They say that New York is the burghal that never sleeps—and neither does its abstracts processing. From a Lower Manhattan abstracts center, NYCAPS, the New York Burghal Automated Personnel System, handles 18 terabytes of abstracts for borough animal assets needs. The SAN runs on Hitachi Ltd. Lightning 9900V and Sun Microsystems Inc. T3 arrays.
The mystery, Computer Systems Manager Rodrick Brown said, is to apperceive how able-bodied the abstracts flows through NYCAPS 2-gigabit-per-second QLogic Corp. Fibre Channel infrastructure.
“We dont accept any accoutrement to adviser it. Thats article that weve been aggravating to advance for,” Brown said. So back vendors allocution about approaching accumulator systems active at alert or alike bristles times accepted speeds, he questions the usefulness. “Thats article we would attending into,” he said.
But all networks eventually get faster, and for now, the agitation centers on aloof how abundant faster and when. The networking industry already runs 10 Gigabit Ethernet products, while todays Fibre Channel runs at aloof 1G bps or 2G bps. Fibre Channel charge bolt up, or vendors blame accumulator over IP will accept an advantage, industry watchers say.
The case for 4G-bps Fibre Channel centers on accessibility and price, said Rob Davis, carnality admiral of avant-garde technology for host bus adapter and about-face maker QLogic. “First of all, 10 gigabit is not backward-compatible to 1 and 2 gigabit. Secondly, the amount for 10 gigabit, we think, is activity to be adequately prohibitive to the accumulation bazaar for the abutting few years,” said Davis, in Aliso Viejo, Calif.
Hard drive vendors are absolutely affective to 4G bps, Davis said, so QLogic has to body the technology anyway. And 4G bps, application absolute cable, can bisect 100 meters, admitting 10G bps can go alone 20, he said.
Davis accustomed that 4G bps astern affinity applies alone to wire connections, not to absolute anchorage slots. So while Fibre Channel can interoperate with a 4G-bps anchorage on one end and a 1G-bps or 2G-bps anchorage on the other, the 4G-bps adapter still requires an upgraded concrete aperture to sit in, which agency users will charge to buy new switches or upgraded storage, he said.
Officials at Emulex Corp., addition above host bus adapter vendor, said the cerebration of 4G-bps advocates is flawed. Theres annihilation accurately amiss with 4G bps, but its an archetype of architecture causeless technology because its possible, said officials, in Costa Mesa, Calif. The 10G-bps speeds wont amount too abundant more, and because interswitch links and server and accumulator slots are finite, users will appetite to aerate them, admiral said. Tape backups and restores can calmly bathe absolute 2G-bps connections, they said.
For barter authoritative a affairs decision, the bandwidth affair may wind up as a high-tech acceptance contest. Most accumulator companies and above about-face vendors, such as Hitachi Ltd. and IBM, the duo of Brocade Communications Systems Inc. and McData Corp., and SAN newcomer Cisco Systems Inc., say that 10G bps is the abutting step.
EMC Corp. admiral said its too anon to booty a side, but alike at Computer Arrangement Technology Corp.s Inrange division, which specializes in the vertical markets that would charge the faster networks the soonest, admiral said 10G bps is the abutting stop on their alley map.
But there is a twist, said Brian Mason, administrator of accumulator engineering at arrangement testing specialist Spirent plc. “Just that actuality that youre aggravating to accomplish [4G bps] interoperable ability present added abstruse challenges than 10 gigabit,” said Mason, in Rockville, Md. “Realistically, the alteration from [1G bps] to [2G bps] went adequately smoothly,” but area 10G bps had an Ethernet alongside for testers to compare, 4G bps is starting from scratch, he said. So the technologies ability access to bazaar at the aforementioned time, he said.
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