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

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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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windows server creation from amazon ec2 snapshot

I created a windows 2003 instance on Amazon EC2, I created the snapshot for backup. Now I am creating the volume from that snapshot and try to attach to a new windows 2003 server. I am able to up ...
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2answers
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Recovering a Hyper-V vhd from a snapshot

I'm going to leave out tons of related info that I hope isn't relevant to keep this lean - feel free to ask for detail. My host is a Windows Server 2008 Standard SP2 (not R2). Last February we had ...
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74 views

Merge Publication Data Partition Snapshot generation

I have a merge publication in SQL 2008 R2 with data partitions and I am wondering when I should generate the snapshots for the data partitions. I get an error sometimes when bringing a new subscribe ...
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206 views

Replication or?

Recently, we have been hammered by Google Bots and all kinds of other bots( 60% of the website traffic that we experience on an average are from Bots. We are trying to segment out the Google Bot ...
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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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Backup solution for 10TB using ubuntu

I am setting up a backup server with roughly ten 2TB hard drives raided. The purpose of this machine is simply to back up about 3-10TB of data from another server. What is the best way to achieve ...
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5answers
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Handling XenServer snapshotting and cloning with ZFS SAN

I'm planning on setting up a XenServer machine that uses a NexentaOS/ZFS-based SAN for storage of the Virtual Disk Images (VDIs) through iSCSI. I know I could just setup a big Storage Repository (SR) ...
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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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1answer
596 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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725 views

Using LVM Snapshot To Backup Database Servers

Could we use LVM snapshots to backup database servers? Or we can only use it for file system backups?
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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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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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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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4answers
3k views

where are kvm-snapshots stored?

I run several VM's on KVM/ubuntu, which all get started with the -snapshot parameter (the VM's only compute several things which can be destroyed after reboot). Out of the docs I've read, the changes ...
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758 views

Automate Amazon EBS Snapshot creation?

Once in a while I would go to http://aws.amazon.com/console and manually right click my EBS volume and create a snapshot. This is kind of tedious and I would forget sometimes. Is it possible to ...
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291 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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189 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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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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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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1answer
361 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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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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130 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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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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372 views

Loading a snapshot on a live instance to replace the root volume without terminating or stopping

I have a small EC2 instance running Ubuntu 9.10. I cannot stop or terminate it because it's a production server and we cannot lose our IP. I have an Amazon EBS volume that is our root drive and I ...
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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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248 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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372 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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798 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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318 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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777 views

Automatic snapshots won't run on BackupExec CPS 2010

I am running Symantec BackupExec CPS 2010 on Server 2008 R2. I have everything set up ok, the backups are running and I can perform restores. I also have configured the snapshots, but they do not ...
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457 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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416 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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How to keep or drop LVM snapshot?

I have made an LVM snapshop by lvcreate --name snap --size 10G -s /dev/vg00/vm What command should I write if I want to drop the snapshot, and not keep the changes that have happened since the ...
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622 views

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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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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183 views

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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141 views

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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702 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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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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538 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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1answer
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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Linux LVM snapshot commit or revert?

I'm about to perform an experimental upgrade on my CentOS 5 server. If the upgrade fails, I want to be able to back out the changes to the filesystem. This scenario seems similar to the example in ...
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871 views

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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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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Possible to make a script to simulate a VM Snapshot with pass-through disk?

I have Windows Server 2008 R2 with Hyper-V and one VM with a Pass-Through disk. Naturally I can't take a snapshot (it's a limitation of Hyper-V) but can I use a scrip to the unmount disk, take a ...
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1answer
426 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 ...