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Technology Stocks : Disk Drive Sector Discussion Forum -- Ignore unavailable to you. Want to Upgrade?

To: Thean who wrote (1391)	11/1/1997 9:29:00 PM
From: LK2	Read Replies (2) \| Respond to of 9256

Hedge fund that is negative on disk drive sector- Current issue of Barron's, 11-3-97, page 66. Raj Rajaratnam runs a hedge fund that invests only in technology. >>Among his current targets (for shorts): the disk drive producers and their suppliers, and makers of PC graphics chips. Both groups, he says, face serious pricing pressures.<< Kind of makes you wonder--how low can they go? -LK

To: Thean who wrote (1391)	11/2/1997 6:41:00 PM
From: Chuck Bleakney	Respond to of 9256

RAID is a box full of hard drives that has some extra error correction built into it... primarily the ability to loose one or more drives and still be able to function. Some fail over to an alternate drive(s) when problems occur. Some can even fail over to an entire separate RAID box (high availability mission critical raid) and many(if not all) allow "Hot Swap" which is that you can pull out the dead drive and plug a new one in without powering down the raid box. There are a whole bunch of levels of RAID available depending upon the needs of the user. Raid is one of EMC's specialties... There are plenty of other computer companies that offer raid boxes, HP, SUN, DEC, IBM, etc. I hope this addressed your question... Chuck

To: Thean who wrote (1391)	11/2/1997 11:19:00 PM
From: Dwight E. Karlsen	Read Replies (1) \| Respond to of 9256

RAID = Redundant Array of Independent Disks; the same information is written to multiple platters. Not only does this provide measures of safety for continuous (24 hr/7 days a week) operation, but during peak access times if more than one request is made for information from the same file at the same time, the information can be retrieved for more than one request simultaneously. Thus RAID systems are not only safer but faster as well (and more expensive of course).