Read the last sector of the virtual hard disk

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• The virtual hard disk size

  For worker Analyzer IO VM, it is recommended to create a larger second virtual hard disk that serves as a target IOmeter.

  
  

  Is the size of the virtual hard drive exactly the same workload working set size, which means that all data in the virtual disk is read from or written to storage during the race?

  Do you have other recommendations to decide what size the second virtual hard disk should be a VM worker?

  Thank you

  Rebecca

  Hi RS_1, it's useful, but I was looking for some additional tips for the user guide.

  I received responses from some of the developers of IO parser and also ran a few tests of my own.

  Iometer generates its I/O based on the number of blocks of target disc (i.e. the manually added virtual hard disk on the worker VM).  The size of the disk hard virtual will be be equivalent to e/s working set size.

  For a virtual hard drive that strikes only cache, a rule would be its size to 100 MB.

  For a virtual hard drive that hits the disk, the virtual hard disk could be sized anywhere from 10 GB to the top. The drive, / o most actually hits disc rather than cache.

  To do this, I created a 200 GB thin provisioned virtual hard disk for my e/s VM Analyzer worker. As I ran the Iometer workload, I could see the thin disc quickly increase from almost nothing to its size fully provisioned. This means that the new virtual hard disk sectors were continually being read and written by Iometer. Interestingly, it only took about 5 minutes to flesh out a whole 200 GB drive. Obviously, this speed would depend on the type of I/O profile used.

  I also tested a 20 GB disk Iometer vs virtual a virtual drive of 200 GB. Average latency, IOPS / s and flow were all better for 20 GB disk - because a greater proportion of e/s in this case was hit the cache, tilt the numbers positively.

  So, even at the drive hard virtual, sizes last 10 GB, size of the VHD will affect yet observed performance to Iometer.

• Is there a way to increase the size of the virtual hard disk? in the VM? ESXI 4.1

  HelloW to all.

  I created VM with the size of the hard drive of 80 GB and now I want to increase the size of the 80 GB to 150 GB drive does not add whit extra 70 GB partition but to increase the patitionn of 80 GB.

  Is there a way to increase the size of 150 GB of the virtual hard disk? in the VM? ESXI 4.1

  Thanks in advance.

  If the guest operating system is windows, then follow below process-

  Scenario-1 his drive is not the boot partition.

  1. click on the settings of the virtual machine

  2. Select the hard drive to increase and give the size you want (don't forget that you should have a free space available on the data store).

  3. go to disk to the virtual machine management, and then rescan disk (you will see the unused space)

  4. open the cmd/command prompt, then run diskpart by using the diskpart command

  5 then... the drive... After this list give the command "select disk 1" (1 is the disk you want to expand)

  6. After selecting the disk, type extend (extend order will extend the drive)

  7. exit diskpart.

  Scenario-2 If the drive is the boot partition.

  1. power of the virtual machine. (go on change settings of ==> click on the drive you want to extend ==> copy the path of the disc)

  2. go to any other test VM and add disk--> disk existing use ==> give the drive path that you want to extend ==> Assistant to finish.

  3. Select the hard drive to increase and give the size you want (don't forget that you should have a free space available on the data store).

  4. select disk of the virtual machine management, and then rescan disk (you will see the unused space)

  5. open / cmd command prompt, then run diskpart by using the diskpart command

  6. then... the drive... After this list give the command "select disk 1" (1 is the disk you want to expand)

  7. After selecting the disk, type extend (extend order will extend the drive)

  8 exit diskpart.

  9. go to change the setting of this test VM and select the hard drive... ==> click on remove virtual machine. (do not drive delete)

• Fusion is stopped because the virtual hard disk capacity is reached

  I run Windows XP Pro in a virtual machine with the German Fusion 3.1.1 on my MacBook 13 "with Mac OS X 10.6.2.

  When I try to start Windows the VM said: "VMware Fusion has the virtual machine is stopped, because the capacity of the hard drive (40 GB) is almost reached."

  But this Windows disk management in the first partition 'Win XP Pro' 15 GB to 30 GB are free. And on the second partition 'Install' 8 GB to 10 GB are free.

  I took the snapshot on the virtual machine and have managed hard disk cleanup. But it does not help. Fusion said I do free 1.2 MB capacity of the virtual hard disk. How can I do this, when the merger does not start?

  The opportunity to make more the virtual hard disk of 40 GB to 50 or 60 GB is blocked, I first have to delete the snapshot. But the snapshot is deleted.

  What can I make Fusion work again?

  czer27 wrote:

  When I try to start Windows the VM said: "VMware Fusion has the virtual machine is stopped, because the capacity of the hard drive (40 GB) is almost reached."

  I doubt that what you quoted is the message itself, so it would be more useful if you attach the .log files.  See information for VMware Fusion to help with that.  Howevere...

  I bet that the message is more like "VMware Fusion has suspended this virtual machine because the disk on which the virtual machine is stored is almost full. To continue, free at least MB of disk space. "and as such, you must do exactly what means the message and that is free space hard disk Macintosh not space inside the VHD.  After all, it's the Mackintosh HD stored on the Virtual Machine, isn't?

• Reduce the size of the virtual hard disk

  Are there any known issues with the reduction of the size of a virtual hard drive, I have a machine that has been installed with plenty of disk space, but space is not needed now, so I was going to reduce the size in the settings. Any questions?

  So I guess you want to reduce the nominal size of the virtual disk. The VMware Converter Standalone user to achieve this. You choose your comments as the source machine and create a new clone of him while reducing the size of the hard.

  Read the Page 51 of http://www.vmware.com/pdf/converter_standalone_guide401.pdf

  AWo

  VCP 3 & 4

  Author @ vmwire.net

  \[:o]===\[o:]

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• Cannot change the size of the virtual hard disk

  I created a virtual server W2K8 and initially set the size to 40 GB provisioned. I am trying to increase the size, but the size "configured" is

  grayed out?  What hurts?

  thread moved to the VMware Knowledge Base for Virtual Machine & Guest OS

  Also, make sure that you don't have any Active snapshots.

• How to specify the file of virtual hard disk when you create a new virtual machine using virtual hard disk on the data store?

  I'm new to PowerCLI and find quite simple, but in the documentation I read, I don't see how to use a virtual hard drive, existing on a data store when you create a new virtual machine.

  Is this simple registration on the virtual hard disk, or did I miss something?

  My current create VM is the following statement:

  New-VM

  -Name $TargetHostName -host $TargetVMCenterHost -data store $TargetVMCenterDatastore DiskMB - 20000 -MemoryMB $TargetHostMemoryMB -NumCPU $TargetHostCPUs -ID $TargetHostOS -CD -Description $TargetHostName

  Didn't notice this before, but I think that vSphere will use a backslash instead of a slash in the paths.

• Compact virtual hard disk and change the type of drive in static

  Hi all

  I want to change the type of my dynamic static vm disk and now I want to compact the virtual hard disk memory for this virtual machine but I want to it without affecting the control points of this virtual machine that I created earlier. I use the SCVMM 2012 administration console. Any reg suggestions it will be useful.

  Thank you

  You should post your question in the following forum for help and appropriate responses:

  http://social.technet.Microsoft.com/forums/en-us/w7itprovirt

• Defragment the virtual hard drive in vSphere 4 hypervisor

  Hey guys

  
  I noticed the hard drives on my VM were fragmented badly in the operating system and the virtual hard disk from VM.

  I defragmented the hard drives in the Server 2008 window, but I can't find how to defragment the virtual hard disk from VM. I thought that you could power off the virtual machine, change the settings of the virtual machine and choose defragment the hard drive of the virtual computer. However, I can't find this option.

  Is it possible to defragment a VM hard drive in vSphere Hypervisor 4? If yes how are you?

  Any help would be greatly appreciated.

  Kind regards

  Aaron

  This link is the best... http://ITKnowledgeExchange.TechTarget.com/virtualization-Pro/defragmenting-virtual-machine-disk-files/

• Virtual hard disk is different from the physical?

  C:\Users\admin > vssadmin list writers
  vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
  (C) copyright 2001-2005 Microsoft Corp..
  Error: Unexpected failure: catastrophic failure

  Hi all, it's a 2003 SP2 x 86 box of 50 gigabytes VHD. Normally on a physical server, if I get such an error I ran check disk, but not sure of the virtual. My question is - should I run check disk on a VHD? Looks like a question of OS, but the goal here is to find out more about VHDs. Is it a common practice to treat a hard virtual as a physical drive? Is in practice to run tools like HDD check disk, defragmentation on a VHD? Where the problem lies if the virtual hard disk has errors & how fix/repair VHDs? Thanks in advance.

  Welcome to the community,

  Basically, you can treat the virtual drives from within the guest as physical OS. Defragmentation may not be useful, but chkdsk is definitely something you need to run in cases like this to check the logical integrity of the NTFS file system.

  André

• Removing the virtual HARD drive / Datastore

  Hello

  Noob from VMware, which has inherited a system of perconfigured here-

  System = vCenter Server 4.0

  I have a datasotre that is down and which contains a couple of virtual hard disks associated with virtual windows servers. Are not readers of operating system on servers, but they are readers previously configured windows backup (backup of the Server 2008 and 2003).

  "Therefore, the servers went offline and when I try to start the server I get a message saying"virtual disk"drive hard n is not accessible on the host:

  Because virtual servers are powered off can I just remove the drive through the settings or Windows OS to complain that a disk is missing and if yes is there a way round this?

  The data store was a store NFS running on an old box of linux which is dead completely and can not be recovered, if I need too know how tell - associate this store from the servers.

  Thakns to help you

  Kipster

  Hello

  Hello from the Canada

  Yes, you can simply delete the virtual hard disk to the Virtual Machine through 'change settings '.

  Then turn on your VM again

  Once you have your data store to save and launched, you can add it back into your virtual machine.

  Concerning

• Restore the virtual hard drive backup on a different node with different IP and host name.

  Hi guys,.
  I want to do the following.
  
  My reliable backup strategy is the virtual hard drive backup. The database is installed on a virtual particulay machine (node). Now, I do not take the backup of the DBF files or control files or files from archive.
  I rely on the virtual hard disk backup. It takes the entire Virtual Machine backup. Now, I wanted to restore this virtual hard drive backup to a different node with different IP and host name.
  But before I start the database, there are some things I need to do.
  As change address IP address and the hostname registered with the database installed and its services.
  
  Please guide me through the steps on how to perform the activity.
  
  Concerning
  Lam...
  SOA admin.

  I think that the whole operating system will be restored in a new virtual machine... I have it... The changes will have to be done in the file listener.ora (hostname or IPADDRESS and also PORT NO in case you want another port as the existing one). Once you have made the changes that you have to bounce the listener, I mean stop and start the listener... I don't think that any other changes are needed... Make sure that the same need for entries (from the listener) to be included in the TNSNAMES file. ORA file both client-side... The tns service is used to connect to the remote database server (from the demand side or whatever source you used to connect to the database server)... I just think that the change to do... Hope its clear... Please try...

  HTH
  Kind regards

  IMRAN KHAN

• How to expand your virtual hard disk while host hard disk space is not enough?

  People,

  Hello. I use VM Player 3. My host computer is Windows 7 and VM is Oracle Linux 5. I need to expand the virtual hard drive Oracle Linux 5 from 100 GB to 150 GB. When I click on VM > Settings > hard drive > utilities > expands...

  The error message:

  There is not enough space on the file system for the selected operation.

  To after my understanding, we have enough room to store the VHD original more expanded VHD.

  This means that the free space on the host needs to be 100 GB + 150 = 250 GB

  The total size of the hard disk of the Windows 7 host is 284 GB. The VM already occupies 100 GB of 284 GB. The maximum free space is 184 GB less space and boot OS. This means that I can't develop the 100 GB to 150 GB VHD.

  But I have to expand the virtual hard disk! I don't know if there are other ways to expand the virtual hard disk.

  My question is:

  Folk understand some ways to expand the virtual hard drive ranging from 100 GB to 150 GB drive hard host is only 284 GB?

  Thanks in advance.

  You explained, it is the behavior with monolithic virtual disks, which is a unique hard file. Because the file requires more space for its metadata at the beginning of the file, all the blocks of data must be copied to a new file. With the format of sparse file 2 GB virtual disks can be extended without the need to copy the data into a new file hard, because each the hard contains its own metadata. In case you don't have at least ~ 100GB of disk space you can use vmware-vdiskmanager convert/clone the virtual drive command line utility in a format of 2 GB sparse file, delete the original virtual disk (after saving), then use vmware-vdiskmanager again to rename the new virtual disk to the old name. Once done, you will be able to expand the virtual disk as required.

  André

• Dual Boot with windows XP Pro with 2 HARD drive, error on secondary windows install: "Windows did not start because of a configuration of the disk of the computer problem. Could not read the selected boot disk. Check boot path and disk hardware... »

  Hi, I recently bought a new Hitachi 1 TB internal hard drive. I wanted to do a clean install on the new drive (d), be able to dual boot my computer and leave my old 300 GB disk (C :) as the primary windows installation. After physically installing the new HARD drive, I noticed that "new hardware found" and the the brand name flashed in the bottom right corner. I thought I'd see the new hard drive in my computer, but I did not. I initialized the new HARD drive with the computer management window (right click on my computer - manage) and I also formatted in NTFS (I had to change my printer hard drive letter to assign the new HARD drive with the letter D, but I've made other changes after this step). Now, I could see and use in my main windows on the C: installation. I then installed a windows new copy XP pro with the installation CD I got for my C: but on the D: (Note: I have a Dell computer (and the Dell reinstallation CD) and my current version of windows has SP3 while the installation CD is only SP2) (I also reformatted my HARD drive during the installation of windows to NTFS)

  Now when I try to start on installing the new on my D: I get "Windows did not start because of a configuration of the disk of the computer problem. Could not read the selected boot disk. Check startup disk and hardware access path. "and another line saying to refer to manuals HARD drive and windows.

  My Boot.ini file at this time was:

  [boot loader]
  Timeout = 5
  default = multi (0) disk (0) rdisk (0) partition (2) \WINDOWS
  [operating systems]
  "multi (0) disk (0) rdisk (0) partition (2) \WINDOWS="Microsoft Windows XP Professional "/ noexecute = optin/fastdetect
  "signature (ac516a5c) disk (0) rdisk (0) partition (1) \WINDOWS="Microsoft Windows XP Professional own "/ noexecute = optin/fastdetect

  I looked towards the top of this help page, but for now I'm unlucky:

  http://support.Microsoft.com/kb/314477

  (The next steps I took by throwing from the Windows CD and go into the repair console)

  I tried to use the bootcfg /rebuild but the line to boot.ini for my secondary HARD drive still does not work.

  He gave me something like:

  [boot loader]
  Timeout = 5
  default = multi (0) disk (0) rdisk (0) partition (2) \WINDOWS
  [operating systems]
  "multi (0) disk (0) rdisk (0) partition (2) \WINDOWS="Microsoft Windows XP Professional "/ noexecute = optin/fastdetect
  "signature (ac516a5c) disk (0) rdisk (1) partition (1) \WINDOWS="Microsoft Windows XP Professional own "/ noexecute = optin/fastdetect

  I also tried to change the signature() to multi (0), but it did not work. (or try almost all possible permutations of disk() and rdisk() partition() 0 to 2).

  I also tried to use expand F(dvd-drive):\i386\ntkrnlmp(I_have_a_duo-core).ex_ D:\windows\system32\ntoskrnl.exe and a few other combinations, but I when I login as D:\windows simply, it fails to extend with a message like "could not develop" or C:\windows I get "restricted access".

  I have not yet tried CHKDSK/r, but since I did a clean install on a newly formatted drive... I don't think it would work.

  I've also marked the partition on the D: as active (in computer management), but it did not help me.

  I've done a first installation of windows repair, strangely, I couldn't fix this one... Still does not work...

  My default windows installation yet works very well & I see that windows has been installed on the D: but I'm ideas from how to operate the dual-boot, can someone throw me a BONE on what to do?

  Maybe try to do something with the Boot Manager (whatever it is?) Create a new partition and use it as a boot manager? I don't really want to do this, because if I made a mistake I will be unable to use my computer and dual boot should work without going through all this trouble... But I found this page: http://technet.microsoft.com/fr-fr/library/ee829686%28WS.10%29.aspx

  Could a clean install two HDD help? I hope I won't have to do...

  Someone has an idea?

  PS: I'm not such an advanced user so I need a solution step by step, thanks!

  Edit: I also noted that I can't see my new HARD drive in my BIOS... weird... SATA-0 is my old drive HARD 1 and 2 are my dvd 3-5 readers are 'off' and it doesn't seem to be anything that it is plugged in. I also have 4 bays for internal HARD disks. Now, 2 are busy.

  Edit2: I looked inside my case and enabled the good Sata in the Bios after a reboot it detected the drive correctly. Dual boot doesn't always work well... The fact that it was disable in the BIOS while I was installing the new HARD drive could change anything? Hmm...

  In case I wasn't clear enough: I had a windows XP Pro installed on my C:, bought a new hard drive and installed the same copy of windows on it (d). I think that should allow me to double boot between the two installs different. Even if for some reason I can't boot from one on my D:. Andrew, I do not understand why you so far physically disconnect the other drive, the point of the whole operation is to build a boot.ini file so that the BIOS knows that it y facilities 2 windows and you allow to choose (and not have conflicting problems between the 2 systems), someone correct me if I'm wrong? "Expand" the part of my first post made reference to one of the solutions provided by Microsoft in the first link that I have included in my previous post (but I can't seem to work).

  In addition, it is the procedure that I followed: http://www.ehow.com/how_5950826_boot-two-different-hard-drives.html

  (except I've had the first installation already done).

  Andrew "also, once a new hd is plugged on the pc & running, most of the BIOS will place (them) as 1st priority hd, set the BIOS to do this", you mean that by installing separately from windows on each unit when the other is not plugged in, I could choose what disk to start from defining their priority in the BIOS once they are all plugged back? It's too tedious (as I intend to move frequently between the 2 installs) and requires a computer to other users of the lack of computer knowledge. Unfortunately, it is not a viable option.

  EDIT: I DID IT! Hmmm... Well, I double checked in the recovery console, the path of the new HARD drive with the arc command Scan. Tried to start again with the MULTI (0) in my boot.ini and it worked... I also had my windows install CD in. Maybe that is why I could not start, windows needs the CD to complete the installation? Weird, I don't know what I did to the difficulty it... but hey, it works! Thanks for your ideas guys!

• How can I reinstall (lost) Windows Virtual XP Mode in Windows 7 using the previous or your virtual hard disks?

  I recently had to reinstall Windows 7 Pro X 64 to address an obscure problem. In doing so, I lost my virtual XP Mode of Windows installation. But I still have the virtual hard drive related.

  1. Can I reinstall the VXP in order to use the old hard drive virtual?
  2. If I reinstall VXP using the VHD file, will be what I have already installed there would still be available?

  Hello

  I am happy to know that the problem has been resolved. Please do not hesitate to get back to us if the problem re occurs.

  Kapil Purohit - Microsoft Support