Similar Questions

• API to enable Fault Tolerance

  My BR request, I have to turn off FT in order to take a snapshot of the virtual machine. I found API TurnOffFaultToleranceForVM_Task to disable FT for a virtual machine. But I see no API to turn back on again. Why is there not an API to turn FT.? Is it possible that I can do this?

  Thank you

  Parag

  For the management of fault tolerance, you will use the following methods:

  CreateSecondaryVM_Task() (for a virtual machine to configure FT)

  EnableSecondaryVM_Task() (turn ON FT for a virtual machine)

  DisableSecondaryVM_Task() (disable FT for a virtual machine)

  TurnOffFaultToleranceForVM_Task() (turn OFF FT for a virtual machine)

  You can take a look at this script that I wrote to manage the IP: ftCLI.pl - VMware Fault Tolerant Managment

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

  William Lam

  VMware vExpert 2009

  Scripts for VMware ESX/ESXi and resources at: http://engineering.ucsb.edu/~duonglt/vmware/

  repository scripts vGhetto

  VMware Code Central - Scripts/code samples for developers and administrators

  150 VMware developer

  Twitter: @lamw

  If you find this information useful, please give points to "correct" or "useful".

• Fault tolerant on VMware linked clone Desktop

  Hello

  someone may answer whether it is possible to enable fault tolerance on linked clone VM to a master, through composer.

  Client wants to protect in this way, hundreds of virtual office, I thought about using a channel 10 gigabit for the communication of FT logging, that think u dou everything?

  Thank you very much

  First off it is only recommended to have 4 FT running for each host, so would need you 25 hosts make 100 mV.

  Secondly, I am sure that this is taken care with view.

  Thirdly, also sure FT requires full VMs, clones and unrelated, so your cost of SAN will rocket sky.

  Fourth and this is my favorite, it is exteremly high Windows going down until your host blocks (ESX breaks down).  FT no help even in this situation as if OS1 block him operating system on the other server will crash at the same time.

  FT is designed for mission critical Server VM, not of VDI.

  Gunnar

• VSAN 6.2 'method of fault tolerance' is not available

  Hello

  I installed 4 6, 0u2 ESXi hosts, each equipped with 3 flash devices and a VCVA 6.0U2

  I built the VSAN cluster without activating dedup and compression.

  But when I try to build a raid5 storage strategy, I can't find the parameter of the method of fault tolerance to allow coding of erasure with RAID5,

  I found the after fault tolerance method parameter enabled dedup and compression.

  Is this good?

  It's surprising. I have 60U2 basic vsan cluster where I am able to see 'Method of fault tolerance' the two option of raid 0 and raid 5/6 without activation of compression and deduplication.

  Can you confirm that you have all the flash disk group when you tried this option

  You can logout/login to the webclient service and check if you are able to see (there is a known, documented problem where some of the policies will not be visible unless you disconnect/connect back to the user interface)

  Was it installed or upgraded charges. If you upgrade, you did the upgrade of the disk version. I think that features will not appear if the upgrades of the disc are not (and automatically activating dedup/compression is an upgrade of the disk)

• 6.0 Update 01 vSphere fault tolerance

  Hello everyone,

  I have a problem whene I activate Fault Tolerance on dv01.

  It is the configuration of my physics

  • 2 ESXi 06 update01 build 3073146
  • 1 cluster HA active
    • Ordered admission disabled
    • Disabled DRS
  • 1 with port configuration of vMotion group vDS
  • 1 starndar vSwitch for Fault Tolerance with 2 x Intel® Ethernet Converged Network Adapter X 520 - T2 10 Gbps
  • e

  Dv01 Config

  • 4 vCPU
  • 3 ramdisk stored a first shared data store datastore01 1.35 to:
    • Reset Eager 136 GB Thik provisioning
    • 500 GB Thik provisioning eager to zero
    • 600 GB Thik provisioning eager to zero
  • connected to the port vDS group 1 VMXNet3 network adapter
  • latest VMware tools installed
  • Guest OS Windows Server

  When activated the fault tolerance, I chose the ESXi02 and second datastore02 shared data store 1.28 at: the vmdk and vmx file is created successfully and I free 44Go on the datastore02 of a second.

  But whene I try to turn on this dv01 I have this error

  • vCenter car not power on the secondary VM
  • and whene I look on the event, the error is not "enough space for the secondary virtual machine."

  Can someone help me, please to fix this whene I enabled FT on litle VM02 with 1 thin vdisk, is working but for dv01 is not work

  THX in advance

  Best regards

  Hi DZinit,

  The computation of the space you need on the second data store, you take the file vswp into account. This will generate enough to on and be equal to the size of RAM allocated to the VM.

• Protect both virtual machines with features of ESXI fault tolerant clustered disk

  Hello world

  I read the following:

  VMware vSphere with operations management: fault tolerance | United States

  The line that interests me is:

  "VMware vSphere® fault tolerance (FT) ensures the continued availability of the applications in the event of server failure by creating an instance of live snapshots of a virtual machine that is always up to date with the first virtual machine. In the event of hardware failure, vSphere FT triggers automatically failover - ensure no interruption of service and prevent data loss. »

  Question:

  FT can protect both virtual machines that share disks in a cluster configuration? (A cluster SQL instance for example)

  FT can protect both virtual machines that share disks in a cluster configuration? (A cluster SQL instance for example)

  No, you can't, because there is an incompatibility with FT.

  Refer to the documentation for all requirements and interoperability: interoperability of fault tolerance

• Espacio clubbing of fault tolerance

  Hola, tengo una duda con Fault Tolerance y con el espacio en disco Québec debo asignar al ESX, quiero crear una Máquina virtual y quiero asignarle UN disco 50 GB means that Québec asigar 100 GB al ESX tengo para as h. el Fault Tolerance?

  Hello that tal!

  in any case necesitaras el espacio en disco doble para enable FT.

  Al activar FT to crea una Máquina virtual espejo as it requires the same amount of cpu resources y memoria as the mv than estas thing, but in any case storage adicional requieres.

  Saludos

• XEON X 3210 fault-tolerant

  Hello

  I have a Dell PowerEdge 840 and 860 servers, they are also supposedly compatible with ESXi and vCenter.

  I downloaded the trial version of vCenter Server and ESXi and wanted to build a cluster.

  Unfortunately, this is not possible because it supports the CPU is not a fault-tolerance.

  These and the following hardware configurations

  Dell PowerEdge 840 and 860
  
  CPU: Intel Xeon X 3210 with VT turned on in the BIOS.
  RAM: 8 GB / system
  Hard drives: Dell 840 GB RAID 10 4 x 320
  Reference Dell 860 1, 2 x 500 GB RAID
  System: ESXi 4.10, 381 591
  VCENTER 4.1 345 043
  Network: a network of 100 MB of Internet traffic map
  and a single 1000 MB card for traffic network.

  According to Intel, the processor over VT is supported.

  
  Thanks for the help in advance.

  ICH verfuge über einen Dell Poweredge 840 und 860 server, sharp auch angeblich scripte sind mit Vcenter und ESXI.

  ICH habe mir die Testversion von Vcenter Server und ESXI runtergeladen und ein Cluster can actually wanted.

  Leider ist dies nicht possible, da die CPU´s keine Errortolerant unterstuzten.

  Es sich und die following Hardwarekonfigurationen more

  Dell Poweredge 840 und 860
  
  CPU: Intel Xeon X 3210 mit aktivierten VT im BIOS.
  Arbeitsspeicher: 8 GB I system
  Speaker: Dell RAID 10 4 x 320 GB 840
  Reference Dell 860 RAID 1 2 x 500 GB
  System: ESXI 4.10, 381591
  VCenter 4.1, 345043
  Netzwerk: I eine Netzwerkkarte 100 MB as Internettrafic
  und I eine Netzwerkkarte 1000 MB as den internal traffic.

  Laut Intel hat der oben genannte Prozessor auf support VT.

  
  Vielen Dank für die Hilfe im Voraus.

  3210 x is not supported for FT. http://KB.VMware.com/kb/1008027

• Fault tolerance switch port guidelines

  I am setting up our lab to test fault tolerance. I plan to use a vSwitch sperate isolated FT and separate FT VLAN. Are there specific indications for siwthc trial paramΦtres I can give to my network group. I want to just make sure that the physical ports are configured before idelly I start testing.

  I didn't know that your plan was to use vSwitch dedicated only for FT traffic and nothing else.

  So, I recommended that you use the "load-driven" (new feature in 4.1) for a better distribution of traffic between natachasery on vswitch but also for network IO contol to partition the link between the different types of traffic. But you are right, as long as the vswitch is dedicated for FT, no need to use it.

  The extent of the Cisco switch port config, if you run the two natachasery to the same switch, you can use etherchannel, although the single link 1 Gbit/s is more than enough for traffic FT. Also, I recommend to enable portfast on ports involved to avoid any interruption when other devices added to the network, triggering the spanning tree protocol recalucations.

  For traffic to

  distribue distributed by grouping network adapters, configure the virtual switch through which the logging

  traffic flow on the road based on IP hash policy. This strategy uses

  source IP address and destination of traffic flows to

  determine the uplink. Pairs of feet between different hosts ESX employ more than

  a pair of source address and destination for logging of FT.

  To use the route depending on the hash IP policy, the physical switch ports must be configured etherchannel mode.

• Heartbeat vs Fault Tolerance

  In my environment, we have a single server vCenter Server (4.0) running in a virtual machine in a HA / DRS cluster.

  My question is: if my license level includes the fault tolerance, couldn't accomplish the same protection of my vCenter server using FT instead of heart rate? I realize that Heartbeat is more likely for installations with MORE than a vCenter, but given that I only have one, I'm I right in thinking this?

  Just think...

  Hello.

  There is a good discussion about the use of FT for vCenter here.

  Good luck!

• SAN multisite and VMware Fault Tolerance

  Hello

  My apologies if this is in the wrong section.

  I have a requirement for the two main rooms, with SAN and ESX hosts in each room.

  In total I have, for the sake of arguments, 200 VMS, with a split 50-50, so 100 in each room Basic.

  I want to use VMware of fault tolerance for machines remain operational in the event of a major failure or the other room Basic.

  I think I can use Multisite SAN to do.

  Please see attached diagram fo what I want to do, I know that the diagram is not correct but I drew it fast just to try to explain the scenario.

  What I want to know (or have help on) is:

  Is it possible to use fault tolerance in this way have no downtime in the result of a failure of basic room? (basic rooms are not very remote and use the same networks)

  How does multi-site SAN work, are there articles I can read to help me understand this?

  Multisite perhaps SAN iSCSI or fibrechannel?

  Thank you.

  SAN should resemble a single San for all ESXes. It doesn't matter how you do it.

  > If I my synchronous SAN mirror, might simply use FT for the vcenter as well?

  It is possible for the small environment. In general, vCenter requires 2 vCPU, while FT works for uniprocessor VMs only. But do not overestimate FT, it is not a universal solution and the universal answer.

  > Also with FT, can you specify the server host in the cluster to act as the secondary?

  Directly - no. The only way - to create link VM to any resource that is available for 2 ESXes only.

  ---

  MCSA, MCTS, VCP, VMware vExpert 2009

  http://blog.vadmin.ru

• VM vs VCB Backup fault tolerance?

  Hi all

  I'm looking for your suggestion and advice in using the Local SATA-II empty unused for my virtual machine data store.

  I have the following ESXi 4.0 build 164009 and a valid license of vSphere Essentials license, so I could use VCB, but the problem is that using NBD of the SAN in the backup server is much too slow :-| it took 55 hours to backup the whole score of VMFS 1 TB.

  and now, I think that rather than using the backup solution is it possible to clone the virtual machine on the

  fly to more than 2 store data such as cluster service fault tolerance? (in this case to the business data store and the)

  SAN_VMFS) in case there is a failure in the SAN, the virtual machine can run the

  Local data store

  Kind regards

  AWT

  Backup VM with VCB, backup system disks together just with VCB and backup of the data with the specialized software. For example if you have Oracle - place Oracle DB on another VMDK/RDM and backup tools with Oracle via 1Gbit link.

  Fault tolerance requires SAN and saves you more failure of the host only, not SAN failure.

  ---

  VMware vExpert 2009

  http://blog.vadmin.ru

• You can install vCenter as a virtual machine with fault tolerance

  The benefits of having vCenter as a virtual machine are features such as HA and snapshots, is there a problem with having a fault tolerance enabled on a virtual machine that is the vCenter server to manage fault tolerance?

  He couldn't see in the documentation for fault tolerance limits

  Well...

  vCenter lists 2 CPUs as required and FT only works with one...

  -Matt

  VCP, vExpert, Unix Geek

• NEITHER 9852 communication with fault tolerant CAN materials

  Hello

  I have a cRio 9074 and recently bought a module NI 9852 2-port low-speed/fault-tolerant CAN.

  It's my first attempt at network comms in cRio and I realized that none of the devices with that I want to communicate are immune to failures and fault-tolerant physical layer requires different endings to 'normal' high speed MAY (immediately after I broke the seal on the box, of course!)

  Is it possible that I can configure the physical layer for this configuration to work reliably (alebit to)< 125="" kbps="" and="" with="" no="" fault="">

  Kind regards

  Chris

  I'm sorry. The low speed / transceivers and breakdown-tolerant high speed MAY use different communication protocols.

  HS CAN is recessive when CANH and CANL are both to nominally under 2, 5V. It is dominant when CANH is 3.5V and CANL is 1, 5V.

  LS CAN is recessive when CANH is a CHANNEL and 0V to 5V. It is dominant when CANH is 3.6V and CANL is 1.4V.

  You can see that they are almost the same for the dominant, but different for recessive. In addition, the sequence of end between two buses is different. For a HS-bus, you usually resistance 120 ohm between CANH and CANL at both ends of your bus.  A bus of the LS, you have a terminating resistor separate for CANH and CANL (for RTH and RTL).

• Fault tolerance of CAN 'high speed '.

  There is a lot of information on "Low Speed CAN" being "Fault tolérant."  In other words, every time CAN - H or CAN - L is shorted to either on the ground or + 12v, the other non-court-circuit CAN online will continue to work, but with the problems of timing and reduced immunity to noise.  But there is an absolute lack of information on the high-speed CAN fault tolerance (i.e., 125 kb/s speeds).  And if one wants to face that at high speed is as Fault Tolerant as SLOW, why then isn't high speed MAY also deemed "Fault Tolerant"?

  Can someone point me to an ISO document or other official document that specifically speaks to about high-speed CAN and what happens when lines CAN be is shorted to ground or + 12v?  I need a 'official' source of information on this subject, not only his own personal experience or hear - say.

  Thank you.

  ISO 11898-2: 2003 should be a good source for an official response

  http://www.ISO.org/ISO/catalogue_detail.htm?CSNUMBER=33423