Comments on: Seagate’s definition of nearline drives http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/ Storage Solutions for Real World IT Professionals Sat, 20 Mar 2010 08:22:13 +0000 http://wordpress.org/?v=1.5.2 Comment on Seagate’s definition of nearline drives by: Tom http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-25745 Tue, 09 Jan 2007 12:44:22 +0000 http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-25745 Joe, thanks for the update. I wasn't aware of the accelerometer in nearline drives. Very cool. It's good to have a drive guy lurking on this board. :) TT Joe, thanks for the update. I wasn’t aware of the accelerometer in nearline drives. Very cool.

It’s good to have a drive guy lurking on this board. :)

TT

]]> Comment on Seagate’s definition of nearline drives by: Joe Fagan http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-25637 Tue, 09 Jan 2007 00:54:20 +0000 http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-25637 Just for fun - a 15K drive (with a samll 65mm platter leaving room for a huge actuator motor) will kick out significantly more RV that a desktop drive can tolerate if its right next to it in a chassis [becasue the 15K will typically have a 3ms seek] - SO mixing 7.2K desktop class and 15K [you know those beautiful SAS slides that show this configuration] is a real no-no. Another motivation for nearline class SATA drive, that will have RV Compensation - [Thats's little accelerometers that detect rv from the neighbours and drive current into the actuator to keep the head above the data even when the drive is being rock out of its boots]. Desktop drive don't have rvc to keep the cost down. Maxtor Maxline II do. Just for fun - a 15K drive (with a samll 65mm platter leaving room for a huge actuator motor) will kick out significantly more RV that a desktop drive can tolerate if its right next to it in a chassis [becasue the 15K will typically have a 3ms seek] - SO mixing 7.2K desktop class and 15K [you know those beautiful SAS slides that show this configuration] is a real no-no. Another motivation for nearline class SATA drive, that will have RV Compensation - [Thats’s little accelerometers that detect rv from the neighbours and drive current into the actuator to keep the head above the data even when the drive is being rock out of its boots]. Desktop drive don’t have rvc to keep the cost down. Maxtor Maxline II do.

]]> Comment on Seagate’s definition of nearline drives by: Tom http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-20681 Fri, 01 Dec 2006 17:53:59 +0000 http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-20681 Robert, yes, nearline drives are typically SATA. In fact, every nearline drive I've heard of is SATA, but that's not really a requirement. I suppose FATA might even call into the nearline category. Robert, yes, nearline drives are typically SATA. In fact, every nearline drive I’ve heard of is SATA, but that’s not really a requirement. I suppose FATA might even call into the nearline category.

]]> Comment on Seagate’s definition of nearline drives by: Robert Pearson http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-20564 Fri, 01 Dec 2006 00:21:14 +0000 http://storageadvisors.adaptec.com/2006/11/02/seagates-definition-of-nearline-drives/#comment-20564 Great article, Tom. I assume the Nearline drives are SATA? Would you care to comment in a new post about this article? http://www.pbs.org/cringely/pulpit/2006/pulpit_20061026_001143.html This article is the only place I have seen this approach mentioned. Baloney or Brilliance? Great article, Tom.

I assume the Nearline drives are SATA?

Would you care to comment in a new post about this article?
http://www.pbs.org/cringely/pulpit/2006/pulpit_20061026_001143.html

This article is the only place I have seen this approach mentioned.
Baloney or Brilliance?

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