vspeed

In my case it's not the PSU... some smd board component references would be nice for troubleshooting. Can someone tell me which component is the one pointed by the green arrow and measure the voltages in the coils pointed by the red arrows? https://imgur.com/a/RBmaTd8 Thank you.

The board was up and running when suddenly I could not access the share anymore. I went near it and I was hearing some HDD clicking. I rebooted it from the console and when it came on, no storage was available. I could see some /dev/sd* but one HDD was missing from it and the lvm was not available anymore. Also all the HDDs where clicking and I was hearing a loud buzzing sound from the board. I rebooted it again, measured the PSU and even load tested it and it is fine, the same for the moled connectors, it was measuring 12V and 5V, but the truth was, the HDDs this time were not even detected. Took it all apart and booted it without any HDD connected and surprise, it no longer boots. It's missing now the 5V from the molex. What is the reference for the small IC responsible for creating the 5V for the HDDs? does it has any impact in the board booting? or was the CPU board killed somehow in the process? I measured the two coils near the CPU module and i see there 5V and 3.3V I tested all the HDDs in a pc bbefore measuring voltages, and all of them are fine. Thank you. .

Hi, Not sure I should ask this kind of question here, but here it goes: THe question is how to grow a RAID5 after replacing 4x2TB with 4x4TB I replaced each disk one by one and hit recover each time a disk was replaced. I have access to all the files. After that I used the command "mdadm --grow /dev/md127 --size=max" to grow the size. I'ts now showing 10.92TiB in Raid Management but it didn't reshape or grew the partitions/filesystems. If I hit resize in File Systems for one partition, nothing happens. I have two partitions: /dev/dm-0 /dev/dm-1 ignore /dev/sde1, it's an external usb HDD. Any advice? how can I resize the partition without loosing data? Thank you.