DRS and Resource Allocation

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• DRS cluster resource allocation and CPU

  Hi all

  I have a question about the allocation of CPU resources to the guests in an environment of DRS. I was under the impression that all physical CPU resources are completely abstract the guest virtual computer. However, I see the following behaviors...

  -J' have a cluster DRS with two ESX hosts ~ 59GHz of the total available CPU resources. Physical ESX host computers have several multicore 2.9 GHz (I don't have practical details right now but that is irrelevant)

  -J' have a linux comments running RHEL 3.0 which seems high on slightly less than 2.9 GHz.

  Now there are a lot of resources of cpu without reserve available to the cluster, but this particular virtual machine can't enter any allocation of processor more than a little less than 2.9 GHz.

  So my question is this: are VMs limited CPU resources to the maximum of available resources to a single physical processor on the host, or must it be able to recover more of the DRS cluster resources? (Assuming a single vCPU guest), I can't seem to find any material that provides black and white if that's the case?

  If an SSN processing power is limited to the total amount of CPU resources of a single physical processor in the host, which is recommended for a machine that requires more CPU resources? Adding an another vCPU (and running vSMP)? I was under the impression that vSMP should be avoided unless a particular SMV workload could truly take advantage of SMP?

  See you soon,.

  Ben

  Well, Yes, each vCPU is limited to the resources of a single processor - there is no aggregate CPU by VM resources.  In the end, son of vCPU of a VM are given for a single CPU.  The only way to improve the performance of the virtual machine, it is just as you wrote - add vCPUs if the guest operating system and applications can use.  The cost is that all threads of vCPU for a virtual computer must be taken together, so if the virtual machine is unable to make their use, the waiting time for this and other virtual machines could increase, degrade their performance of the processor.

  A little more info...  An ESX host has one or more contexts of material performance (SESC).  Each core is a HEC.  Each instance of a CPU hyperthreading is also a HEC.  Thus, for a host with two processors Quad-heart and without hyperthreading, the total number of sesc on the host is eight.  Another example; for a host with two single core processors and each processor supports hyperthreading, the total number of sesc is four.

  Each vCPU uses a HEC.  A virtual machine with two vCPUs will use two sesc.  According to VMware, ESX will try to prioritize different sockets for use of the VM before two hearts on the same socket and before hyperthreading sesc on the same socket.

• DRS rules and Resource Pools

  Is it possible to assign the DRS rules to Resource Pools instead of creating groups of DRS and adding to the DRS group VMs and then creating a rule
  I ask this question because of a problem that I currently have
  I am far from being an expert as you'll see soon and back to the use of support groups
  If it I'll give you my scenario
  I have 4 ESX host in my test group
  2 hosts are connected to zFCP
  And all 4 are connected to independent contractors
  I have a resorce pool call FC and another called ISCSI
  We constantly evolve around VM between these 2 pools
  The highest availability VM remains on the rest on ISCSI FC
  I would like to create a rule that States if a virtual machine is in the RP FC then he must reside on host A and B, and if it resides on ISCSI it can reside on any host
  I realize that there is still other issues involved here as data themselves warehouses
  but it is another matter that he owns the rights
  We migrate VMs and the data store when we leave the virtual machine to another RP 1
  If the rule would be always true
  I would like to hear from you
  on this topic
  for now I just use rules and groups of DRS
  Thank you

  I don't think this is possible from the point of view of rule affinity DRS, as he has no relationship with resources or VM disk pools. This seems to be a single-use resource pools.

  You could probably do with a set of scripts PowerCLI who would check two resource pools and ensure that the virtual machines to the breast have their records on the correct data store and if not do a svMotion.

• Change the PowerCLI Script to use the DRS and DRS storage

  Hello

  I have a PowerCLI script that specifies a host and a data store to create a new virtual machine, which has served us well. Now we have activated the DRS and DRS storage and I wonder what to change in order to take advantage of these features. Are there commands to specify a cluster and the cluster data store and let the DRS to decide the initial investment for a new virtual machine? At the moment we put all hosts and the warehouses of data as variables and use them in the line below.

  Thank you.

  $newVM = New-VM-name $NewVMname - VM $TemplateName Datastore - $datastore - VMHost $vHost - confirm: $false - location $myName

  You set a Datastorecluster?

  If Yes, then you can replace the value of parameter data with the datastorecluster object store.

  Replacing a VMHost with a cluster is not taken in charge I'm afraid.

  But you can use something like this

  New-VM-name TestVM Datastore - DSC - ResourcePool (Get-Cluster-name mycluster |) Get - Resourcepool - name of resources)

  This will automatically select the VMHost.

  The virtual machine appears in the root of the cluster.

  DSC is the name of a datastorecluster in the cluster mycluster

• 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

• 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.

• 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

• 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

• Actions and resource pools

  Hello

  We meet the following "problem":

  We have created 2 resource pools: one with the actions 'CPU and memory' defined as the default value counter 'low', the other with the default value is 'normal '.

  So far, no problem.

  The question is this:

  When we look at the actions for each virtual machine, on the tab of the resource allocation to the title of the list of resources, we see a lot of action, defined as 'custom '. But we never put these customs.

  So my question:

  How can we explain all our virtual machines should only be managed by our pools of two resources (low and normal), and we see "customs" for many of them?

  Thank you.

  I confirm that I saw the same thing when I upgraded from 3.0.2 to 3.5.  The upgrade keeps the value of the action at the time and applied to the virtual machine, rather than keeping the parent value.  If you do some research, you will see the posts for this purpose.  A bit boring.  In fact, I used a powershell script to run through all the vm and put them back to normal.

  -KjB

  VMware vExpert

• DRS and live Migration with the guest operating system issues

  Hello

  Someone at - he never encountered problems with the DRS or dynamic migration where the OS in question invited crashes under the peaks of the processor. This seems to be with servers but not specific to 64-bit or 32-bit servers it sure substance of concern with machinery that uses a lot of CPU or memory crash when migrating on the fly. We have 7 of Quad-Core AMD BL465 with esx3.5 update1 DRS and HA active and animators have many resources to offer.

  Thank you very much

  Rich

  You experience the problem that is described in this KB?

  http://KB.VMware.com/kb/1003638

  If you believe this or any other answer was helpful please consider marking as 'correct' or 'useful '.

• Books and resources on DPS 2015

  Nice day

  As an AIC for previous Adobe DPS I get my hand on the books and resources that can function as a class of materials for 2015 of DPS. Any help Bob Levine, or Bob Bringhurst is especially appreciated.

  There is a forum dedicated to DPS2015 and I moved your post here.

  Lots of info here.

• Resource and resource type definituion table names

  Hello
  Please tell me the tables that stores the definitions of types of resources COMPUTER and their settings and resources.
  
  
  Thank you
  Kalpana.

  Table SVR IT stores resources
  Vesicular disease of the PIG HE wounds of resources type definition.

  Kind regards
  GP

• VMware DRS and VMware HA

  I'm allowed to use VMware DRS and HA but I'm not familiar with what exactly they can do for me and how they might relate to Vmotion.  I turned on my 2 hosts of vmotion, but I guess my virtual machines do not automatically move from one host to another one grave host fails, until it is completely configured.   Could someone give me a quick description and point me in the right direction on how I can use?

  I have licenses for the company for the full suite of vsphere.

  DRS - distributed Service Resouces

  This process will recommend to move a virtual machine for performance reasons.  This can be set to automatically move virtual machine.  We have defined it this way and it works very well.  VM move on their own see and at night.

  HA - high availability

  If a host goes down, this service starts the VM who have been on this subject, to another host automatically.  The virtual machine will be turned off unexpectedly well.

  FT - fault tolerance

  This feature is introduced in ESX4 and keep a copy running on another host.  If the primary host fails, the other takes over with no downtime.  It is currently limited to VM with one vCPU however.

  DRS and HA are configured in the properties of a Cluster.  If you do not have a cluster, right-click on a datacenter in VC and create a cluster.  Move the hosts in the cluster.  Drag and drop works fine.  Right-click on the cluster, and then select both.  Once activated, you can configure the DRS and HA.

  Charles nights, VCP

  If you have found this or other useful information, please consider awarding points to 'Correct' or 'useful '.

• The problem of the connect role and resources

  Hello
  
  As we know, all packing a new user, we can assign connect and resources so that the user can access the system tables.
  
  The problem I got is rather than affect the connect role and resources, I assigned each individually privilege to this role. But, surprisingly, my user has no privileged o accessing space of system tables.
  
  I was working in oracle 9i database. Can someone help me with this and tell me what is the reason behind this?
  
  Thanks in advance.

  Hi role of internal resource composed unlimited tablespace and quota on the tablespace system. but this is not shown in role_sys_privs. We must at the same time the role of resource to think twice or three times. also, as said we shouldn't use system tablespace.

• Jdev 11 g: problem with encoding of characters and resource bundle files

  Hello
  
  I use Jdev 11.1.1.0.0, IE7 and resource group files (* .properties) to translate the application into other languages.
  
  The CommonBundle.properties file contains the following:
  BUTTON_CLOSE_LABEL = schließen
  BUTTON_COMMIT_SHORTDESC = Speichern der Lavaggio
  ======================================
  
  The ss and A are the German special characters.
  
  When I run the application of Jdeveloper (with includes WLS 10.3) then the files are copied in... \ViewController\classes\view.
  With this action, the content of the propertie files go to:
  BUTTON_CLOSE_LABEL = Schlie\ufffden
  BUTTON_COMMIT_SHORTDESC = Speichern der \ufffdnderungen
  ========================================
  
  On another PC with the same environment (XP, the language in the BONE, Jdev 11.1.1.0.0, settings...) the same action modifies the content of the properties file
  BUTTON_CLOSE_LABEL = Schlie\u00dfen
  BUTTON_COMMIT_SHORTDESC = Speichern der \u00c4nderungen
  ========================================
  
  That said, when I run the application on my PC the ss of characters and are displayed wrong.
  On another PC, the same application displays the correct characters.
  On my PC the two DIFFERENT German characters are sequence ESC replaces it with the SAME (and evil).
  
  Question: Which parameters are responsible for the translation of some sequences ESC-German special characters when I run or deploy an application?
  
  BTW: The problem is the same if I deploy the application from my PC.
  
  concerning
  Peter

  OK, here's my findings.

  1. it depends on the Encoding setting in tools > Preferences > environment > Encoding!
  2. a file created with the same set of characters translate correctly.
  3. a file created with a different set of characters will not translate correctly.
  4. to use Unicode all the UTF-8 encoding and create all files with this endocing. Translation will not work correctly.

  -olaf