Re: [ceph-users] Ceph, SSD, and NVMe

2015-10-02 Thread Robin H. Johnson
On Thu, Oct 01, 2015 at 10:01:03PM -0400, J David wrote: > So, do medium-sized IT organizations (i.e. those without the resources > to have a Ceph developer on staff) run Hammer-based deployments in > production successfully? I'm not sure if I count, given that I'm now working at DreamHost as the i

Re: [ceph-users] Ceph, SSD, and NVMe

2015-10-02 Thread Warren Wang - ISD
ead/write the performance numbers would >>be ~6/7 X slower. >> So, it is very much dependent on your workload/application access >>pattern and obviously the cost you are willing to spend. >> >> Thanks & Regards >> Somnath >> >> -Original Message---

Re: [ceph-users] Ceph, SSD, and NVMe

2015-10-01 Thread J David
Thanks & Regards > Somnath > > -Original Message- > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of Mark > Nelson > Sent: Wednesday, September 30, 2015 12:04 PM > To: ceph-users@lists.ceph.com > Subject: Re: [ceph-users] Ceph, SSD, and NVMe

Re: [ceph-users] Ceph, SSD, and NVMe

2015-09-30 Thread Somnath Roy
son Sent: Wednesday, September 30, 2015 12:04 PM To: ceph-users@lists.ceph.com Subject: Re: [ceph-users] Ceph, SSD, and NVMe On 09/30/2015 09:34 AM, J David wrote: > Because we have a good thing going, our Ceph clusters are still > running Firefly on all of our clusters including our largest, al

Re: [ceph-users] Ceph, SSD, and NVMe

2015-09-30 Thread Mark Nelson
On 09/30/2015 09:34 AM, J David wrote: Because we have a good thing going, our Ceph clusters are still running Firefly on all of our clusters including our largest, all-SSD cluster. If I understand right, newer versions of Ceph make much better use of SSDs and give overall much higher performanc

Re: [ceph-users] Ceph, SSD, and NVMe

2015-09-30 Thread Matt W. Benjamin
1-2809.html > > Regards, > James > > -Original Message- > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf > Of J David > Sent: Wednesday, September 30, 2015 7:35 AM > To: ceph-users@lists.ceph.com > Subject: [ceph-users] Ceph, SSD, and N

Re: [ceph-users] Ceph, SSD, and NVMe

2015-09-30 Thread James (Fei) Liu-SSI
015 7:35 AM To: ceph-users@lists.ceph.com Subject: [ceph-users] Ceph, SSD, and NVMe Because we have a good thing going, our Ceph clusters are still running Firefly on all of our clusters including our largest, all-SSD cluster. If I understand right, newer versions of Ceph make much better use of

[ceph-users] Ceph, SSD, and NVMe

2015-09-30 Thread J David
Because we have a good thing going, our Ceph clusters are still running Firefly on all of our clusters including our largest, all-SSD cluster. If I understand right, newer versions of Ceph make much better use of SSDs and give overall much higher performance on the same equipment. However, the imp