Re: [ceph-users] Using RBD with LVM

2013-09-25 Thread John-Paul Robinson
Thanks. After fixing the issue with the types entry in lvm.conf, I discovered the -vvv option which helped me detect a the second cause for the "ignored" error: pvcreate saw a partition signature and skipped the device. The -vvv is s good flag. :) ~jpr On 09/25/2013 01:52 AM, Wido den Hollander

Re: [ceph-users] Using RBD with LVM

2013-09-25 Thread John-Paul Robinson
Thanks. This fixed the problem. BTW, after adding this line I still got the same error on my pvcreate but then I ran pvcreate -vvv and found that it was ignorning my /dev/rbd1 device because it had detected a partition signature (which I had added in an earlier attempt to work around this "ignore

Re: [ceph-users] Using RBD with LVM

2013-09-24 Thread Wido den Hollander
On 09/25/2013 02:00 AM, John-Paul Robinson wrote: Hi, I'm exploring a configuration with multiple Ceph block devices used with LVM. The goal is to provide a way to grow and shrink my file systems while they are on line. I've created three block devices: $ sudo ./ceph-ls | grep home jpr-home-

Re: [ceph-users] Using RBD with LVM

2013-09-24 Thread Mandell Degerness
You need to add a line to /etc/lvm/lvm.conf: types = [ "rbd", 1024 ] It should be in the "devices" section of the file. On Tue, Sep 24, 2013 at 5:00 PM, John-Paul Robinson wrote: > Hi, > > I'm exploring a configuration with multiple Ceph block devices used with > LVM. The goal is to provide a

[ceph-users] Using RBD with LVM

2013-09-24 Thread John-Paul Robinson
Hi, I'm exploring a configuration with multiple Ceph block devices used with LVM. The goal is to provide a way to grow and shrink my file systems while they are on line. I've created three block devices: $ sudo ./ceph-ls | grep home jpr-home-lvm-p01: 102400 MB jpr-home-lvm-p02: 102400 MB jpr-h