06-01-2019, 05:42 PM
Hello Nikolay,
I have done some bad soldering attempt. It was hard to get the solder out of the holes and i damaged a few o rings, detached from pcb. I also couldn't find wire cutters and i sanded a bit with a file at the rear. My soldering is probably worse than jumpers, hard to tell without any tools.
Please see pictures attached and dmesg log. Dmesg log is after successful reboot with limiting one port to sata 3, probably bad soldering as other one is not doing that.
I turned on while hdd cage was outside the case and the same issue, after reboot hard drives came back. The only difference i saw led flashing only once during startup on sata controller board where before i saw at least 3-4 quick flashes when hdds were not listed. So probably i made it even worse now but anyhow i need to get another one to rule it out.
Once hard drives are recognized i am only getting 63 MB/s when copying from one drive to another with "rsync --progress" command, same as before. I am also getting slow speed when copying from cifs share 18 MB/s, but when copying from cifs to sd card i get 30MB/s. I used hdparm -t --direct /dev/sda1 and got 179 MB/s and 180MB/s for /dev/sdb1.
Do you think below is a good choice to go for, i will only have 2 drives and would like write speeds between drives to be around 100 MB/s. As below is pcie version 1 link throughput is 250 MB/s so should be probably getting something close to 100 MB/s.
https://www.ebay.ie/itm/Controller-Pcie-...Sw5cNYSZAr
I placed hdd case inside the case with ground wire connected to cable coming out of ground pin on pcb. But couldn't reproduce it yet. I will find out tomorrow as previously leaving it for longer not connected to electricity triggered it for sure.
I haven't connected ground wire from pcb directly to case, i had this wire attached before to pcie card but now i placed it between pcb and mounting bolt below pcie card.
I have done some bad soldering attempt. It was hard to get the solder out of the holes and i damaged a few o rings, detached from pcb. I also couldn't find wire cutters and i sanded a bit with a file at the rear. My soldering is probably worse than jumpers, hard to tell without any tools.
Please see pictures attached and dmesg log. Dmesg log is after successful reboot with limiting one port to sata 3, probably bad soldering as other one is not doing that.
I turned on while hdd cage was outside the case and the same issue, after reboot hard drives came back. The only difference i saw led flashing only once during startup on sata controller board where before i saw at least 3-4 quick flashes when hdds were not listed. So probably i made it even worse now but anyhow i need to get another one to rule it out.
Once hard drives are recognized i am only getting 63 MB/s when copying from one drive to another with "rsync --progress" command, same as before. I am also getting slow speed when copying from cifs share 18 MB/s, but when copying from cifs to sd card i get 30MB/s. I used hdparm -t --direct /dev/sda1 and got 179 MB/s and 180MB/s for /dev/sdb1.
Do you think below is a good choice to go for, i will only have 2 drives and would like write speeds between drives to be around 100 MB/s. As below is pcie version 1 link throughput is 250 MB/s so should be probably getting something close to 100 MB/s.
https://www.ebay.ie/itm/Controller-Pcie-...Sw5cNYSZAr
I placed hdd case inside the case with ground wire connected to cable coming out of ground pin on pcb. But couldn't reproduce it yet. I will find out tomorrow as previously leaving it for longer not connected to electricity triggered it for sure.
I haven't connected ground wire from pcb directly to case, i had this wire attached before to pcie card but now i placed it between pcb and mounting bolt below pcie card.