DISQUS

DISQUS Hello! Stephen Foskett, Pack Rat is using DISQUS, a powerful comment system, to manage its comments. Learn more.

Community Page

Jump to original thread »
Author

Turning the Page on RAID

Started by sfoskett · 7 months ago

This is part of an ongoing series of longer articles I will be posting every Sunday as part of an experiment in offering more in-depth content.
It has been the core technology behind the storage industry since day one, but the sun is setting on traditional RAID technology. After two de ... Continue reading »

2 comments

  • Hi Stephen,
    Good article on RAID. My comment: not so fast. RAID5/6 implementations based on Patterson et.al. are still being heavily purchased and deployed in the industry. One reason: the mathematical lookup of data, as described by Patterson, is not only fast, but more importantly, it's trusted. Customers are cognizant of the value of this direct mapping. Virtualizing the location of customer data has its place (e.g. enabling snaps), but mathematical lookup will continue to be a valuable role at the very bottom of the stack.
    Keep up the interesting posts,
    Steve
  • Steve,

    Great point! I'm very much a pragmatist, as are most successful storage managers. They'll continue to use what works long into the future, even as new ideas come and go. But let me be clear - this is the end for RAID tied to specific whole disks. We'll continue to see RAID 5 and RAID 6 (and RAID 1) based on subdisks (as in DMX et al) but devices like the CLARiiON will give up their strict disk-centric model. In my opinion, of course!

    Stephen

Add New Comment

Returning? Login