Thin provisioning is an excellent way to make the most of your existing storage, and could easily help organisations defer buying additional disks for their vSphere servers. It will also save time for administrators, who can now avoid having to manually expand the size of a VMDK that has filled up because it was created without enough headroom — a common problem before thin provisioning.
Administrators can now configure a VM with plenty of VMDK headroom, safe in the knowledge that it will only use the disk space that's actually required. Unfortunately vStorage Thin Provisioning only works in one direction, so free space is not normally reclaimed from the server storage if data is deleted from a VMDK.
This could be done without any VM downtime, provided you have purchased the Storage vMotion option. Data Recovery Thin provisioning is a great addition to the VMware arsenal, but top of the list of new features is probably Data Recovery , which adds comprehensive tools to backup and restore VMs while also minimising the amount of storage consumed by the backup data.
In our tests we found that this feature was surprisingly quick and easy to use. We navigated to the Data Recovery tab in the vSphere Client and clicked on a VM to get the Data Recovery menu, which allowed us to run backup jobs that were already defined, and to define new jobs.
Typically a backup job would include a group of related VMs that should be backed up together. We could also backup an individual VM using the Backup Now option, and could restore individual VMs in much the same way. Restoring a backed-up virtual machine VM from the vSphere Client. Having backup facilities integrated into the vSphere Client rather than needing to launch a separate program is obviously extremely convenient. But the main benefit of the Data Recovery feature is its data de-duplication dedupe capability.
This means that if you backup a VM twice and the only difference between the first backup and the second was a few bytes defining the IP address, the second backup would use only a few bytes of storage. Better still, dedupe works across multiple VMs, so you could conceivably backup a huge number of VMs using only a very small amount of storage. The main limitation of Data Recovery is that it works only with disk-based storage, so you'd need to use additional backup products to put your backups onto a tape library or other offline storage.
Fault Tolerance Another groundbreaking addition is the Fault Tolerance feature, which runs a cloned copy of selected VMs on a second server. The cloned copy runs in lock step with the original, so if the first server fails the clone is ready to instantly take over. Unlike Thin Provision hard disks, the amount of storage used by a TEZ disk is specified when it's created, and does not change dynamically depending on how much data it contains.
VMware ESXi 5. Wednesday, April 11, Running Windows 8 on vSphere 5. If you want to install the recently released Windows 8 Consumer Preview in your vSphere 5 test lab, there is a simple method to get your guest OS up and running even though it is not listed as being supported on VMWare website. No, no tools specifically for Windows 8. Next, right-click mount the ISO, then run setup Do you know if there is a similar patch for VMWare Vsphere 4 clusters?
I just figured out that mce. Thanks, I thought I had updated the article earlier but I guess not. This site uses Akismet to reduce spam. Tuesday, July 24, PM. Well said, TinmanJack. Sunday, August 12, PM. I think I am going back to my WIN7 until there is a greater acceptance. Monday, August 20, PM. Bump - anyone found a fix yet? Wednesday, August 22, PM. Thursday, August 23, PM. Friday, September 7, AM. Monday, September 10, AM. Unfortunately my vSphere center provides Client 5.
Wednesday, October 10, PM. TinmanJack; you deserve points for your answer. Boo to you Mr. Moderator Nicholas Li; shame on you for your ridiculous answer. Glad you got points for your "answer. Jason Lehman. Thursday, November 15, PM. I'm sorry this is not a fix either. Monday, November 19, PM.
0コメント