a218@mindlink.UUCP (Charlie Gibbs) (05/30/90)
At work we receive Direct Access ("For Canada's information systems
professionals"). While reading the current issue (Vol. 6, No. 10,
May 25, 1990), I was pleased to notice that they acknowledge the
existence of the Amiga, with references to it in such things as
articles on viruses, etc. They also included the following article:
OPTICAL DRIVE FOR THE AMIGA 2000
An eraseable magneto-optical disk drive which is compatible with
the Commodore Amiga 2000 has been released by Xyxis Corp. of
Minneapolis, Mn. and distributed in Canada by Sak Data Products
Ltd. of Mississauga, Ont.
Called the Xyxis XY600RW, it is a high-density drive which is
accessed through an Amiga 2090 or 2090A SCSI interface board.
According to the firm, the Amiga can be booted directly from the
optical drive and the software supports AmigaDOS 1.3.
Each 5.25-inch industry-standard ISO format cartridge stores up
to 600 Mbytes of information.
The cartridge can be erased more than one million times, the firm
claims.
It can be removed from the drive for security or portability.
Interfaces to the Apple Macintosh, IBM AT and PS/2 are also
available for the XY600RW.
List price: $8,580.
--
Charlie_Gibbs@mindlink.UUCP
For every vision there is an equal and opposite revision.wizard@sosaria.imp.com (Chris Brand) (06/03/90)
In article <1950@mindlink.UUCP> a218@mindlink.UUCP (Charlie Gibbs) says: > Each 5.25-inch industry-standard ISO format cartridge stores up > to 600 Mbytes of information. I have a question there not exactly concerning the Amiga, so please forgive me to ask it here: The largest optical drive I heard of until now can save 1.2 gigabytes. Now, what is the limit of disk space with very big computers (cray? :-)? -- ------------------------------------ Chris Brand - wizard@sosaria.imp.com "Justice is the possession and doing of what one is entitled to" - Platon ------------------------------------
kosma%human-torch@stc.lockheed.com (Monty Kosma) (06/05/90)
Our connection machine has 50 gigabytes of hard disk (and we have the biggest CM datavault installation in the world right now).
swarren@convex.com (Steve Warren) (06/05/90)
In article <4574.AA4574@sosaria> wizard@sosaria.imp.com (Chris Brand) writes: >In article <1950@mindlink.UUCP> a218@mindlink.UUCP (Charlie Gibbs) says: > >> Each 5.25-inch industry-standard ISO format cartridge stores up >> to 600 Mbytes of information. > >I have a question there not exactly concerning the Amiga, so please forgive >me to ask it here: > >The largest optical drive I heard of until now can save 1.2 gigabytes. Now, >what is the limit of disk space with very big computers (cray? :-)? E-Systems here in Garland together with Ampex Corp. of Redwood City, CA is putting the finishing touches on a data storage system that is controlled by a Convex supercomputer and stores 1.1 terabytes. This system is supposed to be released sometime next year. This is their baseline system. The more elaborite systems they are planning will store petabytes. The storage on supers and mainframes is pretty much $$-limited. If you can afford the storage, vendors will probably figure out a way to hook it up to the machine ;^). -- _. --Steve ._||__ DISCLAIMER: All opinions are my own. v\ *| ---------------------------------------------- V {uunet,sun}!convex!swarren; swarren@convex.COM
bscott@nyx.UUCP (Ben Scott) (06/06/90)
In article <21013@snow-white.udel.EDU> kosma%human-torch@stc.lockheed.com (Monty Kosma) writes: >Our connection machine has 50 gigabytes of hard disk (and we have the I'd hate to have to back THAT up to floppy... (sorry couldn't resist) (more) seriously, does anyone know how many tape backup packages are out or in the making for the Amiga? I personally know of one major one in the works and have reliably heard of two more LOCALLY. I'm beginning to wonder if there's an epidemic going on. Also, I remember the thread on the VCR backup, but it seems to have died out. Why isn't there one of these little gadgets coming for the Amiga? With the exception of the slight problem in READING it back in it sounds like an easy enough device to implement. And with the huge market penetration of VCRs it would be very popular if marketed properly. . <<<<Infinite K>>>> -- |Ben Scott, professional goof-off and consultant at The Raster Image, Denver| |Internet bscott@nyx.cs.du.edu, FIDO 1:104/421.2 or Arvada 68K (303)424-9831| |"My brothers and sisters all hated me,'cause I was an only child!"-Weird Al| |"Do I detect the smell of burning martyr?" - Basil Fawlty | *AMIGA POWER* |
lphillips@lpami.wimsey.bc.ca (Larry Phillips) (06/06/90)
In <1267@nyx.UUCP>, bscott@nyx.UUCP (Ben Scott) writes: >In article <21013@snow-white.udel.EDU> kosma%human-torch@stc.lockheed.com (Monty Kosma) writes: >>Our connection machine has 50 gigabytes of hard disk (and we have the > >I'd hate to have to back THAT up to floppy... (sorry couldn't resist) Hell, I'd hate to back that up to 2 Gigabyte 8mm media! >(more) seriously, does anyone know how many tape backup packages are out or >in the making for the Amiga? I personally know of one major one in the works >and have reliably heard of two more LOCALLY. I'm beginning to wonder if there's >an epidemic going on. Count one here... and yes, it's an epidemic, I'm sure. I found what I _think_ is the last of the bugs in the restore program last night, and if the crash I am getting with backing up one particular directory is due to the disk contents, then the backup part is done too. At any rate, I will be releasing it within two weeks, probably one week. >Also, I remember the thread on the VCR backup, but it seems to have died out. >Why isn't there one of these little gadgets coming for the Amiga? With the >exception of the slight problem in READING it back in it sounds like an easy >enough device to implement. And with the huge market penetration of VCRs it >would be very popular if marketed properly. It is FAR, FAR easier to back up to a proper SCSI tape drive than to a VCR. There are some inordinately difficult problems with getting a reliable backup and restore from consumer video grade hardware. -larry -- The raytracer of justice recurses slowly, but it renders exceedingly fine. +-----------------------------------------------------------------------+ | // Larry Phillips | | \X/ lphillips@lpami.wimsey.bc.ca -or- uunet!van-bc!lpami!lphillips | | COMPUSERVE: 76703,4322 -or- 76703.4322@compuserve.com | +-----------------------------------------------------------------------+
kosma%human-torch@stc.lockheed.com (Monty Kosma) (06/09/90)
From: Larry Phillips <lphillips@lpami.wimsey.bc.ca>
Newsgroups: comp.sys.amiga
Date: 6 Jun 90 11:05:18 GMT
Arpa: usenet@udel.EDU, UUCP: ...{harv <usenet@ee.udel.edu>
Sender: amiga-relay-request@udel.edu
In <1267@nyx.UUCP>, bscott@nyx.UUCP (Ben Scott) writes:
>In article <21013@snow-white.udel.EDU> kosma%human-torch@stc.lockheed.com (Monty Kosma) writes:
>>Our connection machine has 50 gigabytes of hard disk (and we have the
>
>I'd hate to have to back THAT up to floppy... (sorry couldn't resist)
Hell, I'd hate to back that up to 2 Gigabyte 8mm media!
actually, funny you mention that, beacuse I do use a tape staging unit
as sort of a "virtual disk" (and the disk is sort of a "virtual RAM"...)--
we have a StorageTek tape unit which writes onto these 200MB tapes (wish
it used 2GB tapes!), but at least its transfer rate is (very) high...
With this setup I can do problems which go up to around two rank 80000
(dense!) double precision complex matrixes, and that just about fills
up 1000 tapes...wizard@sosaria.imp.com (Chris Brand) (06/09/90)
In article <102799@convex.convex.com> swarren@convex.com (Steve Warren) says: > The storage on supers and mainframes is pretty much $$-limited. > If you can afford the storage, vendors will probably figure out > a way to hook it up to the machine ;^). One way to get large storage seems be hooking together several drives so that they are treated like one by the OS. Is this somehow possible with it Amiga? -- ------------------------------------ Chris Brand - wizard@sosaria.imp.com "Justice is the possession and doing of what one is entitled to" - Platon ------------------------------------
FelineGrace@cup.portal.com (Dana B Bourgeois) (06/16/90)
Chris Brand asked about what IBM mainframe people call DASD. Direct Access Storage Device. Anyway, on mainframes, the file system doesn't know hwwhat the underlying disk looks like. So files can bridge devices without any problem. I don't think the Amiga file system can support this now. Am I mistaken? If the files are limited to the device size, are there plans to fix this in future OS releases? Dana Bourgeois @ cup.portal.com ** this is a question based on idle curiosity. *I* don't have any files larger than, oh, 100 megabytes.
cmcmanis@stpeter.Eng.Sun.COM (Chuck McManis) (06/16/90)
In article <30810@cup.portal.com> (Dana B Bourgeois) writes: >... I don't think the Amiga file system can support >this now. Am I mistaken? If the files are limited to the device size, >are there plans to fix this in future OS releases? A little bit. The Amiga Disk I/O subsystem is structured as a series of layers, the top most is the file system handler which sends and receives DOS packets to applications, the next level down is the device driver which communicates with it's clients via exec messages. The current filesystem handler has a one to one correspondence between the device it is controlling and filesystem it places there. However, there is no reason one couldn't write a filesystem handler that uses several devices to actually store the data, or several instances of media from one device to store the data. Consider a "virtual" hard disk which was actually stored on 20 floppy disks. The handler would have to periodically have to put up a requester asking for a different disk but the concept is possible. Applications would be able to use this funky disk because I they do is talk the handler packet protocol which is the "same" for all file system handlers. Additionally, the handler could be left alone and some smarts could be placed into a scsi device driver that would create a virtual disk out of 2 or more physical disks. This is how some people build fault tolerant disk drives for PC's and such, generally they take it a step further and have a SCSI interface with some firmware which exports the SCSI protocol etc etc. Anyway, the answer is that the OS supports the concept, the handlers and device drivers that are currently shipped do not. However, there are legitimate ways to replace the shipped handlers and device drivers to "bolt" on the capability in an OS friendly way. -- --Chuck McManis Sun Microsystems uucp: {anywhere}!sun!cmcmanis BIX: <none> Internet: cmcmanis@Eng.Sun.COM These opinions are my own and no one elses, but you knew that didn't you. "I tell you this parrot is bleeding deceased!"