Picture this scenario:
- One storage box onsite - One identical storage box offsite over fast fiber connection - Storage boxes provide storage space over network block device - One onsite box mounting both storage boxes' nbd devices in raid1 and receiving/performing backups
Opinions?
Don't like it. If users can access the backup box, or if (as per your last point) the NAS-es (how the hell do you pluralize NAS, anyway?) are mounted as RAID-1 or similar, then you've lost your backup. One worm or virus, or one data corruption bug, and both your data stores are shot. Better to give them use of one box, then keep the other just for backups such that your risk of data damage on the second box is lower.
-- Rodolfo J. Paiz [EMAIL PROTECTED]
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