Did you try XCP (Xen Cloud Platform, http://www.xen.org/products/cloudxen.html) ? XCP 0.5 is coming out in June.. you can manage it using OpenXenCenter (http://www.openxencenter.com). Basicly XCP is XenServer opensourced and developer further..
Fedora 13 contains Xen hypervisor and tools, but it doesn't contain rpm package for a Xen dom0 capable kernel. There are unofficial Fedora rpm packages for a Xen dom0 capable kernel, based on the upstream pvops dom0 kernels (Linux 2.6.32). More information about Fedora Xen status and links to rpms see: http://fedoraproject.org/wiki/Features/XenPvopsDom0 . More information about available Xen dom0 kernel options see: http://wiki.xensource.com/xenwiki/XenDom0Kernels .
Some comments..
Xen hypervisor (xen.gz) is not meant to be integrated to Linux kernel. Xen is designed to be a separate piece of software. Xen is a secure, type-1 baremetal hypervisor, not a module for Linux.
Xen dom0 ("service console") can be Linux, NetBSD or OpenSolaris. Most people use Linux as Xen dom0. When Linux is used as dom0 it needs to be able to run as Xen dom0 (obviously) - and this is where some people have had pain. For a long time the official Xen dom0 kernel patches were only available for Linux 2.6.18. This was difficult for many people and caused some distros to drop Xen dom0 kernel support because they couldn't affort porting the patches to newer kernels themselves.
Today the situation is different. Xen developers are actively working on rewriting the Xen dom0 patches based on the (already existing) upstream pvops framework. pvops has been in the upstream Linux kernel since 2.6.24. Xen pvops dom0 patches are available today for the long-term maintained 2.6.32 kernel, and also for 2.6.31, 2.6.33 and 2.6.34.
Novell has also forward-ported the old/traditional Xenlinux patches from 2.6.18 to first 2.6.27 and also to 2.6.31, 2.6.32 and 2.6.33. So there are many options today.
For more information about the various Xen dom0 kernels see: http://wiki.xensource.com/xenwiki/XenDom0Kernels
Also xen.org offers XCP (Xen Cloud Platform) which is a full platform, including installation CD and multi-host/pool management. If you use XCP you don't need to install custom kernels or anything - you get all included in the XCP bundle.
More information about XCP: http://www.xen.org/products/cloudxen.html
It's funny.. that spreadfirefox.com has a "DOWNLOAD FIREFOX 3" link: http://www.mozilla.com/en-US/firefox?p=downloadday
Which only gives firefox 2.0.0.14 download links..
Seems they have some problems.. doesn't help with the world record stuff..
Yes, definitely year 2006 is the big year for virtualization.
I also think year 2006 will be big year for iSCSI (IP) SANs.
Vendors like Equallogic (http://www.equallogic.com/ have made IP SANs enterprise ready.. and there are also many products available for the lower end.
The big question is do you need block-level or filesystem-level access to your data?
Netapp devices can export volumes as block-devices via iscsi and fc or as filesystems via nfs and cifs.
Of course you cannot access block-level volume via nfs, or filesystem volume via iscsi.. but both can be served separately from the same netapp box.
There seems to be lots of SATA-RAID based iSCSI SAN devices available nowadays.. Some links to products I have seen:
http://www.equallogic.com./ They make nice SATA-raid based iSCSI SAN devices with all the features you could expect (volumes, snapshots, array/volume-expansion, hotswap, redundant controllers, redundant fans, etc).
There are also software iSCSI target solutions for use with your own/custom hardware. http://iscsitarget.sourceforge.net/ for building linux-based iSCSI target/SAN.
If you are familiar with iSCSI targets / iSCSI SAN devices please post your comments!
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Did you try XCP (Xen Cloud Platform, http://www.xen.org/products/cloudxen.html) ? XCP 0.5 is coming out in June.. you can manage it using OpenXenCenter (http://www.openxencenter.com). Basicly XCP is XenServer opensourced and developer further..
I think that has been already supported for a while in Xen..
Fedora 13 contains Xen hypervisor and tools, but it doesn't contain rpm package for a Xen dom0 capable kernel. There are unofficial Fedora rpm packages for a Xen dom0 capable kernel, based on the upstream pvops dom0 kernels (Linux 2.6.32). More information about Fedora Xen status and links to rpms see: http://fedoraproject.org/wiki/Features/XenPvopsDom0 . More information about available Xen dom0 kernel options see: http://wiki.xensource.com/xenwiki/XenDom0Kernels .
Some comments.. Xen hypervisor (xen.gz) is not meant to be integrated to Linux kernel. Xen is designed to be a separate piece of software. Xen is a secure, type-1 baremetal hypervisor, not a module for Linux. Xen dom0 ("service console") can be Linux, NetBSD or OpenSolaris. Most people use Linux as Xen dom0. When Linux is used as dom0 it needs to be able to run as Xen dom0 (obviously) - and this is where some people have had pain. For a long time the official Xen dom0 kernel patches were only available for Linux 2.6.18. This was difficult for many people and caused some distros to drop Xen dom0 kernel support because they couldn't affort porting the patches to newer kernels themselves. Today the situation is different. Xen developers are actively working on rewriting the Xen dom0 patches based on the (already existing) upstream pvops framework. pvops has been in the upstream Linux kernel since 2.6.24. Xen pvops dom0 patches are available today for the long-term maintained 2.6.32 kernel, and also for 2.6.31, 2.6.33 and 2.6.34. Novell has also forward-ported the old/traditional Xenlinux patches from 2.6.18 to first 2.6.27 and also to 2.6.31, 2.6.32 and 2.6.33. So there are many options today. For more information about the various Xen dom0 kernels see: http://wiki.xensource.com/xenwiki/XenDom0Kernels Also xen.org offers XCP (Xen Cloud Platform) which is a full platform, including installation CD and multi-host/pool management. If you use XCP you don't need to install custom kernels or anything - you get all included in the XCP bundle. More information about XCP: http://www.xen.org/products/cloudxen.html
If KSM puts the KVM module on par with Xen in terms of performance then I think the writing is on the wall for Xen's demise.
No. Not at all. KSM saves memory but hurts performance. It shares memory across virtual machines to save memory.
Xen can't share memory across virtual machines, it's just not put together like that.
Performance is about identical for KVM and XEN.
Actually Xen has some form of memory overcommit nowadays.. check tmem patches from Oracle. I think they'll be part of upcoming Xen 4.0 release.
It's funny.. that spreadfirefox.com has a "DOWNLOAD FIREFOX 3" link: http://www.mozilla.com/en-US/firefox?p=downloadday Which only gives firefox 2.0.0.14 download links.. Seems they have some problems.. doesn't help with the world record stuff..
Yes, definitely year 2006 is the big year for virtualization. I also think year 2006 will be big year for iSCSI (IP) SANs. Vendors like Equallogic (http://www.equallogic.com/ have made IP SANs enterprise ready.. and there are also many products available for the lower end.
The big question is do you need block-level or filesystem-level access to your data?
Netapp devices can export volumes as block-devices via iscsi and fc or as filesystems via nfs and cifs.
Of course you cannot access block-level volume via nfs, or filesystem volume via iscsi.. but both can be served separately from the same netapp box.
There seems to be lots of SATA-RAID based iSCSI SAN devices available nowadays.. Some links to products I have seen:
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http://www.equallogic.com./ They make nice SATA-raid based iSCSI SAN devices with all the features you could expect (volumes, snapshots, array/volume-expansion, hotswap, redundant controllers, redundant fans, etc).
http://www.equallogic.com/pages/products_PS100E.h
14 250G sata disks, 3U, 3.5 TB of raw storage.
http://www.equallogic.com/pages/products_PS300E.h
14 500G sata disks, 3U, 7 TB of raw storage.
http://www.equallogic.com/pages/products_PS2400E.
56+ TB
Looks good. I have not yet used them myself
Another iSCSI SATA SAN possibility:
http://www.mpccorp.com/smallbiz/store/servers/pro
16 sata disks, review:
http://www.infoworld.com/MPC_DataFrame_420/produc
This company also has SATA iSCSI SAN devices:
http://www.dynamicnetworkfactory.com/products.asp
iSCSI SAN comparison:
http://www.networkcomputing.com/story/singlePageF
There are also software iSCSI target solutions for use with your own/custom hardware.
http://iscsitarget.sourceforge.net/ for building linux-based iSCSI target/SAN.
If you are familiar with iSCSI targets / iSCSI SAN devices please post your comments!