Re: RAID Information

Michael, Though I am from AT&T, I'm not "affiliated" with AT&T GIS. I'm an applications developer/programmer. As I hope that I stated in my post on RAID, I'm not a "RAID" expert. As a result of a project that I was working on, I HAD to become familiar with some aspects of RAID very quickly, and I wanted to pass on that knowledge. AT&T GIS treats me as a customer, abet an "internal" one. I found a previous posting of yours on some technical aspects of the Storage RAID 7 product very interesting. Could you tell us here the similarities/dissimilarities between Storage's RAID 7 and the description in the Berkeley papers? The little that I know about RAID 7 is that can protect against the failure of two disks within the RAID array. Does Storage also protect against two-disk failures? BTW, is Storage Computer a member of the RAID Advisory Board? Lou Avrami ( attmail!lavrami ) Any opinions stated are my own, not my employer's. In article <D2xoon.5GD@world.std.com>, Michael E Willett <mew@world.std.com> wrote: >Louis Avrami at AT&T writes: > >>... there are six basic levels of RAID...etc. > >Hi Louis, > >As has been mentioned before, the RAID 7 level has quite a number >of architectural advances over the earlier RAID levels developed >back in the mid-80s. Storage Computer first had a RAID 3 prototype >operating back in 1984, then RAID 4 and 5, and has been working >continuously to make major performance enhancements to RAIDs since that >date. We have lots of technical information on the architecture, >including whitepapers. > >What RAID levels might AT&T GIS be offering now that Rick Miller has sold >off their NCR RAID division to Hyundai? > >Michael Willett, EE >Storage Computer Corp. >11 Riverside Street >Nashua, NH 03062 >Tel. 603-880-3005 > >:::I/O-accelerated, very fast disk arrays for all SCSI systems to 1,000 GB:::