Using PowerCLI for virtual disk latencies

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• Using PowerCLI for VM disk Stats

  First of all - it's really a message to LucD (I know from previous aid tends to prowl this forum ), just thought I'd share, as is all the useful info and any idea LucD at will without doubt be useful for all.

  Hi LucD,
  First of all - thanks for a great selection of posts on Reporting for Powershell vSphere - well worth the time and a have read for anyone.
  http://www.lucd.info/2009/12/30/PowerCLI-vSphere-statistics-part-1-the-basics/
  http://www.lucd.info/2010/01/05/PowerCLI-vSphere-statistics-part-2-come-together/comment-page-1/#comments
  I'm certainly not a good PowerShell - but I was able to understand and make changes to my profit - so I thought I would share my findings and ask a few questions.
  With your script as a basis - I was able to reach the following which SHOULD let me look at all VMs in VC one statistics collect virtual disk in time for VMS different discs, (IOPS / s, Throuput and latency) I use VC 4.1 and and NFS storage attached, I believe that these statistics are OK but would have your insight on this.
  I am very pleased with the script - but he needs more tests on a valid site, rather than my region little test, but I'm sure that from a point of view 'PS' there is more efficiency to win.
  First of all - is it possible to get all the statistics at a time-, rather than to make 6 calls per VM? (I'm also sure that the ' += ' a stat the following may not be ideal)
  Also - is there a way can control the output to the CSV file, it seems to put the columns in order any, he loves and layout does not appear to be linked to the order of a group object? Can it be controlled so I can have the entries 'value' and 'unit' next to each other
  ?
  Any insight and assistance would be appreciated, and I hope that others will give it a try and let me know if it works for them too.
  Thanks again for the inspiration and the vision that made me this far
  Tony.
  ESX 4.1, VC 4.1, 2.0 options, PowerCLI 4.1.1
  # Main Variables
  $sVCentre = "IP VC.
  $sVCUser = "administrator@domain".
  $sVCPwd = "password"
  $strVMWildCard = «*»
  $strCSVName = "Stats-AvgVMDiskWriteStatsWorkingday.
  $strCSVLocation = "c:\". »
  # define the start and end times for a day's work.
  $today9am = (get-Date-time Minute 9 - 0 - 0 second)
  $today5pm = (get-Date-time Minute 17 - 0 - 0 second)
  $intStartDay = - 1
  $intEndDay = - 1
  # Begin script
  #Connect to the CR
  Connect-VIServer $sVCentre - $sVCUser of the username-password $sVCPwd - ea silentlycontinue
  $arrVMs = get - VM | WHERE-object {$_.} Name - like $strVMWildCard}
  foreach ($strVM to $arrVMs)
  {
  Write-Host "get stats for:" $strVM.Name
  Write-Host "'-Assembly of latency of writing Stats" "
  $stats += get-Stat - $strVM - Stat virtualDisk.totalWriteLatency.average entity - start $today9am. AddDays ($intStartDay) - finish $today5pm. AddDays ($intEndDay)
  Write-Host "'-bringing together reading latency statistics '"
  $stats += get-Stat - $strVM - Stat virtualDisk.totalReadLatency.average entity - start $today9am. AddDays ($intStartDay) - finish $today5pm. AddDays ($intEndDay)
  Write-Host "'-Assembly Stats ARE Ops / s reading" "
  $stats += get-Stat - $strVM - Stat virtualDisk.numberReadAveraged.average entity - start $today9am. AddDays ($intStartDay) - finish $today5pm. AddDays ($intEndDay)
  Write-Host "'-writing ARE Ops / s Collator Stats" "
  $stats += get-Stat - $strVM - Stat virtualDisk.numberWriteAveraged.average entity - start $today9am. AddDays ($intStartDay) - finish $today5pm. AddDays ($intEndDay)
  Write-Host "'-Assembly Read Throughput Stats" "
  $stats += get-Stat - $strVM - Stat virtualDisk.read.average entity - start $today9am. AddDays ($intStartDay) - finish $today5pm. AddDays ($intEndDay)
  Write-Host "'-writing flow Stats of collation" "
  $stats += get-Stat - $strVM - Stat virtualDisk.write.average entity - start $today9am. AddDays ($intStartDay) - finish $today5pm. AddDays ($intEndDay)
  Write-Host $stats.length
  # include data and gather stats on average for the day.
  } $groups = $stats | Group-object - property {$_.} Entity, $_. MetricId, $_. Instance}
  $report = $groups | % {
  New-object PSObject-property @ {}
  Description = $_. Group [0]. Description
  Entity = $_. Group [0]. Entity
  EntityId = $_. Group [0]. EntityId
  Instance = $_. Group [0]. Instance
  MetricId = $_. Group [0]. MetricId
  Timestamp = $_. Group [0]. Timestamp.Date.AddHours ($_.) Group [0]. Timestamp.Hour)
  Unit = $_. Group [0]. Unit
  Value = [math]: Round (($_.)) Group | Measure-object-propriete value - average). On average, 2)
  }
  }
  #Exporting the report to a CSV file.
  $strCSVSuffix = (get-date) m:System.NET.SocketAddress.ToString ('yyyyMMddhhmm')
  $strCSVFile = $strCSVLocation + $strCSVName + $strCSVSuffix + "_", ".csv".
  $report | Export-Csv $strCSVfile - NoTypeInformation - UseCulture

  Thank you, Tony.

  (1) Yes, you can call Get-Stat with several characteristics, the downside is that the results will be mixed and you'll need to extract the correct metric/value objects. What's even better, you can also move all the virtual machines in a single call to Get-Stat.

  (2) the Export-Csv does not specify the order of the columns in the .csv file, I'm afraid.

  The alternative is to write or build the .csv file yourself.

  Capture each line as you like it in a string, and then write that string to a file.

  This is the update script

  # Main Variables $sVCentre = "VC IP" $sVCUser = "administrator@domain" $sVCPwd = "password" $strVMWildCard = "*" $strCSVName = "Stats-AvgVMDiskWriteStatsWorkingday" $strCSVLocation = "c:\"
  $metrics = "virtualDisk.totalWriteLatency.average","virtualDisk.totalReadLatency.average",
      "virtualDisk.numberReadAveraged.average","virtualDisk.numberWriteAveraged.average",
      "virtualDisk.read.average","virtualDisk.write.average" # define the start and finish times for a working day. $today9am = (Get-Date -Hour 9 -Minute 0 -Second 0)
  $today5pm = (Get-Date -Hour 17 -Minute 0 -Second 0)
  $intStartDay = -1$intEndDay = -1## Begin Script
  
  #Connect to VCConnect-VIServer $sVCentre -User $sVCUser -Password $sVCPwd -ea silentlycontinue$arrVMs = Get-VM | where-object {$_.Name -like $strVMWildCard}
  $stats = Get-Stat -Entity $arrVMs -Stat $metrics -Start $today9am.AddDays($intStartDay) -Finish $today5pm.AddDays($intEndDay)
  # group the data and collate the stats into averages for the day.$groups = $stats | Group-Object -Property {$_.Entity, $_.MetricId, $_.Instance}
  $report = $groups | % {
      New-Object PSObject -Property @{
          Description = $_.Group[0].Description
          Entity = $_.Group[0].Entity
          EntityId = $_.Group[0].EntityId
          Instance = $_.Group[0].Instance
          MetricId = $_.Group[0].MetricId
          Timestamp = $_.Group[0].Timestamp.Date.AddHours($_.Group[0].Timestamp.Hour)
          Unit = $_.Group[0].Unit
          Value = [math]::Round(($_.Group | Measure-Object -Property Value -Average).Average, 2)
      }
  }
  #Exporting the report to a CSV file.$strCSVSuffix = (get-date).toString('yyyyMMddhhmm')
  $strCSVFile = $strCSVLocation + $strCSVName + "_" + $strCSVSuffix + ".csv"$report | Export-Csv $strCSVfile -NoTypeInformation -UseCulture
  

• HELP: Cannot find the local storage vmdk file - use an existing virtual disk

  Hello

  Version: ESXi 5.5

  HP Server

  Local hardware-stockage - 2 raid cards - 1) for ESXi os 2) for the virtual machine

  (1) I added 2 FVO and VMDK (12 giga) files from the Vsphere Client interface to the storage 2-> Browse the data store and a download of my files - no problem

  (2) I'm trying to create a virtual Win2K8R2 machine and when I want to use a virtual disk available - I m from the disk to the file path with innovation - I go to my storage2 - empty - nothing - I m not able to use the VMDK file!

  If you can give me advice or a solution, that would be great

  PS: I use chmod on my 2 files, RW is no one

  Best regards

  RV

  Welcome to the community,

  Assuming you are trying to do this with an OVF default value, it's actually what to expect. Instead of upload files on a datatore, import the OVF menu "File" of the vSphere Client.

  André

  PS: Discussion left CloudCred for VMware ESXi 5

• New virtual file server using an existing virtual disk

  Hello world

  Recently, I update our hosts ESX3.02 3 vSphere4. Everything went well

  I am now trying to build new Server 2008 R2 64-bit virtual machines. I just finished the print server and am now looking at the level of the file server.

  I created the virtual machine and configured the latter as I want with a boot partition and the C drive with the installed operating system... The next step is to sort the data side, i.e. the readers of corporate network. Rather than create and assign the new virtual disks to the new server and a data copy server current to the new, I think a much more simple and less time would be to point to my new file server on the virtual disks of current servers, then assign drive letters in Windows Server.

  I suspect that it is not possible to have two servers sharing the discs at the same time, but this isn't a problem that, off hours, I close the current, start a new, point to the current virtual disks, assign letters D and E test and then delete the old file server.

  Is this possible and if so what are the implications re file sharing, permissions etc.? The current folder and the file ACL to stay?

  Any info would be greatly appreciated.

  Thank you

  You are right. You can detach a disk from a Windows VM and attach it to the other. You can "do simultaneously, unless you use some sort of cluster management system.

  About the ACL, I am not able to guarantee that they will continue, but I think that NTFS is "good enough" to do this.

  Marcelo Soares

  VMWare Certified Professional 310/410

  Master virtualization technology

  Globant Argentina

  Review the allocation of points for "useful" or "right" answers.

• There is no more space for virtual disk by turning on POS device.

  

  NOTE: After 2 days to schedule a daily backup of a critical server, WTP device is off and throw the foregoing pushed error while it turn. I understood that VDP device disk space is less than the amount of data backup pd. kindly suggest me how to overcome this problem.

  (physical host 3 + 1 environment SAN, VDP is located on one of the host's local storage physical there not on the SAN)

  looking for your kind suggestions/solutions.

  Kind regards

  Alaka

  ... VDP is located on one of the host's local storage physical there not on the SAN

  According to the error message, local storage of the physical host has run out of disk space due to unit VDP growing (thin provisioned) data disc "Data Protection 6.0_1.vmdk". Backups require more than currently available disk space, so there is not a lot of options available. You must either increase the data store to which this virtual disk is stored, or migrate to another, more department store of data if you want to continue to run backup jobs as they are currently configured.

  André

• There is no more space for virtual disk... false positive?

  I have a particular virtual machine that is locked and I presented:

  «msg.hbacommon.outofspace: there is no more space for disk virtual veeam2.vmdk.» You might be able to continue this session by freeing up disk space on the affected volumes, then click Retry. »

  Ago 1.44 TB of free space on the data store itself. The virtual machine has a single 75GB vmdk and thin is put into service. Storage used on the vmdk is only 35.3 GB. There is no snapshots on this machine. What I'm missing here?

  Thanks in advance.

  Since the client vSphere, if you right click-> properties data store-> manage paths, it will show all the targets for a data store.

• Using regedit for low disk space window

  My D drive is completely filled, as I use it as support for now. Low disk space appears several times. I followed the steps in regedit to stop him, but under the policy section, there is not explore. What can I do to prevent the window from appearing without free space on my D drive? What can I do if the Solution Explorer is not under the section of the policy? Thank you.

  Remove popups cure the symptoms but not the cause. Here are a few suggestions:

  • Do not use an internal hard drive for backups. Making it largely denies the end of a backup.
  • You get an external 500 GB drive in a box 2.5 "USB when your backups. It costs less than $60,00.

• Removal of all the snapshots--> error: more space for virtual disk...

  Hello everyone

  I'm quite new to VMware and has failed to find a solution for my problem. If someone could help me, it would be awesome!

  During the migration of a SBS2003 guest at a new SBS2008 customer, I made some shots. I have now finished, the new SBS2008 works well and is already in production. Now I wanted to free up the space occupied by all these snapshots and finished with this error:

  There is no more space for disk virtual hercules2.mydomain.local - 000005.vmdk. You might be able to continue this session by the release of disk space on the relevant volume, and then click Retry.

  The SBS2008 still seems to work very well. All snapshots in the Snapshot Manager left... but when you browse the data store the snapshot files are still there.

  How to proceed now?

  Thanks in advance everybody!

  Renaud

  If you have another store of data with extra space, you can clone the virtual computer to the another data store.

• Using PowerCLI for update vROps

  Now that vROps API fully support REST and PowerShell supports the REST, how can I take a power shell script and do something like:

  • import a list of virtual machines from a CSV file
  • vROps by using components REMAINS powerShell
  • Create a custom group in vROps containing these virtual machines?

  Thank you!

  So, you can use Invoke-RESTMethod to call the REST API.  Of that, it returns a json object type that can be analyzed through ConvertFrom-JSON.  On the other hand, you should be able to use ConvertTo-JSON to create the text of the PUBLICATION using Invoke-RESTMethod command.

  I personally have not tapped into this area yet and probably won't be able to, but I used a lot of PowerShell to make interaction REST API without difficulty, this should be no different.

• I have the same problem as the guy from the system restore, however, I received a notice that a prgram wrote a file in the box use windows for virtual memory

  one of such custom of norton of the tip allow the system restore work. tried to uninstall norton online and it locksup after, uninstall the type selection screen. neither work. also it locksup in normal mode, please wait screen after logo & carillon.

  Hi Terror64,

  1. what you trying to accomplish?

  2. Why do you want to do a system restore on the computer?

  3. What is the exact error that you receive when you perform the system restore?

  If you want to uninstall Norton from the computer then use the removal tool using the link below.

  Download and run the Norton removal tool to uninstall your Norton product

  http://us.Norton.com/support/kb/web_view.jsp?wv_type=public_web&docURL=20080710133834EN&LN=en_US

  Important: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do not disable temporarily to install other software, you must reactivate as soon as you are finished. If you are connected to the Internet or a network during the time that your antivirus software is disabled, your computer is vulnerable to attacks.

• Best practices for large virtual disk

  I would add a large virtual disk (16 TB) to use as a backup storage and ideally thin to allow potential available use of, at least initially, a lot of free space.  Headache is the limit of 2 TB for virtual disks in ESXi 5.

  I know that you can extend 2 TB virtual disks in the operating system (win 2008 r2, in this case).  But is it a good idea?  The underlying array is raid 6, so I guess it's safe, but it sounds at least potentially worriesome me on 8 discs.  Not a matter of concern?

  Performance?

  RDM is less flexible and might be impossible (matrix raid is local).

  Anyone have any suggestions on the best practices here?  What would you do?

  I do not recommend the use of the plan span for the file VMDK disks a bad 2 TB and its all parties (several ways that I saw - snapshot problems, corruption etc.)

  Because they are still local drives, you lose flexibility everything that I recommend using RDM.

  A huge ROW for this virtual machine.

  http://blog.davidwarburton.NET/2010/10/25/RDM-mapping-of-local-SATA-storage-for-ESXi/ This departure to configure it.

  As for what I would do, I've done this before and I used RDM, just for 8TB but still.

• Way to the commands per second using PowerCLI

  You can use powerCLI for average orders per second of a virtual machine on a historical period in the same way, as you can with cpu.usagemhz.average?

  Just to clarify:

  Does

  datastore.numberreadaveraged.Average

  give me information on the entire data store connected to the virtual machine? Or is information specific to just the VM I comment on?

  (In this case, I'm eager to get all the IOPs for all all of the virtual disks connected to a specific virtual machine)

  It gives you the IOPS / s specific to entire virtual machine and not the data store.

  Also - I'm the zeros for my data when I launch the present.  I see in vSphere client commands per second only to the data in real time, not for the last day, week or year.  Is it because of my level settings statistics?

  Yes, vCenter 5.0 and place unfortunately don't collect statistics of e/s long term on a per-VM level more.

  However, you can still add these values to return to lower levels of statistics as described in this article:

  http://alpacapowered.WordPress.com/2012/12/17/control-vCenter-performance-counter-collection-and-get-back-VM-IOPS-statistics/

• Virtual disk 1 gradient

  I have a Dell server that has 6 disks in Raid 1 3 bays. A drive has been replaced and came as "Foreign" so I followed the process to clean it, and now it shows "Ready". I need to add back into the Raid 1 mirror for virtual disk 1 as but it won't allow me. I chose the system-> Storage-> virtual disks in OMSA. For the second virtual disk (which is showing degraded) I've selected Assign/Unassign Dedicated Hot Spare, then run but I get a message that reads:

  Storage management shows only disks that can be used as a hot spare. There are at present no discs that are available, large enough, or the correct type to use as a hot spare for this virtual disk

  The disks are the same with the same product ID etc. I would jump just the drive and return as a test, but it's in a data center so I will try to use remote tools to solve the problem.

  RichRaymont,

  When you go to the page of the physical disks, is there a difference in the indicated for both drives? Also check if the controller firmware is current and up to date, I ask that this can be caused by firmware update. Finally, you have the opportunity to rebuild the disk in the bottom of the fall?

  Let me know what you see.

• Cannot create a virtual disk existing; problem with files hard?

  Yes... This is a recurring problem since mid-December, and we finally decided to rebuild our vCenter on another host server.  I went and did the things of the new Virtual Machine and has "custom", so that I can browse and recover files hard and * _1.vmdk of our SAN for discs.

  Now, this large all worked Friday.  I just today... and it doesn't work.  D: drive (* _1.vmdk) disappeared, and I can't either remote on the server.  I can't vSphere, nothing!

  Then... we rebuild, changing the name of the server that we just built _old after stopping.

  When I go to recover files hard again, they are changed...?  I can't explain it!  I've attached a screenshot of what I take everything.

  Now... there at - it a way to solve this problem?  And if not, is it possible to find the information that was in these folders to manage our environment?
  
  Help?

  What you're saying gives me a really bad feeling.

  Sorry about that, I really want to tell you something more encouraging, but...

  Assuming that the snapshot you posted shows the old vCenter server folder, you can see that there are no configuration (.vmx) file more. I can tell you with certainty if the virtual machine has been removed (you can check the tasks and events) or if for example a backup application attempted to do his work but because of the virtual disks had reused problem!

  If you still want to use the existing virtual disks, you must move them to the folder of the new virtual machine in order to avoid any confusion.

  André

• What are the steps to create, format and install a new virtual disk in Windows

  I swear I've scoured the Internet for days trying to find the details of this process, and I'm embarrassed to have failed in my quest to understand what I must be a very simple thing.  The best I can do is this:

  Step 1: Create a new vmdk using vmware-vdiskmanager

  Step 2:?

  Step 3: Get your vmdk newly formatted using vmware-mount, or using "Map Virtual Disk" of the Workstation option

  Now, you will see that somewhere between step 1 and 3, it is an essential step of the new vmdk format so that it can be recognized and mounted.  Simply, I can't find any example online how to do this.  I just know someone will say "just attach to a virtual machine and format her", to which my answer is "how?  It won't let me get an unformatted disk.  When I try to go directly to step 3 after step 1, I get the following error, "error reading volume information.  Please select another file to disk.

  Help!

  VM--> change the settings.

  Hardware tab.

  Add the button.

  Select "hard drive".  Follow the instructions in the wizard.  At the selection of create new floppy or use existing, select "Use an existing virtual disk" and find the vmdk file, you have created.