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Questions tagged [snapshot]

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0
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0answers
32 views

Monitor file system for processes accessing files Windows

I have a Windows Server 2012 R2 running Veritas Enterprise Vault (EV). For backups of index data/metadata we put EV into backup mode and take a snapshot of the disks using the underlying SAN storage, ...
1
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0answers
10 views

Shadow Copies are properly created, but in Explorer I can’t access to “previous versions” (reported as not available)

Windows 7 Ultimate 64 bit: I always utilized the shadow copies, not only to restore the OS to a previous version: I mainly use the shadow copies to restore single files, by using the "Previous ...
0
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3answers
745 views

What is the purpose of snapshots in virtualisation software?

I've recently started using virtualisation software more often, specifically VirtualBox, and the idea of snapshots confuses me. I understand that they give the user the ability to revert a VM to a ...
1
vote
2answers
45 views

Running du on timeshift folders give different results

My goal is to find which files/folders take the most space in a snapshot from the backup tool timeshift but, when using du it yields different results: # du -hs * 18G 2018-09-21_16-14-57 910M ...
0
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1answer
39 views

How to perform application-consistent backup of Git repo

Imagine I have a bare Git repository on my own hosted server that is used by multiple folks for cloning, pushing, and pulling. What commands would be necessary to get such a repository into a state ...
1
vote
1answer
21 views

virtualbox snapshot - is it a safe back-up if I want to over-write (dd to) sda1?

I want to do some testing useing chroot to overwrite sda1 (my main partition) in a ubuntu VM. Is taking a virtualbox snapshot a safe way to create a backup? i.e. in the VM I want to create a chroot ...
1
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1answer
96 views

Btrfs copy snapshot with rsync

So I have been searching for this up and down, but must be doing something fundamentally wrong. What I want to do: I have configured my NAS to make snapshots of my home folder, file system is btrfs. ...
0
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1answer
64 views

Suggestion on how to consolidate VMWare VM snapshots

I was given a copy of a VM with many snapshots. The size of the folder that contains the VM is about 200GB and there is about 371 snapshots in it. ls | grep [.]vmdk | wc 372 372 14513 I ...
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0answers
214 views

How to convert Virtualbox VM into KVM VM, with latest snapshot included?

I have been trying to change my existing Virtualbox VMs (.vdi) into .qcow2 format and run it on KVM. I have successfully done the conversion (.vdi > .qcow2) but, the converted VM is not in the same ...
0
votes
1answer
101 views

Taking a snapshot of a demo environment

I am using a 27" Late 2015 iMac. I have a set of applications and websites that I use as part of a demo. Currently, I have to manually load everything at the beginning of the demo and make a set of ...
0
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1answer
675 views

For automating a full backup of a VM, is exporting as an appliance better than cloning the VM?

I recently had a mishap on my VM, where for somereason the settings of my BridgeNetwork got changed randomly. I had to spend quite a bit of time to figure out the root cause. Rightnow, I manually copy ...
0
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1answer
120 views

Hyper-V snapshot/checkpoint behavior with physical hard disk

What is the behavior of the snapshot/checkpoint feature in Hyper-V when there are physical hard disks attached to the virtual machine? I have a virtual machine with four physical disks passed through ...
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0answers
46 views

My Win10 Hyper-V on Win10 host, asks me to revert after every reboot

I have configured a Win10 (x64 Pro) VM on a Win10 (x64 Pro) host, because I wanted to keep some things semi-isolated. Both machines have all updates installed. I think the only snapshot I have taken ...
0
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2answers
220 views

Test if btrfs subvolume exists

I have a problem in a bash procedure, which should port my old rsync disk backup (and archive) to my future btrfs snapshot backup. I want to use the line: # btrfs subvolume snapshot /targetdir/@...
0
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0answers
36 views

How to image a GCE instance with multiple persistent disks

I'm looking for a way to snapshot/image a Google Cloud instance that uses multiple disks. From what I've found so far, this does not seem to be supported, as I haven't seen a way to create an image ...
2
votes
1answer
551 views

How to access a ZFS zvol SNAPSHOT block device?

I have an Ubuntu 16.04 box running ZFS. I'm using the zfs-auto-snapshot script to create regular snapshots. Included in my ZFS setup is a ZVOL block device. I want to access (read-only) a ...
0
votes
1answer
146 views

Terminal fails to show the local snapshots on my computer

I typed sudo tmutil listlocalsnapshots / in terminal and entered the password. However, nothing happened. I suppose terminal to return all local snapshots on my computer, but it only returns xxxs-...
0
votes
1answer
118 views

VirtualBox vdi not growing over 32 GB, NS_ERROR_CALL_FAILED when trying to delete snapshot

I am running VirtualBox 5.2.0 on Ubuntu 16.04 64-bit. The quest system is Win 10 64-bit. At some point guest went jammed because vdi disk of dynamic size 100GB refused to grow over 32GB. I have ...
1
vote
2answers
392 views

Can I export appliance with all the snapshots in VirtualBox (Version 5.1.28)?

I use Oracle VM VirtualBox Version 5.1.28 r117968 (Qt5.6.2) . I have two virtual machines (Windows 7 64bit and Ubuntu 14.04.5 LTS) with 8 snapshots in Windows and 6 snapshots in Ubuntu. I want to have ...
3
votes
1answer
157 views

Is there a ZFS-aware diff?

I often make snapshots of a ZFS volume (containing AOSP) make some changes (often extracting ZIP files over then top, or running scripts) and then run diff to see what has changed. This is really ...
1
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0answers
55 views

VMWare warns about consolidation after cancelling snapshot creation

I'm using VMWare vSphere client on Windows 10 to connect to my company DC (OVH). I wanted to create a snapshot of a VM (Debian) before updating the packages. So I tried to create a snapshot of a ...
2
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1answer
156 views

How much data is transferred in case of zfs send with incremental snapshots?

My scenario is two servers in a hot-standby setup using ZFS to host VMs and using ZFS incremental snapshots for replication of changes to the VMs from one server to the other using something like zrep ...
1
vote
1answer
149 views

Btrfs automatically bitrot correction with snapshots?

I want to set up a notebook (debian) with 1 SSD and 1 HDD each with Luks and Btrfs on it. Because the SSD and the HDD doesn't have the same speed, i don't want to use Btrfs' Raid-1 on it, but i also ...
1
vote
1answer
65 views

Chrome extension to save all downloaded media for the current page

I know of winhttrack but it doesn't go well with javascript. Is there a Google extension that will save all the ressources that have been downloaded since you're visiting a site in a tab ? (all the ...
1
vote
1answer
412 views

How do I set up a bootable incremental ZFS-on-root backup on a seperate drive?

I installed antergos Linux with ZFS-on-root. The system is up and running and I’m glad because that alone is a success for me. Now apparently ZFS is mainly for NAS, RAID, Server configs etc. (and I ...
0
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1answer
376 views

How to setup a Ubuntu server 16.04 host machine, for running several virtual machines

i need some help with setting up my host machine for running virtual servers on ubuntu server. I have a server with 4x2TB SAS which are in raid6 using raid adapter (dell perc h730p). The idea is to ...
1
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0answers
548 views

How do I revert to latest external snapshot in KVM?

I have created an external snapshot with KVM using virsh snapshot-create-as domain --name snap1 --disk-only Then, I started the domain with “virsh start domain”. I know that reverting to external ...
1
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0answers
213 views

Does ZFS support something like “nodatacow” of BTRFS?

This is a follow up to a former question about BTRFS and in the end I want to have a file system supporting at least the manual creation of snapshots for backup and test purposes. The data I'm hosting ...
0
votes
1answer
681 views

How to get NTFS like snapshot behaviour in BTRFS?

I would like to use BTRFS to host VMs in VirtualBox to be able to use Snapshots without LVM or such. In theory I don't need CoW behaviour all the time because of performance reasons and using ...
1
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0answers
34 views

VM very slow after snapshot recover

We have here a Citrix XenCenter with few Virtualized machines. So last week we had to recover a VM from an old snapshot (the current one got lost because of a miss configuration in file permissions). ...
8
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2answers
8k views

Export a VM with the snapshots?

I have a machine with snapshots at different key points in the configuration. Now I need to back up this VM, with its snapshots, to another machine. I tried the "Export" function, but the .ova file ...
1
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1answer
9k views

Taking a VmWare Player snapshot

Just wondering, can you take a snapshot from a free VMWare Player Virtual Machine (VM)? Or is it just for the commercial versions
0
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1answer
107 views

Why does the default UI menu bar for “Machine->Save State” is unchecked in VirtualBox?

You get to the option of changing the VM's menu bar (aka File menu) UI by right clicking on a VM -> Settings... -> User Interface Is there any special reason for that? Is there a reason not to save ...
0
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2answers
246 views

Is quiescing a VM during a backup necessary for a consistent snapshot of the filesystem?

Do I need to 'quiesce' a running VM to get a consistent snapshot of the disk at a point in time? I do not care if there are unwritten buffers or if a running application is consistent with the disk. ...
0
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0answers
31 views

How can you minimise the time to copy development Hyper-V VM's?

How can you minimise the time to copy development Hyper-V VM's? I have a number of Hyper-V VM's which I want to regularly move between two machines ... one in work, the other at home I can shut down ...
4
votes
2answers
843 views

Using MySQL and LxD over Btrfs

I have a Ubuntu 16.04 workstation, with an ext4 filesystem. When playing with LxD, I would like to have a lightening-fast snapshoting ability (since my images would usually be big). This ability, in ...
0
votes
1answer
39 views

Deleted AutoProtect snapshots and can't boot VM's

I've had 3 VM's running AutoProtect fine for several months but decided it was pointless and wanted to disable it. I also simultaneously wanted to enable Persistent Independent disk access. I wasn't ...
0
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0answers
81 views

How do I clone a running VMware Workstation?

I have a running virtual machine with a task that cannot be turned off. I tried to snapshot it but unfortunately, it won't allow me to use a snapshot that is powered on to create a new cloning machine....
0
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0answers
75 views

Using vlc to batch generate snapshots say every 2-3 minutes or os?

Is there a way to batch generate snapshots every 2-3 minutes or so in Debian. I have a video of approximately 15 minutes and while I could use hotekey 's' to manually generate snapshots . Using vlc 2....
5
votes
3answers
6k views

Can I backup a running virtualbox Virtual machine?

I am currently running a time consuming python script on a virtual machine(It has been running for ~95 hours at the moment). I have no idea how long it will take to complete and am running it on a VM ...
1
vote
1answer
948 views

How to create a snapshot of current ubuntu installed programs, so that I can copy it to another fresh installation of ubuntu?

I have some installed programs on Ubuntu on my remote server (which I have root access to it). Now I need to install a fresh Ubuntu on some other machine/server, and I don't want to go through ...
1
vote
1answer
187 views

How to make (and restore) an application snapshot in runtime?

I'm trying to make a snapshot of a running application, in runtime, and restore it afterwards. By 'snapshot' I mean complete state of my application - I suppose that's just memory pages and CPU ...
0
votes
1answer
904 views

Deleting Snapshots in VirtualBox

I created a snapshot, in VirtualBox (VBox), and then found it in my HDD. So I deleted it in the folder structure. I saw it was still there when I opened VBox, so tried to remove it but got an error. ...
0
votes
1answer
950 views

BTRFS - Revert to snapshot

I have disk with btrfs file system which is mounted on root directory. $ sudo btrfs subvol show /media/qkiz/Corsair/ /media/qkiz/Corsair is btrfs root On this this root is a snapshot. $ sudo btrfs ...
0
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1answer
57 views

Error occurrs while configuring Snapper on Btrfs file system

I am getting an error while trying to configure snapper on Fedora 23. My root partition is btrfs, and I have installed the snapper package. The error is occurring when I initially try to create the ...
5
votes
2answers
11k views

How to save the state of a Ubuntu install? (get a snapshot)

I don't know if the terminology as in "snapshot" is correct for this, if not, please, feel free to correct me. Is there a way that I can, like "save" the state of my linux install, like an image, so ...
0
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0answers
118 views

Take snapshot when powering off

I am using my banking software in a VM and it's critical that I take a snapshot when shutting down the virtual PC. This worked fine in VMWare 10, but in VMWare 12 I get the warning Value "...
2
votes
0answers
2k views

comparing between two VM snapshots?

I already know some programs can compare between two snapshots but they only work on my real machine but I want to know how to know the difference between two virtual machine snapshots Example : -&...
0
votes
1answer
437 views

Cloning an LVM2 thin pool with all the snapshots

Need to clone a 400gb pool onto another machine. Will this work? First I collect the data about the existing pool: [root@oktest-prod-db-2 ~]# lvdisplay --units B vg_oktestdb2/pool --- Logical ...
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0answers
82 views

Delete VirtualBox snapshot's running state

I have several VirtualBox snapshots depending in an tree-like hierarchy. Some of them however are saved running. How can I drop the running state and just keep the harddisk state of snapshots inside ...