A snapshot is a copy of data taken at a specific point in time.

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Problems with pid files when restoring OpenVZ snapshot

I am trying different ways to take snapshots of running openvz containers. Following this guide : http://openvz.org/Checkpointing_and_live_migration, I always encounter an issue with pid files ...
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2answers
250 views

xenserver snapshot chain too long

I've been running a XenServer 6.2 server for a month or so and recently one of my VMs will not perform snapshots. I receive the error "The snapshot chain is too long" although I have removed all of ...
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2answers
28 views

Windows Server 2003 activity monitoring and reporting

I have BackupExec 2012 attempting to backup a Windows Server 2003 VMWare instance. I often get unable to quiesce error: "The virtual machine may be too busy to quiesce to take the snapshot." I've ...
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2answers
406 views

Move snapshots between machines

I have two VMs one(VM2) was created from a template of the other(VM1). I added VM1 to SCVMM library without cloning it first, now I can't access it, deploy it, or create VMs using it. To create VM2 I ...
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2answers
383 views

How to automate Hyper-V Snapshots?

I have a Windows 2008 server with two virtual machines in Hyper-V, how can I automate the process of taking a daily snapshot and automatically deleting those older than 7 days?
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1answer
166 views

LVM+MongoDB. Dropping in speed of backup creation

Till recent time we have been making mongo backups archiving LVM snapshot on hidden SECONDARY server with RAID10 on SAS disks. Currently operation on making snapshot from volume with 500 Gb of data ...
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1answer
52 views

ZFS snapshots and atomic updates

So I'm tinkering around with ZFS on linux and zrep. I've got 2 VMs on my laptop and I'm running zrep and synchronizing the contents of one filesystem to another. One unexpected situation is this: ...
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1answer
125 views

What will be deleted when I delete snapshot?

Using ESXi 5.0, I had a disk which was converted from VHD to VMDK using Winimage which left me with a sparse VMDK. I tried to snapshot the VM after importing it which caused a problem. I believe I ...
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1answer
2k views

SQL Server 2008 R2 - Cannot create database snapshot

Server: Windows Server 2008 R2 X64 Enterprise SQL: SQL Server 2008 R2 Enterprise X64 I have a default SQL Server instance, the SQL Server service account is running as a domain user. I am trying ...
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1answer
28 views

handle multiple calls of rsync, dd and snapshot

The server runs the following operations often. It takes a snapshot of a logical volume, then backup up the content to the remote backup server. It is possible that multiple backups and transfer ...
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1answer
69 views

Hyper-V How to define “auto revert” to a snapshot after each reboot

I'm using the built-in Hyper-V that comes with Windows Server 2012 R2 and I'm looking for the option that lets me to set "auto revert" (or "auto apply") to a specific snapshot after the machine is ...
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1answer
103 views

LVM2: How to copy snapshots?

I read What does an LVM2 Snapshot contain? and LVM Snapshot confusion. What I'm trying to figure out is if there is a way to create a copy of an LVM snapshot for use with different Xen VMs. I know ...
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95 views

Cloning instance - Original kernel not available when creating AMI

I have a EC2 Ubuntu server on Amazon cloud and I'm trying to clone an instance "X" by creating a snapshot of the instance and creating an AMI from that snapshot. The problem is: When creating the AMI, ...
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1answer
921 views

What can go wrong with dmsetup suspend / resume?

I have a backup procedure for ec2 instances with lvm spanned volumes that does the following: 1) ssh to the box as root using an ssh forced command to dmsetup suspend the spanned volume. 2) take an ...
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1answer
126 views

What VM control panels support snapshots?

Which web based control panels provide snapshots? Please include free software and paid software < $1000. If you can, be specific as to if it supports: VMWare Xen Virtuozzzo OpenVZ Other ...
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1answer
204 views

Huge Server: Backing Up Many TB of Data with Instant Failover?

We have a very challenging system to back up: 1. We have 20 TB of data right now. 2. Each month we get another 3 TB of data, and about 5 TB of data changes each month. 3. We are currently a ...
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1answer
121 views

Problems with USB-Devices using VDR

I'm using VDR on vSphere4. It works sucessfully. I've already backuped several VMs with VDR and I like it very much. But now we got a problem. We have 2 VMs, using an USB-Device Server with a stick ...
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1answer
67 views

Create centOS6 snapshots

How can I create snapshots of system (similar to what VM have) of a centOS 6 to a network location? That is I need to know what software/package should I use and maybe some ways to work with it.
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40 views

Proper way of handling LXC containers on btrfs

Lets say we have one server with lxc installed, and a lxc container used for as a base img /var/lib/lxc/ubuntu_base. For simplicity let's forget the config changes after copying the base img. some ...
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41 views

Change the logical volume

I am quite new this snapshot process. Let, I have three logical volumes as A, B, C. I worked on logical volume C. But accidentally when I restart the system, it goes to the snapshot A. How can I ...
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0answers
90 views

Windows WMI get a snapshot EnabledState

I am trying to get the EnabledState of a virtual machine snapshot using WMI. That is I try to get the EnabledState that was current for the virtual machine when the snapshot was taken. So far I know ...
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0answers
279 views

Downloaded -flat.vmdk from snapshoted machine is different everytime

I have a virtual machine running on VMware ESXi 4.1.0, machine has one Thick provisioned disk stored in VM forder (residing on local datastore). I am planning to move the virtual machine to another ...
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Hyper V 2012 and snapshots

I have a Windows Server 2012 with HyperV role installed. I have 3 virtual servers and 2 Disks about 900 GB. One of these servers has 3 snapshots. The problem is this at we shut the virtual server ...
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87 views

reclaim space from xen server

i found xencenter stotage => general tah display 1096.6 GB used of 1107.7 GB total (708.5 GB allocated) seen some space have been eaten and not release. the SMLog show that [13816] 2014-03-28 ...
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280 views

Samba 3.5 Shadow Copy for Windows 7

Over the past several days I have been trying to get the shadow to work with samba but haven’t been successful. Can someone check below config and let me know if I am missing something? We are using ...
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205 views

Replication with Veeam causes timeouts on large VM's

I have been trying to replicate two of my larger VM's one being Exchange 2003 and once the snapshot begins to commit the server begins to time out. I have updates my ESX hosts from 4.0.0 to 4.1 and ...
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116 views

TFS 2010 and SCVMM to manage snapshots

I have a VM with TFS 2010 and SCVMM 2008 installed on (I know you're told not to do that). I have SCVMM linked to the host and that's working good, and have configured the scvmm on the lab management ...
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73 views

How to Purge old EBS backups?

Anyone knows of a good way to automatically purge old EBS snapshots? We have a cron script backing up the whole instance from inside, via EC2 API snapshots, but the snapshots tend to accumulate. I ...
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611 views

Troubleshooting 'Could Not Start' scheduled task error:

I'm trying to run snapshot on my server to back up the drive onto a local NAS server. I'm currently using this on a Win2k, Win2k3, and Win2k8 servers. Both the Win2k and Win2k8 servers are correctly ...
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188 views

VMWare ESX4 snapshot failing with “file is larger than the maximum size supported”

I created my virtual machine hard drives with thin provisioning at the maximum of the block size (256gb for 1mb blocks) and then tried to snapshot them, failing with the error "file is larger than the ...
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20 views

Remove a file from a btrfs snapshot and still use btrfs send/receive?

I'm planing to use btrfs send/receive to synchronize two filesystems and keep a few older snapshots (like a time machine) on the backup. Now what happens if a user ask me to remove a file or ...
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36 views

“Failed to Snapshot” error when converting a physical server to a VHD in XenConvert version 2.5

Problem While using XenConvert 2.5.0.2918 to convert a physical Windows 2008 R2 server to a Virtual Hard Disk (VHD), I receive the error "Failed to Snapshot" in the logs and the conversion does not ...
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30 views

bad inodes in KVM guests

I ran a script to snapshot all logical volumes from KVM guests and backup. But /var/log/messages reported these errors: Jun 02 09:57:08 server lvm[24245]: Monitoring snapshot ...
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55 views

xenserver backup producing snapshot too long

I am having the same problem as outlined in this question: xenserver snapshot chain too long I don't have enough rep to comment on the post so I am creating my own question. I have attempted to use ...
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0answers
97 views

Debian 7 auto mounting .zfs snapshot directory

Today I come with another weird thing on Debian 7 that I cannot explain myself.. Context : Os: Debian7 Kernel: Linux http-apache-01a 3.2.0-4-amd64 #1 SMP Debian 3.2.54-2 x86_64 GNU/Linux This system ...
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Is there a way to script a snapshot for the purposes of application installation and package creation?

I know there are solutions that do this in the wild (and some are free) that perform difference based app packaging (hard drive based snapshots), but for some reason when I use them for those tough ...
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59 views

Hyper-v takes a long time to create snapshots

I'm not sure when, but I've noticed as of recently, whenever I go to make a snapshot of certain machines, it hangs at 2% for a good while and then eventually finishes (fairly quickly, actually). I ...
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57 views

virsh-snapshot delete behavior in libvirt

What happens to the data after performing a virsh-snapshot delete of the most current snapshot for a domain? Does it merge the data into the existing qcow2 file? Will any new data as of the snapshot ...
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75 views

ESX: allowing users to snapshot VMs without vSphere Client Access

I am using ESX (latest free version 5.X) to host multiple VMs (mainly Windows with some Linux). Users will have control of these VMs and should be able to snapshot them, however I don't want to deal ...
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88 views

Creating a snapshot of an attached EBS volume is not working

I'm trying to create a snapshot of an 8GB volume attached to another instance whose device is named sdh5. I originally created this volume myself and mounted it as an ext4 filesystem. Now I'm trying ...
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37 views

What hints are available to determine if a VPS was reverted to a snapshot

I have a hosted VPS and recently had a problem with it, that they fixed. I'm waiting for them to get back to me on what the problem is. Til then, what hints can a Windows 2008 Server OS give as to ...