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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