costs of storage arrays and drives
when it come to storage. a while ago, fibre channel (FC) was the path for high end storage, for high availablity, highest reliablity, and performance. The solutions were 100% SCSI based. then came along IDE/ATA solutions, and the pricing dropped through the floor. at my local electronics store, they offer 300 GB 5 year warranty seagate PATA drives for around $115 (after rebate and sales tax). moving up to 300 GB seagate SATA drives cost just $135 (after rebate and sales tax).
how can a storage company then justify $5000 per TB of storage, when you can get 1.2 TB of drive storage for under $550 today (you need a couple of addresses to send rebates to, but we all have lots of friends). sure, the enclosure costs something, but certainly not almost 10 times the cost of the spinning disks. i’ve heard presentations from the four large FC fabric vendors (qlogic, brocade, cisco, and mcdata), and they claim it costs just $500 per port to hook up FC storage array to your workstations. compare that to iSCSI at around $20 a port using commodity 1GbE PCI cards, or maybe $50 a port using 1394a/1294b (firewire 400/firewire800) networking.
you’re always going to pay a premium for the storage array, but should the cabling also cost just a much?
quick froogle.com pricing on empty storage arrays today, who know what dlink will price at:
$3580 4U 12-bay SATA backplane kingston storcase S10H108, SCSI 320 connections
$3240 1U 4-bay SATA backplane adaptec iSA1500 storage array, 1GbE connection
$3465 2U 8-bay promise vtrak M200i, dual 1GbE connections
chief information architect