Questions tagged [backup]
Making copies of data so that the copies may be used to restore the original after a data loss event, or for historical retention.
246
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Why is RAID not a backup?
When someone mentions RAID in a conversation about backups, invariably someone declares that "RAID is not a backup."
Sure, for striping, that's true. But what's the difference between redundancy and ...
6
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5
answers
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What's needed for a complete backup system?
For my new server, I want to setup a proper backup solution. I've found a great setup that will do twice-daily incremental backups via Dropbox. I plan on backing up my various databases, the webroot ...
49
votes
2
answers
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Prevent the possiblity of writing data to an unmounted mount point directory [duplicate]
I have an Ubuntu server where I'm automounting an external hard drive each boot.
To do this, I've created an empty folder on the root partition, and the drive gets mounted "inside" this folder.
...
25
votes
2
answers
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ZFS Data Loss Scenarios
I'm looking toward building a largish ZFS Pool (150TB+), and I'd like to hear people experiences about data loss scenarios due to failed hardware, in particular, distinguishing between instances where ...
5
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7
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Recommended Backup Media for Circa 2009?
Tape has been the chosen form of backup media for decades, but with newer technologies, this is changing. Now other contenders are creeping up on this venerable format. What is the current sweet ...
35
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3
answers
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How to perform incremental / continuous backups of zfs pool?
How can zfs pools be continuously/incrementally backed up offsite?
I recognise the send/receive over ssh is one method however that involves having to manage snapshots manually.
There are some tools ...
22
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3
answers
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Are RDX removable disks a good replacement for LTO tape?
Over a period of three weeks, I experienced six complete failures of LTO-1 and LTO-2 tape drives at client sites. Some had failed mechanisms. Others lost the ability to write reliably. These were HP ...
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7
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What ways there are to backup repositories for Windows VisualSVN?
At this moment we are using Visual SVN and we are backing up the entire repositories directory for visual svn. This backs up the entire data for each repository inside our svn engine. I am curious ...
11
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7
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Best way to do Subversion backups?
What is the best way to do Subversion backups (on a Debian based server).
Is it to use svnadmin?
svnadmin dump /path/to/reponame > reponame.dump
Or maybe just to tar the dir where the ...
85
votes
11
answers
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protocol version mismatch -- is your shell clean?
When following the instructions to do rsync backups given here: http://troy.jdmz.net/rsync/index.html
I get the error "protocol version mismatch -- is your shell clean?"
I read somewhere ...
40
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19
answers
5k
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Best practices to keep your computer(s) backed up efficiently?
I'm looking for a cheap and efficient strategy to keep my personal computers and laptops backed up.
For example, currently I take a snapshot of my desktop once a week with Ghost and place the image ...
24
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11
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Sync LVM snapshots to backup server
I have a number of Xen virtual machines running on a number of Linux servers. These VMs store their disk images in Linux LVM volumes with device names along the lines of /dev/xenVG/SERVER001OS and so ...
19
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9
answers
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LVM snapshots as a backup strategy
How viable as a backup strategy would be periodical LVM snapshots of xen domU's? Pros, cons, any gotchas?
To me it seems like the perfect solution for a fast, brainless restore. Any investigation ...
15
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6
answers
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How to build a high availability Postfix system?
I'm needing to set up a remote mirror for a postfix server (where the content of both mail servers should be the same at any time).
The idea is that if the main server comes down at some point the ...
13
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4
answers
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Why don't people just use rsync to back up vmware guests?
If I am running a modern vmware ESXi system, I can drop in a statically linked rsync binary and rsync files to any destination over SSH.
I'm trying to understand why most (all ?) backup of vmware ...
13
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7
answers
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Backup MySQL Server
What's the best way to back up a MySQL server? I would like a method that doesn't require bringing down the server. Is something like InnoDB hot backup necessary, or can I just use the backup tools ...
11
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How to use a Volume Shadow Copy to make backups
The plan is to create a shadow copy of a quite large, I/O-heavy volume. It's 350GB, containing a filesystem-based fulltext index organized in hundreds of folders and hundred-thousands of tiny files ...
9
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3
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What's the easiest way to back up EC2 instances automatically?
I'm worried I might log in one day and my fully configured instance has been removed. I would like to be able to back it up daily to S3 but frustratingly this is not a simple setting in the console.
...
5
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5
answers
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How can I back up and replicate a large MySQL database?
How can I backup a large database in mysql? And what is the best way to replicate the database?
what i'm looking for is backing up large database with large amount of data in a small time limit then ...
4
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2
answers
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Does Windows Server's automatic incremental backup "work well" with multiple backup disks?
Since Windows Server 2008 R2 (up to and including Server 2019, as far as I know), Windows Server Backup performs automatic management of full and incremental backup:
Automatic management of full ...
86
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8
answers
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How to backup 20+TB of data?
We have a NAS server at the company I work for that is being used for storing photography sessions. Each session is approximately 100gb. Over the last couple of years this server has accumulated 10+ ...
45
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11
answers
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Does an unplugged hard drive used for data archival deteriorate?
If I were to archive data on a hard drive, unplug it, and set it on a (not dusty, temperature-controlled) shelf somewhere, would that drive deteriorate much?
How does the data retention of an ...
37
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7
answers
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How can I speed up a MySQL restore from a dump file?
I am restoring a 30GB database from a mysqldump file to an empty database on a new server. When running the SQL from the dump file, the restore starts very quickly and then starts to get slower and ...
34
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7
answers
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How can I use rsync with a FAT file system?
I would like to write a simple backup script that saves some data to a FAT drive. Should I reformat the drive and use a better file system or is it possible to use rsync with FAT? If so, what problems ...
33
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3
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How does dropbox version/upload large files? [closed]
I have a free dropbox account (2GB), and I was wondering how the versioning of large files works.
I have a full backup of all my webfiles that sites @ just over 1GB. After the initial upload of 1GB, ...
28
votes
3
answers
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Does Rsync Allow Files To Be Synced Both Ways?
I have backed up a linux web server using rsync with cygwin. I now have a perfect copy of the server on my windows laptop. If i delete or modify a file on my laptop and run rsync again with cygwin ...
25
votes
5
answers
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How to backup a full Centos Server?
I switched a few weeks ago from a dedicated server to a VPS. Now that everything is working well on the VPS I would like to shutdown the dedicated server and close my account with the hosting company.
...
24
votes
2
answers
18k
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Docker volume backup and restore
I'm using Docker to deploy some services on a CentOS 6.4 server, and I'm trying to figure out how to properly backup data they generate.
For example, one of the services is a web application where ...
23
votes
5
answers
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How to keep: daily backups for a week, weekly for a month, monthly for a year, and yearly after that
I need to backup data and config files on this server, daily. I need to keep:
daily backups for a week
weekly backups for a month
monthly backups for a year
yearly backups after that
All of this ...
23
votes
7
answers
3k
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Backup strategy for developer-focused Apple environments?
It's interesting to see the technological split between structured corporate environments and more developer-driven/startup environments. Some of the Microsoft technologies I take for granted (VSS, ...
20
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13
answers
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Complete restore of linux system
I am familiar with using rsync to back up various files from my system but what is the best way to completely restore a machine.
What I have tried in the past is:
Do a basic format/reinstall from ...
17
votes
7
answers
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Is there a working Linux backup solution that uses inotify?
It takes forever to back up. Before we can trust btrfs or ZFS to backup incremental snapshots, wouldn't it be nice if there was a daemon that used inotify to keep track of which files had actually ...
16
votes
4
answers
8k
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Should I backup and restore the `mysql` database?
In the process of creating an automated solution for backing up and restoring an entire MySQL server, I've come across the mysql database which seems to contain user accounts, permissions, metadata, ...
16
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5
answers
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How does RSYNC do incremental Backups
How does rsync know which files are changed and which are not? Does it log its data anywhere in the file?
Because I want to do incremental backups, but first it will transfer all files.
So my main ...
15
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14
answers
5k
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What backup solution you use for linux servers [closed]
What backup solutions you use for linux server in production environment? Do you prefer open source or commercial products?
What you consider to be essential features in backup software?
Which ...
15
votes
7
answers
3k
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Setting up a new backup scheme
I'm in the process of designing my first ever backup scheme. I'm completely new to managing data backup, and there are some concepts that I don't totally understand. Here's what I've got so far, and ...
14
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6
answers
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Trying to setup chroot'd rsync
I'm trying to set up a backup server.
I want to chroot each user (client) to its home directory, and only allow it to use sftp and rsync.
I quickly discovered that I was not the only one trying to do ...
14
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11
answers
5k
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How do you do the offsite hard drive backups?
I have been doing hard drive backups for a while, which I believe a lot of you guys do as well, but am having trouble figuring out a better way storing them offsite. I am wondering how you guys out ...
13
votes
6
answers
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How do you limit the bandwidth for a file copy?
I've got an old windows 2000 box in a remote location with a T1 connection and a vpn to my location. I normally use smb mounts to transfer files but now it's time to decommission the server and copy ...
13
votes
3
answers
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How safe are Windows Active Directory Schema Updates?
I'm trying to get a better understanding about how Active Directory handles Schema updates, specifically how safe the procedure actually is given how critical AD is and given the range of situations ...
12
votes
3
answers
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rsync --iconv option on Mac not working (sync from remote Linux server to local Mac)
I want to use rsync to backup data from a remote Linux server to my local Mac. And I want to initialise this operation on my local Mac. All works fine except that there is a special character problem: ...
12
votes
4
answers
777
views
Sharepoint 2007 Backup Solutions? [closed]
SharePoint 2007 comes in with a built-in backup facility, but I've heard bad things about it. Namely, you can backup but not restore the configuration database, and generally that restoring is always ...
11
votes
7
answers
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Speeding up rsync over smb
I'm backing up a Linux box over SMB to a NAS. I mount the NAS locally and then I rsync a lot of data (100GB or so). I believe it's taking an awfully long time to do it: more than 12 hours. I would ...
11
votes
5
answers
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ZFS Sync over unreliable, slow WAN. ZFS replication, or rsync?
I've been tasked with making an off-site backup work over the WAN. Both storage boxes are FreeBSD based NAS boxes running ZFS.
Once or twice a week, 15-60 gigs of photography data gets dumped to the ...
11
votes
4
answers
24k
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How can I backup an SQL Server database using Windows Server Backup?
Apparently Windows Server Backup has some support for backup of SQL Server databases:
Ability to recover applications. Windows Server Backup uses VSS functionality that is built into applications ...
11
votes
4
answers
4k
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How do I make a backup of a live server?
At my new job, I have a production server with the following qualities:
Windows Server 2003, ancient hardware
Absolutely vital database
No backups whatsoever
Everyone in the company has full admin ...
10
votes
4
answers
16k
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SQL Server Backups using Volume Shadow Copy
Many well-known backup utilities for Windows use the Volume Shadow Copy Service built in to newer versions of windows to create a point-in-time snapshot of the disk in order to safely back up open ...
9
votes
6
answers
1k
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How do you handle data archiving? [closed]
Backups are one thing, but long term archival is another. For example, you might be required to store emails for 7 years, or keep all project data indefinitely. I used to save archives to tape, but ...
8
votes
9
answers
4k
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How do you usually back up your database?
I am using mysql
How often do you back up your database?
How do you normally backup your database?
Export all data into sql or cvs format and keep it in a folder??
8
votes
1
answer
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Command line backup of running Hyper-V images using Volume Shadow Copies (VSS) and Diskshadow.exe
I need to backup running Hyper-V virtual machines with minimal downtime via a command prompt. Backups should be stored on another local disk or remote share.