Resource pools/shares

Similar Questions

• 'Custom actions' of the CPU in the Resource Pools: should I also set the VMs child on "custom"?

  Hello world

  Imagine a VMware vSphere 4.1 cluster managed, of course, by vCenter Server, with some 4.1 ESXi hosts.

  This cluster has 3 Pools of resources: development, Production, quality

  Now consider that the Resource Pools have been initially implemented in the following way, about the 'actions' for 'CPU resources':

  -Development: Shared low =

  -Quality: Sharing = Medium

  -Production: Sharing high =

  Several virtual machines were placed in the Resource Pools. Some virtual machines are single vCPU, but others are vSMP ones: some have 2 vCPU and some of them have 4 vCPU.

  Now, I read the following articles of the (large) put at disposal by Duncan Epping, VMware, in his blog "Yellow brick", on "Resource Pools" and actions:

  The Resource Pool priority-Pie Paradox - yellow bricks [written by Craig Risinger]
  http://www.yellow-bricks.com/2010/02/22/the-resource-pool-priority-pie-paradox/

  Actions on Resource Pools

  http://www.yellow-bricks.com/2010/12/14/shares-set-on-resource-pools/

  Actions on a Resource Pool, custom scripted

  http://www.yellow-bricks.com/2010/02/24/custom-shares-on-a-resource-pools-scripted/

  Now, imagine that I have manually changed several Pools of resources from low/normal/high "Custom" and gave them the following values:

  -Development: 3000

  -Quality: 6000

  -Production: 9000

  The virtual machines inside each Resource Pool appear to be all set up to 'Actions' = 'Normal '.

  I want to know is this:

  1 - since I changed Resource Pool shares 'Low' / 'Normal' / 'High' to 'Custom', I should / need to change the 'actions' in each individual VM from "Normal" to "Custom"?

  2 - I'm guessing that the sum of the actions of all virtual machines in a Resource Pool must be equal to the actions that I gave to this Pool of resources. Am I wrong?

  3 - I also guess that the only practical way to make this change to Virtual PCs, if necessary, is to generate scripts, preferably using PowerCLI. Friend, I have right?

  Thanks in advance!

  See you soon,.

  Ricardo

  Whatever resources the resource pool level are applicable to this pool of resources and will get the part accordingly. So that resources will be divided between the virtual machines according to the shares they hold.

  Example:-two pool of resources A and B.

  Total cycles CPU = 10000 Cycles CPU

  A part (custom set) = 6000 CPU Cycle.

  Part B (custom set) = Cycle CPU 4000.

  Now a resource pool has three virtual machines powered with shares.so high normal and low on this desire to cycles CPU 6000 cases divided among them in 4:2:1

  VM1 have = 4 * 6000/7 = 3428 cycles cpu.

  VM2 will get = 2 * 6000/7 = 1714 cycles cpu.

  Vm3 will get = 1 * 6000/7 = 857 cycles cpu.

  so according to your requirement, you can change your actions at the level of the virtual machine.

  PS:shares come into picture when there is a conflict.

  HTH

• Shares of disk setting on the virtual machine in a Resource Pool

  Hello

  * Very * new to PowerShell so forgive me if this is trivial...

  I would like to drive value that is 'weak' actions on a virtual machine that is a member of a specific Resource Pool.

  I.e. all content in a specific VM must have the list of resources: bass - DiskSharesLevel

  Brgds.

  Bjarke

  Hi Bjarke,

  If your resource pool is called 'test', then you can set the level to the lowest of all the VM in this drive actions pool resource with:

  Get-ResourcePool test | Get - VM | Get-VMResourceConfiguration | `

  Game-VMResourceConfiguration DisksharesLevel - low

  Best regards, Robert

• Reservation of CPU Resource Pool

  Hello everyone

  I need feedback on pools of resources, and in particular for the CPU share uses.

  I read the "Mastering Vmware vSphere 5.5" and I understand how Vmware works for the share of the CPU.

  I have the a customer who want to buy me a resource pools for this virtual machine management. He will buy vCPU 26 and 64 GB of RAM.

  I know how to set up the RAM, but I did not how to do for the CPU.

  I started by 26 multiples by the clock of the CPU, but the value is higher or lower than 1 ESXi. So I think I made a mistack.

  Can someone help me to understand how do for the CPU resource pool.

  Thanks in advance for your help.

  Best regards

  Matt

  Hi Matt,

  Personally, I put a limit of 2 GHz by heart. CPU host have 3.0 GHz. On this way a big vm as you can 'kill' the host and other virtual machines on it.

  When you use the same limit, you will need to set the limit at 52000 MHz (26 x 2000 MHz Cores).

  Kind regards

  Patrick

• N + 1 configuration with 4 physical blades that are assigned to a single resource pool

  I want to be able to define an N + 1 configuration where a resource pool gets the power of equivalent treatment of the 3-blade expandable in the fourth blade. In addition, I want to make it worth the custom action that ensures that the resource pool gets all the time shared four physical hosts in contention.

  Here is the command I use to customize this value. All I need to know is how to customize the number of shares to ensure that he is the owner of all the time the equivalents 4 blades in our cluster.

  Together-ResourcePool - ResourcePool (Get-ResourcePool 'STI WinSTIS Lab"- location xen01) MemReservationGB - 767.795356750488 - MemExpandableReservation 255.931785583496 - CpuReservationMhz 167940 - CpuExpandableReservation 55980 - CpuSharesLevel custom - NumCpuShares? -Confirm

  Please look at the picture to see the stats on the host machine. Thanks in advance for the help.

  As far as I know, the number of shares of CPU of a resourcepool is a relative number you should see with regard to the number of shares of the other resourcepools CPU.

  Chris has a very informative post, with a PowerCLI script on the subject, see Understanding the in VMware vSphere Resource Pools

• Automation of Resource Pool

  I'm currently being responsible to try to automate the allocation of resource pool in our clusters.  Currently our operations team has trouble to the size of the resource automatically, pools or systems are migrated and stocks of resource pool are not delivered to the appropriate amount.  Is there a way I can automate amounts related to actions based on memory and CPU for all VM in an existing pool.

  For example.

  Resource pool includes 7 virtual machines for a total memory 100 000 and 10,000 shares of CPU.  System is migrated on and now the list of resources should be 80,000 memory and 6 000 CPU.  Is there a way to get Orchestrator for the calculation for this and change the list of resources accordingly?

  Ben

  Check out Duncan Eppings post here:

  http://www.yellow-bricks.com/2010/02/24/custom-shares-on-a-resource-pools-scripted/

  These scripts were performed in powershell, but the idea was a weekly script that you can run to automatically maintain the list of resources sharing in the balance that you have discussed.  What you have to do is tweak for your needs then either run on a host of powershell of the vCO, or take the logic and translate it into javascript code.

  Hope this is useful!

• How to calculate the cpu in the resource pool

  How to calculate the cpu in the resource pool

  and don't forget that shares in pools of resources are not inherited by the virtual machines in the pools. the action is related to the pool itself.

• Issue of booking Resource Pool

  We used vSphere for a long time and this is the first instance where we watched in the use of resource pools to manage cluster resources.  What we try to do is pool funds from several different material groups buy and then distributed in equal shares of resources between these groups, but allow others to expand beyond what their fair share guaranteed if the resources are not being used by other groups.  And if the other groups are starting to need these resources in return, we want vSphere to restore "ready" transparently resources without causing any VM power issues etc.

  I'm pretty sure resource pools set reservations equal to assignment to a specific group is the way to go here.  If I understand correctly, resource pool bookings do not behave as the reserves of the VM, and even though I had to reserve 100% of cluster across pools resources collectively, a resource pool could grow beyond its reservation as long as there was no pretense.  When the contention starts, additional resources to a pool of resources will be taken away, but only to him guaranteed booking.

  Is my understanding of this is all correct?  Am I sure can cause problems, or a better way to accomplish this task?  Thanks in advance.

  It's the way I used to teach on reservations - think a restaurant which has 100 chairs - like the power of virtual machines on they have a number of chairs that they reserved - if the virtual machine needs more chairs he will get more chairs as long that other virtual machines do not use chairs they reserved - not what happens if all the chairs are reserved - the virtual machine will be not able to come into the restaurant (power on) even if there are empty chairs - if expandable restaurants reservations are activated a call is made to the room dining upstairs (the parent pool) to see if there are chairs available - this works in the same way for memory and cpu but memory has the ability to use the by vm vmkernel swap file and continue my analogy if all chairs are so reserved and a virtual machine appears they could sit on the patio, which can make the conversation (hard affect performance).

  When a virtual machine is turned off (leave the restaurant) it will come out of his reserve make room for several virtual machines.

• DRS necessary for Resource Pools? (vSphere 5)

  Hello

  We make the leap of XenServer to VMWare at the minute and watch vSphere Standard as a starting block.

  I am looking to use Pools of resources in order to manage resources - is this correct for resource pools work I need DRS (which isn't available in the package of the company)?

  If so, should I still DRS to reserves, limits and shares for each VM?

  Thank you

  Tim

  Hi Tim,.

  the use of resource within a Cluster HA pools to Drs without DRS you can create pools of resource for single guests only.

  DRS is not necessary for reservations, the limits of virtual machines.

  For more information on the management of the resource, check out this doc:

  http://pubs.VMware.com/vSphere-50/topic/com.VMware.ICbase/PDF/vSphere-ESXi-vCenter-Server-501-resource-management-guide.PDF

  Kind regards

  Tim

• Cluster with different host - resource pools hardware?

  Hello

  We have currently three generations of servers at base of AMD in our environment - with different CPU clock speeds.

  Guests are split into three groups and VMs are grouped based on clock speed.

  But frankly, it's a mess to administer.

  We envisage the creation of a single cluster and using pools of resources.

  But CPU resource pools take host speed of the CPU in return?

  - Or they just sure that VMs receive their share of CPU temps on loan-time partial?

  Best regards

  Martin

  Pools of resources sharing works only when there is some conflict of resources.

  -VMs in 'high' will appear on hosts with fast processors? - and get the most MHz?

  The actions are only priority... Then no.

  With a reservation... it depends on how much MHz offers...

  - Or they simply receive a high share of CPU time on a random host?

  By shars Yes...

  But remember the first sentence!

  If you have enough of free resources, all virtual machines are also (for actions).

  André

• Script to check the correct resource pools

  Hi guys

  Hoping someone can help with PowerCLI issue?

  I want to set up a script PowerCLI who together share CPU and memory allocated to all VMS in each Resource Pool, add them together and compare them with resource information in the list of resources and those who differ from a CSV output (including how on every property is different).

  The idea is that this script will quickly check through our vast domain for incorrectly configured in the resource pools (ie. those who have not been updated).

  Anyone able to help give advice on how I can get that data into PowerCLI from the pool of resources and the virtual computer?

  Thank you very much

  -

  ---

  a crazy penguin

  http://www.acrazypenguin.com

  I don't know if the values you provide are correct for what is planned.

  Especially the MaxCpuUsage won't say much because this will normally reflect the total amount of CPU resources on the host (provided that the customer has no defined limits).

  The following should give a better picture (I guess)

  $dcName = 
  $report = @()
  $dc = Get-View -ViewType Datacenter -Filter @{"Name"=$dcName}
  Get-View -ViewType ResourcePool -SearchRoot $dc.MoRef | where{$_.Name -ne "Resources"} | %{
       $rp = $_
       $rpMem = 0
       $rpCpu = 0
       Get-View -ViewType VirtualMachine -SearchRoot $rp.MoRef | %{
            $rpMem += $_.Summary.QuickStats.hostMemoryUsage
            $rpCpu += $_.Summary.QuickStats.overallCpuUsage
       }
       $report += New-Object PSObject -Property @{
            Name = $rp.Name
            "VmCpuTotal (MHz)" = $rpCpu
            "VmMemTotal (MB)" = $rpMem
            RpCpu = $rp.Runtime.Cpu.UnreservedForVm
            RpMem = $rp.Runtime.Memory.UnreservedForVm / 1MB
       }
  }
  $report | Export-Csv "C:\ResPool.csv" -NoTypeInformation -UseCulture
  

  Note that this does not overcommitment account. To have the script must use the unreservedForPool rather than the UnreservedForVm property property.

• Issue of Resource Pools

  I'm relatively new to the VMware Infrastructure. I read a lot of documentation available, but I'm having a hard time getting my head around Resource Pools. I was wondering if someone could point me to documentation that includes examples of how and why the Resource Pools are used in a real production environment. In the meantime, if anyone could answer the following questions, I would appreciate it:

  It seems to me that the RPs have been created to distribute resources according to how many resources needs of an organizational unit. For example if a unit is in need of 5 machines running at 2 mhz each with 2 GB of ram, then a suitable unexapandable PR for this unit would include 10 mhz and 10 gigabytes of ram and if any machine would be created which depleted resources, the machine would not be able to start. Is this correct? If so, then how the RP can manage how much mhz CPU using each machine? If all 5 machines were launched at the same time, would not be the limit of 10 mhz be quickly exhausted? The machine would be stopped / stop? Or would the machine just run with > less < mhz?

  RPs affect DRS or HA? How can he? Because the DRS moves a machine so she uses a fixed amount of resources on a machine, ESX, how RPs come into play if they are universal to the cluster?

  Thank you very much

  psynophile,

  Relevant issues. RPs are used "Undernet world", Yes, but I've not seen too real implementations using it. But everything I've seen, they work very well for purposes of limitation and booking. Answer your questions:

  "any machine would be created which depleted resources, the machine would not be able to start": it depends. The limitation will be strong for the RAM (the sixth VM fuel not on), but for CPU the ESX will try to share the 10 GHz (I guess than the typo in the MHz) with all the virtual machines on the RP - always count you can provide each machine with a reserve of CPU, so if the reservation is greater than the limit , then you may not be able to power on the nth VM.

  If so, then how the RP can manage how much mhz CPU using each machine? If all 5 machines were launched at the same time, would not be the limit of 10 mhz be quickly exhausted? : it depends on the use of each virtual computer processor. The performance will be degraded IF the limit of 10 GHz is not sufficient to them.if you 5 database within this RP servers, they will probably present a performance degradation. But will never halt/stop.

  RPs affect DRS or HA? : as the RPs are on a group level, they do not. DRS will change virtual machines one ESX to another depending on the host CPU/RAM usage. HA won't be affected, only that your reservations can reduce the amount of servers for failover, you have set up for it.

  Several docs on this subject: http://www.vmware.com/pdf/vi3_35/esx_3/r35u2/vi3_35_25_u2_resource_mgmt.pdf

  Hope this helps,

  Marcelo Soares

  VMWare Certified Professional 310

  Technical Support Engineer

  Chief Executive Officer of the Linux server

• use of resource pools

  Hello

  I understand very well how the notion of 'actions '?

  What could someone explain this term compared to other resource pools in the same cluster and with a stand-alone resource pool?

  Or is it all very clear explaining that doc?

  THX

  Actions determine how a resource gets broken when there is a conflict for this resource - lets start at the level of the base of a virtual computer, since the actions for a VM and the Resource Pool work the same way - if you have three Pools of VM/resources each with 1000 equal parts - that the total mass of stocks will be 3000 and each VM/Resource Pool will get 1000-3000 or 1/3 of the total resources available, when there is a conflict - lets say the VM/resource pool has 3000 parts - so now the total mass is 5 000 shares for these VM/resource Betclic so the list of VM resources with 3000 shares 3/5 of the resources and the other 2 VM/resource pools will have 1/5 of the resource when there is a conflict-No if you had a single VM/resources shares pool would not come into play from the pool full-fledged consists this single element.

  numbers used 1000 and 3000 were chosen at random to demonstrate the sharing feature

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

• Resource pools seem unusually slow?

  So I do a VDI poor-team where I have half a dozen hosts XP running on the ESXi server and each client has a direct mapping of RDP to a XP host.  Works well.  Whish I had a broker for connections for connections to Robin, but it works well!

  I created a list of resources for workstations limit to 1000 MHz and 1024 MB of RAM and dropped each XP guest in this pool.  All of a sudden the XP hosts are dirty slow!  They are not machines busy and each uses on average around 250 MHz and 512 MB of RAM.  However, while the machines are in the resource pool, they are just slow pig!  By clicking the menu start takes 10 seconds to come.  If I take the machines our list resources, does not change the use of more than 10%, but they are fast as lightning?

  Any ideas?

  -brian

  I think the resources in a resource pool to limit the use of ALL virtual machines in this pool.  So when you limit your pool to 1000 MHz and 1024 MB of RAM, you say that EACH virtual machine gets a lot, you are saying that all 6 VMs must share 1000 MHz and 1024 MB of RAM.  On average, this is equivalent to 167 MHz by VM and 170 MB of RAM per virtual computer.  I have not tried running XP on nothing less than a P3 processor within a certain time, but you can see how that can be awfully limiting resources.  Also, keep in mind that ESXi will do when you limit the amount of RAM in a resource pool is to force swapping to disk.  Therefore, it is not that the o/s in each virtual machine will limit the use of memory for applications to 170 MB, is that the virtual machine can handle only 170 MB of RAM and the rest of the memory affected virtual machines is be swapped to disk.  Who is going to be terribly slow...

• Resource pools &amp; reservations?

  Hello

  My question pools of resources. I'll cut right to hunt.

  If a resource pool is created and a reserve of memory is set to say that this means-4069 MB each VM on the host is allocated physical memory 4 GB when it starts?

  When its given a reserve of say 4 GB it never will give the host it's memory if it is not needed?

  What happens if a guest is only given 2 GB of memory, but the reserve is set to 4 GB. It will only take 2GB or take all 4 GB host?

  Here is my scenario:

  An ESX host is given to 8 GB memory.

  4 VMs were created and given 2 GB of memory each.

  A Resource Pool is created and a reserve memory is set to 4 GB of memory.

  This VM average only 2 can be powered on at the same time? Or all 4 machines can be powered on?

  I wonder because someone went and created a bunch of pools of resources like this to my work. I'm new to the technology, but it seems as if they were incorrect installation. My guess is that they were created after the virtual machine has been powered...

  If a resource pool is created and a reserve of memory is set to say that this means-4069 MB each VM on the host is allocated physical memory 4 GB when it starts?

  N ° this means that the POOL reserves 4 GB to apply to these virtual machines.  ALL VM sharing the resource in a POOL.  Up to 4 GB is shared between the virtual machine in this pool.

  When its given a reserve of say 4 GB it never will give the host it's memory if it is not needed?

  NOPE.  Not once it is used, it is reserved.  If you want to share, just use stock instead of reservations for the swimming POOL.  Increase the priority and this POOL will have a higher priority.

  What happens if a guest is only given 2 GB of memory, but the reserve is set to 4 GB. It will only take 2GB or take all 4 GB host?

  YES.  Once reservations are applied, they don't get until they are not necessary.  Once a virtual computer in that pool gets hold of the memory, he won't give it back unless it is turned off.  But since you apply the reserve to a POOL it is immediate, so if your cluster has 32GB of memory, this POOL booked 4GB, leaving 28 GB to share the rest of the cluster, but only this POOL keeps at least 4 GB of memory to ensure that enough memory is given to its members.  This will be guaranteed to members of this POOL of memory.

  This VM average only 2 can be powered on at the same time? Or all 4 machines can be powered on?

  Well what is happening, is that the booking of the pool takes these and its guarnateed to get memory.  Other virtual machines are going to starve (if not left) until this pool is granted to ALL memory.  Once the pool is enough resource, reset of struggle of pools/VM without reservation on the remaining memory.

  Until you are absolutely certain that your VM do NOT get what they need, I would turn off reservations.  They should be used with caution if you don't know what you're doing, you can really tilt performance and cause problems.  So change the settings of the shared pool, back not book memory and monitor the performance of the virtual machine.  If there seems to be some conflict later, you can always reactivate.