Backup Exec Error Backup Snapshot Already Exists
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When performing a backup of a VMware virtual machine, the error message "Error: Backup snapshot already exists" is reported Article:000036131 Publish: Article URL:http://www.veritas.com/docs/000036131 Support / Article Sign In backup exec snapshot technology initialization failure on Remember me Forgot Password? Don't have a Veritas Account? Create a Veritas Account now! Welcome First Last Your Profile Logout Sign in to Subscribe Please sign in to set up your subscription. Close Sign In Print Article Products Related Articles Article Languages Subscribe to this Article Manage your Subscriptions Problem When performing a backup of backup exec snapshot processing a VMware virtual machine, the error message "Error: Backup snapshot already exists" is reported Error Message Backup of the virtual machine 'VM name' failed. VMware VCB framework reported the following error Error: Backup snapshot already exists. Cause Usually VMware Consolidated Backup (VCB) deletes the snapshot that it creates for the backup job. Sometimes, these snapshots are not removed by the VCB framework after the backup operation. This causes subsequent backup jobs to fail with the above mentioned error message. Note: Do not run multiple backup jobs for the same virtual machine at the same time, when this option is selected. A snapshot that one of the jobs uses may be deleted. This document assumes that the users are familiar with VMware Consolidated Backup concepts before selecting this option. Solution To resolve the issue, configure Backup Exec to delete any existing VCB snapshots for the virtual machine before the backup job runs. Perform the following steps: 1. On the Backup Job Properties dialog box, under Settings, clic
Part 2: When Snapshots Go Wrong September 28, 2016 7:51 pm 3 The Missing Manual Part 2: When Snapshots Go Wrong Posted by Justin Paul on February 22, 2011 One thing you are probably going to run into if you have virtualized your servers and http://www.jpaul.me/2011/02/the-mission-manual-part-2-when-snapshots-go-wrong/ are using a snapshot based based backup product are orphaned snapshots. I don't think that is an http://stackoverflow.com/questions/21277052/vmrun-clone-the-snapshot-already-exists official term, but it's the one I'm going to use. Basically a snapshot is orphaned when a backup job is aborted, or fails, for some reason that can't be recovered from by by VMware or Veeam (or whatever snapshot based backup program your using). If you have read my other posts on why snapshots can be bad you might already have and idea of where this post backup exec is going. Problems you might run into include: Snapshot delta files that are not seen from the GUI "Consolidation Helper-0" snapshots "Too many redo logs" if you get more then 32 levels of snapshots VM's that consume entire datastores VM's that are very slow because of too many snapshots That is probably not a complete list, but those are the ones that I've seen. The one that scares me the most is the "Too many redo logs" because unless your monitoring your datastores backup exec snapshot for delta files daily you might not even know its going to happen. Then one day you come in to find that your VM is powered off and you cant power it back on…. this instills panic very quickly 😉 From Gostev on the Veeam Forum: Now, when the last snapshot is being removed from the VM, ESX host creates "consolidate helper" snapshot to host the data writes while actual snapshot is being removed. After that was done, the actual "consolidate helper" snapshot is being injected into the main VMDK by ESX. Because in order to commit the last helper snapshot VM I/O must be completely frozen (for obvious reasons), the commit can only take place if both of these conditions are true: - Helper snapshot size is less than 16MB (which is minimal snapshot size in VMware) - There is very little write I/O going on the VM at the given moment If any of these are not true, ESX will wait, iteratively creating new helper snapshots to host writes while committing old ones (remember, it needs to have smallest possible snapshot before final commit) while waiting for a "good moment" to freeze VM and commit the last snapshot. You might be thinking … well I would certainly catch the problem within 32 days (before it creates 32 snapshots), but it actually takes much less time then 32 days. Depending on how you have Veeam (or your other software configured) it will retry the job several times
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up vmrun clone “The snapshot already exists” up vote 1 down vote favorite I am trying to use the vmrun command line utility to clone the VM on workstation that is currently powered off. I am using the following command using vmrun --help: $> *vmrun -T ws "path-to-the-.vmx-file-of-the-vm-that-needsto-be-cloned" "path-to-the- directory-where-the-cloned-vm-should-be-created" full -cloneName=NameOfTheClonedVM* I keep getting the following error: Error: The Snapshot already exists Am I missing something here? Any help would be much appreciated. clone snapshot vmware-workstation vmrun share|improve this question edited Jan 22 '14 at 8:13 Sankumarsingh 4,97362943 asked Jan 22 '14 at 7:48 pointer_00 62 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote This appears to be very old, but I happened to run into this issue - and find the answer - this evening. The help file means exactly what it says: vmrun clone "Path to vmx file" "Path to destination vmx file" full|linked [-snapshot=Snapshot Name] [-cloneName=Name] Like me on my initial attempt, you appear to be only specifying the paths rather than the vmx files. Try this: vmrun -T ws clone \path\sourcefile.vmx \path\targetfile.vmx full -cloneName=NameOfTheClonedVM Updated to add the 'clone' directive in the syntax. Note that for this to work, the VM must be powered-down or the optional s