Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Konstantin Shalygin
I have lots of Samsung 850 EVO but they are consumer, Do you think consume drive should be good for journal? No. Since the fall of 2017purchase of Intel P3700 is not difficult, you should buy it if you can. k ___ ceph-users mailing list

Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Satish Patel
I am planning to use Intel 3700 (200GB) for journal and 500GB Samsung 850 EVO for OSD, do you think this design make sense? On Tue, Jul 10, 2018 at 3:04 PM, Simon Ironside wrote: > > On 10/07/18 19:32, Robert Stanford wrote: >> >> >> Do the recommendations apply to both data and journal SSDs

Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Simon Ironside
On 10/07/18 19:32, Robert Stanford wrote:  Do the recommendations apply to both data and journal SSDs equally? Search the list for "Many concurrent drive failures - How do I activate pgs?" to read about the Intel DC S4600 failure story. The OP had several 2TB models of these fail when

Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Simon Ironside
On 10/07/18 18:59, Satish Patel wrote: Thanks, I would also like to know about Intel SSD 3700 (Intel SSD SC 3700 Series SSDSC2BA400G3P), price also looking promising, Do you have opinion on it? I can't quite tell from Google what exactly that is. If it's the Intel DC S3700 then I believe

Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Robert Stanford
Do the recommendations apply to both data and journal SSDs equally? On Tue, Jul 10, 2018 at 12:59 PM, Satish Patel wrote: > On Tue, Jul 10, 2018 at 11:51 AM, Simon Ironside > wrote: > > Hi, > > > > On 10/07/18 16:25, Satish Patel wrote: > >> > >> Folks, > >> > >> I am in middle or ordering

Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Satish Patel
On Tue, Jul 10, 2018 at 11:51 AM, Simon Ironside wrote: > Hi, > > On 10/07/18 16:25, Satish Patel wrote: >> >> Folks, >> >> I am in middle or ordering hardware for my Ceph cluster, so need some >> recommendation from communities. >> >> - What company/Vendor SSD is good ? > > > Samsung SM863a is

Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Simon Ironside
Hi, On 10/07/18 16:25, Satish Patel wrote: Folks, I am in middle or ordering hardware for my Ceph cluster, so need some recommendation from communities. - What company/Vendor SSD is good ? Samsung SM863a is the current favourite I believe. The Intel DC S4600 is one to specifically avoid at

Re: [ceph-users] Journel SSD recommendation

2018-07-10 Thread Anton Aleksandrov
I think you will get some useful information from this link: https://www.sebastien-han.fr/blog/2014/10/10/ceph-how-to-test-if-your-ssd-is-suitable-as-a-journal-device/ Even though it is dated 2014 - you can get approximate direction. Anton On 10.07.2018 18:25, Satish Patel wrote: Folks, I

[ceph-users] Journel SSD recommendation

2018-07-10 Thread Satish Patel
Folks, I am in middle or ordering hardware for my Ceph cluster, so need some recommendation from communities. - What company/Vendor SSD is good ? - What size should be good for Journal (for BlueStore) I have lots of Samsung 850 EVO but they are consumer, Do you think consume drive should be