Oh - try stracing the pvcreate and see what happens.

On Thu, Mar 1, 2012 at 10:03 PM, Kent Overstreet
[off-list ref] wrote:

Weird.

Did the /dev/bcache0 device get create created by udev?

It's possible my code isn't poking the right thing. *mutters about the
block layer...*

On Thu, Mar 1, 2012 at 9:49 PM, Joseph Glanville
[off-list ref] wrote:

quoted

Hi,

I can't use bcache devices as members of lvm volume groups because
dmsetup can't find the devices.
It provides the ever useful feedback of:
# pvcreate /dev/bcache0
  Device /dev/bcache0 not found (or ignored by filtering).

My LVM.conf is only filtering out nbd devices:
filter = [ "r|/dev/nbd.*|", "a/.*/" ]

Any insight would be greatly appreciated. :)

I also noted that bcache devices don't appear in iostat..

Joseph.

--
Founder | Director | VP Research
Orion Virtualisation Solutions | www.orionvm.com.au | Phone: 1300 56
99 52 | Mobile: 0428 754 846


--
Founder | Director | VP Research
Orion Virtualisation Solutions | www.orionvm.com.au | Phone: 1300 56
99 52 | Mobile: 0428 754 846
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