What to buy? Hitachi 5K4000 or 7K4000

[dikkiedirk]

I want to throw out the few 1 TB drives in my server and replace them with 4 TB drives. What to buy?

 

Hitachi 5k4000 175 Euros

 

or

 

Hitachi 7k4000 199 Euros

Will there be much difference in speed and overall performance?

 

Or maybe stay with the WD30EFRX AKA RED?

[Helmonder]

The red is 130 euro so that saves you something like 50 euro...  The red should be faster then a 5400 but not as fast as a 7200, bit in between..

 

If you change data drives I would go for the reds, if you want to change a parity drive I would go for the 4tb..

[aiden]

I have only used Hitachis in my unRAID builds. The ones that passed a 3 cycle preclear have been solid for me for years. Others on here have had the same experience. Unfortunately, there's no telling how much longer that will hold true now that WD has gained control of the company.

 

As far as the 5400 rpm vs 7200 rpm goes, for my NAS systems I always go with the 5400 rpm drives. When dealing with a large quantity of drives, the additional savings in power and heat are multiplied substantially, and since unRAID has relatively low write speeds anyway, there is no perceptible loss in speed vs the 7200 rpm drive. For streaming, 5400 is fast enough to push 2 uncompressed Blu-rays simultaneously.

[Ford Prefect]

I have only used Hitachis in my unRAID builds. The ones that passed a 3 cycle preclear have been solid for me for years. Others on here have had the same experience. Unfortunately, there's no telling how much longer that will hold true now that WD has gained control of the company.

 

IMHO the 3.5" business has been forwarded to Toshiba...WD only kept Hitachi IP for the smaller formfactors.

When I buy a 3TB Toshiba disk here, it still has a Hitachi sticker/label alongside the Toshiba brand label.