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DiskStorageCost
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"Back in the day" I used to spec disk storage (e.g. EMC Symmetrix) for customers who paid around $1000/GB. Then I spent about 2 years away from the system sizing game. When I got back into the flow in Feb 2002 I looked around to figure out new rules of thumb for storage costs. On a continuum from cheap to pricey: ---+ 2004 | *type* | *amount* | *cost* | *$/GB* | *source* | | Raw IDE disk (Maxtor) | 120GB | $120 | 1 | Compusa | | SCSI Hotplug | 146GB | $500 | 3.5 | Dell | | mid-range RAID (Sun T3) | 1321GB | $98k | 74 | Sun Store | | high-end RAID (Sun 9970) | 9TB | $677k | 73.5 | Sun Store | Now high-end RAID is about 75 times more expensive than consumer-grade IDE (the difference used to be 25x). It's getting harder and harder to justify going with the big stuff, unless you _really really_ need it. ---+ 2002 | *type* | *amount* | *cost* | *$/GB* | *source* | | Raw IDE disk (WD) | 20GB | $100 | 5 | Staples | | SCSI "shoebox" (Sun Multipack) | 218GB | $5650 | 26 | Sun Store | | low-end RAID (compaq 4100) | 432GB | $15k | 36 | Compaq website | | mid-range RAID (Sun T3) | 655GB | $84k | 128 | Sun Store | | high-end RAID (Sun 9960) | 5800GB | $730k | 125 | Sun Store |
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