Re: Supermicro server 5019D8-TR12P for new Ceph cluster

Michal Zacek <zacekm@xxxxxxxxxx> · Tue, 13 Nov 2018 15:11:51 +0100



    Hi,

    
    The server support up to 128GB RAM, so upgrade RAM will not be
    problem. The storage will be used for storing data from a
    microscopes. Users will download data from the storage to local PC,
    make some changes and then will upload data back to the storage. We
    want use the cluster for direct computing in the future, but now we
    only need separate data from the microscopes from normal office
    data. We are expecting up to 10TB upload/download per day.

    
    Michal
    Dne 13. 11. 18 v 14:50 Ashley Merrick
      napsal(a):

    
        Not sure about CPU, but I would definitely
          suggest more than 64GB of ram.
        

        With the next release of Mimic the default memory will be
          set to 4GB per a OSD (if I am correct), this only includes the
          bluestore layer, so id easily expect to see you getting close
          to 64GB after OS cache's e.t.c, and the last thing you want on
          a CEPH OSD box is a OOM.
        

        Are you looking at near to cold storage for these photos?
          Or is it storage for designers working out of programs which
          require low latency and quick performance?
      
      
        On Tue, Nov 13, 2018 at 9:43 PM Michal Zacek <zacekm@xxxxxxxxxx>
          wrote:

        
            Hello,
            what do you think about this Supermicro server: http://www.supermicro.com/products/system/1U/5019/SSG-5019D8-TR12P.cfm
              ? We are considering about eight or ten server each with
              twelve 10TB SATA drives, one m.2 SSD and 64GB RAM. Public
              and cluster network will be 10Gbit/s. The question is if
              one Intel XEON D-2146NT wit eight cores
              (16 with HT) will be enough for 12 SAT disks. Cluster will
              be used for storing pictures. File size from 1MB to 2TB
              ;-). 

            
            Thanks,

              Michal

            
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