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  3. August 2005

Raid on a small machine (was: V5R2 and V5R3)

Joe,
I have raid on my 25BG 270 just for the peace of mind (35GB without raid). It's mostly a development box, but I do keep some of my business records, all of my product source, and customer license info on it. I think I may have a smaller machine (P05) since I don't believe it cost me $5700 to get the raid feature.
I know we should all be religious about daily backups, but since this is a home office machine, most of the time it just doesn't happen on a daily basis, and I don't really want to potentially loose a full day (or more) of work (now what were all those changes I made to the code yesterday or the last few days?). 

At 03:04 PM 8/3/2005, you wrote:

do you think RAID on a 35GB machine is
worth $5700?  If so, why?  I'm having a hard time justifying it in my
mind.


From: "Jones, John :
(have to
assume when a drive fails, it'll be 2 minutes before the daily backup
starts).
I had just started a full system save about noon on the Friday before the 4th of July weekend (before apply cum ptfs over the weekend) when I started to get the "*Attention* Impending DASD failure. Contact your hardware service provider now." messages on the console. I was able to contact the local hardware maintenance guy, and he came out in the afternoon with a replacement drive. He plugged it in and waited for everything to balance out before he left. Nothing was lost. If I didn't have raid, it would be "restore from backups" time. I do store some of my tapes off site, and if the latest tape was at the off site location (I use a bank safe deposit box), I could have been out of business until after the weekend.
What will it cost you or your business if you don't have raid or mirroring and you loose a drive? The drive I lost was the first one over the 3 machines I have had (200, S10 and 270), so it hasn't happened very often, but it can happen. 


Dave Murvin
DRM Enterprises, Inc.

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