[Coco] Screen capture

[Steven Hirsch]

>> The NAS uses the free Linux software and there is no capability of
>> recovering now. Before as it was RAID 1 I could replace the disk and
>> recover everything. Previous Seagate product was sent to Mexico for
>> replacement three times before Seagate took pity on me and upgraded to
>> a better product. A 1" fan for two drives in a box that was as tight as
>> it could have been made. :-II

This "recovery" of which you speak is what archival backup is designed 
for.  There was an amusing thread on the classic-computer mailing list 
entitled "Redundant Array of Inexpensive Sysops" that walked this worn 
path.  The gist of it is:

First Law of data protection:  RAID != Backup

Corrollary to first law:  RAID is for _availability_ not data security

Overlook those points at your peril.  Some time back I invested in a 
couple of LTO-2 linear tape drives and went on a schedule of rotating 
backups.  During summer of 2011, I had a drive fall over on a RAID-5
followed by a second drive failure during rebuild (yes, it can happen). 
My backup was about a month stale (shame on me), but it saved a bad 
situation from becoming catastrophic.  A quick trip to Best Buy for new 
SATA drives and one restore later I was back in business.

Never, never, never rely on RAID as an archival mechanism.

Steve


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