Questions tagged [snapshot]

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

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Accidentally executed: sudo rm -r /* [duplicate]

This morning while I was doing a bit of work on my production server, when I accidentally executed the following command: sudo rm -r /* Sadly, the server no longer accept my public key or password ...
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Loop the status Result using PowerShell

I have written a script in PowerShell which creates aws ebs snapshot , its working fine without an issue , except i am not able get the Progress status at regular interval to proceed with next step in ...
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Openstack- unable to login from snapshot instance

I took a snapshot from one instance in an openstack and put the snapshot as image in another openstack deployment, then tried to run it on a flavor that has greater hardware than required. Everything ...
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291 views

Google Cloud disk multiple snapshot schedules

Is it possible to have multiple snapshot schedules assigned to a single disk in Google Cloud Compute Engine? My goal is to have a daily snapshot schedule with a certain retention policy and a weekly ...
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HyperV Old Snapshots with No Reference - Can I Delete Them?

We've became aware recently of an issue with Hyper-V and some old snapshots that I'm assuming have been caused by failed Veeam backups (and the checkpoints not being deleted). It's a HyperV Failover ...
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Noop convert qcow2 image but keeps internal snapshots

I have a qcow2 image. The image size is 200 GB, but the actual use is only 30 GB. I'm using qemu-img convert -O qcow2 source.qcow2 shrunk.qcow2 to removes sparse space and the images shrinks correctly ...
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86 views

K8S volume snapshots - any way to export and import snapshots manually?

I have snapshotting enabled in my k8s cluster, and am able to snapshot my volumes - yet I have not found documentation on how to actually store those snapshots outside the cluster without using a ...
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53 views

Snapshot schedule is not attaching boot disk

I created a VM and snapshot schedule with terraform modules on GCP. The code is attaching the additional disks but not the boot disk. Any idea what is needed to be changed to the below code to ...
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Will a Solaris server tolerate a ZFS pool from its future?

My experience with ZFS has generally been that it just works, so I expect the answer will be, it’s not a problem — but I have a data pool which will ruin my January if it fubars, so I want to double-...
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XenServer: Backing up VMs to NAS

Currently we are using XSBackPro 2.0 to backup our XenServer VMs to our NAS. Problem is XSBackPro 2.0 and 3.0 have been discontinued and the support has been halted. We are looking for alternatives to ...
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266 views

zfs cannot create snapshot, out of space

I have a disk with these layers: sata disk, luks, zpool, ext4 The ext4 fs was created with these commands: cryptsetup -v luksFormat /dev/sdb cryptsetup luksOpen /dev/sda store02 zpool create zstore02 /...
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Is there a way to re-build a physical machine (into golden image) without dedicated hardware?

I have a small office (total of 6 computers) for translation, Due to the fact that many of the documents are private and personal and the security risk of opening word documents, pdf and so, I would ...
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312 views

CentOS, revert back to a clean state (by backup or snapshot) without physically going to the server [closed]

I am running CentOS 8 and I would like to rollback to a point in time (backup or snapshot), but without having to boot from USB. Many tools permit this on Windows (e.g. Macrium Reflect) and I would ...
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360 views

zfs send multiple snapshots

I want send several zfs snapshots to another pool. Source pool "rpool", target pool "dpool" rpool/kvm1380_img 88,6G 1,48T 77,6G - rpool/...
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25 views

How long has a snapshot been running?

Assume I made a snapshot of a certain VM one week ago. Today I revert to that snapshot, I think this means the delta.vmdk gets deleted (e.g. everything after the snapshot is lost). I think this also ...
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ZFS data lost after a rollback happening on reboot

Edit1: Unlike what I originally thought when creating this question, it seems that the problem was NOT directly caused by the unplanned power-cycle, but by a mistake I might have done with beadm in ...
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Delete snapshots in OpenStack (backend - NFS)

I have a problem. When I use NFS backand in OpenStack, i have a problem whith hard reboot instance after create and delete snapshot. Create snapshot. Create qcow2 file in NFS directory (volume-<...
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ZFS - Deleting Redundant Snapshots

I have written a cron job to automatically create snapshots of ZFS dataset on an hourly basis for critical files that benefit from active tracking. The drawback of this is that these hourly snapshots ...
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Dead Citrix XenServer with LVM: How to get the VHDs off the system?

My company recently delegated the task of recovering a fairly old (~2015) Citrix Xenserver to me. The machine had a major electrical fault which caused a hard drive failure and a collapse of the RAID. ...
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velero cannot backup anything on Vsphere 6.7U3

I've Velero 1.5.2 installed on Kubespray Kubernetes 1.18 on Vsphere 6.7 u3. This is my installation: velero install \ --secret-file ./credentials-velero \ --image velero/velero:v1.5.2 \ --provider ...
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ESXi 6.0 Consolidation

I had a snapshot that had eaten the free space in a datastore. I deleted the snapshot and now the snapshot manager is empty but I see delta disks and disks such as -0002.vmdk,... -0005.vmdk etc are ...
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How to configure VMWare cloned images to get unique IP addresses?

I am configuring an internal build system using Teamcity with VMWare vSphere. Once configured, the build server is supposed to start build agent VMs using vSphere API. I've got to a point where ...
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Why is the AWS Lightsail snapshot missing a document in the MongoDB database?

I run a NodeJS web application on AWS with snapshots at 8am GMT+1. Two days ago at 11pm, one user submitted information that became a document in the MongoDB database. That document appears in ...
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KVM/QEMU - best practice for creating snapshots of your guests regarding disk space on the hypervisor

I have several KVM/QEMU guests with each having one hard disk based on the qcow2 format. As I understand, I have two option for creating snapshots. First is to create a snapshot inside the qcow2 image:...
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How to extend the Ubuntu VPS storage via command line (Without GParted)

I loaded the VPS sever with 50GB snapshot VM image, so now the remaining size of the actual storage of this server is not allocated correctly which is remaining 110GB. The total size of the VPS is ...
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Windows NTFS Data Deduplication and Snapshot Backups

We have a file server (fs00) on Google Cloud Platform (GCP): Running Windows Server 2019 (with Desktop Experience installed). One OS / System disk (250GB SSD) An independent data disk (5TB standard ...
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34 views

Network share with multiple users and snapshots

I want to make a network share with read/write and it will be accessed by multiple computers. Every time a new computer connects to it, they should find it in an initial state. Every change made on ...
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227 views

apt-get is stuck with mysql after creating a vm from snapshot in Google cloud

I'm using Google cloud and I have a vm (Ubuntu 18.04) that is working fine. The apt-get command works totally fine and mysql service is running well. Let's call it vm-1 I needed to create another a ...
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271 views

Unclear why crash consistent backups are unsafe for MySQL

My understanding of the InnoDB engine is that the database is always recoverable after a crash, due to the internal architecture of the engine itself. That is, InnoDB can correctly recover from a ...
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216 views

Is it possible to configure sonatype nexus 3 as repository mirror

We need to use mirroring for different repository types. We need to provide: docker yum pip gem So we consider to use sonatype nexus 3 (oss) as repository manager. Now we try to setup mirroring but ...
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133 views

Can we resize the EBS volume when snapshot is in progress?

I've an ec2 instance with root volume and additional volume attached, additional volume is 92% used. I took a ebs snapshot , but looks like its very slow. Can I go ahead and increase the volume size ...
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425 views

How does deleting the oldest ZFS snapshot not break the flow of data?

I'm not new to ZFS. I've been using it a couple of years but I've only just started making snapshots and I've created a cronjob and script to take a daily snapshot of a few of my datasets, which all ...
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gcloud snapshot created in region, not zone, when executed from cron job

Trying to fire off a gcloud snapshot from a cron job on a ubuntu compute-engine. When executed from an ssh session: gcloud compute disks snapshot disk-1 --zone=us-west1-b --snapshot-names=${snapshot-...
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299 views

gcloud.compute root cron job snapshot “Insufficient Permission: Request had insufficient authentication scope”

I've set up a cron job on a google compute ubuntu system to take a snapshot. When run from an ssh session, the cron script creates a snapshot fine. However, when run as root from a cron job, the "...
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How do I specify which drive mirrors to which when raid-1 mirroring a linear lvm volume made of drives of different sizes?

I want to use mirroring together with LVM snapshots to have both physical redundancy and the ability to rollback problematic changes. I have and idea about how to arrange this with the disks I have, ...
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AWS snapshot automation

Sorry bit new here. I had to take over managing aws for a small company with about 10 ec2 instances. it looks like the instances are being backed up via snapshots everyday. Currently there are over ...
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58 views

Nginx not starting exists with error: bind() to 0.0.0.0:80 failed

Recently, I created a Digital Ocean instance and set it up with a basic LEMP stack. I also connected it to a domain with this nginx configuration: server { listen 80; server_name example.com ...
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75 views

Gcloud compute snapshot of re-created disk is not complete?

I recently recreated a disk / vm image in google compute from a previous set of snapshots. Those snapshots are currently dated and sized as follows: - May 20 60 MB - May 21 372 MB - May 22 ...
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Why ZFS snapshot reports zero size?

I have a Centos7 system with zfs pool that I took a snapshot with sudo zfs snapshot -r data-pool/Samba@backup_r. After taking the snapshot I copied few gigabytes of files from my Windows pc to that ...
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100 views

gcloud compute engine - multiple full backups / snapshots / machine images?

On a gcloud debian vm instance, I would like to create full backups and rotate them, e.g. one per day of week one per week one per month one per year That is, each daily would get over-...
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46 views

Snapshots could fail if VM are running delta files?

On VMware 6.5, VMs are running on CTK Delta files, could this causes inconsistency on storage level snapshot?
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434 views

AWS: difference between instance snapshot and volume snapshot

What is the difference between an AWS instance snapshot and volume snapshot? I am implementing "Lifecycle Manager", and my goal is to create a system that will allow for fast recovery of a server in ...
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What would you call this “RAID” ? RAID 1+6? [closed]

I have Snapraid running as snapshot RAID6 (2-parity disks) for my 9 disk array which calculates new parity once a day. Then I have Drivepool duplicating certain very important folders on the array to ...
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93 views

Google cloud VM and scheduled snapshots on attached persistent disk

in the case of scheduled shapshots on a persistent ssd disk mounted on a VM, I read in the doc that the backup must not be set here /etc/fstab to ensure that the disk mounts on its own when the VM is ...
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155 views

Why would deleting an incremental snapshot increase the space usage & cost? [closed]

Google Cloud Platform From the Google Cloud docs: https://cloud.google.com/compute/disks-image-pricing#persistent_disk_snapshots When you delete a complete or incremental snapshot, some of its ...
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286 views

AWS Fast snapshot restore : cost and restore time

I'm confused about fast snapshot restore... Pricing is at around $0.75 per DSU hour which, assuming you pay for every hour the snapshot exists, is $6000+ a year so I can't have it on all the time. Or,...
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397 views

Bulk delete ec2 snapshots from Jenkins

Use case: Export list of snapshots in txt file (old_snapshots.txt) to S3 bucket. From Jenkins, use aws cp command copy file to Jenkins /tmp/directory --dry-run did not show any error However, when ...
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262 views

Samba Issue time with shadow copy

I was wondering if someone else has any experience with this before? Currently Version: 6.1 zentyal and Samba version 4.7.6-Ubuntu The time in the shadow copy does not show correct on the windows ...
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348 views

Restoring logical volume from GCP/GCE snapshot

I recently carried out a recovery test on a Google Compute Engine VM with a Centos 7 OS. The VM has five partitioned disks managed by LVM. The server has been around for a while so there are about ten ...
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lvconvert --merge not completing

I have a root LVM "lvroot" and a snapshot of that root LVM "rootsnap". I broke something in lvroot when performing an initramfs update and can't boot into it, so I booted from the rootsnap snapshot ...

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