I have called Dell reguarding this, after they offered no real insight I called Microsoft. Neither answers satisfy me. Maybe someone here can offer some help.
Recently we had a hard drive go out on our exchange server. The exchange server is hooked up to a power vault 220. Its set up as a raid 5 array. When the drive went out in the array, it caused data corruption. Because of the corruption we had a of a time getting the exchange server back to where it was before the drive failure. We have also experienced the same type of corruption on some of our SQL databases when drives fail. So I am wondering, is there something im missing? We use raid 5 hoping that if a drive fails we can order a new one put it in asap and experience no down time. Does anyone know of any settings in the raid controller that we should be setting to prevent this type of corruption? Any suggestions?
I agree that one shouldn't depend on raid as a substitute for backups, but a raid container should be able to withstand a failed drive and then the rebuild afterwards.
Are you using dynamic disk maybe? I've seen where dynamic disk on top of hardware raid sometimes causes some strange side effects with data and rebuilds.
You may want to contact Poweredge support and have them go over a DSET of your server to see if anything stands out.
adpwl1
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Posted November 14th, 2006 16:00