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

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Can ZFS snapshots on a NAS (accessed via Windows Previous Versions) be made more flexible in regard to renaming files?

I have a NAS running on OpenSolaris/illumos/OmniOS with several shared ZFS file systems where autosnaps are active to preserve a history (keep 4 15-minute snaps, 24 hourly snaps, 7 daily snaps and so ...
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25 views

Copying snapshot to another machine

I currently have exported an OVA of certain systems so I have a complete backup. After certain changes were made ( additional users added to LDAP for example), I created a snapshot. Would I be able to ...
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18 views

Improving I/O rates for EBS snapshot backed volumes

I'm working with a system that takes a set of 42 rotating daily EBS snapshots of each of its numerous (40) volumes for disaster recovery purposes. EBS volumes are aggregated into a RAID volume. A set ...
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27 views

Amazon EC2 Snapshot corrupt

The snapshots for one of our AWS volumes are corrupt. We use these snapshots as backup, and in the past they have been a great help. (NB: This is not our only backup method!) A corrupt snapshot is ...
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40 views

Boot from VMware snapshot file after accidentally deleting related snapshots

I'll preface this with the obvious: I am dumb. I am currently working from home on some scheduled maintenance on a production server running on a vm -- a bitnami redmine/svn stack to be specific. I ...
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6 views

Creating a new libvirt VM based on existing snapshots

I have a libvirt/qemu-VM with multiple snapshots. (I can for example use virt-manager to see those snapshots.) Is there a way to clone this VM completely keeping all the snapshots? Is it otherwise ...
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409 views

Unable to revert snapshot: “the vendor of the processors in this machine is not the same”

Recently we moved to a new Intel-based ESXi 6.0 server from an older ESXi 5.5 AMD-based server, both with 64bit processors. We just copied the VMs folders from the old server to the new one, then ...
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21 views

Merge btrfs subvolumes of lxc container

Problem: I've made some snapshots of an lxc container in the past. When I tried to make one earlier using the command lxc-snapshot -n base -c commentfile it echo'd Container is not defined. I ran that ...
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20 views

XenServer 6.5 - VM from snapshot and SID

I have been reading up on the myths behind the need to change an SID for a cloned system and how a system never exposes his SID outside his own self (so there's no need for it). Previously i used to ...
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54 views

Is this btrfs snapshot removal performance normal?

I have several boxes running Debian 8, dovecot and btrfs. I'm using btrfs snapshots for short term backup. For this purpose I keep 14 snapshots of the mail subvolume. Performance is OK until it comes ...
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72 views

SCOM Rule - NTFS - Delayed Write Lost

I have just installed SCOM and it is monitoring a subset of the Windows servers that we have installed. There is one rule which is generating alerts which is giving me a little trouble: NTFS - ...
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15 views

Are changes since snapshots still stored as changelogs?

It's been four years. Is the accepted answer of this question about VMWare still accurate? In other words (in case for some reason that link ever breaks), is this still true? When you create a ...
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61 views

How Do I Remove Files Stored In a VMDK?

I am a developer, not an IT guy, but I am the one responsible for managing our servers currently. I have run into a problem... apparently our SQL backups are much bigger than I anticipated, and on ...
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14 views

BTRFS remove directory from snapshot

There is the: btrfs subvolume delete <subvolume> command for deleting snapshots, but is there any solution if you need to delete a single directory from 60 snapshots? Not possible with rm ...
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2answers
51 views

ZFS: very big files + compression + snapshots

I backup several virtual disks (total = around 4 Tb), with several weeks of retention time. I use 4 x 4 Tb disks in the computer dedicated to primary backup. The filesystem is ZFS RAIDZ2, so 8 Tb ...
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51 views

RHEL6.1 VM machines frozen when a quiesced snapshot is created for backup purpose

My RHEL 6.1 virtual machines running on ESXi hosts 5.1.0 get frozen when the backup procedure tries to get a quiesced snapshot. I have to reset the virtual machines from VMware console. The tool used ...
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514 views

VMware snapshot merge vs delete on “DELETE ALL”

A simple version of this question has been asked before (and links to VMware site for simple scenarios exist) - but this is a bit more complicated. I have 4 snapshot scenarios under VMware esxi 5.5: ...
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45 views

VMware snapshot + An error occurred while saving the snapshot msg.snap-hot error

I am using VMware version 5.5 (that manage 57 different VM Linux machines –red-hat version 6 until 7 ) In the VSphere Client (tasks and event), I saw the following error: (on Linux machine name – ...
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79 views

AWS EC2 what is a reservation ID exactly and what does it represent?

I made a script that creates snapshots of our EC2 volumes. The script looks at which instances are running, which volumes are connected to those instances, and then creates snapshots for those ...
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50 views

Use Lvm snapshot for a new (KVM) virtual machine

I need to migrate one CentOS5 (32bit) physical server to in a virtual machine. My idea is to take a snapshot of the LV and then import in kvm creating a new vm. Is this a good idea? More precisely, I ...
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39 views

AWS EC2: EBS snapshot without reboot in read only context it is safe (consistent)?

I have a Windows Server 2012 R2 EC2 instance on AWS platform, with 2 EBS volume attached, the first (C:) for Windows SO (root volume) and the second (D:) for static file storage served by http server. ...
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57 views

Scan only new files whit clamav [duplicate]

I have a cron script witch makes snapshots every day and scan the whole partition whit clamav. But if possible it would bee a better idea to scan only the modified files i think. The snapshot is ...
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41 views

LVM2: Can I change the LV size (not COW-table size) of a snapshot?

I'm curious if it is possible to create a snapshot of (e.g.) 10G volume, and then resize the snapshot to be 20G, along with the file-system within? Using lvresize or lvextend only alters the ...
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44 views

Centos LiveCD Buffer I/O error. How to increase snapshot size?

Now I have liveCD for CentOS receive many error with buffer i/o error . however when I do check -- dmsetup status live-rw: 0 2097152 snapshot 244712/1048576 968 the 1048576 is 1 Megabit bitmap ...
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118 views

snapshot script for vmware esxi host

I am searching for way to create scheduled snapshot creation script. With possibility to set retention days/ count. Maybe someone can share some example or say what are using to create auto snapshots ...
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Issues with 2008R2 Hyper-V Snapshot [Permission Issues]

We have an issue while taking snapshot of a VM machine hosted on Hyper-V host. The Hyper-V host is a Windows 2008R2 Sp1 Ent edition server and we have couple of VMs hosted on them. Whenever I try to ...
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42 views

Figure out the used space on the snapshot thin volume

I have the following lvm configuration. Hard Disk: /dev/sdb (Size 10 GB) VG: vg_root on /dev/sdb THIN_POOL thin_pool occupying the whole physical extent lvcreate -y --extents 100%free --thin ...
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111 views

Is there a way to force restore an ElasticSearch snapshot with “unsupported snapshot state”

I am trying to restore a snapshot, but there were problems in some indices when we took the snapshot. We didn't get any errors when getting the backup, so we deleted the previous instance, but when we ...
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224 views

Live Backup using Proxmox's snapshot-drive command

I have a KVM server(not on a proxmox node), my VPS is based on qcow2 format and I would like to do a live backup of the vms. I have understood there are two types of backup, Internal and External, I ...
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25 views

Qemu qmp snaphot-drive

what is the correct method to use qemu qmp snapshot-drive ? Is there any other way to create snapshot of qcow2 based VPS without using virsh snapshot-create ? They seem to corrupt the filesystem on ...
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69 views

SQL Server VSS writer interfering with VMWare snapshots

After changing to TSM for the VMWare backups, we've started experiencing an odd issue with our Snapshot backups. We take system drive snapshots as a backup solution for the machine states. All the ...
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112 views

“Reinstall” FreeBSD using ZFS snapshots

I am using a dedicated server, and unlike on VPS providers or VM machines, getting back to a clean state (untouched, after install) is quite a laborious thing to do (lots of clicking around in a web ...
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43 views

NAUbackup features + Snapshots

Does anybody know whether or not NAUbackup captures the memory of a vm, along with the disk, when it takes a snapshot? I'm running xenserver 6.5 on three blade servers and I setup NAUbackup to backup ...
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791 views

Delete “orphan” libvirt snapshot

I am trying to live-snapshot using KVM as per this procedure. I must have messed up at some point because I'm in a state I don't understand. My VM is called prod. It was created in file ...
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74 views

ZFS - zfs destroy snapshot during zfs send incremental

How does zfs handle destroying snapshots during an incremental send? Example: 2 servers using ZFS: zfshost1 [root@zfshost1~]# zfs list -t snapshot NAME ...
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53 views

rsnapshot vs EC2 EBS Snapshot

Question What are the pros and cons of using rsnapshot [on a live drive] to a separate EBS volume vs using Amazon's EBS snapshot on a live drive? Background I just moved a small single server from ...
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79 views

How to create an AMI excluding all attached volumes for all instance within VPC using shell script

I have written script to find instance-id from VPC n create AMI of each instance-id : #!/bin/bash #Script to Automate AMI backup echo "----------------------------------\n `date` ...
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102 views

ec2 create-image will it backup attached ebs volumes?

$aws ec2 create-image --instance-id xxx --name yyy --description "zzzz" --no-reboot This created AMI image of EC2 instance but did not created extra attached volume's snapshot ! So is there any ...
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2k views

Backup of running KVM qcow2 VPS

I want a robust method of taking backup of KVM VPS of qcow2 file, while running. After searching for a long time I found that we can use rsync for live backup. I used following command for rsync: ...
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199 views

VMware Sync Driver - fsfreeze - consistent snapshot

I'm looking for now quiet some time to the following answer, does the snapshot taken by VMWare with VMWare Tools installed with the Sync Driver are consistent on linux ? According to this article I ...
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33 views

AWS snapshots before O.S. updates

I've read over the AWS Snapshot docs, but still have a question: When taking a snapshot of an instance before doing yum updates to the O.S.: - I have to snapshot each mounted volume separately, even ...
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18 views

delete a snapshot created before LVM extension

I believe that snapshots and disk extensions are not friends, having said that... Is it safe to delete a VMWare snapshot created before adding a new virtual hdd to my LVM partition? What I mean is: ...
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417 views

After I clear a large number of Snapshots (approximately 1500), FreeNAS 9.3 Web GUI displays “An error occurred.” After two days

My FreeNAS 9.3 Web GUI crushed after I clear a large number of Snapshots (approximately 1500) And now, It only displays these words: An error occurred. Sorry, the page you are looking for is ...
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123 views

Cannot remove snapshot Hyper-V Server 2008 R2

I am slowing going through and removing snapshots that for some inexplicable reason have been running since 2012!!!!!!! Most have been fine to delete and let the merge happen offline or at worst ...
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637 views

NetApp Backup Strategy - Snapshots to SnapMirrors to Tape?

In a previous question we discussed the pros and cons of relying exclusively on NetApp snapshots for backups. I now find myself in this situation as our aging legacy Symantec BackupExec tape server ...
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160 views

Restore “snapshot” of OS partition on physical Linux server to spare partition then boot - caveats?

We're planning to bring a new physical server online in the near future and as part of the disaster recovery / change management plan, I want to be able to easily roll back the operating system and ...
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70 views

MongoDB fsyncUnlock won't unlock occasionally on Windows

We have a MongoDB replica set installed on Windows servers, with a scheduled backup job. MongoDB is configured to use journaling. The job runs db.fsyncLock() via script on MongoDB (primary server), ...
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40 views

Restore an entire virtualized domain to earlier state?

We have set up a lab environment in our office to run various cybersecurity simulations. We are using ESXi 6.0 (VMWare) and we have a domain controller with 3 servers. I know that snapshotting domain ...
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1answer
392 views

AWS EC2 snapshots - how long should they be retained? [closed]

How long should daily EBS-backed EC2 snapshots be retained? We're using ec2-automate-backup to backup (daily) two EBS volumes - OS and data - pertaining to a web application. If I've understood, in ...
2
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1answer
279 views

NetApp - Snapshot Full

I am seeing a bunch of Snapshot Full warning events being generated recently from various volumes on our filers: A Warning event at 22 Jun 10:03 Alaskan Daylight Time on Snapshot ...