27.01.2016 13:29, Stanislav Kinsburskiу пишет:
27 янв. 2016 г. 11:12 AM пользователь Evgenii Shatokhin
<eshatok...@virtuozzo.com> написал:
Hi,
Is there a way to make a partition of a physical HDD, say, sdb1 directly
available to a container, bypassing ploop?
Hi,
There is a way of exposing a device to a container.
First of all, you'll need device node in /dev.
You can create it manually.
I created it with
vzctl set 101 --devnodes sdb1:rw --save
The node is now present in the CT. However, if I try to mount it in the
CT (mount /dev/sdb1 /mnt), no error is reported but mount seems to have
no effect. No files are seen in /mnt that are present on that partition.
So, I guess, additional steps are needed?
If you need sysfs layout for this, it's also possible (but a bit more tricky).
Please, note, that device access will be shared with the host. IOW, it's not
bypassing, but sharing of a device and you can share it with as many virtual
environments as you want.
That is OK. I just need to compare the behaviour of the CT when
accessing the FS on a "real" partition and on a ploop device.
In my case, this is only needed to simplify debugging of some issues.
'prlctl --device-add hdd <...>' adds a ploop device anyway, it seems.
Regards,
Evgenii
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