hello,

ive bought a new 3tb disk for my array, pre-cleared it before adding. smart is good.

after 2 days - the disk has been disabled.. i replaced the sata+power cables, changed the sata connector on the board, new config - and it worked good for about a month.. now its been disabled again.

 

i tried to clear it again with preclear - and i get this error:

SORRY: Disk /dev/sdd MBR could NOT be precleared

 

why is that? smart seems good.

 

in the past, i had a new disk disabled, but new config solved it for me.

 

array of 10 disks, including parity.

UnRaid 5.0.5

 

thanks in advance.. moshiko

SMART looks fine, I assume it was you that interrupted the SMART short test?  Something odd about the first sector on the drive, but don't know what.  Do you happen to have the syslog that covered the session where it was disabled?

yes it was me about the smart test.

i have all the syslogs from last month so yes i should have the session from when it was disabled. it happened this week cant remember the day. what am i looking for?

You want the syslog where the drive was disabled, and the syslog where the drive above was Precleared.  In both, you are looking for any drive errors, and then looking for the very first occurrences of errors.  You are welcome to zip the syslogs and attach them for examination.

for some reason, i couldnt find it in the syslog. maybe it happened earlier than i thought which in this case i dont have the syslog.

however, i noticed that file transfering also got slowed. from my experience with computers (my job) i know that sometimes 1 defect sata cable can couse other devices on sata to not work properly.

 

so, i replaced ALL the sata cables in my server with new ones, and everything works perfectly for about a month now.

thanks for the help