bobokun Posted May 30, 2019 Share Posted May 30, 2019 Hi , I recently had a parity check which took a lot longer than usual. I ran a disk benchmark and found out that the drives for parity and disk4 are really slow but SMART reports seem to show that it's fine. Not sure what might be the cause of the slow parity check. It took almost double the amount of time as it normally does. Please see the attached diagnostics. unnas-diagnostics-20190530-1805.zip Quote Link to comment
JorgeB Posted May 30, 2019 Share Posted May 30, 2019 Post new diags grabbed during a parity check. Quote Link to comment
bobokun Posted June 10, 2019 Author Share Posted June 10, 2019 Here are new diags while performing parity check. I took these diags as it slowed down to 2.7MB/S unnas-diagnostics-20190610-1813.zip Quote Link to comment
JorgeB Posted June 11, 2019 Share Posted June 11, 2019 Nothing jumps out, I would run a sequential benchmark test on each disk with mhdd or hdtune on that or another system. Quote Link to comment
bobokun Posted June 11, 2019 Author Share Posted June 11, 2019 Are these all windows tools? Is there a way to run these using docker containers or plugins? Or should I run it in Windows VM. I've been using disk4 since before I installed my dell H310 and even with my dell H310 installed it was running fast, parity checks were fine. It's when I added two additional new drives (10TB x 2) is when the issues started happening. I'm wondering if there is an issue with my H310 controller since it is running 6 drives on it (2 SAS to sata cables, 4 sata connections on one and 2 on the other). Quote Link to comment
itimpi Posted June 11, 2019 Share Posted June 11, 2019 (edited) You could try installing the DiskSpeed docker container as an easy way of checking the drive speeds on Unraid. Edited June 11, 2019 by itimpi Quote Link to comment
JorgeB Posted June 11, 2019 Share Posted June 11, 2019 6 minutes ago, bobokun said: I'm wondering if there is an issue with my H310 controller Doubt it's that. 6 minutes ago, bobokun said: Are these all windows tools? hdtune is Windows, mhdd is Dos, for mhdd you could boot with a dos flash drive, though it will only work if the disk is on the onboard SATA port in IDE mode. Quote Link to comment
bobokun Posted June 15, 2019 Author Share Posted June 15, 2019 I ended up connecting more drives into my motherboard and fewer onto the Dell H310 card instead to see if that improves the results. Is this normal behavior for drives or do you still think there is issues with my Disk4/Parity? Quote Link to comment
Vr2Io Posted June 15, 2019 Share Posted June 15, 2019 (edited) 20 minutes ago, bobokun said: do you still think there is issues with my Disk4/Parity? Yes Edited June 15, 2019 by Benson Quote Link to comment
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