SMART Report on cache drive

[beire]

Hey guys,

 

I had some trouble with transfers to the cache drive.

All of them failed after a few minutes in the transfer. I now changed the cache drive with a new WD Red. (Still testing transfers now...)

 

This is the latest smart report i got (see attachment)

 

Are any of the values abnormal?

This is the 4'th of 5 Seagate drives that has failed now in a timespan of almost 3 years!

smart.txt

[RobJ]

Drive looks fine, no abnormal values.

 

Does the syslog show errors to the drive?  Many times, it's not the drives' fault but the cable or something else.

[beire]

I'll check this weekend. The drive is in a hot swap bay. I'll switch its place with the new one i replaced it with and run some tests. If it's cabling or backplane, the new drive should return the same issues and the old one should be fine then.

[beire]

I swapped the new WD RED cache drive in old one's bay.

I tested read speed with:

 

for ((i=0;i<8;i++)) do hdparm -tT /dev/sdk; done

 

The new drive gets read speeds of 145MB/s average.

The old one (which is a 7200rpm drive!) gets around 77MB/s in that same bay.

When swapping it around a bit i can get it to 95MB/s .

 

This is too low right? Shouldn't i be seeing +120MB/s on that drive?

[danioj]

I swapped the new WD RED cache drive in old one's bay.

I tested read speed with:

 

for ((i=0;i<8;i++)) do hdparm -tT /dev/sdk; done

 

The new drive gets read speeds of 145MB/s average.

The old one (which is a 7200rpm drive!) gets around 77MB/s in that same bay.

When swapping it around a bit i can get it to 95MB/s .

 

This is too low right? Shouldn't i be seeing +120MB/s on that drive?

 

I just had a WD Green Drive that passed ALL S.M.A.R.T tests. It even passed its preclear with flying colours. All baring speed.

 

It would only read at <= 20MB/s.

 

Another WD Green same slot would read FULL speed.

 

I put it down to one of those things. A defective drive. R.M.A.