Michael wrote:
> On Monday, 12 May 2025 09:11:54 British Summer Time Dale wrote:
>
>> I'm thinking about adding this to my backup drive set.  With this
>> addition, I can have one backup for all my videos instead of breaking it
>> into two pieces. 
>>
>> Any concerns with the data you see?  Would you be OK using this drive? 
> I don't want to say go ahead, only for the drive to fail when you come to 
> rely 
> on it.  Knowing it's a refurbished drive, it takes time to spin up, but shows 
> no errors, I would use it in a non-critical operational setup and keep an eye 
> on it for a while, but that's just me.  I've had drives with critical errors 
> on them and have been waiting for them to fail for years now.  I'm still 
> waiting ...  ;-)
>

I use this command to check the important stuff. 


smartctl -a /dev/sdX | egrep
'(^ID|Reallocated_Sector_Ct|Reported_Uncorrectable_Er|Command_Timeout|Current_Pending_Sector|Offline_Uncorrectable)'


Just replace the X with correct drive device.  For the 20TB drive, that
shows this.


root@Gentoo-1 / # smartctl -a /dev/sdb | egrep
'(^ID|Reallocated_Sector_Ct|Reported_Uncorrectable_Er|Command_Timeout|Current_Pending_Sector|Offline_Uncorrectable)'
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE     
UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail 
Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age  
Always       -       0 0 0
197 Current_Pending_Sector  0x0012   100   100   000    Old_age  
Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age  
Offline      -       0
root@Gentoo-1 / #


>From what I've read, when those show zeros, it is a good drive. 

I'm going to do some more testing first but I think this drive is OK. 
To be honest, I can't tell that in connects any slower than any other
drive, regardless of size or age.  I tend to give a hard drive, or set
of hard drives for LVM setups, at least a minute to spin up and connect
before I try to mount them anyway.  If the drive does take a few extra
seconds to connect at full speed, I'll never notice it in real world use
even if the kernel does. 

Now to tackle that 8TB SMR drive.  I think it is sick, or something.  I
don't like that drive anyway.  LOL 

Dale

:-)  :-) 

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