Time range of statistical performance data store

Similar Questions

• [Performance] Data store Virtual disk LUN or a raw device

  We try to find the solution the faster for one of our internal systems.

  Currently, we have a data store that is located in a SAN iSCSI via a virtualdisk file.

  Since we want to benefit the maximum of iSCSI SAN configuration, we want to know what solution is faster:

  -Via the data as virtual disk (diskfile) store

  -Via direct LUN mappingl (mapping RAW)

  I searched the documents, but it is impossible to find the figures/numbers how much performance gain, we would be able to get.

  Us don't use clichés (and do not use then as well), and what other pinpoints should I also everything by making the decision to change the architecture?

  There may be some performance improvements, you can do in your env, but they come from VMDK of RDM.

  -Matt

  VCP, vExpert, Unix Geek

• Performance data store local vs fiber SAN disk IO

  I'm looking for a table of comparison of performance or other documents that will give me the change in the performance of the disk i/o for virtual machines that are hosted on local data warehouses vs fiber attached LUN.

  Does anyone know where I might be able to find this information?

  (HA, DRS and VMotion are not at stake here).

  Thank you.

  You won't find that.  There is NO way to give a comparison that you are comparing apples and screwdrivers, they are not the same family.

  SAN's storage shared, managed by a central unit full time on a fiber infrastructure.  But it depends on your switches fiber, HBA, your configuration, the disks in the SAN, the manufacturer of SAN, speed of the disks, the number of disks... It goes on and on.

  Each SAN / fiber / Configuration is very different.

  Local storage depends on the RAID configuration, manufacturer, your RAID card, disks... once again more info that can be included.  The line at the bottom is Local disk can be more responsive at times, but since you are limited to the number of disk (6 or 8) are limited to the performance, but the flow is the key.

  You will get a FLOW much more fiber than the local disk.  More load, less stress (since he is not relying on the local system to provide the resources AND the host operating system).

  SAS is better than SATA for the case of all VM on both systems.  so keep that in mind.  It is also very important to comparative analysis.  IOmeter will help you determine what is best for you.

• Cannot display tables of performance of ESXi 4.1 data store

  Using Vcenter, I select the tab performance on each host ESXI4.1. I can view a chart for reading of data store and the latency of writing in real time. However, if I select any period other than in real time, the array is empty.

  Others for example CPU performance measures work well in real time and measures 24 hours a day.

  I have to be able to measure the reading of the data and store latency of writing on at least a 24-hour period. Someone had this problem?

  Examples shown in attachemnt.

  Hello

  Try to change the statistical level in 3:

  go to Administration - vCenter Server Settings - statistics and change the statistical level to 3

  wait for a while and check the historical performance, don't forget, change it back when you did with analysis

  See you soon
  Artur
  

  Please, do not forget the points of call of the "useful" or "correct" answers

• root properties in the connected data store: error when accessing the date/time storage

  When you browse the properties my connected data store I get an error message when you try to read the value of the property of 'storage date/time': object doesn't support this property or method.

  Here is a minimal example:

  Dim oMyDataStore, MyProperty, oMyProperties
  
  Set oMyDataStore = Navigator.ConnectDataStoreByParameter ("TOC", "" & "C:\Program Files (x 86) \National 2012\Examples\Data\Example_data.tdm" & "" ')
  
  Set oMyProperties = oMyDataStore.RootElements (1). Properties
  
  For each MyProperty in oMyProperties
  
    Call MsgBoxDisp ("property name:" & MyProperty.Name & + "\n"&"property value:" & MyProperty.Value "")
  
  Next

  Why can I not access this particular property by default?

  Hi Phex,

  for the date/time properties, an object called UsiTimeDisp is returned. This object allows to that extend features of service as access to each part separately (day, year, hour, seconds,...) of your date/time value. If you want to print the value of time with MessageBoxDisp, you can use the VariantDate this object property.

  Your code might look like this then:

  Dim oMyDataStore, MyProperty, oMyProperties
  
  Set oMyDataStore = Navigator.ConnectDataStoreByParameter ("TOC", "" & "C:\Program Files (x 86) \National 2012\Examples\Data\Example_data.tdm" & "" ')
  
  Set oMyProperties = oMyDataStore.RootElements (1). Properties
  
  For each MyProperty in oMyProperties
  
    MyProperty.DataType = eTime Then
  
      Call MsgBoxDisp ("property name:" & MyProperty.Name & + "\n"&"property value:" & MyProperty.Value. ' ") VariantDate)
  
    On the other
  
      Call MsgBoxDisp ("property name:" & MyProperty.Name & + "\n"&"property value:" & MyProperty.Value "")
  
    End If
  
  Next

  I hope this helps.

  Good day

  Eva

• Script in time of latency list vm e/s and the data store the virtual machine is on

  Hello.  We have a vsphere 5.0 environment and we live a latency of IO heavy.  I'm looking for powercli script will get the latency of i/o for each virtual machine and get the data store name, to what it is now.  We will access our storage on optical fiber.  I'm trying to get a good overview of the latency of IO in a nice view in a csv file.  I found what could be a good basis to https://communities.vmware.com/thread/304827?start=0 & tstart = 0 , but I'm not sure how to get the name of the data store in the table and I think that it is written to the nfs in any case storage.  Thanks in advance for any info\advice!

  Try the next version, it includes the average latency time read/write for the virtual machine and PAHO are / s average for the virtual machine.

  Since the CSV has a row for each data store, the values for the virtual machine are repeated.

  I also added the host name

  $vmName = "VM*"
  
  $stat = "datastore.totalReadLatency.average","datastore.totalWriteLatency.average",  "datastore.numberReadAveraged.average","datastore.numberWriteAveraged.average"$entity = Get-VM -Name $vmName$start = (Get-Date).AddHours(-1)
  
  $dsTab = @{}Get-Datastore | Where {$_.Type -eq "VMFS"} | %{  $key = $_.ExtensionData.Info.Vmfs.Uuid  if(!$dsTab.ContainsKey($key)){    $dsTab.Add($key,$_.Name)  }  else{    "Datastore $($_.Name) with UUID $key already in hash table"  }}
  
  Get-Stat -Entity $entity -Stat $stat -Start $start |Group-Object -Property {$_.Entity.Name} | %{  $vmName = $_.Values[0]  $VMReadLatency = $_.Group |    where {$_.MetricId -eq "datastore.totalReadLatency.average"} |    Measure-Object -Property Value -Average |    Select -ExpandProperty Average  $VMWriteLatency = $_.Group |    where {$_.MetricId -eq "datastore.totalWriteLatency.average"} |    Measure-Object -Property Value -Average |    Select -ExpandProperty Average  $VMReadIOPSAverage = $_.Group |    where {$_.MetricId -eq "datastore.numberReadAveraged.average"} |    Measure-Object -Property Value -Average |    Select -ExpandProperty Average  $VMWriteIOPSAverage = $_.Group |    where {$_.MetricId -eq "datastore.numberWriteAveraged.average"} |    Measure-Object -Property Value -Average |    Select -ExpandProperty Average  $_.Group | Group-Object -Property Instance | %{    New-Object PSObject -Property @{      VM = $vmName      Host = $_.Group[0].Entity.Host.Name      Datastore = $dsTab[$($_.Values[0])]      Start = $start      DSReadLatencyAvg = [math]::Round(($_.Group |           where {$_.MetricId -eq "datastore.totalReadLatency.average"} |          Measure-Object -Property Value -Average |          Select -ExpandProperty Average),2)      DSWriteLatencyAvg = [math]::Round(($_.Group |           where {$_.MetricId -eq "datastore.totalWriteLatency.average"} |          Measure-Object -Property Value -Average |          Select -ExpandProperty Average),2)      VMReadLatencyAvg = [math]::Round($VMReadLatency,2)      VMWriteLatencyAvg = [math]::Round($VMWriteLatency,2)      VMReadIOPSAvg = [math]::Round($VMReadIOPSAverage,2)      VMWriteIOPSAvg = [math]::Round($VMWriteIOPSAverage,2)    }  }} | Export-Csv c:\report.csv -NoTypeInformation -UseCulture
  

• Find the range of a data store?

  I am trying to retrieve the name of the scope that each data store. When I use of GUI of Vsphere Client, I can access it by clicking on a data store and in the configuration tab, so I know that somewhere there exists information.  I have spent a lot of time to API reference and have not found a way to access to information.  Does anyone have any ideas on how I can catch these data?

  I solved it myself, DatastoreInfo is extended by the VmfsDatastoreInfo, which allows you to access HostVmfsVolume which has extensions as a field!

• Performance of SSD data store

  I'd like to get some info on whether or not there are specific settings ESXi for best performance of VMs, sitting on a SSD data store.

  Configuration of the laboratory:

  LSI 9260-8i RAID card

  8 x 500 GB Samsung 830 SSDs (TLC, terrible I know), RAID5 (Yes, I must have parity protection)

  I've constantly tweaked the 9260 and RAID settings to achieve the best possible configuration according to my bearings: 128 KB stripe size, direct IO, reading ahead, disk cache enabled, rewrite with BBU...

  I see that a fairly large performance hit comparison performance native RAID performance vs windows in ESXi when I transplant the same RAID card/SSD in my lab and test ESXi host from inside a virtual machine.  Understood, it is fresh generals of the hypervisor and then overload the virtual machine... but still...

  Looking for someone who has experience with a similar configuration and can provide suggestions/settings...

  Thanks in advance!

  You have option FastPath? This will significantly improve i/o for SSD performance.

  I would also create RAID-50 for the SSD 8.

• Time it takes to move data between LUNS store

  Hello

  I need to move a 466 GB VM between data warehouses using vCenter.

  I have no vStorage Motion, so you will need to turn off the virtual machine first and then migrate. Change data store.

  However, so that I can set up a time to do it, I need an idea of how long it is likely to take.

  The virtual machine is on a San so I will pass out of office hours, the amount of e/s on the other LUNS should be pretty minimal.

  Can someone give me a riddle on it?

  Thank you

  This depends mainly on the speed of the storage. I was going to come, create a virtual dummy with e.g. 10% of the original size and migrate. In this way, you should get a good idea of how long it may take.

  André

• Cloning of VM/TIME to the different data store

  Hi all

  I am working out scripts excellent clone of Ruben garcia and one thing I'm trying to add is to have the VAPP created on a different data store.

  # Clone and move virtual machines
  {foreach ($vm to $vms)
  $vm = $vm | Get-opinion
  $vmname = $cloneName + "»" + $vm.name "
  . \LcloneVM $vm.name - cloneName '$vmname' - «$PortGroup» PortGroup
  Get-vm-name $vmname | Move-vm-destination $vapp;
  The virtual machine are getting cloned and then inserted in the passed TIME as a parameter name, but I can't understand how do to have the VAPP will be created on a data store that I specify. At this time the vApp is created on the same data store where the linked clones. Can I travel after from the user interface by using the migrate command but I want if possible to automate it.
  I thought that the next line should work but the VAPP fails when creating, so the move-vm command fails later.
  # Create VAPP

  $vapp = $host_name | VAPP-new-name "$cloneName" - data store "ThinDiskTesting"

  I am at a loss to what im doing wrong

  Post edited by: BrianRTS - difficulty of setting in the form

  You can specify the data store where you want to create linked clone delta files.

  This requires a slight modification to the script of Ruben

  # Generate specs for clone
  $cloneSpec = new-object Vmware.Vim.VirtualMachineCloneSpec $cloneSpec.Snapshot = $sourceVM.Snapshot.CurrentSnapshot $cloneSpec.Location = new-object Vmware.Vim.VirtualMachineRelocateSpec $cloneSpec.Location.DiskMoveType = [Vmware.Vim.VirtualMachineRelocateDiskMoveOptions]::createNewChildDiskBacking $cloneSpec.Location.Datastore = (Get-Datastore -Name $tgtDatastoreName).ExtensionData.MoRef
  

  Ownership of the data store is used to indicate where the clone should be placed.

  Or you want to create the clones, then move them?

• Data date store creation time?

  Hello. It is possible to know a store of date data creation time?

  Thank you in advance!

  As I know the data store object has no property of creation date.

  But you can use the events, condition you keep these quite a long time.

  This simple script will show you the datastorename and the date of its creation.

  Get-VIEvent -Start (Get-Date).AddMonths(-2) -MaxSamples 99999 | ` where{$_.GetType().Name -eq "VMFSDatastoreCreatedEvent"} | ` Select @{N="Name";E={$_.Datastore.Name}},CreatedTime,UserName
  

  You can play with the Start parameter to change the time to go back.

  The MaxSamples parameter must be filled by a large number, otherwise he may not get all the events for the interval. This of course depends on the activity in your vSphere environment.

• Performance of copy of local data store

  Hello

  I'm trying to copy the vmdk to a data store (first physical disk) to another store of data (second disk on the same machine) with vSphere Clinet Datastore browser. Performance is horrible: 3000 kbit/s. This behavior is normal? I'm getting much better speed while copying the file to the browser to store data http through LAN to my laptop. Read/write in the management of the virtual computer is also correct.

  Virtual machines are all stop, ESXi is in maintenance mode. The server is an HP Proliant ML150 G6.

  Thank you

  USY

  is the local section of the disks has any controller cache battery sustained writing?

• get the history of use of data store

  When you go to the performance tab from a data store that you can see the allocation graph and space used on a range of time.

  How to access these statistics via powercli?

  Get-stattype-entity * does not return all the types of stat for data warehouses

  the point of this is I'm trying to script a report that shows the percentage of data in the last 7 days store

  for example, 80%, 81%, 82%, 82%, 82%, 83% and 83%

  A quick glance at my post called statistical data store

• Configuration of San - data store have more than 1 LUN

  Hello

  We look at our San configuration for improvements. Our San has about 10 TB total.

  We currently have 6 LUN 1.5 TB all which are enclosed in 1 store 10 TB data

  It was suggested that we should NOT combine multiple LUNS in a data store for the reason if 1 LUN goes wrong then the entire data store is non-refundable.

  Although our SAN LUNS are created on top of raid 6 and are therefore a bit 'protected' by councils LUN 1 data store is interesting

  Does anyone have ideas to share?

  Thank you

  Tom D

  I would say that having a single data store, regardless of the underlying storage architecture is probably not a good idea.  Although this configuration is authorized you can paint yourself in a corner fairly quickly.

  1. one wonders about the maximum number of VMDK you should have by the data store.  http://communities.VMware.com/message/944120  Basically the more s VMDK on the SCSI data store more blocking of activity taking place on the disk, causing performance problems.  Each VMware engineer, I've talked about seems to stay around the VMDK 20 a range of data store, but that could change with vSphere.

  2 - How this data store backup and how long does it take?  What happens during a restore scenario?  10 TB is plenty of space and could take some time for the backup.  If you push it on tape and you must always restore the together 10 to it could take weeks or months.  This space by breaking into warehouses of smaller data gives you smaller segments of data that you can restore in case of disaster.

  3 - the number of data warehouses you have is very important if you are always looking to implement the Site Recovery Manager.  SRM relies on your storage device to replicate data between the sites.  There could be serious consequences on the rate of change of the data for a single LUN 10TB.  If you are moving in several data stores that it will make it easier to handle your recovery plan.

  Apart from the considerations above of VMware. I guess 7 performance LUNS in RAID-6 is not so great.  You have a lot of protection, but you pay for it with capacity and performance.  If you went to 10 stores of data and the LUN 10 you can change RAID settings at each data store to optimize performance, protection, and capacity.  For example 4 LUN RAID-10 high performance DB apps and 6 LUNS to RAID-5 for the ability.  With smaller LUN and data warehouses a disk or LUN failure will affect only a smaller set of services rather than your entire data center.

  In short, unless there is a really compelling reason to go with a single store of 10 TB database, I recommend you to change your architecture.

• How do I deselect the option "Submit-performance data" in XP, since none of these items under Options/preferences of Firefox?

  Having recently updated Firefox to 7.0.1 (x 86 en - GB), I was offered the opportunity to submit performance data. Before reading the "Other Info" bit, I clicked on the Yes"" button. When you read the bit of info 'Other Info', I was directed to:
  "
  (Also known as the telemetry) usage statistics. Starting with version 7, Firefox includes a feature that is disabled by default to send to non-personal use Mozilla, performance and statistical reactivity on the interface features user, memory and hardware configuration. The only potentially personal data to Mozilla when this feature has been activated is IP addresses. Usage statistics are transmitted using SSL (a method of protection of data in transit) and help us improve future versions of Firefox. Once sent to Mozilla, statistical usage are stored in form aggregated and made available to a wide range of developers, including Mozilla employees and public contributors. Once this feature is enabled, users can disable in Firefox Options/preferences. Simply uncheck the item "Submit-performance data.
  "
  However, I have no option under Tools/Options, on my XP, home edition, Service Pack 3, netbook.
  Thanks for all the help and all your efforts to make Mozilla exists.

  See tools > Options > advanced > general: system default: 'send performance data '.