Tag: xen
Xen Stats Revised
by David Kowis on Mar.08, 2010, under Linux, W00t!
I had reimplemented some monitoring on my network and then I got to wondering if there was a revised version of the original xen-stats stuff I was using. Turns out there is. The site details instructions on how to set it up in cacti, and it works pretty well. I do wish there was a single graph to collect all for the hosts, instead of individual host graphs, but it’s not bad. Perhaps I’ll build a template that uses the data source and glues them all into one graph. But it provides reasonably accurate data, and it’s not difficult to set up.
(The UPS graphs I need to fix too, somethings broken in the PHP datasource it uses. So if you’ve got a reliable Network UPS Tools graphing source for cacti, other than this one, lemme know.)
Xen 4.0.0 Release Candidate 3
by David Kowis on Feb.16, 2010, under Linux
Has been tagged in their Mercurial repository.
Hopefully soon it’ll go stable, and I can do something with it. I’m also hoping that fedora will have RPMs for it, even unofficially, so that it’s easier to install than building by hand. Or maybe better building documentation would help: detailed dependency information or something. Maybe the stuff exists, but it’s hard to find (or I’m looking in all the wrong places.)
Or I could install CentOS as my domain0 and use that old xen kernel. I don’t need any of the new features, I think. And I don’t think they’ve gotten in online LVM resizing, which is something I’d really want. I can’t remember if they got the USB to PV guests either. I don’t need the overhead of fully virtualized guests, but I would really like to be able to forward a USB device to a specific guest.
Fedora 12 Xen RPMs
by David Kowis on Nov.17, 2009, under Linux, fedora
I built these on a recently updated Fedora 12 box. I haven’t yet had an opportunity to test them. If you do use them and they work great, or not, post in the comments please.
Xen 3.4.2 rpms for Fedora 11 x86_64
by David Kowis on Nov.12, 2009, under Linux, W00t!, fedora
I was using xen 3.4.1 on my fedora 11 Domain0, but I couldn’t ever suspend anything. xm save always failed. Someone on IRC suggested that it was the guest kernel that was to blame. Turns out it was xen 3.4.1.
After many hours searching the intertubes for a srpm or a spec file for building xen 3.4.2 for fedora, I decided that I would hack an existing one to 3.4.2 and hope for the best.
It built after I removed a few patches. The patches mostly complained about being already applied, so I assume the bugs the patches were addressing were fixed in 3.4.2. I have generated rpms for x86_64 and put the spec file up on my site. Enjoy.
Fedora Domain 0 and Domain U I/O performance
by David Kowis on Oct.22, 2009, under Linux
I finally got a Fedora 11 domain0 up and running. Built my own kernel using the patches from gentoo-xen-kernel. Specifically, the 2.6.29.6 patches, as I had issues running the 2.6.30 kernel on this particular box. This box does not have the CPU virtualization extensions, so every VM has to be paravirtualized. Here, I discuss a bit on the awesomeness of pygrub, and then I publis a couple bonnie++ results from the dom0 and the domU.
