Hi Vitaliy, The drive is a Micron 5200 ECO 3.84TB This is from the msecli utility: Device Name : /dev/sde Model No : Micron_5200_MTFDDAK3T8TDC Serial No : <redacted> FW-Rev : D1MU404 Total Size : 3840.00GB Drive Status : Drive is in good health Sata Link Speed : Gen3 (6.0 Gbps) Sata Link Max Speed : Gen3 (6.0 Gbps) Temp(C) : 26 The server motherboard is: SuperMicro X10DRU-i+ Drives are connected to SATA connectors on the motherboard. Processors are: Xeon E5-2690v4 Eric From: Виталий Филиппов [mailto:vitalif@xxxxxxxxxx] Sent: Tuesday, January 21, 2020 3:43 PM To: Eric K. Miller Cc: ceph-users@xxxxxxxxxxxxxx Subject: RE: low io with enterprise SSDs ceph luminous - can we expect more? [klartext] Hi! Thanks. The parameter gets reset when you reconnect the SSD so in fact it requires not to power cycle it after changing the parameter :-) Ok, this case seems lucky, ~2x change isn't a lot. Can you tell the exact model and capacity of this Micron, and what controller was used in this test? I'll add it to the spreadsheet. -- With best regards, Vitaliy Filippov _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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