So next year will mark a history of Symmetrix Products within EMC, still classified as one of the most robust systems out there after 20 years of its inception. In this blog post, we will talk about some facts on Symmetrix products as it relates to its features, characteristics, Enginuity microcode … [Read more...]
EMC Symmetrix: Dynamic Hot Spares
July 23, 2009 by Leave a Comment
There are two types of sparing strategies available on EMC Symmetrix Series of machines. Dynamic Hot Sparing: Starting the Symmetrix 4.0, EMC had introduced dynamic hot spares in its Enginuity code to support customers against failing disk drives and reducing the probability of a data loss. … [Read more...]
EMC Symmetrix: Permanent Sparing
July 22, 2009 by Leave a Comment
There are two types of sparing strategies available on EMC Symmetrix Series of machines. Dynamic Hot Sparing: Starting the Symmetrix 4.0, EMC had introduced dynamic hot spares in its Enginuity code to support customers against failing disk drives and reducing the probability of a data loss. … [Read more...]
EMC Clariion RAID-6 requirements and limitations
July 15, 2009 by Leave a Comment
Here are some requirements and limitations related to using the RAID-6 technology on the EMC Clariion platforms. RAID-6 is only supported with Flare Release 26 and above on Clariion systems. Flare 26 only works on the EMC Clariion CX300, CX500, CX700, all CX3-xx platforms and all CX4-xxx … [Read more...]
EMC Symmetrix DMX – RAID 6 Implementation
February 27, 2009 by Leave a Comment
EMC has been a market leader in bringing new innovative technology to the IT forefront. With the usage of RAID 6, EMC has again taken a very unique approach in designing this technology for its Symmetrix DMX products. EMC has been a little late in adaption of RAID 6 for its products, not until … [Read more...]
HP’s RAID 6 (ADG – Advanced Data Guarding)
February 18, 2009 by Leave a Comment
Continuing my RAID 6 posts, first HDS’s RAID 6, then NetApp’s RAID-DP and now this time around it’s HP’s RAID-6 ADG. Will try to keep this post short in terms of overall RAID 6 concepts, rather jump directly into the technical aspects of HP’s RAID-6 ADG (Advanced Data … [Read more...]
NetApp’s RAID-DP (Enhanced RAID 6)
February 18, 2009 by 5 Comments
Continuing the quest on RAID 6, with my previous post related to HDS’s RAID 6, here is a post about NetApp’s RAID-DP (Double Parity - Enhanced RAID 6). In some upcoming posts, we will talk about RAID 6 technology and its usage by EMC and HP. If possible will try to write the final post on … [Read more...]
Hitachi’s (HDS) RAID 6
February 18, 2009 by Leave a Comment
Hitachi (HDS) has been one of the pioneers in implementing RAID 6 in their storage products. I believe the necessity of RAID 6 at HDS was initially realized back in 2004 with the release of high capacity disk drives, and since then they started implementing those in 2005 with the USP’s and then … [Read more...]