vittel Posted July 30, 2010 Share Posted July 30, 2010 Hello, I have an unraid box running with small disks (80GB-120GB-250GB) and to upgrade it I recently purchased a WD caviar green 1.5 TB 5400RPM 64MB. I received meanwhile as a gift a Seagate Barracuda 7200.11 1.5 TB 7200RPM 32MB. Which one do you advice tu put as parity disk ? The last run faster but the first one has greater cache. What would be the best to do ? Any advice is welcome... Thanks Link to comment
Rajahal Posted July 30, 2010 Share Posted July 30, 2010 Use the Seagate as your parity disk. In certain scenarios, such as multiple simultaneous transfers to the server, the faster rotational speed of the Seagate HDD will be beneficial. Also be sure to install a jumper on pins 7-8 of you WD green drive BEFORE installing it in your server. Failure to do so will usher in the apocalypse. Seriously. Link to comment
graywolf Posted July 30, 2010 Share Posted July 30, 2010 Also be sure to install a jumper on pins 7-8 of you WD green drive BEFORE installing it in your server. Failure to do so will usher in the apocalypse. Would that not apply only if it is a EARS? Did not think the EADS (or others) needed the jumpering. Or maybe the EARS is the only Caviar Green with the specs mentioned and that is how you knew? Link to comment
vittel Posted July 30, 2010 Author Share Posted July 30, 2010 The WD is an EARS, so the jumper thing is correct, thanks for the tip. While I read it somewhere I'm sure I'd have forgotten it if you didn't remember me... A big thank you for the fast and efficient reply ! Link to comment
jazzysmooth Posted July 30, 2010 Share Posted July 30, 2010 Also be sure to install a jumper on pins 7-8 of you WD green drive BEFORE installing it in your server. Failure to do so will usher in the apocalypse. Would that not apply only if it is a EARS? Did not think the EADS (or others) needed the jumpering. Or maybe the EARS is the only Caviar Green with the specs mentioned and that is how you knew? There are at least some EADS drives that now are using the Advanced Format Technology as well. I purchased 2 - 1TB versions recently that have it. Link to comment
graywolf Posted July 30, 2010 Share Posted July 30, 2010 ok. So how would I tell if an EADS needed the jumpers or not? Got 3 OEM/Bare Drives for my first build and figured I wouldn't need to jumper them. Link to comment
jazzysmooth Posted July 30, 2010 Share Posted July 30, 2010 Look at the label, see if they say Advanced Format Technology anywhere on them. If they do, add the jumper. This is the model number of my 2 EADS that do have it: WD10EADS-11M2B2 Link to comment
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