How to Recycle. Representing approximately one-third of all vendors' products that passed the SNIA Conformance Testing Program, this expansive range of current- and prior-generation systems delivers the industry's broadest storage platform support for SMI-S.
Howard Elias, EMC Executive Vice President of Corporate Marketing and Office of Technology, said, "This achievement is a major milestone in EMC's ongoing commitment to deliver on standards for open, automated and interoperable networked storage environments while protecting customers' existing investments.
Through open management across new and currently installed systems, EMC is helping customers apply their information lifecycle management strategies across the industry's broadest range of tiered networked storage systems. EMC Corporation NYSE: EMC is the world leader in products, services and solutions for information storage and management that help organizations extract the maximum value from their information, at the lowest total cost, across every point in the information lifecycle.
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Obviously this was a much smaller amount of data since it was only a 4 way meta whereas with the Clariion you lose every LUN on the raidset. Bill Piatek. So you should never see two parts of the mirror to fail at this same time — until SCSI chain has failed and your mirror was not well designed inside of the box and let your mirror to get offline. Usually when customer does it himselg — without consultant or EMC services. Other problem would be Front FC adapter issue.
The actual difference between a Clariion and a Symmetrix implementation is actually a bit less obvious:. The Symmetrix architecture allows you to spread the raid protection of all the hypers on a given physical onto totally different and separate physicals.
On a Clariion all the sources and mirrors of all 5 LUNs will reside on the same 2 physical drives. On a Symmetrix, typically, the 5 LUNs will reside on 6 physical drives.
The first copy of all 5 sources on the same physical as defined above; the mirror copy of each of the 5 LUNs will be spread over 5 different physical drives.
FYI, each of the physical drives holding the mirror copy will likely hold mirror copies of other LUNs from different source disks. Note that use of metaLUNs further complicates this discussion as you need to take into consideration the location of all the components of the metaLUN. But allows for multiple disk failures, provided not more than one drive fails for each compenent.
Also note that on some array configurations on-line spares are not automatically invoked. Manuel, Thanks for your comments. This is no longer true. Let it happen. The only risk you always have is sticking your head in the sand. Joel Schwartz, general manager of EMC's midrange systems division, said that while Symmetrix will remain a standard for highly resilient and high-throughput systems, he isn't troubled by the user movement away from the line. He predicted that such a move by EMC would accompany an industrywide convergence of midrange and high-end systems.
Prigmore pointed to IBM's release last fall of its TotalStorage DS line of arrays, which includes both high-end and midrange systems that share common applications and management software. Prigmore said it makes sense that users would stick with high-end arrays if they already had significant investments in storage software and staff trained to support those systems.
But, he added, "the gap is closing here, perception-wise. Local point-in-time copies SnapView.
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