Average read get-stat - virtualdisk.read.average stat?

Hi all

I want to use the metric virtualdisk.read.average to calculate the average read speeds per virtual disk to a virtual computer in the last 24 hours (using the 5 min interval)

[1]

I want to calculate the average in * every * instance and then add these individual averages until you get the desired amount.

For example (using real-time output just for example only, I want 24 hours actually):

MetricId unit Insta timestamp value
NCE
--------                ---------                          ----- ----     -----
VirtualDisk.Read.Ave... 13/05/2011 19:39 6 Kbps scsi0:0
VirtualDisk.Read.Ave... 13/05/2011 19:38:40 Kbps 11 scsi0:0
VirtualDisk.Read.Ave... 13/05/2011 19:38:20 KBps 39 scsi0:0
VirtualDisk.Read.Ave... 13/05/2011 19:38 431 Kbps scsi0:0
VirtualDisk.Read.Ave... 13/05/2011 19:39 10 Kbps scsi0:1
VirtualDisk.Read.Ave... 13/05/2011 19:38:40 Kbps 0 scsi0:1
VirtualDisk.Read.Ave... 13/05/2011 19:38:20 5 kbps scsi0:1
VirtualDisk.Read.Ave... 13/05/2011 19:38 0 Kbps scsi0:1

Average (6 + 11 + 39 + 431) = 121.75

average (10 + 0 + 5 + 0) = 3.75

Total liked: 121.75 + 3.75 = 125,5

What is the best way to achieve this? (Unfortunately there is no global instance as with the network and cpu.usagemhz parameters)

[2]

For the calculation of the IOPS / s, if you use the metric datastore.*, OR as the virtualdisk.*, is the following statement, 100% good:

(a) virtualDisk.number [Read |] Write] Averaged.Average will calculate the OPS are / s generated by the virtual machine

(b) disk.number [Read |] Write] .summation will calculate the OPS are / s that hit this particular data store (useful to see how busy is a data store - but will not provide any info on a single virtual machine (unless by chance, there is only a virtual computer on this data store special))

[3]

How to use virtualDisk.number [Read |] Write] calculate the IOPS / s for a given virtual machine?  Depending on the issue [1], to each VMDK, PAHO are / s on average individually and then add the averages for overall IOPS generated by this virtual machine in the last 24 hours?

Concerning

marc0

Kind regards

marc0

[1] use the Group-Object and Measure-Object cmdlets for this.

For example

$vm = Get-VM MyVM $report = @()
$stats = Get-Stat -Entity $vm -Stat virtualdisk.read.average -Start (Get-Date).AddHours(-12)
$stats | Group-Object -Property Instance | %{
    $row = "" | Select Instance,Average
    $row.Instance = $_.Group[0].Instance
    $row.Average = ($stats | Measure-Object -Property Value -Average).Average
    $report += $row}
$report $total = ($report | Measure-Object -Property Average -Sum).Sum
Write-Host $vm.Name $total

This will calculate the averages per virtual disk and add the averages together

[2] see my post get PAHO are / s maximum .

(a) Yes, provided that you add the OPS are / s for each virtual disk total

(b) No, if you run the Get-Stat for an entity that is a virtual machine, you will get the statistics for this specific VM disk.

The metric is available for HostSystem and VirtualMachine. See the column of the entity in the drive settings page.

[3] Yes

Tags: VMware

Similar Questions

  • Average usage of the CPU with get-stat

    With get-stat, I can get average use of the processor in MHz using the metric usagemhz.

    However, by default the maximum and minimum values in MHz is not in data points from 2 months ago.  That's fine if I want to just average, but I also need average peak values.  The average maximum CPU usage is possible with powerCLI?

    The thing is that when you have found these averages and you do that a day or a week of a data value is not enough to really give you a true picture - you need 2 - 3 months.  Can Haw I achieve this with PowerCLI?

    1. you can easily adapt the cmdlet Get - VM to produce the result for 1 or a limited set of the virtual machine

    For example:

    Get-VM-name MyVM | Select...

    Returns the result for 1 computer virtual called MyVM

    If you do

    Get-VM-name my * | Select...

    It returns results for all virtual machines whose name begins with "My".

    2. that's because Select-Object generates a hash table, and by default PowerShell displays like that hash tables.

    To get only the value real exchange the last select like this

    ...

    } | Select AvgCPUMhz - ExpandProperty

    ...

  • Get-Stat & weighted average

    When I run

    Get-ResourcePool -name "RSNAME" | Get-Stat -Stat mem.consumed.average
    

    Powercli is a weighted average (weighted average arithmetic - Wikipedia, the free encyclopedia)? Or I have to take into account that a VM can have data for each interval points, IE the VM did not exist at that time?

    It is a weighted average return.

  • (Mem.usage.Average & Mem.Active.Average meter with get-stats

    I try to put together a weekly statistics using get-Stats... his works all well but if I use Mem.usage.Average, I have the memory percentage. using mem.active.average would give me the use of memory in KB, I understand.

    However, I get an entry using mem.active.average null.

    On the study, I noticed through the chart options to real a meter (attached document) only the section of memory in time performance?

    The mem.active counter can be added to the other section? or y at - it a config I need to do?

    See you soon

    The metrics are collected for different intervals depend on what you are configuring in

    .

    In this form, you will see the 4 historical intervals and for each, there is a "level of statistics" (being the metric 4, 1 being the least metric).

    You can check what you have there?

    If the level is 1 for all the intervals that could be the reason why you can not get the mem.active meter.

    Note the data in real time, see you in the VI Client comes from the real time hard coded interval (20 seconds) which is collected on the ESX servers themselves and is kept only for a limited period of time.

  • New-VIProperty and Get-Stat with Clusters

    I have a function that I used to collect the Min, Max, Avg for CPU and memory.  The service collects data from last month and returns a single value for each item.  After reading the New VIProperty, I thought I would try to adapt the function in the properties of the Cluster. I got the property works except that it returns an array of values instead of a single value.  I would like help to refine the 1st property and then I can create others.  I'll fix the work function and non-functional property.


    Work function


    Function Min_Max_Avg ($E, $C, $S) {
    Get-Stat -Entity $E -Stat $C -Start $S |
    Group-object -Property {$_. @entity.name} | %{
    $stats = $_. Group | Measure-object -property Value -way -up -Minimum
    }
    $Avg = [math]::round(($stats. (On average), 0)
    $Min = [math]::round(($stats. (Minimum), 0)
    $Max = [math]::round(($stats. (Maximum) 0)

    Return $Avg,$Min,$Max }





    Work not property


    # MemoryMinUsageMonth - MB
    New-VIProperty -Name MemoryMinUsageMonth -ObjectType Cluster - value}
    param ($cluster)
    $start = (Get-Date). AddMonths (-1)
    Get-Stat -Entity $cluster -Stat mem.usage.average -Start $start
    Group-object -Property {$cluster.} @entity.name} | %{
    $stats = $cluster. Group | Measure-object -property Value -Minimum
    }
    $Min = [math]::round(($stats. (Minimum), 0)
    $Min
    }



    As far as I know, the New VIProperty you set is called individually for each cluster.

    There is no need to use the group object.

    Can maybe try you it like that

    #MemoryMinUsageMonth - MB
    New-VIProperty-name MemoryMinUsageMonth - ObjectType Cluster - value {}
    Param ($cluster)
    Get-Stat - entity $cluster - Stat mem.usage.average - Start (Get-Date). AddMonths(-1) |
    Measure-object-property - Minimum value.

    Select - ExpandProperty Minimum
    }

  • How can I get date uniform and exit time to get-stat on servers located in areas with different regional settings?

    Hello together,

    I use a HSP on different vCenters script all over the world to sample performance data. Unfortunetaly vCenter servers concerninbg time Windows locale and date are different. For this reason that I ve had different and output date at the time of the csv. Here is an example to read a virtual computer processor performance.

    Get-Stat - feature $vm.name - Stat "cpu.usage.average" - IntervalMins 5 - (Get-Date).adddays(-1)-.addminutes(-5)-MaxSamples Start to finish (Get-Date) 288. Select-Object timestamp, value, unit | Export-Csv

    vCenter Server located in the United States with the American Time (12-hour AM/PM) and the settings of Date (day/month/year):

    'Timestamp', 'Value', 'unit '.

    "2010-06-27 12:00 PM","2.75","%.

    "

    "

    vCenter Server located in Europe with countries European regionalen (24 hours) and Date settings (day.month.year):

    Timestamp, value, unit

    "21.06.2010 20:00:00", "3.06", %

    "

    "

    For the import of these data to our central database, the formats must be uniform.

    Someone at - it an idea to get the uniform format?

    Thanks in advance

    Concerning

    Oliver

    Why don't you use the solution in Use-Culture - Culture culture - Script {scriptblock} ?

    You do all the writing to your database in 1 selected (for example en-US culture).

    This way all your date and and digital formats have the same layout.

    ____________

    Blog: LucD notes

    Twitter: lucd22

  • Get an error at the end of the output of get-stat

    When I run the following I recover the data, but at the end of the exit, there is a mistake:

    Get-Stat - entity "ESXiHOST" - Stat "disk.totalReadLatency.average".

    Instance of MetricId Timestamp value unit

    --------                         ---------                                        ----- ----     --------

    ...

    Disk.totalreadlatenc... 09/03/2016-16:09:40 5 milli... naa.5...

    Disk.totalreadlatenc... 09/03/2016-16:09:20 0 milli... naa.5...

    Disk.totalreadlatenc... 09-16:09 / 03/2016 4 milli... naa.5...

    Get-Stat: 09/03/2016-17:23:20 Stat get a specified parameter was not correct.

    entity

    On line: 1 char: 1

    + Get-Stat - entity "ESXiHOST" - Stat "disk.totalReadLatency.average".

    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo: NotSpecified: (:)) [Get-Stat], InvalidArgument)

    + FullyQualifiedErrorId: Client20_RuntimeDataServiceImpl_GetAvailableIntervals_ErrorRetreivingPerfProviderSummary, VMware.VimAutomati

    This could be the cause of this error? Can I just ignore it?

    It is somewhat related to the issue you reported in metric does not exist, but the documentation says it should

    This output, it seems that you are connected to a node ESXi, not a vCenter or both.

    View the contents of $global: defaultviservers to check.

    On a node ESXi, you get only 20 seconds intervals (for the +/-breaking).

    I suspect that this node ESXi was started, where the limited number of parameters returned.

    If this is not the case, then there is a problem with the PerformanceManager on this node ESXi.

  • script Get-stat network

    I'm looking to use get-stat to get some associated information networks.  Here's what I do:

    Select a group of virtual machines

    for each virtual machine, select only the 1 (vnic1) virtual network adapter not vnic 2. (some virtual machines have vNIC 2 or more)

    find the maximum flow of avg in Mbps for the virtual NIC only.  Make it as specific as I can according to statistics level 1.   PIC of the last 24 hours is OK. (I want to predict the peaks)

    Create a table as below, I can export to CSV.

    Ideas?

    Thank you!

    VirtualMachineName NetworkAdapater1PeakThroughputMbps
    VM1136
    VM2234
    VM316

    You could do something like that.

    In your case, you will get all the virtual machines in the cluster.

    $vmName = "ClusterVM."

    $vnicName = 'NIC, 1'

    $vms = get-VM-name $vmName

    $vnic = get-NetworkAdapter - VM $vm - name $vnicName

    $stat = 'net.transmitted.average ','net.received.average '.

    $report is entity-Stat-get $vms - Stat $stat - Realtime - MaxSamples 6 - Instance $vnic. ExtensionData.Key |

    Group-object - property entity, Timestamp |

    Select @{N = "Timestamp"; E={$_. Group [0]. Timestamp}},

    @{N = 'Entity'; E={$_. Group [0]. Entity}},

    @{N = "received"; E={$_. Group | where {$_.} MetricId-match "received"} | {{Select - ExpandProperty value}}.

    @{N = ' transmitted'; E={$_. Group | where {$_.} MetricId-match "transmitted"} | {{Select - ExpandProperty value}}.

    @{N = 'Throughput (Kbps)'; E={$_. Group | Measure-object-property value - sum | Select sum - ExpandProperty}}

    # Total

    $totals = $report | Measure-object-property received, transmitted, 'Throughput (Kbps)' - sum

    $report += new-Object PSObject - property @ {}

    Entity = "totals".

    Receipt = $totals | where {$_.} Property - eq "Received"} | Select sum - ExpandProperty

    Sent = $totals | where {$_.} Property - eq "Transmitted"} | Select sum - ExpandProperty

    'Throughput (Kbps)' = $totals | where {$_.} Property - eq 'Throughput (Kbps)'} | Select sum - ExpandProperty

    }

    $report | Format-Table - AutoSize

  • Capture process hung to get stat

    We have a (500 + vms) environment where the often time it's hanging processes. We observed the indication is flawed CPU utilization over a period of time.

    Say if there is a virtual machine with regular use of the UC 40% more than a day, it is assumed that there are bad processes runs, because an idle process should be less consuming.

    That being said. Is it possible to interrogate vms and return the VMS with stale CPU usage? I think I use get-stat and look for the value non-zero but doesn't seem to work. Any thoughts?

    Try like this, she adds a condition to see if the average CPU usage is greater than 20%

    Group-object VM | %{

    $values = $_. Group | Tri-objet-time property | %{$_. CPU}

    $avg = $_Group | Measure-object-property CPU-medium | Select average - ExpandProperty

    $stdvar = get-WelfordStdVar-samples $values

    If ($avg - gt 20 - and $stdvar - the $threshold) {}

    $_ | Select Name,@{N='StdVar'; {E = {[Math]: Round($stdvar,2)}}, @{N = 'CPU'; {E = {[string]: Join('/',$values)}}

    }

    }

  • The "cost" of get-stat

    A customer using a (free) ESXi host reports serious performance problems.

    My goal is to see if performance issues are due to memory, CPU, disk, or any other component.

    I've created a PowerCLI script to query the ESXi host to collect conters performance.

    Before starting can use, I assess whether the use of get-stat can aggravate the problerms with the performance of the ESXi host?

    My script should begin every 60 senconds, use the "connect-viserver" cmdlet and then cycle delivering approximately 20 times the cmdlet "get-stat' to get the values such as"cpu.usage.average","mem.usage.average"and so on.

    Can it worsen the performance of the target ESXi host issue?

    Should I before statring to use it?

    Will there be a better strategy to collect performance counters?

    Concerning

    Marius

    Performance in real time on an ESXi node are maintained during +/-1 hour, so I would not ask as often as every 60 seconds.

    The cmdlet Get-Stat imposes some overhead on the ESXi node, then Yes, that this can have an effect on the interpretation of the node ESXi.

    A few other tips to lower to load:

    • use only the counters that you absolutely
    • try to locate the source of the problem with a minimal set of counters, then go down by adding several counters
  • Using the cmdlet Get-stats for the problems of performance of ESXi

    I need to detect the bottlenecks (if any) causing poor performance with a (free) 5.5 ESXi host.

    I see that if I use the cmdlet Get - stat PowerCLI I get dozens of meters, such as "mem.usage.average" or "'rescpu.maxlimited1.latest ', just to give two samples. "

    Can I identify a subset of the counters I should follow to identify possible bottlenecks in the fastest way possible?

    Concerning

    Marius

    Everything depends of course.

    There are several positions which list a number of key counters to watch.

    The Hosts of ESXi monitoring - a deeper on the what and the why look , you will find a good starting set.

  • Get-Stat for use of the power of the ESXi Server

    Hi all

    Need your help to get a script to capture power consumption/use of an esxi host. I checked the command get-stat, I don't see any special argument as energy consumption in check for the host entity. The time interval can be anything, I'd like to see the same values that manifest slot for power under the tables of performance of an esxi host.

    Any help would be appreciated.

    Thanks in advance

    Try like this

    10 P
    002
    003
    004
    005

    $entity = get-VMHost-name MyEsx
    $stat = "power.power.average".

    Get-stats - $entity - $stat - Realtime - MaxSamples 1 Stat entity

  • Get-Stat - disk response

    Hello

    I went through the various threads for a debate on the output of the Get-Stat '-drive ' element as he tries to understand the OPS are / s of a VM. When you run the command, I went back to "disk.usage.average" where the "Description" indicates that this is below the average disk i/o rate, however the area of the 'unit' claims that the measure is in Kbps.

    I expected the field unit as IOPS / s which in itself is a unit of measurement? Or that I get it wrong?

    Command: Get-Stat - entity SERVERx - Realtime-disc - MaxSamples 1 | Export-Csv ServerX.csv

    Output:

    Output.png

    Thanks to all in advance.

    Danny

    My mistake, the switch Append were introduced in PowerShell v3, v2 not

  • no response from get-stat

    Hello list,

    I have a strange problem with a script for performance:

    I want to get the mem.usage.average / cpu.usage.average counters of all my servers esxi (4.1.1)

    to connect-ViServer 'vcenter.server.local '.

    $esxHost = get-vmhost 'server.esx.local '.

    Get-stat - $esxHost - stat mem.usage.average entity

    ...

    On seven servers, it works very well. On a server, I have no answer. No data, without exception no failure. just nothing.

    Can someone help me with this?

    Kind regards

    Andreas

    OK, this seems to indicate that performance data are for one reason or the other not to be transferred between the host and vCenter.

    If possible, you can remove/add for the specific host.

    You can do this from the vSphere client or use the PowerCLI Remove-VMHost and Add-VMHost cmdlets.

    Real-time statistical data are cached on the server ESX (i) for about 1 hour, after the aggregation of vCenter should launch.

    Then you should start to see performance, in the vSphere client or Get-Stat data, after about 1 hour.

    BTW, guests running on this host will normally not be affected by the Remove/Add.

  • Get-Stat report fails

    I get errors with the following script and would appreciate any help.

    Code

    $ESXHost = "TestESX".
    $report = @)
    $out = "" | Select name, CPU, MEM, VMCount, model, CPUAvg, CPUMax, MEMAvg, MEMMax
    Get-VMHost-name $ESXHost | % {

    $out. Name = $ESXHost
    $out. UC = (Get-view $_). Hardware.CpuInfo.NumCpuCores + "(" + [math]: Tower ((Get-vue $_).)) " Hardware.CpuInfo.Hz / 1000000000, 1) + ") Ghz»
    $out. MEM = [math]: Tower ((Get-vue $_).) Hardware.MemorySize / 1 GB, 0) + 'Go '.
    $out. VMCount = (Get-view $_). Vm.Count
    $out. Model = (Get-view $_). Hardware.SystemInfo.Model
    $out. CPUAvg = [Math]: round ((($_ |)) Get-Stat - Stat cpu.usagemhz.average - Start (Get-Date). AddDays(-1) | Measure - Object - average value). (Average), 2)
    $out. CPUMax = [Math]: round ((($_ |)) Get-Stat - Stat cpu.usagemhz.Average - Start (Get-Date). AddDays(-1) | Measure - Object - the maximum value). (Maximum), 2)
    $out. MEMAvg = [Math]: round ((($_ |)) Get-Stat - Stat mem.usage.average - Start (Get-Date). AddDays(-1) | Measure - Object - average value). (Average), 2)
    $out. MEMMax = [Math]: round ((($_ |)) Get-Stat - Stat mem.usage.Average - Start (Get-Date). AddDays(-1) | Measure - Object - the maximum value). (Maximum), 2)
    $report += $out
    }
    $report

    Errors:

    Cannot convert value '(' type 'System.Int32'. '. Error: "input string is not well-formed."
    D:\Scripts\T.ps1:6 tank: 58
    + $out. UC = (Get-view $_). Hardware.CpuInfo.NumCpuCores + < < < < "(" + [math]: Tower ((Get-vue $_).)) " Hardware.CpuInf
    o.Hz / 1000000000, 1) + ") Ghz»
    + CategoryInfo: NotSpecified: (:)) [], RuntimeException)
    + FullyQualifiedErrorId: RuntimeException

    Cannot convert value 'GB' to type 'System.Double '. Error: "input string is not well-formed."
    D:\Scripts\T.ps1:7 tank: 72
    + $out. MEM = [math]: Tower ((Get-vue $_).) Hardware.MemorySize / 1 GB, 0) + < < < < 'GB '.
    + CategoryInfo: NotSpecified: (:)) [], RuntimeException)
    + FullyQualifiedErrorId: RuntimeException

    You try to add strings and integers.

    Try it like this

    $ESXHost = "TestESX" $report = @()$out = "" | select Name, CPUs, MEM, VMCount, Model, CPUAvg, CPUMax, MEMAvg, MEMMaxGet-VMHost -Name $ESXHost | % {     $out.Name = $ESXHost     $out.CPUs = [string]$_.Extensiondata.Hardware.CpuInfo.NumCpuCores + " (" + [string]([math]::round($_.Extensiondata.Hardware.CpuInfo.Hz / 1000000000, 1)) + ") Ghz"     $out.MEM = [string]([math]::round($_.Extensiondata.Hardware.MemorySize / 1GB, 0)) + " GB"     $out.VMCount = $_.Extensiondata.Vm.Count     $out.Model = $_.Extensiondata.Hardware.SystemInfo.Model     $out.CPUAvg = [Math]::Round((($_ | Get-Stat -Stat cpu.usagemhz.average -Start (Get-Date).AddDays(-1) | Measure-Object Value -Average).Average),2)     $out.CPUMax = [Math]::Round((($_ | Get-Stat -Stat cpu.usagemhz.Average -Start (Get-Date).AddDays(-1) | Measure-Object Value -Maximum).Maximum),2)     $out.MEMAvg = [Math]::Round((($_ | Get-Stat -Stat mem.usage.average -Start (Get-Date).AddDays(-1) | Measure-Object Value -Average).Average),2)     $out.MEMMax = [Math]::Round((($_ | Get-Stat -Stat mem.usage.Average -Start (Get-Date).AddDays(-1) | Measure-Object Value -Maximum).Maximum),2)     $report += $out}$report
    

    BTW since PowerCLI 4.1 you need not to do these cmdlets Get-see more.

    These data are available in the Extensiondata property.

Maybe you are looking for