Displaying 20 results from an estimated 10000 matches similar to: "Xen backups using LVM Snapshots"
2009 Apr 15
32
cLVM on Debian/Lenny
Hi -
Is there someone around who successfully got cLVM on Debian/Lenny
working? I was wondering if I was the only one facing problems with...
Thanks in anticipation,
--
Olivier Le Cam
Département des Technologies de l''Information et de la Communication
CRDP de l''académie de Versailles
_______________________________________________
Xen-users mailing list
2003 Apr 29
1
freezeing the ext3 filesystem
Hi,
I discovered that SGI XFS for Linux har a utility called xfs_freeze,
which freezes the filsystem and makes sure that the filesystem is
consistant. It is a bit like a mount -o remount,ro but it does not fail
when applications have open files.
When we take snapshots of our XFS volume, we do "xfs_freeze -f /mnt/foo;
lvcreate -s /dev/vg_foo/bar /dev/vg_foo/bar-snapshot;xfs_freeze -u
2008 Nov 20
27
lenny amd64 and xen.
I''ve installed debian lenny amd64, it is frozen now.
I''ve install kernel for xen support but it doesn''t start.
It says "you need to load kernel first" but I''ve installed all the packages
concerning xen, also packages related to the kernel.
Perhaps lenny doesn''t support xen anymore?
Any solution?
2012 Apr 25
1
LVM-snapshot based KVM VMs
Good m/d/n guys, wanted to put idea through you before trying to implement
this.
So afaik LVM snapshots basically don't take any "real" space on hard drives.
I'm using KVM virtualization on my hosts and let's say i create an LVM
volume for my linux VM, then install it properly, shut it down and take LVM
snapshot of it.
Basically i've just cloned it (LVM2 snapshots are
2009 Oct 26
6
LVM over Xen + Network
Hi,
We are planning to have LVM being used over a network of 3 h/w machines(500
GB Disk each)
Each hardware machine will have 2-3 domUs.
Can we store these domUs as a Logical Volumes stored across Network of these
3 machines?
Can one DomU exceed the 500 GB (physical drive size) and store say 1 TB of
data across the networked Physical Volumes?
Has anyone done this before?
Thanks and regards,
2010 Mar 30
3
bare metal xen hypervisor
hi,
i am new to xen.
pls. guide me what is best os should be used with xen.
also let me know if there is any baremetal xen hypervisor available as i
read that i require one OS on which xen hypervisor will be installed. want
to use it with 32 bit machine.
thanks for your help.
--
With Best Wishes
Balwant
_______________________________________________
Xen-users mailing list
2005 Nov 25
3
Query: Filesystems
Hello,
Just a few quick, but not very simple questions...:
Do any Linux filesystems (besides XFS) support freezing?
(ie. in conjuction with LVM snapshots this can allow a mounted
filesystem to be frozen [freezing all processes writing to this
filesystem] in a valid state (with possibly dangling
unlinked files), the device can be snapshotted via LVM, and the
original filesystem unfrozen - the
2010 Aug 14
6
best ways to do mysql backup
we have multiple servers approx 10 and each has about 100 GB of data in
the /var/lib/mysql dir , excluding tar , mysqldump and replication how do we
take backup for these databases on to a remote machine and store them
datewise , ( the remote machine is a 2TB HDD )
currently tar is not feasible as the data is too huge and the same goes
with mysqldump
suggestion will be of great help
--
2008 Jul 24
13
performace of disks
Hello,
Queries:
1 - what is the best RAID (0,1,5,10,50) for server running very, very
VM instances ???
2 - and config of stripes/element sizes (32, 64, 128, 256, etc, KB) ??
3 - in the configuration of VM, exit one difference in performance
between image file (disk:/) or LVM partition (phy:/) ???
any URL or docs for read about this theme ?
mmm.. it is all for moment.
thanks
--
--
Victor
2009 Feb 25
18
Paravirtualized Linux with graphics (X Window)?
Hi,
Anybody please tell me how to have a PV Linux with graphics?
I succesfully created some PV Linux with debootstrap and xen-tools.
But then all the images must be started with "xm create -c" command,
and everything then is console, with no X Window.
In short, I want to have PV Linux, but with X. How to do that?
Thanks,
H
_______________________________________________
Xen-users
2010 Apr 10
16
snapshots on xen
Hi all. I''m using sles11 for my xen servers. I would really like to be
able to do hot snapshots of disk AND memory, and then have these
snapshots backed up to tape or off site for disaster recovery. I''m
thinking this would be done weekly or monthly, not nightly.
Two questions:
1) Is this even possible?
2) I could probably have the systems shutdown to make a clean backups,
but
2005 Sep 28
1
problems with shadow copy
Hi people, im trying to use shadow copy. Is anyone currently using it?
Im following the oficial howto in the samba home page and when i do the
xfs_freeze the system totally hangs, any ideas? I know this isn't a
specific samba question...
I know how to use LVM and snapshots.. the samba how to is accurate?
Tnxs in advance.
2006 Jun 07
14
HA Xen on 2 servers!! No NFS, special hardware, DRBD or iSCSI...
I''ve been brainstorming...
I want to create a 2-node HA active/active cluster (In other words I want to run a handful of
DomUs on one node and a handful on another). In the event of a failure I want all DomUs to fail
over to the other node and start working immediately. I want absolutely no
single-points-of-failure. I want to do it with free software and no special hardware. I want
2006 Oct 11
9
FAQ: How to backup for recovery?
Hi!
DomUs can be backed up just fine, and there''s no problem to restore files as long
as the DomU boots. Now I wonder how to recover hard (desaster recovery)...
Backing up the disk images or partitions (from Dom0) seems to be not an option,
because there are changes to them all the time, so incremental backups would
always save them, and all saves would be inconsistent.
Now the idea
2009 Feb 24
12
How (not) to destroy a PostgreSQL db in domU on powerfail
Now I''m sure that the following configuration can destroy a PostgreSQL
8.3.5 database:
* Linux host (dom0) with XEN, XFS filesystem with "nobarrier", RAID
controller with battery backed cache.
* XEN vm (domU) with XFS filesystem with "nobarrier" with postgresql
* my daughter with 3.5 years switching off the power supply of the
server, just behind the UPS
Seems XEN
2010 Jun 14
49
iSCSI and LVM
Hi Everyone,
I am going to get a storage server which will be connected to my Xen hosts via iSCSI/Ethernet. I wish to use LVM for the DomU disks. The storage server will have a RAID10 array, and 2 Xen hosts will connect to this (Each will have a 50% share of the RAID10 array, space wise).
What is the best way to go about this? Should I:
a) Split the RAID10 array into 2 partition on the
2004 Nov 10
3
Copying Oracle data files
Can I copy an Oracle database by just copying that Oracle Database
datafiles and moving them to another server with oracle? If
possible can one back up a database using this same method.
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2008 Jun 03
6
development machine with xen on gentoo
Hi all.
We just put a relative large server in operation (for our measures ;-)
), a 4x Dual Core / Intel with 16GB Ram and a 3ware 9550SX SATA-RAID
with 4 drives. Operating system for the Dom0 is an up-to-date gentoo linux.
Everything runs really fine, there are 4 Domu''s running, 1x gentoo and
2x debian and 1x Windows Server 2003. DomU''s are running blazing fast in
normal
2006 Oct 12
5
AoE LVM2 DRBD Xen Setup
Hello everybody,
I am in the process of setting up a really cool xen serverfarm. Backend
storage will be an LVMed AoE-device on top of DRBD.
The goal is to have the backend storage completely redundant.
Picture:
|RAID| |RAID|
|DRBD1| <----> |DRBD2|
\ /
|VMAC|
| AoE |
|global LVM VG|
/ | \
|Dom0a| |Dom0b| |Dom0c|
| |
2006 May 24
3
Problems booting a 32bit domU kernel on a Debian sarge amd64 x86_64 dom0 host.
I installed Debian sarge amd64 on a Intel em64t processor machines and have
been using the Xen 3.0 packages in backports.org.
I can boot a 32 bit guest OS fine if I use the
vmlinuz-2.6.16-1-xen-em64t-p4kernel, but when trying to use the stock
vmlinuz-2.6.16-xen from their binary tarball, or building it from the source
package I get the following error:
xentest:/var/log# xm create debian0.cfg -c