RE: No Mirror or Raid

[Scott Klement <klemscot@xxxxxxxxxxxx>]

Speaking from experience here...   we've had 4 disk failures in the past
8 years.

2 of these failures were with unprotected disks.   The result was 2 days
of downtime (per failure) , during that 48 hours, our department was here
24 hours a day working.

Besides the obvious stress of that situation, it cost us a great deal of
lost business -- not to mention that it took a good year to finally
find and iron out all the wrinkles from not being able to reproduce
everything that had been done on that system in the 8 hours since the
last backup.

The other two failures occurred when we had the disk mirrored.   For
these, I spent 5 minutes on the phone with an IBM CE.   He got a
replacement drive and swapped it out while we continued to use the
system.   Completely, 100% painless.

I don't care what arguments are made on that point.  If the data on
your system changes more often than you back it up, you NEED some sort
of redundancy.    Doing without it is suicidal.


On Wed, 7 Mar 2001, Buck Calabro wrote:

> Mike, the big "pro" is saving on the cost of AS/400 DASD.  There are smaller
> businesses who prefer not to spend monies for redundant DASD, especially
> given the positive track record of AS/400 hardware.
> 
> Buck 
> 




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