similar to: Slow HVM IO performance with newer kernels

I'm trying to setup a LVM mirror on 2 iSCS targets, but can't. I have added both /dev/sda & /dev/sdb to the LVM-RAID PV, and both have 500GB space. [root at HP-DL360 by-path]# pvscan PV /dev/cciss/c0d0p2 VG LVM lvm2 [136.59 GB / 2.69 GB free] PV /dev/sda VG LVM-RAID lvm2 [500.00 GB / 490.00 GB free] PV /dev/sdb VG LVM-RAID lvm2 [502.70 GB /

All, I have a fresh CentOS 5.2 server that I am just starting to customize, it is very close to stock. This morning I ran yum update: ============================================================================= Installing: kernel-xen i686 2.6.18-92.1.6.el5 updates 15 M Updating: samba i386 3.0.28-1.el5_2.1 updates 16 M

I''m seeing slower then expected disk IO. Also, using sar, it seems the disk is measuring different utilization on the domU then the dom0. I''ve attached to the disk with: "phy:/dev/PowerVault00/KojiShare,xvdb1,w" That logical volume has a physical volume of an attached 15 disk raid6 array (an MD1000 from dell). Here is the sar data I''m referencing:

Hello, I'm wondering if anyone out there is doing tap:aio disk devices on a Xen HVM vm with any success. Please let me know if you are, and perhaps your version info and a config file snippet. I've posted this to the xen-users list, and what I'm trying to do seems to be correct, works on Ubuntu, Debian, and XenSource; but it doesn't work on CentOS. Here's the snippet from my

Hello, i will describe my approach 1) I have downloaded Centos5-64bit xen image from jailtime.org 2) I have created own swap image with 512MB file size 3) I have used same as dom0 kernel 2.6.18-53.1.19.el5xen 4) I have mounted my image file and copied /lib/modules/2.6.18-53.1.19.el5xen 5) I have created custom ramdisk for domU with mkinitrd --with=xennet --preload=xenblk

I have full virtualized CentOs with disks ike this ------------- /dev/vg00/lv_root / ext3 defaults 1 1 /dev/hda1 /boot ext3 defaults 1 2 --------------- I try change my it to paravirtualized, but after reboot I got kernel panic, because /dev/vg00/lv_root wansn''t found. ----------------- this is my grub

Hello, I would like to install OCFS2 on CentOS5.2 with the 2 2.6.18-92.1.6.el5xen kernel. When I try to compile the OCFS2 source for this kernel I see a message nothing todo for rhel5 in the vendor section. What I did was the following: 1) run the configure script 2) run make in the ocfs2-1.3.9 dir. How can I compile the source for my distribution? Has anyone succeded in compiling the source

I have a kickstart file with the following partitioning directives: part /boot --fstype ext3 --onpart=sda1 part pv.100000 --onpart=sda2 --noformat volgroup vol0 pv.100000 --noformat logvol / --vgname=vol0 --name=lvol1 --useexisting --fstype=ext4 logvol /tmp --vgname=vol0 --name=lvol2 --useexisting --fstype=ext4 logvol swap --vgname=vol0 --name=lvol3 --useexisting logvol /data --vgname=vol0

Hello, Last night I upgraded a server to CentOS 5.2. The server has 16GB of RAM. Now that it's running 2.6.18-92.1.6.el5xen only 8GB is reported to exist. # cat /proc/meminfo MemTotal: 8818688 kB MemFree: 3730124 kB Buffers: 202004 kB Cached: 4086788 kB SwapCached: 0 kB Active: 1551480 kB Inactive: 2958196 kB HighTotal: 0 kB HighFree:

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Hi list, kernel-xen-2.6.18-53.1.14.el5 and kernel-xen-2.6.18-53.1.19.el5 do not detect/initialize/whatever my eth1 network card any more. With kernel-xen-2.6.18-53.1.13.el5 everything is working as expected. With the two recent kernels I only get an Interface named __tmp786686833 which is not added to xenbr... lspci -v to the adapter in question says 02:00.0 Ethernet controller: Intel

I have a couple Debian 6 HVM VMs. From what I''ve read, Debian 6''s standard kernels have pv_ops already enabled. I''d like to convert these to pv for the following reasons (Assuming both of are valid expectations): 1) so the VMs use pv for the NICs 2) so the VMs properly respond to shutdown/reboot commands from xm I''m having trouble converting them. I believe

to convert hvm to pv guest, I have followed the direction( link<http://pastebin.com/f6a5022bf>) in Xen-Users Common Questions Guide. It says the first step is "install kernel-xen with correct initrd" After "yum install kernel-xen" was executed, following errors were showed: WARNING: No module xen_vbd found for kernel 2.6.18-164.15.1.el5xen, continuing anyway grubby

I have a DomU running Windows 2003 server that occasionally blue screens (or at least I assume it does). Obviously, when it does, I lose the ability to open a VNC console. Is there some method for sending the windows console to another location that can be viewed if the system dies? Centos 5.2 2.6.18-92.1.6.el5xen kernel -- James D. Roman Sr. Network Administrator Science Systems and

Hello, I am running two dom0s, one on CentOS 5 with Xen 4.1.2 (from Gitco) and the other one on CentOS 6 with Xen 4.2.4 (from Xen4CentOS). I host one LVM based domU on both from the same template (CentOS 6 PV) with the same Xen config (see below). However, the domU on Xen 4.1 reports itself as Xen PV while the domU on Xen4CentOS reports itself as Xen HVM. == First domU == virt-what and cPanel

Hi, I use Centos 5.4 x86_64 kernel used is 2.6.18-164.11.1.el5xen I have a physical machine running Debian Etch (32 bit) and Debian Lenny and I virtualized the first one as follows: *Created a HVM DomU with Virt-Manager with a virtual disk file of 40000 M *Boot from LiveCD, and created a swap and a ext3 partitions (Yes, very simple layout). *Rsync''d files from root partition of

Hi folks, we are using a Tyan TK8W 2885 Mainboard (latest BIOS) w/ 2 Dual Core Opteron 280EE and 8GB of RAM (4GB per Socket). Furthermore we run CentOS 5.1 w/ Xen 3.2.1. (build from SRPM). We also tried 3.2.0. I tried both, the CentOS 5.1 Xen Kernel as well as the latest RHEL 5.2 Kernel but we do not get two NUMA domains as we (in my opinion) are supposed to. Do we need to recompile anything?

my server has intel q9550 cpu (which supports intel-vt) and intel s3200 motherboard. BIOS has enabled intel virtualisation. centos 5.4, 64bit [root@localhost ~]# uname -a Linux localhost.localdomain 2.6.18-164.el5xen #1 SMP Thu Sep 3 04:03:03 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux [root@localhost ~]# grep vmx /proc/cpuinfo flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36

Dear All, I am curently running a CENTOS server with the following setup CentOS release 5 (Final) Kernel 2.6.18-8.1.8.el5xen on an i686 bind-9.3.3-10.el5 sendmail-8.13.8-2.el5 apache httpd-2.2.3-11.el5_1.centos.3 MailScanner ver 4.66.5 ClamAV 0.92 SpamAssassin version 3.2.4 SquirrelMail ver 1.4.13 Now all this have been workin perfectly fine for a long time. now if i do a yum upgrade i see the

On the subject of kernel updates: I had my install kernel (2.6.18-8.el5xen) and 2.6.18-8.1.8.el5xen on the box. I was unable to originally boot the update (8.1.8xen) because of the 3ware driver issues (I needed to use a driver floppy at install time). I jumped through some hoops (which I am struggling to understand) with weak-updates to get the 2.6.18-8.1.8 kernel to see my raid devices, which