Hey guys,
I have a 6x14TB Z2 array that is painfully slow with sync=always.
I have a couple of surplus drives lying around that I feel could be put to better use. Which of these drives would be the best choice as a SLOG and why?
1. MZ1LV960HCJH-000MU Samsung PM953 960GB M.2 PCIe NVMe (TLC) 1.3DWPD, Unknown Endurance
2. HUSSL4040BSS600 HGST Hitachi 400GB SSD SAS 6Gbps (SLC) ~35PB Write Endurance
3. HUSMM1640ASS201 HGST Hitachi 400GB SSD SAS 12Gbps (MLC) ~7PB Write Endurance
I believe the Samsung has PLP capacitors while the HGSTs have "power loss data management algorithm".
Endurance wise I believe the HGSTs blow the Samsung out the window.
Latency wise the NVMe should be a clear winner over SAS.
Cost wise the HGSTs are slightly cheaper than the Samsung.
Thanks!
I have a 6x14TB Z2 array that is painfully slow with sync=always.
I have a couple of surplus drives lying around that I feel could be put to better use. Which of these drives would be the best choice as a SLOG and why?
1. MZ1LV960HCJH-000MU Samsung PM953 960GB M.2 PCIe NVMe (TLC) 1.3DWPD, Unknown Endurance
2. HUSSL4040BSS600 HGST Hitachi 400GB SSD SAS 6Gbps (SLC) ~35PB Write Endurance
3. HUSMM1640ASS201 HGST Hitachi 400GB SSD SAS 12Gbps (MLC) ~7PB Write Endurance
I believe the Samsung has PLP capacitors while the HGSTs have "power loss data management algorithm".
Endurance wise I believe the HGSTs blow the Samsung out the window.
Latency wise the NVMe should be a clear winner over SAS.
Cost wise the HGSTs are slightly cheaper than the Samsung.
Thanks!