Re: [ceph-users] HDD-only performance, how far can it be sped up ?

2018-06-28 Thread Horace
" , "ceph-users" Sent: Wednesday, June 20, 2018 4:17:29 PM Subject: Re: [ceph-users] HDD-only performance, how far can it be sped up ? Hi Wladimir, A combination of slow enough clock speed , erasure code, single node and SATA spinners is probably going to lead to not a really

Re: [ceph-users] HDD-only performance, how far can it be sped up ?

2018-06-20 Thread Brian :
Hi Wladimir, A combination of slow enough clock speed , erasure code, single node and SATA spinners is probably going to lead to not a really great evaluation. Some of the experts will chime in here with answers to your specific questions I"m sure but this test really isn't ever going to give grea

[ceph-users] HDD-only performance, how far can it be sped up ?

2018-06-20 Thread Wladimir Mutel
Dear all, I set up a minimal 1-node Ceph cluster to evaluate its performance. We tried to save as much as possible on the hardware, so now the box has Asus P10S-M WS motherboard, Xeon E3-1235L v5 CPU, 64 GB DDR4 ECC RAM and 8x3TB HDDs (WD30EFRX) connected to on-board SATA ports. Also w