Good afternoon, some of you might be able to provide some advise. I want to upgrade my Backup Server with one additional >=3TB drive and I would like to take advantage of my experience with the 3TB drives of my Main Server.

 

As you see in the picture below I'm currently running TOSHIBA DT01ACA300 drives (7.200rpm) and two WDC WD30EFRX drives (..the WD RED NAS drives). The Toshiba's are running hotter but the difference in speed is quite obvious.

 

I have read some comments about number of platters and density, so my question is, if the 4TB or 5TB WD Red drives are coming a little bit closer to the speed of the Toshiba drives because of density?

 

Do you see any other disadvantages by buying one more Toshiba drive other than temperature and higher currency costs?

 

Thank you very much.

unRaid_diskspeed.html.zip

Toshiba 7200RPM drives, give them some extra cooling and you will be happy.  Most of the Toshiba's are 'old' Hitachi drives which are battle tanks, the WD's not so much.

 

The DT01ACA300 is a 1TB/platter drive, just like the 4TB and 5TB WD Reds, so it will have a faster sustained transfer rate than the Reds.    The 6TB WD Red is a 1.2TB/platter unit, so it will be very close to the Toshiba's transfer rate even with the slower rotational rate [The Toshiba will still be slightly faster].

 

Thanks a lot guy's. I will continue upgrading with the Toshiba's....made good experience with all of them and they are really cheap with under 90 EUR.

 

Here is my latest parity check result:

Duration: 7 hours, 31 minutes, 6 seconds. Average speed: 110,9 MB/sec

 

Not too bad and I guess it will even improve when I move the two remaining WD RED's into my Test&Backup server.