building a RAID system - 8 drives - drive-net - tapes
alvin at Mail.Linux-Consulting.com
Thu Oct 9 19:36:29 EDT 2003
On Thu, 9 Oct 2003, Angel Rivera wrote:
> > yes.. guess it makes sense to move disks around for moving tb of data
> > like floppy-net or sneaker-net
> > - done that ( moving disks around ) myself once in a while
> > for a quickie fix
> When you have that much data, it is easier and faster to load 8 drives into
> a box than tons of tapes. take out the old drives and place the new ones
> in, mount it, export it and voila-it is on-line.
yes and a "bunch of disks" (raid5) survives the loss of one dropped disk
and is relatively secure from prying eyes ....
- ceo gets one disk
- cfo gets one disk
- hr gets one disk
- eng gets one disk
- sys admin gets one disk
( combine all[-1] disks together to recreate the (raid5) TB data )
- a single (raid5) disk by itself is basically worthless
tape backups are insecure ...
- lose a tape ( bad tape, lost tape ) and and all its data is lost
- anybody can read the entire contents of the full backup
( one could tar up one disk per tape, instead of tar'ing the
( whole raid5 subsystem, to provide the
( same functionality as a raid5 offsite disk backup
and hopefully .. the old disks are not MFM drives..
or ata-133 in a new sata system :-)
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