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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 203.14

-0.8%

Jan 9 9:30 AM EST

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To: Tony Viola who wrote (49270)	7/28/2001 3:30:46 AM
From: pgerassi	Read Replies (1) of 275872

Dear Tony: How do you fit 5 18GB 15K RAID5 drives in a 1U server case with 2 bays? You don't! You buy a 2U or 3U case that they fit into and connect it to your 1U server via a SCSI cable. You get SCA versions and dual hot swap PSs so that if one goes bad, you just pull it and replace with a good one. That is what that SCSI connector is on the back plate of the controller card is for. Ditto for fibre channel. Its the way the old Sun "pizza box" workstations were expanded. You had a chain of SCSI connected disk, tape, and CD drives plus the scanner. But, you seem to think that if it doesn't fit in the base enclosure, get a bigger server and that has more room in its base enclosure. Get, real! A GS320 has 30 7 slot PCI busses and that does not fit in the standard enclosure. It adds expansion enclosures till all fit in. Ditto for all that storage. A 3 cabinet base enclosure can add 8 more for PCI slots and as many for attached disk as needed (SCSI for close ones and fibre channel for the far ones). Your reading comprehension leaves a lot to be desired. I did not say the line printers were rack mounted. If you have ever seen 900-1800 lpm printers, they come in their own stand with the stand designed to minimize the noise produced by one in full swing. Also be prepared for it to get regular service as they need it every 3 to 6 months in heavy work loads. An 1800 lpm printer would average about 20 pages every minute. About 1000 pages of 3 part paper fits in a box (carbonless). Thus, in less than a hour, a box would be used up. And to think that only 4KB/sec sustained is required to keep one running. At one company, it took three 12 hours a day to keep up with the volume required and that was with a small RS/6000 server ($20-30K with today's prices). Pete

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