So i have 4 4TB reds in a synology nas, one tripped with bad sectors. I plugged it into my Win 10 machine and importantly it recognized it at this point as a 4tb drive.
Tried to run the Lifeguard app [with no attached usb storage] and the stupid thing crashes after the license screen everytime. I have an old XP machine so i plugged it into that and installed Lifeguard and great.
Ran the extended test and came up with some bad sectors but was able to fix. Second extended test came back clean. Plugged back into my main machine and removed all the old partitions and plugged it back into the nas.
Now i wasn’t looking too hard here as i wasn’t expected anything bizarre but either when removeing the partitions or elsewhere the drive is now reporting as only having a capacity of 2794.42GB in either the NAS or WIn 10.
So go back to lifeguard on teh old XP machien and it only shows as 3000GB.
The drive is GPT all space is unallocated [2794.42GB] there is no other free space available in Disk Mgmt, converting from GPT to MBR and back just spits it into a 2tb and 700GB partition.
What happened to the other 1tb of space? there should be at least 3.7tb on there?1?