Re: z/VM I/O Concurrency

Tue, 25 Apr 2006 13:18:37 -0700

Wasn't that the one with the single read/write head on an arm that would do a seek to the platter before it started going after the rec.  If I remember correctly, CE's would normally keep a big pan underneath to catch the constant drippings of hydraulic oil.  I remember something like that, altho it may have been the S/360 reincarnation of the 2nd generation drive, just as the 2311 bore a striking resemblance to a 1311.
Jim

At 02:34 PM 4/25/2006, you wrote:
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And I thought I was the only one left that remembered the six foot tall disk
drive on the RAMAC 305.
 
-----Original Message-----
From: The IBM z/VM Operating System [ mailto:IBMVM@LISTSERV.UARK.EDU]On
Behalf Of Schuh, Richard
Sent: Tuesday, April 25, 2006 1:13 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: z/VM I/O Concurrency


 
 
Regards,
Richard Schuh
 
 
. Again, this is a HARDWARE restriction that goes back to the dark ages of
s/360.
 
 
Or farther. Anyone remember the disks used by the 1410 (the model number
escapes me, as do so many things of late) or the RAMAC 305? Besides, the
S/360 introduced "The Age of Enlightenment", didn't it?
--
John McKown
Senior Systems Programmer
HealthMarkets
Keeping the Promise of Affordable Coverage
Administrative Services Group
Information Technology




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And I=20 thought I was the only one left that remembered the six foot tall disk = drive on=20 the RAMAC 305.
 
-----Original Message-----
From: The IBM z/VM = Operating=20 System [ mailto:IBMVM@LISTSERV.UARK.EDU]On Behalf Of Schuh,=20 Richard
Sent: Tuesday, April 25, 2006 1:13 PM
To:=20 IBMVM@LISTSERV.UARK.EDU
Subject: Re: z/VM I/O=20 Concurrency

 

 

Regards,

Richard = Schuh

<= SPAN class=3DEmailStyle16>

 

. Again, this is=20 a HARDWARE restriction that goes back to the dark ages of=20 s/360.

 

 

Or farther. Anyone = remember the disks used=20 by the 1410 (the model number escapes me, as do so many things of late)=20 or the RAMAC 305? Besides, the S/360 introduced "The Age of = Enlightenment",=20 didn't it?

--
John=20 McKown
Senior Systems Programmer
HealthMarkets
Keeping the = Promise of=20 Affordable Coverage
Administrative Services Group
Information=20 Technology



<< ella for = "" Control >> has removed=20 3894 VSE-List messages and set aside 2216 VM-List = for="" me
You can use it too - and it's FREE!  www.ellaforspam.com
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Jim Bohnsack
Cornell Univ.
(607) 255-1760


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