because of time issues, but on ESXi v5.5 it does.

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  6. Lee Marzke
    Lee Marzke at |

    FYI, my storage at this point was on SmartOS:ZFS using a global zone NFS mount, but another unrelated hardware NAS unit and a virtual Nexenta NAS also failed to mount NFS on ESXi 5.5 ( but iSCSI worked )

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  7. contregm
    contregm at |

    I have to say that we have recently updated multiple sites to 5.5u1 and are using NFS with NetApp at all of them and we only had this problem at 1 site. The symptoms were exactly the same as the ones referenced in the KB with NetApp in Nick's article. This was only affecting attaching to one of our filers while the second one had no issues. The site that had the issue is a busier site and even though we are running a version of OnTAP that is bug fixed when I changed the queue length on the hosts and rebooted the issues stopped. So even though it is affecting multiple storage vendors kind of wondering if it could be near the same issue. Now another thing could be is that only the site affected has been upgraded to 10GB and JF so far.

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  8. Alert: vSphere 5.5 U1 and NFS issue!
    Alert: vSphere 5.5 U1 and NFS issue! at |

    […] had already reported on this on twitter and the various blog posts but I had to wait until I received the green light from our KB/GSS team. An issue has been […]

  9. Alert – vSphere 5.5 Update 1 and NFS – dropped connections | Notes from MWhite

    […] 4/19/14 1049 – just saw this – Michael Webster’s post on this issue – and it has other info – thanks […]

  10. Problema con NFS en vSphere 5.5U1
    Problema con NFS en vSphere 5.5U1 at |

    […] también informa del problema en su blog Yellow Bricks Michael Webster informó de ello en su blog Long White Virtual Clouds Marcel Van Den Berg lo comentó en su blog up2v.nl con varios ejemplos de gente […]

  11. Tweet: Heads Up Alert: vSphere 5.5 U1 NFS Random Disconne… | Talking IT

    […] Up Alert: vSphere 5.5 U1 NFS Random Disconnection Bug! longwhiteclouds.com/2014/04/18/hea… 00 […]

  12. Alert: vSphere 5.5 U1 and NFS issue! | Online News Portal

    […] had already reported on this on twitter and the various blog posts but I had to wait until I received the green light from our KB/GSS team. An issue has been […]

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