Re: [ceph-users] CEPH I/O Performance with OpenStack

2015-01-27 Thread Robert van Leeuwen
> Thanks Robert for your response. I'm considering giving SAS 600G 15K a try > before moving to SSD. It should give ~175 IOPS per disk. > Do you think the performance will be better if i goes with the following > setup ? > 4x OSD nodes > 2x SSD - RAID 1 for OS and Journal > 10x 600G SAS 15K - NO

Re: [ceph-users] CEPH I/O Performance with OpenStack

2015-01-27 Thread Ramy Allam
Thanks Robert for your response. I'm considering giving SAS 600G 15K a try before moving to SSD. It should give ~175 IOPS per disk. Do you think the performance will be better if i goes with the following setup ? 4x OSD nodes 2x SSD - RAID 1 for OS and Journal 10x 600G SAS 15K - NO Raid Two Replic

Re: [ceph-users] CEPH I/O Performance with OpenStack

2015-01-27 Thread Robert van Leeuwen
> I have two ceph nodes with the following specifications > 2x CEPH - OSD - 2 Replication factor > Model : SuperMicro X8DT3 > CPU : Dual intel E5620 > RAM : 32G > HDD : 2x 480GB SSD RAID-1 ( OS and Journal ) > 22x 4TB SATA RAID-10 ( OSD ) > > 3x Controllers - CEPH Monitor > Model : ProLi

[ceph-users] CEPH I/O Performance with OpenStack

2015-01-27 Thread Ramy Allam
Hello, I'm using ceph-0.80.7 with Mirantis OpenStack IceHouse - RBD for nova ephemeral disk and glance. I have two ceph nodes with the following specifications 2x CEPH - OSD - 2 Replication factor Model : SuperMicro X8DT3 CPU : Dual intel E5620 RAM : 32G HDD : 2x 480GB SSD RAID-1 ( OS and Journal