On Fri, 30 Aug 2019 16:25:40 -0500 Erick Perez - Quadrian Enterprises <eperez at quadrianweb.com> wrote: > I managed to get NFS statistics just before server rebooted. > I can reproduce this every time. > Question: Am I saturating the SATA bus on the NFS server so violently > with the SSDs that the server hard reboots? > Perhaps due to the RAID 6 nature of operations? > > > Server info > AMD EPYC 7281 16CORE > 32 GIG RAM > 6xSATA3 SSD 1.9TB in mdadm RAID6 > OS: Centos 7.6 > SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA > Controller [AHCI mode] (rev 51) > [...] First I'd replace the network card, preferably with something like an Intel e1000. Perhaps use a dedicated network card for the server itself and another card for the KVM clients.