Florin Andrei wrote:
Brian J. Murrell wrote:
On Tue, 2009-09-29 at 14:21 -0700, Florin Andrei wrote:
I want to use VBox to test a distributed filesystem, but it won't
let me launch two virtual machines sharing the same virtual volume
(data volume, not root; root is separate). Is there a way around
this issue?
The last time I wanted to do this (to test Lustre, which also wants to
share block devices) I had to use the VMDK disk format as opposed to the
VDI format. I think there is documentation floating around on how to
make a VMDK shared.
Are you sure it was VirtualBox?
I had a .vmdk floating around, which I attached to both machines.
Booted one of them, could access the .vmdk just fine, launched fdisk,
deleted some partitions, all was good.
Then tried to launch the other machine, but it failed with "locked for
writing by another task". :-(
Googled for virtual volume sharing between machines, no luck.
I'm out of ideas (besides switching to VMware).
Why not ATA over Etheret :-) give a try . I think that performance
penalty will be minimal comparable to fully software (VMware) solution
,because Ethernet frames won't leave host computer . It may be only few
hundred CPU cycles slower than WMware :-)
Best Regards
Maciek Kaliszewski
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