We had large EMC DMX (high end) arrays, and we paid about $1000 per usable (mirror) TB of FC disk, but that was all in, and there was no reccuring costs. When there was serious investments it got more tricky (backend changes, frames full, etc). The Netapp route was much cheaper. People give me crap now at my current company because to buy a high end shelf on my netapp costs me about $14,000 which is 14 * 300G disks for speed. That comes out to $3 per gig, and that is before RAID-DP. If I go for space buying the 2TB SATA disks are cheap.
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We had large EMC DMX (high end) arrays, and we paid about $1000 per usable (mirror) TB of FC disk, but that was all in, and there was no reccuring costs. When there was serious investments it got more tricky (backend changes, frames full, etc). The Netapp route was much cheaper. People give me crap now at my current company because to buy a high end shelf on my netapp costs me about $14,000 which is 14 * 300G disks for speed. That comes out to $3 per gig, and that is before RAID-DP. If I go for space buying the 2TB SATA disks are cheap.
http://media.corporate-ir.net/media_files/irol/90/ 90829/presentations/062105PresentationtoMorganStan leyAnalystsinBeijingTatelman.pdf/
We had to move it due to missing akamai :)