MSCS (cluster across boxes)

Similar Questions

• MS failover clustering Windows 2012 R2 on ESXi 5.5 overall of boxes (Cluster in boxes)

  Hi all

  Sorry if this noob question. I did search but geeting contradictory information.

  I want to install MSCS (using W2K12 R2) on the two machines of ESXi 5.5. I shared the storage through CF. It seems that doing CAB (Cluster across boxes) I have to configure my disks shared as RDM. I was wondering if I can do this with a simple shared VMDK disk. The VMDK disks reside in a shared data bank (Fibre Channel).

  Is this supported? Or a simple shared VMDK disk is supported only for the CIB (Cluster in a box)?

  Thank you!

  fix. Together in a box, it will work.

  Cluster in the box, you still need physical rdm mode (scsi controller).

  -A

• Poor with RDM only when added to the CAB MSCS cluster performance

  Hey guys, thanks for taking a peek at this question... I'm looking for some ideas.

  I have 2 virtual machines running Windows 2008R2.  They put MSCS in place and works as a taxi (cluster across boxes).  I use a 7500 VNX, fiber channel and RDM physical drives.  Is on an 8 node ESXI 5.1 v1117900 implemented.  Functionally, everything works fine.

  The problem is that the performance is very poor on only the RDM that have been added to the MSCS cluster.  I can take the same drive, remove the cluster, run IOmeter and it's fast.  I add to the cluster, MSCS, leaving in storage, and it is 1/15th the IOPS performance / s.  Remove the drive of MSCS and it goes back to when you run as usual.

  I tried different controllers SCSI (LSI Logic SAS vs Paravirtual) and it doesn't seem to make a difference.  I have physical MSCS clusters that do not seem to present this kind of performance problem, so I wonder if it was not something goofy with the MSCS on the configuration of virtual machines.

  I've already implemented in this article: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1016106

  I saw this poor bus rescan the performance issue until I put the RDM perpetually booked, but it was not a problem since I implemented the fix.

  For any help or suggestion is appreciated...

  Thank you

  -dave

  Recently, I upgraded my esxi from 5.0 to 5.1 environment and have a bunch of systems with RDM. I had a problem as well. What I found, was that during the upgrade it changed all the policies of path to the LUN and rdm, it's the turn of robin. This causes a huge performance issue in my environment. I changed all the paths to MRU and it solved the problem.

• Cannot open Device Manager or services.msc a message box pops up it says "MMc cannot open the file C:\Windows\system32\devmgmt.msc.

  Original title: I can't connect to my wireless network. My convenience store does not work and I can't open the network and sharing Center. I'm sure it's some type of virus. Help, please.
  It says "an unexpected error has occurred. The Troubleshooting Wizard can not continue. "When I try to run the troubleshooter.

  When I try to open Device Manager or services.msc a message box appears, it says "MMc cannot open the file C:\Windows\system32\devmgmt.msc.

  He said also my Defender pro subscription has expired, even if I've just recently added a one year subscription.

  Hello

  You did changes to the computer before the show?

  Method 1:
  Try these steps and check if it solves the problem:
  a. click Start, type cmd, right click and select run as administrator.

  b. at the command prompt, type regsvr32 msxml3.dll , and then press ENTER.

  Method 2:
  Auditor of file system (CFS) scan to fix all of the corrupted system files. To do this, follow the steps mentioned in the link below:

  How to use the System File Checker tool to fix the system files missing or corrupted on Windows Vista or Windows 7
  http://support.Microsoft.com/kb/929833

  Method 3:
  Run a Microsoft security scanner to make sure that the computer is free from virus infection:
  http://www.Microsoft.com/security/scanner/en-us/default.aspx
  WARNING:
  If you run the antivirus program that is infected by the virus scan will get deleted. Therefore, reinstall the program. Also if the files and folders are affected by the virus, while they might even get deleted

  See the steps in the link and check.

  Windows wireless and wired network connection problems
  http://Windows.Microsoft.com/en-us/Windows/help/wired-and-wireless-network-connection-problems-in-Windows

• Cold migration of MSCS cluster node clients?

  Work on the establishment of a MSCS cluster on 2 hosts.  The hosts are the ESXi 5.5 build 1892794.

  My shared disks are RDM compatibility mode physical that I have attached to a second SCSI controller in physical sharing mode.

  My cluster validation wizard is successfully completed.

  However, if I turn off the guests, everyone migrate to a different host (with FC to the RDM LUN connectivity), turn on and then run the cluster validation Wizard error e/s disk wizard reports on tests of arbitration and failover.

  I learned that when I see these mistakes I can unsubscribe the VMs, detach the storage from the host, restart the host, attached storage, re - save virtual machines, and then validation is successful.  However, it is a bit complicated and if I say lose a blade and need to put one of my guests node elsewhere, I want to do without the time and hassle.  Is this possible?

  I know vMotion is not supported with the physical bus sharing, but this ban applies to cold (power off) so migration?  Or is this an indication that I screwed up my configuration?

  Any thoughts would be great.

  Thank you

  Here's what VMware has sent:

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

  -A virtual machine that has a ROW in a MSCS cluster connected in physical compatibility mode cannot be vMotioned.

  -Even if you do a cold vMotion (stop the virtual computer, then vMotion), the ROW could be detected as vmdk and you may need to remove
  She and present it back or re - enter as you mentioned.

  -Best practices recommend Vmware are that - before the migration, remove the ROW of the virtual machine, and then migrate the virtual machine. Once the
  VM was vMotion, then you can attach the RDM to the virtual machine.

  Unfortunately there is no work around on this
  scenario.

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

  So I guess the cold, you can migrate the MSCS cluster nodes but sometimes it does not work quite as well and so its best to remove the ROW before migration cold.

  Thanks to all who have posted!

• Reboot ESX with MSCS Cluster nodes

  Hello

  I have an ESX Cluster that must be restarded. This host cluster to a MSCS Cluster (without recommendations affinity VMWARE DRS...).

  What is the best practice?

  -Keep maintenance mode, as the other VMS running vmotion or,

  -Set the DRS affinity as soon as possible and the node of MSCS Cluster stop when necessary (only comments stop or other actions to do before?) or,

  -Any other idea?

  Thank you

  Should not able to vmotion for DRS wikll MSCS cluster node does not work - strting with the ESX host that has the standby node place it in Maintenance mode and manually knew node MSCS nodes - restart the host ESXi get node maintenance - once it is up and the lcuster MSCS is stable - the main failover node MSCS and shute to the bottom of the virtual machine - place this host ESX to Maintanance mode allowinf DRS to evacuate VMS running - restart the ESX host brings the VM MSCS back up and replace the workload in this node MSCS.

• Number maximum official virtual computers Win2k8 supported in a MSCS cluster

  Please can someone point me on the official document or an answer to the following questions:

  • What is the maximum number of Windows 2008 virtual computers based supported in a MSCS cluster (based on vSphere 4.x cluster)

  • more generally, what is the maximum number of Windows 2008 virtual computers based supported in a MSCScluster (based on any cluster ESX/ESXi)

  All the documentation I've seen only speak of 2 nodes (and other sources mention that only 2-node MSCS clusters are supported by VMWARE), but I want a definitive answer to VMWARE or documentation that specifies the maximum number of VMs of Windows 2008 that can be in a MSCS cluster hosted on ESX/ESXi clusters.

  Thank you.

  All the documentation I've seen only speak of 2 nodes (and other sources mention that only 2-node MSCS clusters are supported by VMWARE), but I want a definitive answer to VMWARE or documentation that specifies the maximum number of VMs of Windows 2008 that can be in a MSCS cluster hosted on ESX/ESXi clusters.

  The documentations are correct. Even though you may be able to create a cluster with more than two nodes, the supported limit is 2 knots.

  Take a look at MSCS documents to http://kb.vmware.com/kb/1004617

  literature vSphere 4.1 (page 34):

  Table 6-2. Other requirements and recommendations of Clustering

  ...

  Windows - only two cluster nodes.

  André

• Virtual MSCS Cluster physics to physics of MSCS Cluster passing

  I have a MSCS Cluster of SQL running on Windows Enterprise Server 2003 2000. I need to move nodes in this cluster as a virtual machine. I have searched using a variety of terms and read a few large documents, including vi3_vm_and_mscs.pdf, but I have not found a single shot high level or low level description of the steps that must be taken.

  So far, I have has all the cluster resources to node in the cluster physical and used Converter P2V Enterprise the other node. It worked well. I must now get the quorum drive and other shared drives seen by the new virtual machine. I know that this will require of RDM, but I wonder if there are traps, that I should be aware, or if there is a white paper or a best practices document detailing the process of virtualization of a node of an MSCS cluster direct.

  Any help is greatly appreciated.

  You will have to:

  The LUNS of existing data/quorum at the zone ESX Server

  Rescan your ESX storage adapters

  Stop the virtual machine, you want to add the ROW

  Add a disk, raw device mapping, physical compatibility mode, select the Lun you zoned in, find the SCSI ID, select 1:0. This will create a new SCSI adapter

  Change the new physical to be bus SCSI adapter shares

  Start your virtual machine, and you should be able to see the new drives

  -KjB

  Post edited by: kjb007: adding LUN Info

• MD3000, 1 physical node, 1 guestm - via MSCS cluster vm

  Hey all,.

  New to VMware, 5 days or more.  Had no problems until the cluster of files.  I read a lot of suggestion on the site before joining, but curious experience to relevant question.

  2 knots 2950, md3000, MSCS - all good

  Off of passive node

  Configured VM Guest, added Vswitch for physical nic, these NICs to the guest. (did not VMkernal to create the switch as if I did it, on behalf of the network, my created switch was not available in the drop-down list) I thought I had to creatre switch VMkernal for NFS to work... for the connection to the MD3000.

  So, added the static IP to nic on guest, a LAN, a cluster link. Added to the cluster - success

  Reanalysis in and SAS5E listed in ESX adapeter. and displays the LUN on current MD3000 3 which I would like to connect.

  Now its time for RDM... correct?

  When you try to mount LUNS to guest, no available RDM... it is grayed out?

  Said also that it is due to the md3000 already data container and NTFS already.

  Any suggestions on this played out scenerio is appreciated.

  G

  For MD3000, the only solution is the first: create (or add) a Virtual disk, give the host, rescan storage adapters and add the raw disk to the VM node.

  See also http://www.vmware.com/pdf/vsphere4/r40/vsp_40_mscs.pdf

  André

• MSCS cluster on hosts cannot find Quorum RDM

  Have Setup 2 x W2K3 for MS Cluster nodes, network connections configured and assigned a RDM 1 GB formatted as NTFS disk Basic. Second node can connect to 100% to the same storage and networking - 2nd node was set offline.

  When you configure the pool, it cannot locate a Quorum disk even if there are drive Q: RDM sitting there. Says "'the quorum disk could not be located by the cluster service". " I took care to configure the network elements before storage so I do not have a signature of disk set-config.

  Anyone has any suggestions I can try?

  Andy

  I have installed recently 2 MSCS each with 2 nodes.  2 things I discovered during the process was first to add the RDM readers for only 1 node first.  Get the first installation of the node added to the cluster and add the disk to the second node and add it to the cluster.  The second thing I discovered was to store the RDM file on the shared storage.  In my view, that it says store with VM or the data store.  Select the data store, and the store of data that you want to save the file.  To add the disk, make sure you select Add existing disk and that it points to the location of the first node and the *.vmdk the quorum disk and data.

  You must also make sure that each node is configured to use a new SCSI (1: #) and that each node has the same disc using the same number of SCSI.  In addition, SCSI mode must by physical if I remember corrctly in the documentation.

  I hope this helps.

• Add RDM existing computer virtual MSCS cluster 2

  I read one thread of June 2015 on this subject, but I do not understand.

  I have to add 22 existing RDM disks in 2 VM with MSCS.

  The manual task takes 1 hour. With the first VM executes quickly, but with the second takes more time. I understand he's checking something on each disc.

  I want to write a script on PowerCli to make more quick step.

  I have to read a csv file with all the info (the path of disk and controller being used) and put it in some way.

  Please, can someone help me?

  Thank you very much!

  If you want to generalize this and add with the values that you want to define parameters, you can do something like that.

  You may want to turn this into a function

  $vmName = "MyVM.

  $ctrlrName = "controller SCSI 2'

  $hdPath = "ZVMPRUEBA1/ZVMPRUEBA1_1.vmdk [DSEMERGENCIAS] '.

  $unitNr = 4

  $vm = get-VM-name $vmName

  $ctrlr = get-controller SCSI - VM $vm - name $ctrlrName

  $spec = new-Object VMware.Vim.VirtualMachineConfigSpec

  $spec.changeVersion = get-Date-Format (Get-Culture). DateTimeFormat.UniversalSortableDateTimePattern

  $devSpec = new-Object VMware.Vim.VirtualDeviceConfigSpec

  $devSpec.operation = 'Add '.

  $dev = new-Object VMware.Vim.VirtualDisk

  $dev.key = - 100

  $back = new-Object VMware.Vim.VirtualDiskRawDiskMappingVer1BackingInfo

  $back.fileName = $hdPath

  $back.diskMode = "persistent".

  $dev. Backup = $back

  $connect = new-Object VMware.Vim.VirtualDeviceConnectInfo

  $connect.startConnected = $true

  $connect.connected = $true

  $dev. Connectable = $connect

  $dev.controllerKey = $ctrlr. UnitNumber

  $dev.unitNumber = $unitNr

  $devSpec.Device += $dev

  $spec. DeviceChange += $devSpec

  $vm. ExtensionData.ReconfigVM ($spec)

• Essbase in MSCS Cluster (metadata and data load failures)

  Hello

  Is there a power failure on the active node of the Cluster Essbase (call this node A) and the Cube needs to be rebuilt on the node of Cluster B, how the Cube will be rebuilt on Cluster Node B.

  What will orchestrate the activities required in order to rebuild the Cube)? Both Essbase nodes are mounted on Microsoft cluster Services.

  In essence, I want to know

  (A) Comment do to handle the load of metadata that failed on Node1 to Node2 Essbase?

  (B) makes the continuous session to run meta-data / load on the Second knot, Essbase data when the first node of Essbase fails?

  Thank you for your help in advance.

  Kind regards

  UB.

  If the failover product then all connections on the active node will be lost as Essbase will restart on the second node, just treat the same as if you restarted the Essbase service and had a metaload running that it would fail to the point when Essbase breaks down.

  See you soon

  John

  http://John-Goodwin.blogspot.com/

• Cannot configure a two-node MSCS cluster.

  Server configuration iSCSI by Starwind 5.4 on Win7 and Win two, 2003 virtual machines as nodes in cluster on vSphere 4.0. Using Starwind how to configure the Quorum and another disk shared between 2 virtual machines. The path that is on each virtual machine by the Microsoft iSCSI initiator to get both drives shared directly from iSCSI Server (win 7).  When configure a cluster on a node, download info on photo 1, check the yellow error, got the image 2. At the end of the installation, download the info from the error: the network path is not found (photo 3), check the logs of the Win system, download the info on photo 4. Before and after her, with check the 3 NICs IP network and ping them, all of them are good. After putting new IP Address/subnet mask on the network cards that are for the beats, the problem is still there.

  I'm confused what is wrong. Is it a problem that the pulse line connects via a vSwitch without physical NETWORK card as Microsoft says heart rate must be connected directly?

  I don't think it would be a network ESX problem since all your NETWORK cards are online and respond to pings.   I am curious about your first screen printing where the cluster cannot be brought online due to the INVESTIGATION period is already on the network.   Is it possible that the IP address is in use elsewhere on the network?

  I'll move this thread to the VM forum and the guest operating system to see if anyone can help troubleshoot the configuration of comments.

  If you have found this device or any other useful post please consider the use of buttons useful/correct to award points

  Twitter: http://twitter.com/mittim12

• Cluster across several sites (SAN)

  I was wondering if it is possible to have a single virtual HA environment, spread over two sites?

  We are looking to install two ESX servers in one building and two in another. We already have fiber connections between sites. We would like to have a unique virtual environment with VMotion, etc, I'm not sure if SAN technology is available which will provide a unique storage on two sites volume?

  The last SAN, I worked with had a 7 min cycle between the sites, so a single cluster replication was not an option.

  Any advice would be much appreciated.

  MRX.

  Hello

  With 15KM you just might be able to consider using synchronous replication. Data loss = 0 in this case. However, the delay in the 15-KM line is significant (if we consider that each entry must go the line twice, before writing is actually finished on two tables).

• Cluster MS with VMFS - why only Cluster in a box of decision-making support?

  Hi all

  Ive been reviewing the KB of Microsoft Clustering on Vmware here: -.

  http://KB.VMware.com/kb/1037959

  https://www.VMware.com/PDF/vSphere4/R41/vsp_41_mscs.PDF

  And noted that VMFS is taken in charge for shared storage, but only clustered in a box configuration, so that the two nodes of the cluster are on the same physical ESX host.  Anyone know why this limitation is in place?

  Why can I not have a VM on different ESX host?

  See you soon

  Stewart

  It has to do with the fact that two ESX / / ESXi hosts cannot access a VMDK at the same time - that of why a Cluster across Boxes can use a VMFS fo the VMDK quorum data store and data shared VMDK.