similar to: Software RAID in DomU - does it work?

Hi, I''m trying to setup my box as described below: - The Dom0 exports two disks as physical devices to the DomU - DomU use the two devices to assemble a software raid device (/dev/md0) - On the /dev/md0 I create a lvm volume group and lvm volumes on it. Everything seems to work fine if the lvm volumes on the DomU are lightly used. Under heavy load the DomU freeze up immediately. The

Hi, I have a running LVM-DRBD-Xen-HVM/Win2k3 cluster-stack under debian/ lenny managed by heartbeat/crm. At takeover/failover heartbeat first is stopping my HVM-domU with success apparently: -------------- corresponding heartbeat log line ----------------- greatmama-n2 lrmd: [3382]: info: RA output: (xendom_infra_win:stop:stdout) Domain infra-win2003sbs terminated All domains terminated

Hi I''ve recently setup CentOS 5.1 x64, with a Windows 2003 Web x64 domU and assigned 1 CPU & 1GB RAM to it. Today, which installing something in Windows, I notice that it takes ages to install a program. Running xm top, it doesn''t seem like it''s running out of RAM or CPU, and checking Windows Task Manager, I can see it consumes only 2 - 6% CPU, and 127MB RAM in

Hello fellow xenophiles and happy new year! I''ve documented the install procedure for a prototype server here since I found no similar document Anywhere on the net. It''s a Sarge-based Domain0 on linux root raid from scratch, using LVM to store the data for the domU mail server and its mailstore. I humbly submit my notes in the hope that they are useful to some weary traveller.

Dear All. I have set up a Xen testbed on a computer.(Dom0 use debian lenny) I would like to know the possible ways to monitor the network traffic of DomU''s from Dom0. # command ''xentop'' display NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) VBDS VBD_OO VBD_RD VBD_WR SSID debianlenny --b--- 14 0.0 270204 25.8 278528 26.6 1 0 0

Package: xen-utils-4.0 Version: 4.0.1-5.2 After clean upgrade from Lenny I got xend highly use CPU resources causing domU don't being created - due to timeouts for vifs and vbds (mostly CPU Steal Time was increasing - no iowaits). Tried Xen boot options acpi=noirq|ht without success. Option acpi=off solved that issue, but performance of the server was horrible. The final workaround was to

Hi, I am currently making some i/o performance tests within domUs with iozone3. One scenario is a domU with file-backed VBDs (root and swap) as sda1 and sda2 lying on an nfs-kernel-server (2.6.14.4 - Debian Sarge). The exact iozone command is: iozone -a -R -b result.xls -f /tmp/iozone.test -n 1m -g 256m -i 0 -i 1 As soon as the iozone-test comes to a filesize of 132M, the complete! system

I tried netperf / netserver with Dom0 / DomU, but I could''nt get a correct NW traffic with xentop. Is there anybody could help me? At Host1''s Dom0, run netperf -H VMIP At Host2''s DomU (with VMIP named TTVM), run netserver At Host1, run xentop this way ->"xentop -n -b -d 1" At Host2, run xentop this way->"xentop -n -b -d 1" In Host2''s

Hi *, when I try to start this config kernel = "/boot/vmlinuz-2.6.11-xenU" memory = 128 name = "Virtual1" vif = [ ''mac=aa:00:00:00:00:11, bridge=xen-br0'' ] disk = [ ''phy:vg00/domu01_lv,sda1,w'' ] root = "/dev/sda1 ro" extra = "4" I get this errors in xend.log (tried two times): [2005-05-23 13:37:22 xend] INFO

Hi, to make transitions more convenient, I've done this by using uuid instead of device names. If you ls -l /dev/disk/by-uuid inside your domU, you'll see something like lrwxrwxrwx 1 root root 10 5. Mai 07:38 39a2a64b-0716-47ad-92f4-a7437cac54ee -> ../../sda2 lrwxrwxrwx 1 root root 10 5. Mai 07:38 e8b97b59-a790-417c-8231-fe8da8b6e6ee -> ../../sda1 In /etc/fstab inside the domU,

Hullo Everybody ; I am failing to start my new VM and it tells me unkown bootloader . Below are my parameters and output . Could somebody be having an idea of putting right this problem? [root@virtualintranet /]# xe vm-param-list uuid=70645ba3-bcbc-683b-099e-ed197301fcc2 uuid ( RO) : 70645ba3-bcbc-683b-099e-ed197301fcc2 name-label ( RW): PVG1

Hi people, I am building a cheap remote rsync backup server using a software raid 5 array of 4 500GB disks. What I have available on the market is: 1. HITACHI GST Deskstar T7K500 500GB 7200rpm 16MB cache Serial ATA II-300 2. SEAGATE Barracuda 7200.10 with NCQ 500GB 7200rpm 16MB cache Serial ATA II-300 3. Western Digital 500GB SATAII RAID EDITION Caviar SE16 7200rpm 8.9ms 16MB cache I am

Hi all, When I ran the experiments to compare an application''s execution time in both a domU (named cctest1) and a native Linux machine (named ccn10), I noticed the application executes faster in domU. The host of the domU (named ccn9) and ccn10 are two nodes of a cluster and they have same hardware configurations. domU (cctest1) is created by exporting loopback files from dom0 on

Is there a reason why after a software raid install (from kickstart) that md1 is always unclean. md0 seems fine. boot screen says md1 is dirty and cat /proc/mdstat show md1 as being rebuilt. Any ideas? Jerry --------------- my kickstart -------------- echo "bootloader --location=mbr --driveorder=$HD1SHORT --append=\"rhgb quiet\" " >

This is what I have for configuring software raid on sata drives in my kickstart config <snip kickstart.cfg> clearpart --initlabel --all part swap --size=2048 --ondisk=sdb part swap --size=2048 --ondisk=sda part raid.01 --size=101 --ondisk=sda part raid.02 --size=101 --ondisk=sdb part raid.04 --size=1 --grow --ondisk=sdb part raid.03 --size=1 --grow --ondisk=sda raid / --fstype ext3

I have a Dell PowerEdge 2950 with 6 SAS disks and a PERC 5/i controller what won't do RAID 6. I plan to have 2 drives as RAID 1 for the OS, and the remaining 4 as RAID 6. Granted the PERC can do RAID 1, I'm tempted to do everything via software RAID. Thus, if anything goes wrong with the controller, I just need to obtain a new SAS controller and I'm back up. I learned my lesson

Setting: We are setting up a low usage server for an alfresco km/collaboration system It is a low-end server with a pair of 1.5 TB disks we will be mirroring The server comes with Intel's on-board 'fake raid/ low-end RAID' capability and for price reasons we have not selected a mainstream RAID card Prior thoughts: Searches on the net indicate no performance advantage, and possible

All this talk about SATA RAID in the past few days made me wonder... about possibly using software RAID, or at least trying it on my own workstations and eventually production servers, after I learn more about it. So, I started googling for tutorials and manuals, and there are usually two kinds I can find: 1. very basic "what is software RAID", or 2. complete 400+ page books on the

Dear All, I'm trying to install Centos 4.2 x86_64 on a new Opteron server, using a software raid 1 boot partition. Here is the appropriate section of my kickstart.cfg #System bootloader configuration bootloader --location=mbr #Clear the Master Boot Record zerombr yes #Partition clearing information clearpart --all --initlabel #Disk partitioning information part raid.01 --size 50000

Hi all, When I ran the experiments to compare an application''s execution time in both a domU (named cctest1) and a native Linux machine (named ccn10), I noticed the application executes faster in domU. The host of the domU (named ccn9) and ccn10 are two nodes of a cluster and they have same hardware configurations. domU (cctest1) is created by exporting loopback files from dom0 on