Problem of cluster Failover MS after physical RDM conversion to VMDK

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• Unexpected events of the virtualized Windows Cluster Failover?

  I'm running into a problem where I see the unexpected events of failover on a cluster failover of Server 2008 running on four hosts ESXi 4.1.  ESXi hosts themselves are not grouped.  Each ESXi host running a single Server 2008 VM.  Each virtual machine has the latest version of VMware tools installed.

  The problem is that, once every two days or more, one of the nodes in the Windows cluster release out of the cluster without apparent reason, which triggered a failover event.  So far we have not identified any root cause in any component of our infrastructure (eg. network switches etc.).  The VM guest that always falls out of the cluster during these unexpected failovers joined the cluster after a few minutes or more.  In the event of failure, the virtual machine that injects seems quite good other than the event of failure of the cluster (for example, the virtual machine does not drop even pings).  In addition, it is always a different VM that we see this problem with, it is not always the same.

  Any ideas on what could cause this problem?  The thesis that we have currently is that there could be some problems with the cluster questions missed by Windows during the card NETWORK active/active configuration that we have on the vSwitches on the back-end.  We plan to change that active/passive.  VMware's recommendations one way or another?

  I already read the article below as well as VMware MSCS on vSphere 4.1 guide, but none of them seem to deal specifically with underlying vSwitch configuration.  Any input on that?  Ideas on the thing we should look at?  Thanks for the help!

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1002890

  Ahh, so that's another problem.

  In the guide 4.1 MSCS, 'section, vSphere MSCS Setup Limitations limitation', he States:

  With native multipathing (NMP), clustering is not taken in charge when the strategy of path is set to round robin.

  -KjB

• SLES + OCFS2 shared physical RDM

  I intend to install a cluster node Linux SLES OCFS2 using a RDM in physical mode 3.

  I did this once before with both VM and set bus SCSI physical Division on the 1st virtual machine, and then for the 2nd server selected the 1st mapping VMDK file. This gave the desired effect to allow the physical RDM to be shared, but meant that vMotion was not possible for one of these two servers.

  What I intend to do this time is to configure all the same VM 3, everyone has the physical RDM attached without bus sharing together on the SCSI bus.  This is possible, I think that, by setting config.vpxd.filter.rdmFilter to false before you add the ROW to each virtual machine. Then the anti-affinites rules will be set to stop 3 VM running on the same host. This should allow the sharing of the RDM OCFS2 and vMotion of virtual machines.

  I think it will work. Can someone tell me if there are problems with it? Is this a supported configuration?

  Thank you

  Neil.

  More than 2 nodes is not supported by VMware. OCFS2 supports more than two nodes. It has been popular with Oracle RAC, until everyone has opted for the DSO. While VMware does exactly what the no-MSCS Clustering support or requirements are. Most of the things are based on the limitations of MSCS clusters in VMware. I am about to implement a number of clusters for a customer with OCFS2, but will be limited to two nodes. We were just will you use FT for our high availability needs, but with the guest operating system as a single point of failure have failed to meet application SLAS.

• HA configuration issues launched a cluster failover action

  Hello

  Have a warning saying: problems of Configuration HA launched an action of cluster failover is missconfigured or who want to go. The error won't go away

  Thank you / tack

  Glad to see you found the answer.

  I assume you mean Re: cluster this warning on the failover event

  André

• I have problems to restart of Yosemite, after power failure during the new backup, and now HD is also blocked.

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  I tried the holding of 'command-r' and 'option' to see if the problem can be resolved or try any boot from a boot disk, my old backup, USB function start - but after a slow long process it all just stops.

  There is software on my HD that I don't want to lose by simply reformatting the computer, because I am now in a different country, far from my house, which is another problem of the Apple Store, to reinstall my OS from Yosemite on the www.

  Hey AmnonMikeCohen,

  Thank you for being a part of the communities of Apple Support.

  I understand that your Mac is not start properly after the power went out.  Let's start with resetting the SMC and NVRAM on your Mac and see if he can start from there:

  Reset the management system (SCM) controller on your Mac.

  How to reset the NVRAM on your Mac.

  See you soon.

• Receive emails "there is a technical problem. Try again"fails after after many attempts to open.

  Two problems: -.
  1. certain emails receive State "there is a technical problem. Try again"fails after after many attempts to open.

  2. I get Emails with Photos as attachments or a text document. When I send teas on friends the recipient says - no image received

  7 Windows Yes uses customer access to Emails
  Provider is TalkTalk

  
  What client? If WLMail, ask here.
   
  Windows Live Mail Forum
  http://windowslivehelp.com/forums.aspx?ProductID=15

• I'm having a problem reinstalling Windows XP. After formatting the disk and create partitions, it will not complete the installation.

  Problem reinstalling Windows XP

  I'm having a problem reinstalling Windows XP.  After formatting the disk and create partitions, it will not complete the installation.  He goes back and reinstall Windows again.  I go through the installation of 39 minutes, the computer restarts to complete and it loops back and start the installation again. Why it does this and what I can do to move beyond this?

  Go into the BIOS and make sure that you your hard drive is not set to off, and that is the first priority boot CD and your second HD.

  Don't push when it restarts anything just to let him do what he does and report back if anything I'm sorry I have no idea.

• Problems with word and PDF after computer crash. Error "user has access privileges."

  Problems with word and PDF after crash

  My computer crashed and I had to run the recovery disk, the repair option, so he could run again. It does not format my computer but I had to re - install several programs. I reinstalled my copy of office for example.  I have an external hard drive where I put most of my files but since installing the recovery disc, it does not open some Word documents and gives a message error "user has not access privilege." It's the same thing with some pdf files. What can I do?  Please help because I can't open some of my documents from the University.

  Hello world
  I would like to just say thank you for your help and the problem is now solved.  In the end I paid someone to sort it out.  He explained that it was something like permissions for some of my files were owned by my old operating system and after that my computer crashed and I had to put through the recovery disc these permissions have been lost.  He told me that he had a program that looked for the old existing and re-installed.
  Thank you.

• How can I reset my laptop to Nov.2010 - I have problems opening and send emails after January 2011

  I had problems opening and sending emails after January 2011 so I wanted to turn my back on Nov.2010

  Hello

  You cannot use the system back restore more than you have Restore Points. The only one
  Another option would be to return the system to its out of the box, as it was when
  you received. So, it would be better reset your e-mail settings and check with
  the support of your email provider.

  How to create a System Restore Point in Windows 7
  http://www.SevenForums.com/tutorials/697-system-restore-point-create.html

  How to do a system restore in Windows 7
  http://www.SevenForums.com/tutorials/700-system-restore.html

  ============================================================

  These can help with system related issues:

  Follow these steps to remove corruption and missing/damaged file system repair or replacement.

  Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

  Start - type in the search box - find command top - RIGHT CLICK – RUN AS ADMIN

  sfc/scannow

  How to fix the system files of Windows 7 with the System File Checker
  http://www.SevenForums.com/tutorials/1538-SFC-SCANNOW-Command-System-File-Checker.html

  Then run checkdisk (chkdsk).

  How to run check disk in Windows 7
  http://www.SevenForums.com/tutorials/433-disk-check.html

  =============================================================

  This is Hotmail:

  Windows Live Solution Center - HotMail - HotMail Forums Solutions
  http://windowslivehelp.com/

  Hotmail - Forums
  http://windowslivehelp.com/forums.aspx?ProductID=1

  Hotmail - Solutions
  http://windowslivehelp.com/solutions.aspx?ProductID=1

  How to contact Windows Live Hotmail Support
  http://email.about.com/od/hotmailtips/Qt/et_hotmail_supp.htm

  -------------------------

  And Windows Mail

  Windows Live Mail - Forums
  http://windowslivehelp.com/forums.aspx?ProductID=15

  Windows Live Solution Center - Solutions mail - Mail Forums
  http://windowslivehelp.com/

  Windows Live Mail - mail Solutions
  http://windowslivehelp.com/solutions.aspx?ProductID=15

  I hope this helps.

• Problem with opening Windows store after upgrade to 8.1 Windows

  Original title: cant access window 8 app store

  I had a 8.1 window update to my laptop.but 8 window whenever I try to open appstore, I gives me error that cannot cannot to the authentintion, due to errors, .i tried to open AppStore 3 g, wifi and broadband connection.but I still get the same error.

  Help, please.

  Hello

  Please contact Microsoft Community. I understand that you have a problem with opening Windows store after the upgrade to Windows 8.1. I appreciate your efforts to solve this problem. I've surely you will help solve this problem.

  To better understand the issue, I would need more information on your side.

  1. are you able to open other Apps of metro?
  2. What is the full error message?

  This problem might have occurred because of these reasons:

  1. Corrupt the App Store.
  2. Incorrect settings App.
  3. Corrupt system files.

  Try the steps listed here and see if it helps:

  Method 1:
  I suggest to try the procedure described in the article to reregister the App Store and check if that helps.

  http://blogs.msdn.com/b/notime/archive/2013/10/21/10458031.aspx

  Note: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs. For more information on how to back up and restore the registry, click on the number below to view the article in the Microsoft Knowledge Base.

  Method 2:
  If the problem persists, I suggest you perform the Scan SFC (System File Checker) and check if it helps. SFC scan will search the system files corrupted on the computer and replace them.

  Use the System File Checker tool to repair missing or corrupted system files
  http://support.Microsoft.com/kb/929833/en-us

  Hope this information helps. Reply to the post with an up-to-date report of the issue so that we can help you further.

• Physical RDM virtual RDMs taken in charge in vSphere 6.0

  Anyone know if this process in KB 1006599 works in vSphere 6.0 +?

  VMware KB: Switching between physical and virtual compatibility modes in ESX/ESXi, a mapping of raw data

  We are about to move a bunch of RDM to VMDK, but we need to convert physical to virtual RDMs first (you can live storage migration [to VMDK] with virtual RDM but not medical examinations). The other part of the story is that we are running vSphere 5.5 and are about to upgrade to vSphere 6.0

  KB wrote on October 17, 2014 and I wonder if this is still the method support in vSphere 6.0 and that it has not been updated; or if it is no longer supported, in which case I have to do the migration before the upgrade?

  Thank you

  I see no reason why this will not work in vSphere 6, given that the procedure is simply to remove the physical RDM disks and add them again as RDM virtual disks... In my view, that the KB is just outdated.

• Having problems with Adobe Suite C. after the upgrade to El Capitan on an iMac?

  Someone at - it problems with Adobe Suite C. after the upgrade to El Capitan on aiMac? What did you do about this? What helped?

  In case you downloaded the Apple Stroe Yosemite, it always can be downloaded in the section of your account purchases.

• Limitations of architecture with replication of VM with physical RDM Mode

  What are the Limitations of Architecture with replication of VM connected with physical RDM Mode in vsphere replication. Why VMware does not support this?

  I will add some colors to the response of GS. A particular interest with regard to the physical path RDM (pRDM) works, summarize these two chips of the article:

  • Physical mode specifies minimal virtualization SCSI of the mapped device, allowing greater flexibility for SAN management software.
  • VMkernel passes all SCSI commands to the device, with one exception - the REPORT LUNS command is virtualized, so that the VMkernel can isolate the LUN to the virtual machine owner. Otherwise, all the physical characteristics of the underlying hardware are exposed.

  There is an integrated in vSphere vSphere (RV) replication agent that has several functions. In particular, she keeps track of the Scriptures to the virtual machine. When a replication cycle occurs, the changed data is replicated to the target location. The VR agent should be able to 'see' These Scriptures to follow. Given that the physical mode all SCSI commands directly to the device, the VR agent is unable to follow these changes for replication.

• PvSCSI adapter for physical RDM expandable disk using?

  Hi all

  Can anyone here please indicate if the scenario below is supported for RDM physical disk with the extensible feature in the future?

  R2 Windows Server 2012

  Physical RDM: NTFS table partition GUID 2 TB which can be expandable to 12 TB + in the future

  SCSI controller: pvSCSI SCSI 1:1

  Because the KB article: VMware KB: configuration of disks to use VMware Paravirtual (PVSCSI) SCSI adapters says:

  • Do not use the PVSCSI on a virtual machine running Windows with split volumes. Data may become inaccessible to the guest operating system.

  
  

  Thank you

  If you use physical (amp) RDM, why would you use volumes split inside the guest?  You present a lun 12 to large or smaller and covering inside the guest OS?

  Depending on the version of vSphere you use, this article might help you: how much storage maybe I present to a Virtual Machine? VMware vSphere Blog - VMware Blogs

• Independent drive persistent and physical RDM Mode

  Hi all

  Need your opinion on taking snapshot backup in option of the few VMs via NBU 7.6

  We intend to resume via auto-created snapshot NBU, but is that all VM have persistent independent drive along with some VMs have physical RDM Mode.

  I am aware that the physical RDM mode supports not instant, but is independent of the persistent drive?

  Thank you and best regards,

  Shrikant Germain

  The IIRC snapshots are used when cloning a virtual machine under tension.

  André