Drobo and hard disk specs


Jul 26, 2002
1,376
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Woodlands
#1
Question for you Drobo users. Does the cache level of the harddisk matter? Mainly because WD has 3 different 2TB HDDs and the main difference between them is the amount of cache (32MB vs 64MB) and the Caviar Black is just much more expensive than the Cavier Green.

So it is worth going for the more expensive one? Or is capacity all that matters when you chuck it in a Drobo?
 

hotwork77

New Member
Jun 21, 2009
1,353
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0
1°19'37.70"N 103°47'39.19"E
#2
Question for you Drobo users. Does the cache level of the harddisk matter? Mainly because WD has 3 different 2TB HDDs and the main difference between them is the amount of cache (32MB vs 64MB) and the Caviar Black is just much more expensive than the Cavier Green.

So it is worth going for the more expensive one? Or is capacity all that matters when you chuck it in a Drobo?
Drobo was designed at a time when HD cache was only 8MB then. So the more the merrier. What is more important is MTBF which will be the failure rate of HDD during 24/7 operation. I have been using WD Green in my home server for the past 6 years without problem. Having said that, I also have HD that fail on me within half a year. It was debated in CS for quite awhile as to which brand was more reliable.

You won't go wrong with Seagate and WD. :cool:
 

Octarine

Moderator
Staff member
Jan 3, 2008
12,518
32
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Pasir Ris
#3
With Ethernet and the Drobo controller in between I doubt that the difference will be very big. When using the disks directly at the motherboard / onboard storage controller of a server system the difference is more obvious.
 

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