Disc to Readynas 524

It is important that these WD discs must be working for at least another 10 years :)

Paal

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fondy wrote:

 

Which WD disc type is recommended considering price and TB?

 

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I use 3 WD80EFZX (8 TB WDC Reds) in my own RN524x, leaving the last slot open for future expansion. In my RN526x I use 4 WD60EFRX (6 TB WDC Reds) You could also go with WDC Red Pros or WDC Golds (both enterprise class).  But I get good performance with the Reds, and I like the fact that they run cool. 

4x4 TB Reds cost about $45/TB ($134*4/12).  Golds bring that up to ~$57 ($170*4/12)

4x6 TB Reds cost about $42/TB ($190*4/18).  Golds bring that up to ~$55 ($258*4/18)

4x8 TB Reds cost about $43/TB ($259*4/24).  Golds bring that up to ~$55 ($330*4/24)

The costs per TB of a fully populated NAS are very close within each class of drives.  Unless you are planning a big expansion in storage needs I suggest getting fewer larger drives, and leaving some open slots for future use. This costs more per TB in the short run, but over time it ends up cheaper (since you don't need to replace working disks with bigger ones when it comes time to expand).

For instance, 2x8TB would give you a bit more space than you have now, and leaves open the option of adding 2x10 TB or even larger later on.  

FWIW, I think both the Ultra 4 and the ST2000DL003s were introduced in late 2010, so they'd be about 7 years old.