DRS cluster resource allocation and CPU

Similar Questions

• Get-Cluster execution memory and cpu details

  I am writing a script to generate graphs based on average use memory and cpu during the previous month, but I'm doing it for each cluster itself without explicitly naming them. The graphic bit side (I use mschart or googlechart for this) I just need to get the actual statistics and it's the bit that I have a problem with because everything I see with my research pulls the individual information of the VMs or the hosts in the cluster.

  I am looking for two values in each case - the name of the cluster and average use. But the use of the average for the overall Group and not the indivdual VMs.

  I was watching this:

  script of PowerCLI to capture cpu usage statistics & mem

  But that you use hosts.

  I have attached a picture of something that I'm looking, red line on average in percentage and the blue line on average in megabytes. It has been exported from the vcenter however. I'm just trying to save time.

  Thanks in advance

  For a data point average per day, you can simply add -interval 86400 education Get-Stat:

  Get-Stat - entity (Get-Cluster Cluster) - Stat $metrics - start $start - finishing $finish - interval 86400
  Instance of MetricId Timestamp value unit
  --------                ---------                          ----- ----     --------
  CPU.usagemhz.Average 14.05.2014 02:00 MHz 4298
  CPU.usagemhz.Average 13.05.2014 02:00 MHz 4109
  CPU.usagemhz.Average 12.05.2014 02:00 MHz 4163
  CPU.usage.Average 14.05.2014 02:00 10,74% *.
  CPU.usage.Average 13.05.2014 02:00 10,27% *.
  CPU.usage.Average 12.05.2014 02:00 10,41% *.

  Note that it may not include the values of the last day, since the rollup database for daily statistics task has not yet executed.

• Error in the extension of resource allocation and org vdc

  Hello

  I am facing problem when extending the allocation of resources (memory of GIG of 150 to 400 GIG. his saying ' on the 'Name' field validation error: string value has invalid format "and not extending resource.)

  Please tell me if everyone is facing the same situation.

  Thank you.

  I checked it is correct without problem by naming.

  in any case, I created an another vdc under this organization and moved resources from old to new org vdc. its working fine now.

  Thanks IamTHEvilONE

• DRS and Resource Allocation

  Hi all

  When to use the DRS and what should resource allocation. Because I have the impression that this has 2 contradicted each other. DRS allows VMs to use resources of other physical hosts right? And allocation of resources defines how a group must use the right?

  Welcome to the forums - they are not at all contradictory - don't forget the DRS is desigined to ensure that virtual machines get CPU/memory resources they need. It does this by monitoring the consumption of resources on each host in the cluster and what host can provide these resources. Since a virtual machine can use resources form one host at a time, if another host has several DRS resources will be vmotion as VM to TI.

  Now, if you define resource assignments to the DRS VM will use these to determine what host will be better satisfy these constraints and requirements - and when the value of resources at a pool level that the elimination of cluster resources - you are really used to divide the resources in a DRS cluster to different groups - the best example this splitting resources between development/test and production so that the Test/Dev do not monopolize depriving them of resources production of virtual machines.

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• ESXi 5.1 - Exchange 2007 - file Page memory and CPU allocation

  I'm currently migrating a class Cluster CSC Exchange 2007 running on vmware on windows 2008, 2003.  It is also a SCC Cluster.  I followed all of the vmware and MS best practices, but not sure of one thing IM is the size of memory and CPU allocation page/swap file.  I have 5 Esxi hosts and each is running only Exchange 2007 comments according to vmware and MS recommendations when you use the Clustering of CSC.

  Each host has 2 CPUs to 6 cores per processor and 48 gb of Ram and that each host will have only a guest, would like to send it to the guest.  I read somewhere that it is recommended this page exchange 2007 memory size + 10 mb file.  Do I really need to get the page to the size of the file?  250 GB of disk space is a lot for swap files! IM also not sure what to set the allocation processor too.  If someone can point me in the right direction, I would be grateful.

  Thank you

  Dave

  Hi dlargeit,

  First of all, off - welcome to the VMTN forums!

  I'm with Josh26 I've ever seen any recommendations indicating that when a CCS cluster virtualization virtual machine by host is taken in charge. It is recommended to keep only a single node SCC by host (which is true for all virtual clusters or technologies like Exchange CSC/CCR/DAG), but there is nothing specific regarding the keep only a single virtual machine by host.

  On the file page, you are actually right on that.  For Exchange 2007, the paging file must be on the amount of memory configured as well as 10 MB to account for overhead costs of the kernel.  It is recommended by Microsoft and it is planned to provide enough space page Exchange should exchange more provide the necessary overhead if meet you a server failure and need to create a complete memory dump.

  You can find this recommendation here: http://technet.microsoft.com/library/aa996719 (EXCHG.80) .aspx

  In terms of CPU allocation, which should really be made according to your individual needs rather than just give all the resources the VM on the ESXi host.  Microsoft lists the maximum recommended for processor resources (Planning Processor Configurations: Exchange 2007 help) and it says that 12 hearts is the maximum for mailbox or Hub Transport box.  Is your really big enough environment need a lot of CPU resources?  Why not start small and increase it if necessary?

  You are in control of your own destiny in some of these configurations.  If you know the recommended page file size is 10 MB of RAM +, do not give the server more RAM is really needed, or you will have to pay for it in the consumed disk space to host the pagefile.  See the guide to memory resources (Planning Memory Configurations: Exchange 2007 help) to understand the maximum rates of memory for Exchange.  You will see that the maximum memory is 32GB, so there are very few reasons to assign all 48GB of RAM on your server, if it can even use.

  In short, the size of the server based on the real needs and I am confident, that you will have a virtualized Exchange system that performs as well as physical.

  Matt

  http://www.thelowercasew.com

• Correct allocation of resources to VM CPU with hyperthreading VCPU ESXI 5.5

  Hello

  I've read various articles on trying to size of the allocation of CPU for virtual machines and performance of subjects with overcommitting, but still can't seem to find a definitive answer with hyper threading involved for this particular configuration and hoped that someone could clarify for me.

  Example 1 - Exchange Server 2010

  1 x 6 Core Processor (12 logic with hyper threading)

  There are currently 1 socket and 6 hearts are attributed to him on a possible 12.

  There is only 1 virtual machine running on the server. I would benefit from an increase in the nuclei of one of the following:

  1 outlet, 12 hearts

  6 sockets, 1 core

  12 Sockets, 1 core

  any other configuration?

  Example 2 - server has 2 x 6 Core processors with Hyper threading enabled. (12 cores, 24 logic)

  I want to attribute 2 physical cores to VM1, VM2 4 physical hearts and 6 physical cores to VM3

  Who would do the following:

  VM1 - 1 taken, 2 hearts VM2 - 1 socket, 4 cores VM3 - carrots 1 Socket 6

  VM1 - 1 socket, 4 core VM2 - 1 socket, 8 cores VM3 - 12 hearts 1 socket

  VM1 - 2 taken, 1 core VM2 - 2 Sockets, Sockets 4 hearts 2 VM3, 6 cores

  VM1 - 2 taken, 2 hearts VM2 - 2 taken, 8 cores VM3 - 2 taken, 12 hearts

  VM1 - 2 taken, 1 taken VM2 - 4 kernel, 1 core VM3 - 6 sockets, 1 core

  VM1 - 4 taken, 1 core VM2 - 8 Sockets, 1 core VM3 - 12 Sockets, 1 core

  any other configuration?

  No, you can allocate more vCPU you have. what you said it is fine. I usually go for a ratio of 6: 1. for example, with 12 cores, we have up to 72 vCPUS (it's all compared to the workload type and the size of the virtual machine through)

  I said that you never allocate a unique virtual machine more than the physical cores as the guest on the virtual machine OS think there full hearts to play with no hyper threaded no carrots...

  But hyper threading can give use better ability to commit the resources of the processor because it intelligently uses the additional threads when the performance will not be affected. as long as all virtual machines will not work 100%, then you can add more with no real impact. If you have listed these 3 VMs had to use 100% each you'd be using 100% CPU host not 50%. never use logical cores when it comes to calculations of ability only physical cores

  See you soon

• Allocation of memory and CPU

  Guys,

  My question may sound trivial, but I need it to be clear.
  If I allocate a certain amount of RAM and CPU (without reservation) on some VMS, if virtual machines are not fully allocated amount, is used by other virtual machines.
  I am asking that more I VCOPs reports with a lot of oversized VMs and I also I know I must take measures to reduce the overhead of each virtual machine, I need to know if the memory and CPU are shared dynamically in case of needs of other virtual machines.

  Thanks in advance.

  Daniele

  Short answer Yes, if no reservation is defined, resources are allocated dynamically.  In case of contention, actions values will be used for the allocation of resources.  Virtual machines with lots of unused memory are taxed (income tax slowed) and claimed in a balloon.  The important thing is to know what the VM workload is running, and if VMs are memory aid for the contents of the cache, it is to say sql or exchange and these may consider oversized VMs.  Monitor the virtual machine during the period during the normal business cycle and the size of your virtual machines accordingly.

• Prices (not storage vmotion) vmotion, DRS (Distributed Resource Scheduler) features available in ESXi cluster?

  Prices (not storage vmotion) vmotion, DRS (Distributed Resource Scheduler) features available in ESXi cluster?

  I thought that ESXi is a correct free download?

  Yes and no. ESXi Hypervisor binaries are the same for all editions (free and paid). It depends only on the license key that you have what features are available and if you can add an instance of vCenter server host.

  If you just want to test vSphere, you can sign up for a free 60-day trial (no required license key) during this period, all the features of the 'Business Plus' edition are available.

  André

• Home put in service of a DRS cluster active mode NOT to trigger and automatic Vmotion

  I'm under 5.5 U2

  I have a cluster with active and defined DRS fully automated, but when I select the host for the maintenance mode of the VM NOT vmotion to another host in the cluster automatically. I have to vmotion manually each virtual machine to a host selected manually. There are a few VM with DRS off on them because they ONLY work on the host, they are assigned to (replication of virtual computer), but all the other VMS are defined 'by default (automated)'. Would it because I only have two of the host in the cluster?

  

  Try this.

  Hope it will solve your problem.

  http://www.vmwareminds.com/troubleshooting-maintenance-mode-process-get-stuck-at-2/

• DRS cluster: You can mix 4.1 ESX and ESXi 4.1?

  Not very complext, but we have a DRS cluster of 8 hosts x 3850 of IBM on ESX 4.1 and we will upgrade them both to ESXi 4.1 update 1.  There will be questions mixing a cluster of ESX and ESXi servers?

  Yes, 100% supported!  both are the same hypervisor, so you should have no problem running in the same cluster.  After all it is the best way to do a upgrade spread, and how we made our move between ESX and ESXi.

• Add hosts with existing virtual machines for 'Greenfield' active DRS Cluster

  I'm currently involved in a project for the hypervisor 5.5 and vCenter. Existing are 2 physical servers with redundant everything and 8 SAS hot swap hard drive bays. Initially, 8 bays only 4 have been populated with hard drives. Hard disks have been removed, ESXi 5.0 has been loaded, 4 virtual machines created on each server and all lived happily ever after.

  Now, I would like to upgrade these servers to 5.5... as follows:

  I filled the remaining 4 bays on each server with some hard disks and created a second strip of sufficient capacity (twice the capacity of the 4 original disks). I'm stop servers, past the stripe for starting a new band of readers and installed ESXi 5.5 on the new band. The old Strip also remains in tact, so that I can start to ESXi 5.0, if I set to boot from the original soundtrack or boot to ESXi 5.5 if I boot to the new band (two operating systems starts very well, are properly networked, configured vCenter, etc.).

  When booting in 5.5, he sees his own, new band and is also the soundtrack which is listed as a second data store attached (I think actually I want to make possible migration of the simple VM from the old to the new data store), both are disk space of LSI, Non - SSD, Type VFMS5.

  Panic sets in when I start both computers in 5.5 and the time comes to add 5.5 hosts in a cluster (I also want to test the vStorage DRS and HA) and I've reached the setting of the, "choose Resource Pool." I'm scared to death that choose the first option, "all of the virtual machines in this updated host in the cluster resource pool root. Pools of resources currently present on the host computer will be deleted. "will mean not only a reformatting of the new band which I would like to add to the cluster, but also the still attached old band that includes the data that I want to keep. I don't want to lose data or virtual machines on the soundtrack, but to migrate them in a cluster of 2 servers ESXi 5.5. I was really hoping to migrate data to new tapes on new hosts and then re - purpose boards 2 original (on both computers) as a third table vStorage.

  Issues related to the:

  1. If I choose the option "put all the virtual machines from the host in the pool of resources of the root cluster. Pools of resources currently present on the host computer will be deleted. "with all the drives connected, all my data will be lost?

  2. If I pull the 4 original disks (5.0) and use the option 'put all virtual machines from the host in the pool of resources of the root cluster. Pools of resources currently present on the host computer will be deleted. "that with the new arrays connected (5.5) and then reconnect the old paintings after that the hosts are added to the cluster, will be only the re added still get sucked into the tables and data deleted?

  3. choose the second option, "create a new resource pool for virtual machines from the host and resource pools. This preserves hierarchy to pool resources in. the host' a safe option? If this option works, no matter if I have my original array attached when you add hosts to the cluster?

  Last point: by reading all the documents I found it seems strongly suggested to set up guests who have not a deployed virtual machines, that's why I'm going to great efforts to try to keep the new hosts as empty as possible and with 1 port base networking while waiting to complete the configuration. Does it matter if I migrate virtual machines or add them as guests to the ESXi 5.5 before or after I have add hosts to the cluster?

  Any ideas or help would be greatly appreciated.

  I'd go with option C.

  VSAN I would agree has some stupid requirements, but that they were aiming for is almost class company SAN at a decent price by using the SSD as caching tables, but as you said if you don't need not good I would continue to go with a NAS NFS solution.

• default virtual machine resource allocation

  Hi all

  I have a host vmware with 64 GB Ram and 12x2.799GHZ cpu cores with 12 VCPU known as multithreading is not active

  When I create a virtual machine with the default settings (there is no reservation or limitation)

  (1) in the tab of the virtual machine resource allocation I see 4167 MB of memory host and 4096 MB of memory comments

  -Why the host memory is only about 4 GB so I have 64 GB of physical memory, which is displayed on the summary of the host tab

  -When I create a virtual machine with the default settings it should be able to use all the resources I'm wrong? in my case, it should be able to use 64 GB of ram

  (2) with the default settings, the virtual machine has only 1 VCPU

  -does that mean that the virtual machine will be able to use speed 1 VCPU? for example, if my vm has a lot of work and it may be necessary to use 3 GHz so I'll have to add virtual vcpu another machine? as the speed of a vcpu is 2.8 Ghz am I bad?

  -If I activate multithreading I 24 VCPU

  each vcpu speed will be (2.799 / 2)?  without active multithreading I have 12 vcpu each 2,799 GHz

  Please clarify for me

  Hello

  You asked a few questions, so that questions will be answered inline

  ) in the tab of the virtual machine resource allocation, I see 4167 MB of memory host and 4096MB of memory comments

  So I guess that you have created a virtual machine with 4 GB of memory (windows 2008 64 bit R2 virtual machine default settings). For this purpose of resource allocation tab 4 GB (4096 MB) of comments. The virtual machine is like a container, providing a configured together to programs and the operating system inside the virtual machine. If memory watch kernel scheduler is 4096MB is available for this customer.

  Now, the kernel needs to use little memory to run the virtual machine, it's called an airline booking memory and is in your case 71 MB, therefor the memory footprint of this virtual machine in the VMkernel (memory of the host) is 4096 + 71 = 4167 MB MB

  -Why the host memory is only about 4 GB so I have 64 GB of physical memory, which is displayed on the summary of the host tab

  This is because you have provided that the virtual machine 4 GB, it's the "use-space" for the virtual machine guest OS to run in. It cannot expand beyond the limit of the virtual machine.

  -When I create a virtual machine with the default settings it should be able to use all the resources I'm wrong? in my case, it should be able to use 64 GB of ram

  If there is no claim, where the demand for resources is less than the provision of resources, the scheduler memory is going to provide the virtual machine, the resources that it requires, and that can go up to 4096 MB, as this is the limit of the container.

  (2) with the default settings, the virtual machine has only 1 VCPU

  -does that mean that the virtual machine will be able to use speed 1 VCPU? for example, if my vm has a lot of work and it may be necessary to use 3 GHz so I'll have to add virtual vcpu another machine? as the speed of a vcpu is 2.8 Ghz am I bad?

  A vCPU runs on a physical basis and may not exceed, for this purpose if you need to have several cycles availble cpu for your virtual machine, you must configure the virtual machine with more than 1 vCPU.

  -If I activate multithreading I 24 VCPU

  each vcpu speed will be (2.799 / 2)?  without active multithreading I have 12 vcpu each 2,799 GHz

  A vCPU can be scheduled on a full physical core or on an element of hyperthreading (SMT), this is done by the VMkernel CPU scheduler. It is completely transparent for the virtual machine.

  Remember that the default settings are a few recommendations, they are not strict guidelines.

• MSCS on an active DRS Cluster HA?

  Hi all

  We are setting up a 6 host DRS activated cluster HA with a host as the host of the previous day. Two of our virtual machines will run MSCS cluster (with active and passive node). What we want is that:

  1 - Normal VM must be restarted on a host sleep by using cluster HA when an ESX fails.

  2 VM Normal should be vMotioned DRS decides.

  3 clusterises MSCS VM should restart on a host sleep by using cluster HA when an ESX fails.

  4 MSCS group of VM should not be vMotioned automatically. Must reside on the specific host.

  Are higher than 4 point if possible please confirm how we do. I'm a little confused that as per below document MSCS is not supported on active DRS cluster.

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1037959

  Kind regards

  Khurram Shahzad

  According to the doc of vmware, the installation program for the Clustering failover and Microsoft Cluster Service to Vsphere5 no problem when you use the DRS and HA together. but it takes only

  1 - two nodes must never operate in a single host for HA and DRS
  2. to do this you must create the rules below

  -HA, create a host of DRS group, and then create a group of Virtual Machine DRS, then A VM host affinity rule must be created, with a group of virtual machine DRS and a host of the DRS group.
  -DRS, create anti - affinity machine VM-virtual rules specify which virtual machines should be stored on different physical hosts and turn on strict application of the law of affinity rules virtual machine configuration

  Or you can also disable the DRS for these 2 nodes and enable only HA, but even once you must ensure for HA 2 nodes never operate in an ESXi host

  See books of installation for Failover Clustering and the Microsoft Cluster Service to Vsphere5 and vsphere-esxi-vcenter-server-501-resource-management-guide

• VM will use only 50% of the resources allocated vCPU

  I have a windows 2008 64 bit VM with 4 vCPU who seems to never use up to 50% of the handsets of CPU resources. Each CPU seems to be well balanced, but will never go beyond 50%. I do not see and as for example allocation of resources, limiting the amount of CPU that is given. I use this virtual machine on a dedicated v4.1 ESXi host.  Doesn't seem to be any challenge. Any ideas why it seems to be limited to only 50% of the available CPU? There is no other virtual computer running on this host at this point...

  Doesn't seem to be any challenge. Any ideas why it seems to be limited to only 50% of the available CPU?

  Now, you see one of the MANY reasons for which multi CPU VM are a WASTE!  This is what we are trying to illustrate them, thanks to prove our point!

  It is applications that drive CPU, if the applications are not multi threaded or SMP, you cannot take advantage of the CPU unless APPS are SPECIFICALLY written for her.

  In a virtual machine, it did a great job to demonstrate how inept apps really are...

• host resource allocations

  What would be recommended to set for the host resource assignments?  The default values are usually ok?

  Usually don't want to add reservations of memory or CPU, unless the virtual machine requires it.  ESX does a pretty good job of managing the physical resources, so these manual adjustment goes against the process that ESX uses to manage these resources.  That being said, if you have an application that do not support having less than a certain amount of resources to work, then you can use reservations.  Another romanti, do not use, and memory that you allocate will be the top end of the allowed memory.

  If you need anything whatsoever, use actions to create a relative priority of the VM themselves instead of reservations.  List of resources to isolate applications and give them different priorities.  Actions work a little better because there is no predetermined resource allocation, what a priority so that some virtual machines get more resources than others.

  -KjB

  VMware vExpert