The 3 I asked about where

 

Disk 4: 5XW1NY9G

Disk 11: 9WM2GB7P

Disk 13: Z1F0YY1K

 

I was always worried about disk 1. It was also my app disk for 4-5 years before v6 and a cache drive so it was always running. Just thought about that.

WD-WCAVY4259797

 

Thanks

 

........

 

 

 

 

I am going to replace 1 of my older drives.

 

In my drive Attributes, I have 1 drives that has Command Timeout yellowed, i drive that has Reallocated Sector Ct yellowed and one drive with both in yellow.

 

Wonder which one I should replace.

 

Thanks.

tower-diagnostics-20150721-1358.zip

Command timeout is definitely not important.  Reallocated count may not be that important, unless changing or very high.  Why not provide the full SMART reports (just attach the diagnostics file), and indicate the serial numbers of the 3 drives?  We can better compare from the full reports.  Personally, I would judge based on age, size, make/model, serious SMART defects, then minor SMART issues last.

1st post update with zip file and notes.

 

Disk11

Disk11

 

Cool. Thanks for the advice!