Tagged Questions

1
vote
2answers
127 views

How to determine optimal size for LVM snapshot?

I'd like to create a backup script that uses LVM snapshots during backup. This script will run on several Linux machines. I'd like to avoid creating snapshot that is too small and gets full during ...
1
vote
0answers
30 views

LVM+MongoDB. Dropping in speed of backup creation

Till recent time we have been making mongo backups archiving LVM snapshot on hidden SECONDARY server with RAID10 on SAS disks. Currently operation on making snapshot from volume with 500 Gb of data ...
0
votes
0answers
64 views

Improving rsync 'pull' backups with LVM snapshots [closed]

I currently backup my server using rsync by having a cron job on an off-site backup system execute: `rsync -aPHvz --link-dest=../${prev_date} --numeric-ids --delete --exclude-from exclude.txt -e ssh ...
2
votes
1answer
136 views

I can't mount a LVM snapshot on a XEN host

I'd like to backup my XEN VMs by copying-rsyncing a LVM snapshot. I'm trying to mount a snapshot that contains a XEN guest's virtual disk (ext4). Below are all the steps I follow. I can't mount the ...
0
votes
1answer
139 views

Can I get rsnapshot to create LVM snapshots on a remote machine?

I'm currently running rsnapshot on host1, backing up some files from host2 using the inbuilt SFTP support (I have daily, weekly, and monthly backups running in a standard rsnapshot configuration). ...
1
vote
0answers
107 views

Backing up VMs to a tape drive

I've got myself one of these fancy tape drives, HP LTO2 with 200/400 GB cartridges. The st driver reports it like this: scsi 1:0:0:0: Sequential-Access HP Ultrium 2-SCSI T65D I can ...
1
vote
1answer
106 views

Restore data from overwritten LVM

I lost all of my data (8 TB) which I collected over the past few years yesterday because I made some seriuos mistakes during the remounting of my LVM. I run a XenServer5.6 installation with additional ...
0
votes
0answers
235 views

backup of KVM VM's running on Ubuntu 12.4.1 precise edition from a remote machine

I am creating a library API which will take the backup of all the VM's running on KVM hypervisor. My VM's can be of any type. I am taking this backup from a remote machine and need to put the backup ...
2
votes
2answers
202 views

backing up MySQL living on a SAN using LVM snapshots. is this doable?

So I was looking into LVM snapshots and it seems like a feasible method for backing up mysql so that it's at least crash consistent. My issue is that I have mysql servers where the mysql data ...
1
vote
2answers
167 views

16tb raid6 + lvm, to partition or not to partition?

So I have a 16tb raid6 on one of a new batch of machines I am setting up. I will be using LVM on top of this and am wondering if there are any compelling reasons to break the raid up into partitions ...
6
votes
3answers
918 views

Backing up Xen domains

I'm currently developing a Xen backup system, however I have met the following problem: I have two methods of backing up: doing dd from the LVM snapshot, and tarring it., and rsync it remotely ...
1
vote
1answer
278 views

Creating Xen backups

I'm looking for a way to create Xen (HVM) backups, using LVM. I know xm save but that is a) inefficient space wise, b) the VM will shut down. I found rsnapshot which is able to create an LVM snapshot, ...
1
vote
2answers
112 views

Can You Specify Where LVM Snapshots Are (Initially) Stored?

Disclaimer: this is my first time using lvm. Upon RTFM, it appears that LVM snapshots are automatically stored in the same directory as the original logical volume. In my case, that would mean the ...
2
votes
2answers
496 views

Differential backups with LVM

Is it possible to create differential backups based on LVM snapshots (or maybe a similar technique)? I'd like to perform backups of my intranet server, which hosts multiple services, and their ...
2
votes
5answers
902 views

Backup solution for 10TB using ubuntu

I am setting up a backup server with roughly ten 2TB hard drives raided. The purpose of this machine is simply to back up about 3-10TB of data from another server. What is the best way to achieve ...
0
votes
0answers
160 views

Please explain how to implement this: Portable DiskSafes With LVM Snapshots

I read a description of a very intriguing backup strategy that seems to fit my requirements. I need help to: implement it manually one time automate it to run periodically Here's the original ...
2
votes
2answers
1k views

Strategy for using snapshots to back up Ubuntu Linux server?

I need some backup advice for my home file server. Here are the mount points, volume groups, logical volumes and used/total space of all the volumes on my Ubuntu 8.10 home file server. / ...
1
vote
1answer
343 views

LVM over Raid 1 with different size disks in Ubuntu

I'm currently building a backup server for a few of the machines in the office. I plan to run ubuntu 10.04 LTS on it. My current setup is: 2 x 1TB disks in software RAID 1 configuration 2 x 2TB ...
1
vote
1answer
241 views

Synchronization of volume snapshots when doing whole system backups

Is there a way to guarantee consistency across volumes when doing backups from LVM snapshots? Consider this scenario: Some system upgrade is in progress. It will write some files to the /usr ...
3
votes
2answers
2k views

Should I be using LVM snapshots along with rsnapshot?

I manage a CentOS 4.8 server for a small workgroup. Last year I converted the filesystem to LVM over software RAID (RAID 1, two mirrored drives). I now have the following filesystems on LVM/RAID: ...
0
votes
2answers
522 views

Backup, Migrate or Clone Failing CentOS 4 (LVM)

I've been running a BlueQuartz CentOS 4 system (Nuonce.net distro) for a few years now and although the hard drive (Deskstar) has always been a bit noisy, on a few recent occasions I've heard it ...
0
votes
1answer
651 views

Converting physical machine into virtual without shutdown it

I have to create virtual copy of existing server (for testing purpose). I have two (physical host) hosts: main - this one will be used as source for virtual machine disk image. It has standard ...
1
vote
1answer
334 views

backups with ubuntu server sharing via samba: lvm snapshots necessary?

I have a file server running on Ubuntu 8.04. I have a separate volume in LVM that I have mounted and shared via samba. I currently take a snapshot of the volume every 15 minutes, do a backup using ...
0
votes
1answer
101 views

Can I move an LVM as I can move an ISO

Can an LVM be copied or transferred to some remote server in a similar fashion as I can do with ISO.(Not asking rsync) I copy the ISO one one place to some other location and on the second location I ...
0
votes
2answers
664 views

How to use LVM on Rackspace Cloud

I am trying to set up a simple but effective solution to make a backup of my rackspace cloud servers. These servers each run subversion, trac, and some database-backed custom php applications. My ...
3
votes
5answers
2k views

Backup Xen domU machines while running

The host machine is running CentOS 5.3 and using LVM to create Logical Volumes (LVs) and to allow live snapshots to be taken of those LVs. My thought was to store all of the image files for the Xen ...
0
votes
0answers
741 views

Backup Xen domU machines while running

The host machine is running CentOS 5.3 and using LVM to create Logical Volumes (LVs) and to allow live snapshots to be taken of those LVs. My thought was to store all of the image files for the Xen ...
3
votes
4answers
813 views

Switch from Solaris to Linux cut backup speed 80%. Help me get the old speed back?

First a quick overview of the environment: NetBackup running on Windows Servers (6.5.4 if you care) with LTO3 drives. The backup target used to be a Solaris 9 server, on Sun hardware, with Veritas ...
11
votes
7answers
14k views

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 ...
12
votes
9answers
17k views

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 ...