[DRBD-user] DRBD on Encrypted FS

Noah Mehl noah at tritonlimited.com
Thu Oct 6 01:57:16 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


I would suggest creating a drbd resource, and then using that as the backing for an encrypted PV.  Is that what you're trying to do?


On Oct 5, 2011, at 6:24 PM, Bill Asher wrote:

> Today I did a little test to see if I could configure DRBD on encrypted LVs and what I found is it didn't work for me... Because the servers are located in a colo, security for the servers is the main reasoning.
> All seems to go good until I tell DRBD to mirror filerA logical volume(/dev/vg/data) to filerB LV (/dev/vg/data).  I then received errors on the console like this, over and over:
> "Block drbd0: open("/dev/vg/data") failed with -16"
> I then rebooted to Ubuntu CD to look at the LVs and.. they were all gone. The only thing the partitioner sees is the two partitions I created, one for /boot the other for logical volumes, but all my lvm tables were gone.  I was able to repeat this issue on both my filers.
> So my question is..
> a) can this even be done, encrypting the filesystem then configureing DRBD
> b) if encryption can be done, is my approach wrong?
> Thank you in advance for your time.
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