Re: [one-users] ceph+flashcache datastore driver

2014-03-27 Thread Shankhadeep Shome
We have been running KVM very successfully and I find ceph very interesting, I think a combination of ceph and linux scsi target with a scale out architecture is the future of storage in enterprise. On Thu, Mar 27, 2014 at 10:57 PM, Shankhadeep Shome wrote: > Yes bcache will allow real time conf

Re: [one-users] ceph+flashcache datastore driver

2014-03-27 Thread Shankhadeep Shome
Yes bcache will allow real time configuration of cache policies, there are a lot of tunables. It allows a single cache device to map to multiple backing devices. We are using bcache with LVM and linux scsi target to implement the storage target devices. We use several of these devices to export blo

Re: [one-users] ceph+flashcache datastore driver

2014-03-26 Thread Stuart Longland
Hi Shankhadeep, On 26/03/14 12:35, Shankhadeep Shome wrote: > Try bcache as a flash backend, I feel its more flexible as a caching > tier and its well integrated into the kernel. The kernel 3.10.X version > is now quite mature so an epel6 long term kernel would work great. We > are using it in a li

Re: [one-users] ceph+flashcache datastore driver

2014-03-25 Thread Shankhadeep Shome
Try bcache as a flash backend, I feel its more flexible as a caching tier and its well integrated into the kernel. The kernel 3.10.X version is now quite mature so an epel6 long term kernel would work great. We are using it in a linux based production SAN as a cache tier with pci-e SSDs, a very fle

Re: [one-users] ceph+flashcache datastore driver

2014-03-25 Thread Stuart Longland
On 24/03/14 17:57, Stuart Longland wrote: > Well, I'm starting to have a stab at creating a driver to do local > caching on hosts for RBD storage. > > For those who want to follow progress, I've thrown a repository up here: > http://git.longlandclan.yi.org/?p=opennebula-ceph-flashcache.git;a=summa

[one-users] ceph+flashcache datastore driver

2014-03-24 Thread Stuart Longland
Hi all, Well, I'm starting to have a stab at creating a driver to do local caching on hosts for RBD storage. For those who want to follow progress, I've thrown a repository up here: http://git.longlandclan.yi.org/?p=opennebula-ceph-flashcache.git;a=summary At time of writing, none of this has be