Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!samsung!uunet!xstor!billbr
From: billbr@xstor.com (Bill Brothers)
Newsgroups: comp.periphs.scsi
Subject: Re: More advice sought for r/w optical system
Message-ID: <1991Mar06.164816.11543@xstor.com>
Date: 6 Mar 91 16:48:16 GMT
References: <1991Feb13.134708.3440@news.larc.nasa.gov] <3721@island.COM>
Organization: Storage Dimensions, Inc.
Lines: 22

In article <3721@island.COM] hue@island.COM (Pond Scum) writes:
]In article <1991Feb13.134708.3440@news.larc.nasa.gov> kristi@arbs1.larc.nasa.gov (Kristi Skeens) writes:
]>
]>I am seeking advice/recommendations for an optical disk storage system to connect to a PC. The disk will be hooked up to a system that will be retrieving atmospheric measurements in real-time, therefore, fast writing speed is a must.
]>I know very little about optical systems, so any information would be helpful.
]
]SCSI Magneto-Optical drives typically write around 70k bytes/sec.  In order
]to speed up writes, you have to keep the unused blocks on the disk in the
]erased state.  If you do that, you can suppress the pre-erase pass during
]writes and will see something around 200K bytes/sec.  I doubt any vendor
]can supply a driver which does what I just described, so you'll probably
]have to write your own.
]
]
]-Jonathan	hue@island.COM


You might be quite surprised at what some subsystem folks do...

Bill Brothers
Storage Dimensions, Inc.
billbr@xstor.COM