hi Jon
ideally the error/crc numbers should be zero (or whatever high number the manufacturer presets if its a count-down config, not sure in your case but all my seagate and WD and hitachi drives start fro zero). The CRC tends to indicate a comms error on the SATA and that could be just not connected properly/cable issue (power or sata), hence what the guy did would be handy to know. The error stuff says the block wasn't found (seek) or was corrupt when read, again cable fault could have contributed here. The fact that it hasn't revectored and no pending count you may be lucky and it was only a connection issue.
The power cycle reflects the count of the system being turned off/on and start/stop the cycle up/down of the drive - if a drive is "green" or allowed to sleep then this will be higher than the power cycle count, but the downside is often that the drive quickly exceeds limit and starts to flag smart errors or just plain fails to run any more. On yours they are close to same so probably the drive runs all the time, best way for an NVR IMHO else you lose feed while the drive spins up and miss recording bits.
@Aengus4h Thanks for that.
Yeah I wish I know what he did too.
How do I configure the setting which you mentioned about the "power cycle" thing? if that is possible to configure.
or do I just hope for the best?