[Xen-users] One Disk, multiple DomUs and Linux Swap

["Reinhard Brandstaedter" <Reinhard.Brandstaedter@xxxxxx>]

Hi,

If I use one logical volume (with complete partition layout) as a
read-only disk for multiple DomUs it works fine and I can start as many
DomUs as I want, as long they don't write to the filesystems on that
disk.

But what is if this logical volume contains a swap partition? The swap
partition is also shared between multiple DomUs and needs to be
writeable. So it can't be a partition on the logical volume.

This setup won't work for multiple DomUs then, right?
name = "test-%d" %vmid
memory = "128"
disk = [ 'phy:/dev/vm/test-root,xvda,r']
vif = [ 'mac=00:16:3e:29:ef:a8, bridge=xenbr0', ]
nographic=1
bootloader="/usr/bin/pygrub"
vcpus=1

I'd have to specify an extra disk device for each DomU which contains
the swap partition, right?
like 'phy:/dev/vm/test-swap-%d,xvda,r' %vmid

Thanks,
Reinhard





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