Displaying 20 results from an estimated 10000 matches similar to: "Large server, Xen limitations"
2010 Jun 08
21
My future plan
My future plan currently looks like this for my VPS hosting solution, so any feedback would be appreciated:
Each Node:
Dell R210 Intel X3430 Quad Core 8GB RAM
Intel PT 1Gbps Server Dual Port NIC using linux "bonding"
Small pair of HDDs for OS (Probably in RAID1)
Each node will run about 10 - 15 customer guests
Storage Server:
Some Intel Quad Core Chip
2GB RAM (Maybe more?)
LSI
2008 Aug 27
1
ACPI HPET Timer - Works on standard Kernel - Broken on Xen Kernel
I have an error in my dmesg system log about hpet not correctly
enabling:
hpet_acpi_add: no address or irqs in _CRS
The same kernel without Xen enables it fine:
hpet0: at MMIO 0xfed00000 (virtual 0xffffffffff5fe000), IRQs 2, 8, 31
hpet0: 3 32-bit timers, 25000000 Hz
hpet_resources: 0xfed00000 is busy
Do I have to pass an additional boot option? (ACPI is already enabled)
or is there
2008 Aug 28
8
RHEL 5.2 Xen Kernel doesn''t detect all amount of physical memory
Hello All,
Does anyone know what is the current status of RHEL 5.2 x86_64 with respect
to the maximum amount of RAM detected by the Xen 64 bit kernel
(the one that shipped with Red Hat distribution )
In the following link
https://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/en-US/RHEL510/Virtualization_Guide/ch-virt-hw-support.html
it states that 32GB of RAM is the maximum amount of
2008 Dec 11
11
rhel5 32bit xen 3.3.0 rpms?
RHEL5 32bit xen 3.3.0 rpms? Anyone? ;)
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2009 Jan 27
3
howto upgrade
Hi,
I would like to ask the proper or recommended way of upgrading xen...?
I started with 3.1.0 then upgraded to 3.2.1 but now I am not able to use
the original system. Since I am not satisfied[*] with the current setup
I would try to upgrade to 3.3.1 but it would be nice if something went
wrong I could downgrade it to 3.2.x... It is a pitty that booting the
previous xen image does not work
2009 Jan 27
3
howto upgrade
Hi,
I would like to ask the proper or recommended way of upgrading xen...?
I started with 3.1.0 then upgraded to 3.2.1 but now I am not able to use
the original system. Since I am not satisfied[*] with the current setup
I would try to upgrade to 3.3.1 but it would be nice if something went
wrong I could downgrade it to 3.2.x... It is a pitty that booting the
previous xen image does not work
2009 Jan 26
3
GPLPV
Hello list;
I´ve updated my windows 2k3 GPLPV drivers from 0.9.9 to 0.9.12-pre13.
But now, i have two xen block devices; (of course, one of them is not
working and is marked with the yellow exclamation).
How can i fix it, or how can i uninstall the GPLPV drivers in order to make
a clean install?
Thanks
Juan Pablo
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2023 Jan 06
2
centos 8-Streams kernel?
Hi,
Does anyone know what is happening with centos 8-Streams kernel?
It has been behind RHEL for months now, RHEL8.7 has 4.18.0-425.3.1.el8 built in December and Streams has 4.18.0-408.el8 built all the way back in end October. Is there some policy somewhere that I missed that says that 9 will be now getting the focus or whatnot?
thanks,
2009 Feb 02
4
Xen 3.3.0 cpu cache problems
Dear Xen users,
I have a problem with "Xen 3.3.0". All domU (paravirt) only have "32 KB"
of cache instead of "6144 KB" as listed in dom0. This is really
noticeable under load since the system tends to be really slow.
I did not have this problem with "Xen 3.2.1".
I''m using the same domU configuration files for the new and the old
installation.
2008 Aug 12
1
Powernow Failure with Xen Kernel
Sorry to have so many questions but I seem to have quite a few mini
problems with my first Xen setup. My xen server works fine with Powernow
on the standard Kernel but with the Xen kernel it fails. Does anyone
know why? Details below.
With Standard Kernel
powernow-k8: Found 2 Quad-Core AMD Opteron(tm) Processor 8350 processors
(8 cpu cores) (version 2.20.00)
powernow-k8: 0 : fid 0x0
2009 Jan 23
2
extend hdd in domU
Hi Alli need some information about how i can extend the HDD in domU.
I am a domU having 10GB of disk assigned to it now which is running out of
space.
is there a way i can assign a other 10GB space to the system in such a way
that it appears as a single HDD of 20GB without loss of data.
Thanks
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2023 Jan 07
1
centos 8-Streams kernel?
Heh,
Your sentiments on the website very much mirror my own, although I?m more focused on server applications rather than on desktop (we use Macs and Ubuntu for that). When Red Hat announced Streams, I was terrified at first and my first instinct was to switch to Rocky or a similar 1:1 distro, but then thought there might be something good coming out of the whole ordeal. And indeed it did, we
2009 Aug 06
2
kernel 2.6.30 xenified --- report - firmware problem
Hi,
I am sucesfully running 2.6.30 xenified kernel:
Machine
DELL Optiplex 960
CPU intel E8400
8GB RAM
Debian lenny 5.0 x64
Xen 3.4.1 rc11
+
kernel 2.6.30.2 xenified
thanks to howto from bderzhavets:
http://bderzhavets.wordpress.com/2009/07/07/building-xenified-2-6-30-1-kernel-via-xen-patches-2-6-30-2-tar-bz2/
So far running ok.
1) I am not able to resolve issue while booting xenified
2023 Jan 07
1
centos 8-Streams kernel?
If you want to follow CentOS Stream development, I have two websites that
grab CentOS-supplied XML and publish blog entries of updated packages
whenever that happens:
https://centos.passthejoe.net/
https://passthejoe.tilde.institute/centos/
Both websites have the same content.
Frustration with CentOS Stream 8 development and security -- especially the
kernel -- drove me to create this site so
2009 May 13
3
Virsh-install error
Hi everyone,
This is my first attempt at a PV guest install from scratch and I''m a
tad confused. Have I answered one of the questions virsh-install asks
wrongly?
Does anyone know of a general guide for installing PV guests with
virsh-install? (Most Centos docs seem to use the GUI based virt-manager
and I only have command line access).
Am I meant to make use of the files here:
2009 Sep 09
1
RE: xen - rdma live migration support
Hi Ola,
There was some code done by IBM a few years ago in conjunction with a University that worked and showed the benefits but AFAIK it was never integrated into Xen. The research paper is around on the web.
A few of us requested RDMA migration support for version 4.0 and it is at the top of the request list, I suspect it is probably a case of enough people asking and Citrix approving.
2009 Apr 24
12
NIC Offloading Confusion
I have been using the built in Xen Paravirt NIC drivers for paravirt
networking and had bad performance until I disabled all offload setting
on the bridge and paravirt nic (From Dom0).
There are 2 related questions I have, where should I be tweaking the
offload settings, the Dom0 Physical NIC, The Bridge or the DomU NIC?
Which settings in particular tend to cause trouble? (I just disabled all
of
2009 Apr 20
3
Windows 2008 x64 crashes on install
Hello,
I am trying to install Win2008 x64 on xen. However it always crashes
with: 0x0000005b which from my research means incompatible CPU. Can
anyone assist with this? How can I get x64 to work?
cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 2344 HE
grep svm /proc/cpuinfo
flags : fpu tsc msr pae mce cx8
2010 Jan 17
2
docs/reference for NUMA usage?
i''m reading up on numa usage. so far, i''ve enabled numa on my Xen
box. @ Dom0 i see,
xm dmesg | grep -i numa
(XEN) Command line: ... numa=on ...
(XEN) No NUMA configuration found
i guess i need to ''configure'' numa. i''ve no clue how, and haven''t
found the docs for it yet, despite looking.
i found this old thread,
2008 Jul 31
1
Am I running NUMA?
The subject says it all really, I''m pretty sure the system and bios are
NUMA aware but I''m not sure if it''s enabled? Is it supported in 3.2.1
stable?
Thanks,
Rob
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(XEN) Xen version 3.2.1