Re: [ceph-users] bcache, dm-cache support

2018-10-10 Thread Maged Mokhtar
On 10/10/18 21:08, Ilya Dryomov wrote: On Wed, Oct 10, 2018 at 8:48 PM Kjetil Joergensen wrote: Hi, We tested bcache, dm-cache/lvmcache, and one more which name eludes me with PCIe NVME on top of large spinning rust drives behind a SAS3 expander - and decided this were not for us. This w

Re: [ceph-users] bcache, dm-cache support

2018-10-10 Thread Ilya Dryomov
On Wed, Oct 10, 2018 at 8:48 PM Kjetil Joergensen wrote: > > Hi, > > We tested bcache, dm-cache/lvmcache, and one more which name eludes me with > PCIe NVME on top of large spinning rust drives behind a SAS3 expander - and > decided this were not for us. > > This was probably jewel with filestor

Re: [ceph-users] bcache, dm-cache support

2018-10-10 Thread Kjetil Joergensen
Hi, We tested bcache, dm-cache/lvmcache, and one more which name eludes me with PCIe NVME on top of large spinning rust drives behind a SAS3 expander - and decided this were not for us. This was probably jewel with filestore, and our primary reason for trying to go down this path were that leveld

[ceph-users] bcache, dm-cache support

2018-10-04 Thread Maged Mokhtar
Hello all, Do  bcache and dm-cache work well with Ceph ? Is one recommended on the other ? Are there any issues ? There are a few posts in this list around them, but i could not determine if they are ready for mainstream use or not Appreciate any clarifications.  /Maged _