similar to: Xen backups using LVM Snapshots

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

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

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?

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

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,

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

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

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 --

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

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

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

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.

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

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

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

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

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. ============================================================= PLEASE NOTE: The provider of this email service, http://www.jislaaik.com, does NOT tolerate Spam and Fraud! If you receive an unsolicited email or

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

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| | |

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