Making copies of data so that the copies may be used to restore the original after a data loss event, or for historical retention.

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13
votes
2answers
4k views

Duplicity Full Backup Lifetime and Efficiency

I'm trying to work up a backup strategy for some clients, and am leaning towards duplicity for remote backup (already use rdiff-backup for internal/on location backups). Is it reasonable to want a ...
13
votes
5answers
5k views

btrfs-enabled backup solution

With btrfs hitting production in Oracle EL 14th this month (together with working fsck and scrubbing from Linux 3.2) I was thinking of redesigning my current backup solution to utilise it. Note that ...
13
votes
6answers
3k views

recommendations for efficient offsite remote backup solution of vm's

I am looking for recommendations for backing up my current 6 vm's(and soon to grow to up to 20). Currently I am running a two node proxmox cluster(which is a debian base using kvm for virtualization ...
12
votes
10answers
1k views

What good free software is available for backing up a few PCs?

I have a network of about 30 Windows PCs. What good free software is available that will automatically (scheduled) make backups (not whole HDD but only certain folders) for these PCs and save on a ...
12
votes
9answers
4k views

Why is it so important to backup your transaction log?

We're currently implementing a backup solution for a client and their ERP solution uses SQL Server. The ERP solution was set up by a different company. And they are telling me that it is super ...
12
votes
2answers
7k views

Simple Backup Strategy for Amazon EC2 instances / volumes?

You have entered Introductory Backups for Amazon EC2 EBS-backed Windows Images 010... I have been browsing my brains out to find a simple backup strategy for our single windows 2008 server running ...
11
votes
3answers
7k views

What is Time Machine doing?

Sometimes OS X tells me that it's "Preparing backup..." for an enormous amount of time. The time it takes seems to have no correlation to the amount of data to be backed up. Same for the "Finishing ...
11
votes
3answers
4k views

Amazon EC2 Backup Strategy

I have a couple Web server/DB server setups using Amazon's EC2. I am currently taking daily snapshots of all my system and EBS drives that contains all of my application files, DB files, source code ...
11
votes
4answers
4k views

How do I backup my TRAC installations?

We use separate TRAC instances as our ticket system for many projects and need to have them moved off site several times a day for disaster recovery. What is the best way to make this happen? Is ...
11
votes
8answers
8k views

How do I backup a mysql database, but at low priority?

I want to backup a database, but during the day when there is load on the server. It's vital that the backup doesn't impact apache and other databases running on the same server. It should be ...
11
votes
4answers
8k views

Backing up qcow2 kvm guests

I can't find any good info on backing up qcow2 kvm guests. I'm not really interested in the guests running state, only the file system. This question suggests using savevm but that creates a snapshot ...
11
votes
3answers
7k views

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 ...
11
votes
2answers
24k views

How to backup VMWare ESXi using free tools?

What do I need to do to establish backup of ESXi 3.5 or 4 server? It is my understanding that the server runs Linux, so as far as I understand the backup sequence should be: create a snapshot of VM ...
11
votes
1answer
5k views

Duplicity and Amazon S3 Script

I'm looking to backup my linux server to Amazon S3 using duplicity. I found a great resource here that helped me get it setup and am using the basic script that was listed there for me and now copied ...
11
votes
3answers
4k views

Backing up data stored on Amazon S3

I have an EC2 instance running a web server that stores users' uploaded files to S3. The files are written once and never change, but are retrieved occasionally by the users. We will likely accumulate ...
11
votes
3answers
3k views

Any need to make backup of data on Amazon S3?

I'm hosting 200 GB of product images at S3 (this is my primary file host). Do I need to back that data up somewhere else, or is S3 safe as it is? I have been experimenting with mounting the S3 ...
11
votes
3answers
1k views

Is this a valid backup strategy for MongoDB?

I've got a single dedicated server with a MongoDB database of around 10GB. I need to do daily backups, but I can't have downtime with the database. Is it possible to use a replica set on a single disk ...
10
votes
4answers
4k views

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, ...
10
votes
7answers
2k views

How do you backup a storage server?

I'm looking at implementing a very large storage server to be used as live NAS for several other servers (all Linux-based). By very large, I mean between 4TB and 20TB usable space (although it's ...
10
votes
4answers
1k views

Best way to prevent the root system filling up when a mount fails?

We have an internal web server (virtualized, hosting ReviewBoard, but not super relevant) and we have a relatively consistent failure mode with failed NFS mounts causing / to fill up. Distro is Ubuntu ...
10
votes
8answers
21k views

Why should one have a secondary DNS server?

I'm very confused. I basically understand how DNS works. Here's an example that helps illustrate what I'm having trouble understanding. Right now, I run a small web-server. I use my provider's DNS ...
10
votes
5answers
2k views

How can I backup multi-gigabyte databases in MySQL? Bonus points for speedier restores

I have a 4GB database in MySQL. How can I back it up? Furthermore, is there a way that I can speed up the restoration process in the event that I need to recover? I currently use a cron job every ...
10
votes
7answers
10k views

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 ...
10
votes
6answers
19k views

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 ...
10
votes
4answers
2k views

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
4answers
411 views

How Serviceable are Tape Drives?

I'm contemplating an auto-loading tape drive as part of a backup strategy. This would be my first experience with tape backup. The cost-effectiveness of tape drives seems to depend on the assumption ...
10
votes
4answers
25k views

For large files compress first then transfer or rsync -z? which would be fastest?

I have a ton of relativity small data files but they take up about 50 GB and I need them transferred to a different machine. I was trying to think of the most efficient way to do this. Thoughts I had ...
10
votes
5answers
4k views

Synchronizing very large folder structures

We have a folder structure on our intranet which contains around 800,000 files divvied up into around 4,000 folders. We need to synchronize this to a small cluster of machines in our DMZs. The depth ...
10
votes
2answers
256 views

Should the virtualization host be allowed to run any service?

I recently setup a virtualization server for the small company I'm running. This server runs few virtual machines that are used for development, testing, etc... My business partner works from a ...
10
votes
3answers
14k views

Amanda, Bacula, BackupPC Which has a reliable windows client?

I wish to setup an automated backup system for three Windows XP machines in the same building to a Linux server out on the WAN. I visit each machine every few months and make a disk image for a bare ...
10
votes
1answer
283 views

Migrate live server

I'm in trouble, I have a running server with the usual services (httpd, mail, sql), and looks like I must be really fast to prevent total data loss (my RAID array failed, so I'm depending on a single ...
10
votes
3answers
1k views

VirtualBox - use in small office and backing up

I run a small office consisting of a 8 man development team and a couple of managers. We're thinking of moving to a hardware setup whereby we have 1 single powerful server running several VirtualBox ...
10
votes
6answers
14k views

How do you backup a SAN?

long time reader, first time asker :) I have been reading up a lot on iSCSI and SANs in general and I believe I have been able to answer most of my questions and concerns on the topic, but this one ...
10
votes
6answers
1k views

How to choose a cloud service for backups

I am thinking of using a cloud service to backup one of my client's website. My (clients) main concerns are (in decreasing order of importance) Protection of IP (trade secrets, source code), user ...
10
votes
7answers
5k views

Backup solutions for Rackspace cloud sites?

What options do I have for backing up the content from a Rackspace Cloud Sites including files and databases? I know they have cron jobs, but I am not sure what options I have when it comes to that. ...
10
votes
2answers
3k views

Which is better for website backup - rsync or git push

I run 2 LAMP web servers at different providers for disaster recovery purposes - a high powered live server, and a low powered backup server. Currently I rsync all the data from the live server to ...
9
votes
7answers
20k views

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
votes
3answers
6k views

Can NetApp Snapshots be used as Backups?

Our shop relies very heavily on NetApp Volume Snapshots for backups. We use traditional agent-based tape backups for some of our data but by and large we rely on the Snapshots for the majority of our ...
9
votes
6answers
16k views

Is there An open source de duplication backup solution? [closed]

I am looking for a solution for backing up about 30 of my servers that are a mix of centos, windows 2003 and 2008 machines. I have a san in another data center with a 1 Gig link between the sites ...
9
votes
7answers
42k views

How to backup virtual machines on a standalone ESXi host?

Standalone ESXi (4.1) host without any vCenter Server. How to backup virtual machines as quickly and storage-friendly as possible? I know I can access the ESXi console and use the standard Unix cp ...
9
votes
5answers
224 views

How can I decrease the time spent reformatting / restoring user's workstations?

I started working for a medium sized company (approx. 150 users). When user's workstations need to be reformatted for any variety of reasons, we reformat, reinstall windows from an oem disk, install ...
9
votes
2answers
2k views

Can I make rsync output summary only?

Because I use rsync to backup a directory which is very big, containing many sub-dirs and files, so I dont want to see the "incremental file list", I want to know the summary in the end only. but if I ...
9
votes
6answers
1k views

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 ...
9
votes
2answers
9k views

How do I create a read only MySQL user for backup purposes with mysqldump?

I'm using the automysqlbackup script to dump my mysql databases, but I want to have a read-only user to do this with so that I'm not storing my root database password in a plaintext file. I've ...
9
votes
3answers
2k views

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. ...
9
votes
1answer
13k views

SSH access to Apple Time Capsule

Is there any way to install or activate sshd in an Apple Time Capsule in the way you can download dd-wrt and install custom firmware on a netgear router? I'd like to enable sshfs access to Time ...
9
votes
2answers
1k views

Areca 1280ml RAID6 volume set failed

Today we hit some kind of worst case scenario and are open to any kind of good ideas. Here is our problem: We are using several dedicated storage servers to host our virtual machines. Before I ...
8
votes
3answers
4k views

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 ...
8
votes
4answers
332 views

Should static data be backed up every time to tape?

In the Backup and Recovery book, they write it is good practice to make a full backup every month, and then increments or differential back up each week. What if I have 800GB data and ~10GB changes ...
8
votes
5answers
9k views

How does RSYNC does incremental Backups

How does RSYNC knows which files are chnages and which are not. Does it logs its data anywhere in the file. Because I want to do incrrmental backups but first it will transfer all files. So my main ...