Hi there Hope, every one will be fine. I need an urgent help in ceph cluster design. We are planning 3 OSD node cluster in the beginning. Details are as under:
Servers: 3 * DELL R720xd OS Drives: 2 2.5" SSD OSD Drives: 10 3.5" SAS 7200rpm 3/4 TB Journal Drives: 2 SSD's Samsung 850 PRO 256GB each Raid controller: PERC H710 (512MB Cache) OSD Drives: On raid0 mode Journal Drives: JBOD Mode Rocks db: On same Journal drives My question is: is this setup good for a start? And critical question is: should we enable write back caching on controller for Journal drives? Pls suggest. Thanks in advance. Regards. Muhammad Junaid
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