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Questions tagged [snapshot]

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

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Create Azure VM from Snapshot if Disk Deleted Possible?

We deleted a VM as it was no longer needed. Prior to deleting we took a snapshot. The VM hard drive (OS) disk still exists but we're looking to clean up unused resources. If I delete this disk, can I ...
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rsync --link-dest. Time to 'building file list" incrementing

I've been running rsync as a cygwin task on Windows Server 2008 for about two months now. I'm using the --link-dest option to do a daily 'snapshot' of the contents of a server containing about 10TB ...
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34 views

Q: Unable to create 'live' snapshot of running KVM using virsh

I was kindly directed to here, Serverfault from Stackoverflow to pose my question. I'm running the following command on a RHEL7 hypervisor to create a live backup (disc image) of a running kvm, ...
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1answer
966 views

ZFS test rollback doesn't work as expected

I am confused about how ZFS snapshots and rollback are supposed to work. I have a zpool containing a couple zvols (each made from partitions of a mirrorvdev). I make a snapshot like this: ~$ sudo zfs ...
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50 views

AWS AMI from Snapshot - Unable to Create Instance of Same Type

I've scoured Google and the AWS developer forums pretty thoroughly (I think) and can't seem to find an answer. I'm snapshotting EBS volumes with boto3 daily for DR purposes. Some of the instances ...
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18 views

Evidences for VMWare Snapshot restoration from Guest OS

I have few VMWare servers managed by an external company and I suspect a snapshot restoration happened on one of my server (MS Windows 2008 Server). I suspected this because there was a windows ...
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3answers
37 views

Clone AWS instance and volume and apply new network settings

I have a machine instance and attached volume that I would like to clone, but apply new network settings to it. What is the best process for doing this, which will leave the original instance ...
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1answer
27 views

How to save scheduled XenServer VM backups to external drive

Server: XenServer 7.1 Management: XenCenter Goal: Have a Scheduled Snapshot saved to an external drive connected to the server via USB Issue: The server recognizes the external drive as a removable ...
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21 views

How do I resolve a Xen VM import that never completes but doesn't time out or print any errors?

I have several XenServers which backup their VMs to NFS storage by taking a snapshot and then exporting it to an .ova file. This is done using the script from here: https://tecadmin.net/backup-running-...
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1answer
47 views

Is using snapshots in AWS a reliable way to back up data?

I am looking at backup options within AWS and while instance snapshots are the obvious way to go I am have some concerns about using that method. I'd like to take daily snapshots of each instance ...
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39 views

Is there a way to make VM snapshots in PROXMOX LVM storage

Acording to official docs https://pve.proxmox.com/wiki/Storage:_LVM the LVM storage option does not support VM snapshots. You need to setup Thin LVM for snapshots to work. My question is if there's a ...
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1answer
45 views

Replacing root filesystem with EC2 snapshot

This documentation describes "Restoring an Amazon EBS Volume from a Snapshot". Having done that this documentation explains "Making an Amazon EBS Volume Available for Use on Linux" What I'd now ...
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1answer
32 views

network configuration after restoring a snapshot on newly created VPS instance

I have a website up and running on a VPS instance from Vultr running Ubuntu 18.04LTS, everything is fine. I wanted to try out a snapshot of the instance in a restore session just in case something bad ...
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1answer
92 views

Mongodb on AWS EC2 backup strategy

I'm running Mongodb on AWS EC2 instance. Data/log/and journal are stored in a separate volume, formatted as xfs. Currently we are stopping the mongodb instance to take a snapshot, but reading this: ...
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1answer
21 views

Why is my Syno NAS creating a snapshot each hour instead of one per day?

[Background information] I am running a Synology DS916+ consisting of 4 disks forming 2 storage pools. Storage pool 1 is made up of 3 disks holding all my data on a SHR (Syno Hybrid RAID). Storage ...
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103 views

I have configured Samba file server on Centos 7 but Previous version shadow copy not available for windows 7 client

I have configured Samba file server on Centos 7 and configured vfs objects = shadow_copy2 using LVM snapshot so that windows 7 client can access Previous version shadow copy same like MS windows.But I ...
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26 views

I can not snap a pair of LVMs associated with a KVM

I use a snaphost for backup my machines based on KVM But on one server I can`t make snapshots of one machine Get a error, I dont how to repair the problem. Using default stripesize 64.00 KiB. ...
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133 views

Google Cloud Platform: Physical snapshot storage location

This document says: Compute Engine stores multiple copies of each snapshot redundantly across multiple locations with automatic checksums to ensure the integrity of your data. I'm wondering about ...
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223 views

Hyper-V 2016 not merging on checkpoint delete, “Cannot locate parent virtual hard disk”

This is semi-consistent behavior. I set a checkpoint on my guest VMs when I update an application, and run it for a month or so until the next one is due. At least half the time, when I right-click ...
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1answer
234 views

RDS snapshot: how long does I/O suspension occur?

As we're relying on RDS Postgresql manual backup for our backup strategy, we encountered the issue with the possible downtime of the RDS instance (single AZ) during snapshot creation. According to AWS:...
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1answer
114 views

Google Cloud VM Windows instance wallpaper Snapshot Time:

I am managing two VM instances in Google Cloud and have a question about the Snapshot Time: field. Where is this coming from and does it mean that an actual snapshot was taken? In both cases 'gcloud ...
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68 views

AWS KMS keys when copying snapshots

Background I've recently opened an Amazon Web Services account to run a small-business webserver. I launched an EC2 instance with an unencrypted volume, and now I want to encrypt that volume. A ...
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2answers
249 views

How to know the snapshot completion time in AWS EC2?

I started a snapshot of 1TB volume that carries 750GB of data in AWS EC2 without shutting the instance down. It gave completed status, progress 100% when I noted after 10hrs. I can see the started ...
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1answer
51 views

virsh error: domain is already quiesced

My VM backup script fails while creating the snapshot. virsh snapshot-create-as --domain machine_1 snap --diskspec vda,file=/srv/test/test-snap.qcow2 --disk-only --atomic --no-metadata --quiesce ...
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54 views

hyper-V - Production checkpoint doesn't work until I restart the service on the VM

My problem: Production snapshot on my VM doesn't work until I restart the Hyper-V volume shadow copy service (on the VM). Which is a problem because each time I apply a snapshot I should restart the ...
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36 views

Error running Zoopkeeper Snapshot Command

Navigated to the zookeeper folder Ran this command (I'm on Windows server) java -cp zookeeper-3.4.8.jar:lib/log4j-1.2.16.jar:lib/slf4j-log4j12-1.6.1.jar:lib/slf4j-api-1.6.1.jar org.apache.zookeeper....
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112 views

Snapshot google cloud

When I run this command, the first time it makes a full disk snapshot: gcloud compute disks snapshot mydisk1 –-zone=asia-east1-a but the next time it only save the modified data. Is it possible to ...
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26 views

LVM snapshots which are not marked as snapshot anymore

I'm running some VM backups using a script that I wrote on my Centos 6 and 7-based hypervisors. The virtual disks are stored as LVM volumes on shared ISCSI storage. The script performs basically these ...
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39 views

qemu error while restoring snapshot

I made a snapshot of a Windows 10 VM and now if I try to restore it with virt-manager or with this command virsh snapshot-revert win10 "bef kg" I get this error: error: internal error: qemu ...
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1answer
234 views

LVM over RAID1 in XFS - is this a bad idea?

I came across a comment in this question which states that LVM over RAID or RAID over LVM is evil, and many people have up-voted the comment, so there must be some truth to it (I guess)! However, I ...
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2answers
51 views

How do I make a VMWare VM not be running on a snapshot?

I'm not sure I understand snapshots. I took a snapshot of a VM on ESXi. The Snapshot manager in VSPhere show the tree and at the bottom of that three is "You are here." It is underneath the ...
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151 views

How can I see how long an EBS snapshot took?

I'm trying to do some planning and have been experimenting with EBS snapshots for data backups. I want to see how long a snapshot took of a 50G volume, but I only see the start time, not the ...
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232 views

How can I restore an LVM snapshot without deleting the snapshot?

Steps to reproduce create a snapshot of a volume using lvm lvcreate -L 200GB -s -n snapshotname /dev/hostname-vg/root make changes to the filesystem restore the filesystem to the state it was in ...
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1answer
315 views

Are EBS snapshots deleted when the volume itself is deleted?

I have a client who are 'upgrading' their OS but tearing down the entire instance, creating a new one based on the updated AMI and creating the setup including EBS volume. When they delete the EBS ...
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1answer
162 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 ...
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198 views

Libvirt snapshots - How to ignore a physical drive?

I have a libvirt guest that has 2 drives: QCOW2 image RAW access to a whole physical drive. From time to time I wish to take a snapshot of the QCOW2 image so I could easily revert if I chose to, ...
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286 views

How can I know who created this VMware snapshot?

Someone made a snapshot of a production VM (vSphere 5.1) a month ago. The snapshot is still there. Apparently this person doesn't know that snapshots are not backup operation... I would like to find ...
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497 views

Can a big VMware snapshot be deleted this way?

I heard that if you have a big snapshot to delete (keep the modifications) you should take a small snapshot again and then "delete all" so that the consolidation takes place in background. Is it a ...
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2answers
260 views

AWS EBS snapshot. Does FileSystem consistency REALLY required?

I've been reading a lot about aws ebs and a lot of people seems to encourage people to freeze the filesystem during the snapshot. However, this piece of amazon documentation beg to differ : While ...
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2answers
119 views

Backup all from my E-commerce (Magento)

I have a VM instances located on Google Cloud Compute Engine custom (6 vCPUs, 32 GB memory)Intel Sandy Bridge which use Debian. It's an E-commerce on Magento 1.9.3 If I want to create a full backup of ...
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1answer
433 views

How does “Add Snapshot” work in the Azure Pricing Calculator?

In the Azure Pricing Calculator, under Managed OS Disks, there is a switch you can flip to "Add Snapshot", which lets you choose the size of the snapshot. This doesn't make sense to me, because I ...
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1answer
44 views

How to backup all the information from my E-commerce located in Google Cloud?

I'm new using Google Cloud but we have an E-commerce (Magento) located in one of our VM instances. I was reading about Snapshots. My question is Snapshots create a backup of all data from my store? ...
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2answers
140 views

ESXI is there an alternative to snapshot removal?

I am running ESXI 5.5 and I am trying to remove the snapshots from our office server VM (SBS 2011). Yesterday afternoon I started the process and this morning it seems to be only at 5%, which means it ...
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1answer
110 views

Why is dmsetup failing when I try to create a snapshot?

I would like to create a COW device for an existing block device using dmsetup. The block device is: # blockdev --getsz /dev/loop0 3534848 I am trying to use a 256M ramdisk as the backing store: # ...
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160 views

Creating automatic snapper snapshots

I'm using OpenSuse Leap 42.2. My root filesystem is managed by btrfs. Further informations: 1 $ sudo btrfs subvolume list / ID 257 gen 419408 top level 5 path @ ID 258 gen 818236 top level 257 path @...
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221 views

ZFS snapshot zd0 block device

I'm trying to make use of the ability of zfs snapshots. To explain a little how it's configured on my end: zpool create vol0 mirror /dev/sda /dev/sdb zfs create -o volblocksize=128K -V 15T vol0/...
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0answers
107 views

ZFS Snapshots (Missing Incremental)

Assume two Zpools on Solaris 11.3. Pool A and Pool B. Pool A contains PoolA/FileSystem1@Snap3 Pool B contains PoolB/FileSystem1@Snap1 and PoolB/FileSystem1@Snap2 Is there a way to update Pool B ...
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1answer
99 views

Autofs mounted /home/<user> not included in backup [closed]

I have autofs mounted shared /home directories setup on server and it is working perfectly, when i need dir, it is mounted automaticly, when i dont, it is not present. But now i am working on backup ...
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428 views

VMware Snapshot failing

We are using VMware ESXi 6.0.0 and are having trouble snapshotting some of the VMs with more than one disk in different datastores. The error we are seeing in the VM logs is as follows: 2017-08-...
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1answer
40 views

restoring guest os from vmware snapshot

I would like to know if: there is a snapshot taken of the guest OS C drive (Windows) using vmware snapshots and if the OS is no longer booting at some stage, would restoring to the previous snapshot (...