Comments for RayOnStorage Blog http://silvertonconsulting.com/blog Storage, Strategy & Systems Tue, 21 Feb 2012 20:51:25 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on Why SSD performance is a mystery? by Storage performance matters, even for smartphones | RayOnStorage Blog http://silvertonconsulting.com/blog/2009/09/15/why-ssd-performance-is-a-mystery/#comment-49019 Storage performance matters, even for smartphones | RayOnStorage Blog Tue, 21 Feb 2012 20:51:25 +0000 http://www.silvertonconsulting.com/blog/?p=669#comment-49019 [...] which as is we all know, has much slower write time than read time, almost 1000X  (see my post on Why SSD performance is such a mystery).  Most likely the memory cards are pretty “dumb” so many performance boosting [...] [...] which as is we all know, has much slower write time than read time, almost 1000X  (see my post on Why SSD performance is such a mystery).  Most likely the memory cards are pretty “dumb” so many performance boosting [...]

]]> Comment on Magnetic storage using lasers alone by RayLucchesi http://silvertonconsulting.com/blog/2012/02/09/magnetic-storage-using-lasers-alone/#comment-48453 RayLucchesi Fri, 17 Feb 2012 05:45:03 +0000 http://silvertonconsulting.com/blog/?p=3668#comment-48453 Arun,Thanks for your comment. Yes, these systems should have very good random performance and will excel in database applications.Ray LucchesiRay@SilvertonConsulting. Arun,Thanks for your comment. Yes, these systems should have very good random performance and will excel in database applications.Ray LucchesiRay@SilvertonConsulting.

]]> Comment on Magnetic storage using lasers alone by Arun Kumar Allu http://silvertonconsulting.com/blog/2012/02/09/magnetic-storage-using-lasers-alone/#comment-48447 Arun Kumar Allu Fri, 17 Feb 2012 05:00:32 +0000 http://silvertonconsulting.com/blog/?p=3668#comment-48447 Unbelieviable speeds. Will have no IO issues with databases. Unbelieviable speeds.
Will have no IO issues with databases.

]]> Comment on Sequential only disk?! by Lasers can be Magnetized: Faster Hard Drives - Jerry Nixon - Site Home - MSDN Blogs http://silvertonconsulting.com/blog/2010/04/13/sequential-only-disk/#comment-48405 Lasers can be Magnetized: Faster Hard Drives - Jerry Nixon - Site Home - MSDN Blogs Thu, 16 Feb 2012 21:08:59 +0000 http://silvertonconsulting.com/blog/?p=1660#comment-48405 [...] disk industry has been experimenting with bit patterned media/shingled writes (see our post on Sequential Only Disk) and thermally or heat assisted magnetic recording (TAR or HAMR) heads for some time now. The [...] [...] disk industry has been experimenting with bit patterned media/shingled writes (see our post on Sequential Only Disk) and thermally or heat assisted magnetic recording (TAR or HAMR) heads for some time now. The [...]

]]> Comment on Why EMC is doing Project Lightening and Thunder by Project Lightning: Perfect Storm or Sturm und Drang? « The I/O Storm http://silvertonconsulting.com/blog/2012/02/07/why-emc-is-doing-project-lightening-and-thunder/#comment-47347 Project Lightning: Perfect Storm or Sturm und Drang? « The I/O Storm Thu, 09 Feb 2012 20:45:58 +0000 http://silvertonconsulting.com/blog/?p=3659#comment-47347 [...] only to me. You know my biases. Take a look at some of the blogs out there, including InfoStor, RayOn Storage, Storage Soup, The Bigger Truth, The Storage Architect, Wikibon, and others to get more of an [...] [...] only to me. You know my biases. Take a look at some of the blogs out there, including InfoStor, RayOn Storage, Storage Soup, The Bigger Truth, The Storage Architect, Wikibon, and others to get more of an [...]

]]> Comment on Latest SPECsfs2008 benchmarks analysis, CIFS vs NFS corrected – chart of the month by Latest SPECsfs2008 results, over 1 million NFS ops/sec - chart-of-the-month | RayOnStorage Blog http://silvertonconsulting.com/blog/2011/11/04/latest-specsfs2008-benchmarks-analysis-cifs-vs-nfs-corrected-chart-of-the-month/#comment-46478 Latest SPECsfs2008 results, over 1 million NFS ops/sec - chart-of-the-month | RayOnStorage Blog Fri, 03 Feb 2012 19:40:14 +0000 http://silvertonconsulting.com/blog/?p=3424#comment-46478 [...] any hardware at these systems doesn’t necessary increase performance.  Previously (see my CIFS vs NFS corrected post), we had shown the linear regression for NFS throughput against spindle count and although [...] [...] any hardware at these systems doesn’t necessary increase performance.  Previously (see my CIFS vs NFS corrected post), we had shown the linear regression for NFS throughput against spindle count and although [...]

]]> Comment on Latest SPC-1 results – IOPS vs drive counts – chart-of-the-month by RayLucchesi http://silvertonconsulting.com/blog/2012/01/19/latest-spc-1-results-iops-vs-drive-counts-chart-of-the-month/#comment-46226 RayLucchesi Wed, 01 Feb 2012 18:48:03 +0000 http://silvertonconsulting.com/blog/?p=3603#comment-46226 K,Thanks again for your comments. I guess we will need to disagree here because I believe that sophisticated caching can help subsystems perform better on SPC-1. I suppose it's not to much of a stretch to say that SPC-1 is "caching challenged". ;)Ray K,Thanks again for your comments. I guess we will need to disagree here because I believe that sophisticated caching can help subsystems perform better on SPC-1. I suppose it's not to much of a stretch to say that SPC-1 is “caching challenged”. ;) Ray

]]> Comment on Latest SPC-1 results – IOPS vs drive counts – chart-of-the-month by S. Kartik http://silvertonconsulting.com/blog/2012/01/19/latest-spc-1-results-iops-vs-drive-counts-chart-of-the-month/#comment-46198 S. Kartik Wed, 01 Feb 2012 13:17:32 +0000 http://silvertonconsulting.com/blog/?p=3603#comment-46198 The SPC-1 has not changed - it is still cache-hostile. What I believe is likely happening is that some systems are showing signs of component (front-end, CPU, cache, drive loop,...) saturation before the HDDs get saturated. I'll need to dig deeper to determine what it is as it is architecture dependent. Cheers, K. The SPC-1 has not changed – it is still cache-hostile. What I believe is likely happening is that some systems are showing signs of component (front-end, CPU, cache, drive loop,…) saturation before the HDDs get saturated. I'll need to dig deeper to determine what it is as it is architecture dependent.

Cheers, K.

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