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Re: Soft-RAID and Hard-RAID?

While a RAID 5 config may function perfectly well with one drive missing, what do you think will happen if you do so and another drive fails before the RAID system is rebuilt? Unlikely, you say? Well, it happened to me and, boy, will I not do it again!!! Now, I always work on the worst case scenario, especially when handling data and leave the "cowboying" to other people. Perhaps you've had bad experiences with badly implemented RAID 1 solutions but the systems I manage have complete failover where someone can yank a RAID-1 drive out and it will failover instantly to the mirrored volume with nary a hiccup. Of course, all our arguments are moot because they aren't available to MacOS X Server. Oh well. Let's leave it at that.

At 15:52 -0500 04/29/2002, Jon L.Gardner wrote:
This is inaccurate as well...RAID 5 configurations function perfectly well with one drive missing, and rebuilding a drive can happen "on the fly" with the volume(s) still online. Depending on how a RAID 1 mirror is configured, you may have to restart a system if one drive fails. RAID 5 is typically more solid in terms of uptime than RAID 1.

On Monday, April 29, 2002, at 02:36 PM, Kok-Yong Tan wrote:

RAID-3 through RAID-5 is great if you don't have to be up 100% of the time but still need protection against drive failure (because even if you have hot-swappable bays, it takes time to rebuild the data after you swap out the bad drive with a blank good drive: the rebuild time being dependent on how much data was on the RAID system before one drive went bad).


<><
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 >Re: Soft-RAID and Hard-RAID? (From: "Jon L. Gardner" <email@hidden>)



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