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

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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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After restoring a HyperV snapshot, I get “the trust relationship between this workstation and the primary domain failed”

I have a Windows Server 2008 R2 HyperV machine. I had to restore it to an old snapshot, and now I'm getting the following error when logging in through remote desktop using a domain ID: "the trust ...
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12k views

What happens to children when deleting a snapshot in vmware?

I'm new to virtualization and want to make sure I understand what will happen when I delete a snapshot Say I have a tree like this Base SnapshotA SnapshotB SnapshotC Two questions: If I ...
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607 views

Virtualbox snapshot manager

I'm using Oracle Virtualbox from commandline to manage my VMs. I'm talking a daily snapshot of them in a cronjob. But after all I just want to keep the 7 newest snapshots. Is there a way I can do ...
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Automatic ZFS Snapshots on Solaris 10

I'm trying to enable automatic ZFS snapshotting on a Solaris 10 server. From extensive googling, I've managed to understand that there are/were some automated services to do this, like: ...
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convert vmware snapshot to vdi

I found plenty of documentation on how to convert a .vmdk file to a .vdi (VirtualBox) file. But they all assume you don't use snapshots. -- Is there a way to convert the vmdk snapshots too?
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How to export a specific virtualbox snapshot as a raw disk image

I created a Linux appliance for my friends. It's a small Ubuntu installation with Trac, lighthttp and ufw configured. I made it using VirtualBox. Now I want to export the latest snapshot version ...
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193 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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293 views

Synchronization of volume snapshots when doing whole system backups

Is there a way to guarantee consistency across volumes when doing backups from LVM snapshots? Consider this scenario: Some system upgrade is in progress. It will write some files to the /usr ...
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Hidden Periodic Screenshots on a corporate workstation?

Can anyone recommend something that allows us to take hidden periodic screenshots of a workstation? We have a user who we believe is abusing his computer privileges. We have our suspicions that he ...
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1answer
190 views

EC2 AMI, does it mean state or just the program files and OS?

I was wondering if creating an EC2 AMI backup, which means taking a snapshot would just save the OS, along with its settings or say, if a program were running and during that I take an EC2 AMI ...
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207 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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Are ZFS snapshots + S3 a viable backup system for several VMs and general fileserver storage?

I've been tasked with setting up a backup system for my small office (around 12 people). Most of our production stuff is on the AWS cloud, so what I need to back up are some small office/development ...
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1answer
2k views

VMware ESXi 4.1 snapshot of server 2008R2 machine generates 2 indentical snapshots

I have 2 VMs that are failing to get veeam backups, and it appears that the culprit is vmware snapshots. We are running Vsphere ESXi 4.1 build 320092, we have multiple server 2008R2 machines that take ...
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Browse files inside a Hyper-V snapshot

If it possible to browse the inside of a snapshot file for a specific file? It is not possible for us to merge this particular snapshot file so we are looking for an alternative to recover a specific ...
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365 views

Does xfs_freeze suffice to snaphot MySQL db?

I am writing a script to snapshot EBS volumes on AWS. One of the volumes contains the data for a mysql database. I am aware that I need to somehow stop data being written to the database while the ...
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How to have ZFS make snapshots of a directory only when files are changed?

Is it possible to have ZFS make snapshots of a filesystem i.e. pool/filesystem/ only when files are changed? Instead of using cron or something to automatically create a snapshot every 5 minutes is it ...
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250 views

NAS solution for server image backups

We need at least 1TB of redundant storage for server image snapshots to be backed-up using shadow protect. What do you recommend for $1K or so budget? What else should I be considering for this ...
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Help finding ZFS .zfs/snapshots directory in OpenSolaris

My home directory in OpenSolaris 0906 is part of the zpool rpool. I can view the pool in zpool list. I can view the file system in zfs list. I can create snapshots. I can use zfs list and see a list ...
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What's a good backup system to use on ubuntu?

I'm running an internal network LAMP server on ubuntu 10.10. I have another ubuntu running on an older ppc g5 with a 640gb drive in it. I'd like to run some software on that G5 that does some snapshot ...
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394 views

Taking Hyper-V Snapshots to a Network Location

Is it possible to take snapshots in Hyper-V (on Windows Server 2008 R2) directly to a network location? I want to set the Snapshot Location under Settings on the VM to \server\c$\StoreVMsHere. We ...
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Snapshot/rollback for libvirt+KVM?

I've recently begun using KVM for my development/test environment on a Linux host system with 8G memory. Prior, I was using VMware Fusion for my virtual environment, but my Macbook only has 2G memory. ...
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814 views

Strange log messages from LVM and server hang

On one of our OpenSUSE (11.3) virtualization servers we have had some stability problems recently. The server is pretty heavily loaded, with up to 100 virtual domains, all running on LVM snapshots. We ...
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323 views

LVM snapshot keeps changing file timestamps

I searched the web but did not find any info about this. I'm mounting an LVM snapshot and I notice the timestamps of the files there keep changing. I though LVM snapshot was a one time freeze in time ...
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459 views

LVM snapshot of linux 2.2 KVM guest

I have a KVM host running a linux 2.2 guest. The virtual disk for the guest is an LVM logical volume. This is seen by the guest as a real disk, so it's partitioned, has a boot sector, etc. Now my ...
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Question about Consolidate Helper - 0

Recently I had an issue where a virtual machine had ran out of space and was suspended, a restart was able to to fix the issue but when I SSH'd in I noticed there were two large files (both delta.vmdk ...
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LVM 2 snapshots and free blocks

LVM 2 snapshots works as COW. However the block may change even if it is not used anymore. As SSD disks may need marking of free/used blocks to better manage blocks, the API was introduced into Linux ...
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VirtualBox problem: cannot take snapshot

I have just setup a Lucid Lynx desktop machine. I have installed VirtualBox 3.2.6 on this machine to run several server. I have created a new Lucid Lynx server in one VM, the VM creation is fine but ...
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127 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
437 views

VirtualBox, physical disks, and snapshots

I have an Ubuntu guest installed on a raw HDD (entire disk, not a partition). It runs just fine under WinXP. In addition, I was able to boot directly into it (using the BIOS boot-device selector). At ...
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717 views

How to take snapshot of the filesystem in linux (files, their sizes only, not their data)

We need to take a snapshot of your linux server. We don't want to backup the data, just a snapshot we can compare against changes.
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VirtualBox Snapshot - How to stop them to grow and take more and more space?

I am using VirtualBox on Ubuntu with some programs installed in it. And the snapshot file does not stop to grow. I don't need this feature. I just want my data to be saved on the virtual windows hard ...
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CentOS and Snapshots

I'm planning on purchasing a virtual-dedicated server today and would like to pass a quick question by the community here before I do. I'm likely going to be getting CentOS, as that seems to be a ...
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Restoring snapshot for Microsoft Exchange server

The background: I need to do some testing with Microsoft exchange server. Specifically, I'll be installing some software on the Microsoft exchange server machine and uninstalling that same software ...
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2answers
541 views

In place SQL 2008 upgrade vs. Side by side?

I have a SQL 2005 Std edition server with 5 databases in production, 4 db's are used by web-based apps the 5th is a desktop application. My question is should I perform an in-place upgrade or a ...
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1k views

Make a snapshot of a live mySQL database with myISAM & innoDB tables without locking

We have a live database in production where we are running out of space on the server. So I would like to transfer to a new server without any downtime (or as little downtime as possible). In general, ...
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Immutable hard links on ext3/4?

In my research on file versioning at the fs level, snapshotting, and related ideas, I took a look at hard-links and exactly what they are and how they behave. Using rsync you can get a pretty slick ...
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216 views

Deploy virtual PC based on snapshot using Hyper-V

I have a server with Hyper-V configured, it is easy to create a new virtual machine using the management tools, but it can take some time. I often see those hosts that say "We can have your server ...
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548 views

SAN based Snapshots and Disaster Recovery

I wanted to know if anyone has has any expirience of using SAN based snapshots and replication between SANs for disaster recovery. My main worries are around databases and applications like Exchange ...
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489 views

VMware Server 2 Snapshots Crashing Ubuntu Guests

I have about 20+ Ubuntu Guests running on Vmware Server 2.0.2 and every night a backup script takes a snapshot of all running VMs, backs them up, then removes the snapshots. Every morning I check the ...
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6answers
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How do I best archive VMWare VMs for reuse?

I'm using VMWare ESX 3.5. I've just created a couple of different-flavour VMs (a Windows 2008 one and a Windows 2003 one), installed windows updates, and am generally happy with their pristine ...
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1answer
213 views

is CBT used for snapshots?

1) Just wondering, is Change Block Tracking utilised for snapshots (ESX 4.x)? or is the mechanism the same as ESX 3.x 2) I know its used for SVM after reading a punching clouds article ...
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Schedule Recreate Snapshot and Reinitialize Subscriptions - SQL 2005

Monthly I have to generate a new snapshot for replication and reinitialize subscriptions in SQL 2005. I would really like to automate and schedule this, but I'm not having much luck discovering how. ...
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1answer
883 views

Unremovable invisible snapshot

We are running ESX 3.5.0 and are using VCB for making backups. Yesterday VCB failed to remove its snapshot. That has happened a couple of times before, and I removed it manually as usual. But this ...
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2answers
941 views

Live Xen snapshotting?

If I use xm save domain dumpfile, this pretty much accomplishes what I want to do. However, this does cause some downtime, and I really don't want to close network connections or take the machine out ...
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How do snapshot backups work?

How are snapshot backups different from traditional backups? I know that snapshot backups take a minimum of time, but I don't understand how they can do this. Can anyone explain this to me?
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Virtual Machine Snapshot revert issue

After reverting to an older snapshot, Windows Server 2008 VM running on VMWare gives me the following error when I tried to login: The trust relationship between this workstation and primary ...
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208 views

SQL server 2005 Checkdb - no room for snapshot files

I have a 2Tb+ SAP database with 8 datafiles, the first files have grown to fill the available disk space on our HP EVA5000, and the growth is now on the new files. We upgraded SQL from SQL server 2000 ...
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163 views

Backups, JFS2 Snapshots and powerloss

I have recently been tasked with improving the backup strategy of a legacy server supporting 150 users via a terminal based interface. The issue is currently that the server has a single backup taken ...
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844 views

Create a SQL Server full backup without affecting maintenance plan?

We use a centralized SQL Server 2005 server for web development. The server has a maintenance plan to take a full backup each Sunday and incremental backups on all other nights. All databases use ...