[Xen-users] Physical disks + Software Raid + lvm in domU

[Francesco Polzella <f.polzella@xxxxxxxx>]

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 i/o tests are performed with bonnie++

This is the DomU configuration file:

#  -*- mode: python; -*-
kernel   = "/boot/vmlinuz-2.6.18-6-xen-amd64"
ramdisk  = "/boot/initrd.img-2.6.18-6-xen-amd64"
memory   = 256
name     = "apollo"
vif      = ['bridge=xenbr0']
disk     = 
['file:/datadisk/vmimages/apollo.img,hda1,w','file:/datadisk/vmimages/swap.img,hda2,w','phy:/dev/disk/by-id/scsi-SATA_WDC_WD5000AAKS-_WD-WCAS82710754,xvda,w','phy:/dev/disk/by-id/scsi-SATA_WDC_WD5000AAKS-_WD-WCAS82710669,xvdb,w']
ip       = "192.168.0.230"
netmask  = "255.255.255.0"
gateway  = "192.168.0.254"
hostname = "apollo"
root     = "/dev/hda1"
extra    = "4"

Is someone experiencing similar problems?

Regards,

Francesco








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