In Reply to: Re: RAID Array ? posted by Rod M on May 11, 2007 at 08:49:45:
73GB disks aren't that big by today's standards. It's a little scary that the one disk failed then rebuilt OK. It could be marginal. And when one disk starts to fail, you have to wonder about the others if they're the same age.If it took a while to rebuild that 73GB disk, you can imagine how long the RAID controller might take to rebuild a 500GB or 1TB disk. 1TB disks became available this year (although not widely used in "systems" just yet).
Redundancy to minimize single points of failure can be very expensive. You need at least two of everything! Two servers, each with two power supplies, with separate NIC cards, with separate SCSI / FC controller cards, etc. Plus redundant paths to external RAID arrays and redundant switches and network paths. Even the redundant power supplies in each server are fed from separate AC circuits if possible. Having the equipment in different rooms is even better. Or better yet, in different parts of the country / world. ;-)
Fun stuff and expensive... And never perfect.
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Follow Ups
- Re: RAID Array ? - AbeCollins 09:37:49 05/11/07 (5)
- Re: RAID Array ? - Rod M 10:03:18 05/11/07 (4)
- Update the firmware - nickwh 15:13:27 05/12/07 (0)
- A RAID recommendation - David W. Robinson 12:27:00 05/11/07 (1)
- Re: A RAID recommendation - Rod M 14:53:43 05/11/07 (0)
- Look to the RAID controller - J.Mac 10:32:06 05/11/07 (0)