If you had 3990-6 control units, you could do the equivalent of RAID1 called
dual-copy on real 3390s. I remember swapping HDA's on several occasions
concurrently using that capability.
Dana
On Mon, 2 Jun 2014 19:26:05 +, DASDBILL2 dasdbi...@comcast.net wrote:
I am thinking only of a SLED
I know it has been decades since IBM manufactured its last real CKD
controller, but what was the exact date when the last new one was shipped?
Just curious.
Bill Fairchild
- Original Message -
From: Anne Lynn Wheeler l...@garlic.com
To: IBM-MAIN@LISTSERV.UA.EDU
Sent: Monday, June
dasdbi...@comcast.net (DASDBILL2) writes:
I know it has been decades since IBM manufactured its last real CKD
controller, but what was the exact date when the last new one was
shipped?
re:
http://www.garlic.com/~lynn/2014g.html#82 Costs of core
http://www.garlic.com/~lynn/2014g.html#83 Costs
Sent: Monday, June 2, 2014 9:55:46 AM
Subject: Re: real vs. emulated CKD
dasdbi...@comcast.net (DASDBILL2) writes:
I know it has been decades since IBM manufactured its last real CKD
controller, but what was the exact date when the last new one was
shipped?
re:
http://www.garlic.com/~lynn
: Re: real vs. emulated CKD
I will rephrase my question. When did any vendor last ship a 3390 DASD to
anyone with non-RAID SLEDs inside for use on any kind of operating system which
did not have direct support for FBA in its customer-usable access method
repertoire? There must have been some
rpomm...@sfgmembers.com (Pommier, Rex) writes:
While I don't know when the 3390s last rolled off the assembly line, I
believe they were all SLEDs. After that came the short-lived
9340/9345 subsystem which had a different track length than the 3390
(built on 5 1/4 inch drives), then the RAMAC
On Mon, 2 Jun 2014 17:24:44 +, DASDBILL2 wrote:
I will rephrase my question. When did any vendor last ship a 3390 DASD to
anyone with non-RAID SLEDs inside for use on any kind of operating system
which did not have direct support for FBA in its customer-usable access method
repertoire?
- Original Message -
From: Rex Pommier rpomm...@sfgmembers.com
To: IBM-MAIN@LISTSERV.UA.EDU
Sent: Monday, June 2, 2014 12:39:28 PM
Subject: Re: real vs. emulated CKD
Bill,
While I don't know when the 3390s last rolled off the assembly line, I believe
they were all SLEDs. After
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: real vs. emulated CKD
I am thinking only of a SLED that was implemented without RAID, regardless of
how real or quasi its CKD-ness was. I am satisfied with knowing that it was
around 12/31/96 for the 3390 and possibly a little for the 9340, but only
W dniu 2014-06-02 19:24, DASDBILL2 pisze:
I will rephrase my question. When did any vendor last ship a 3390 DASD to
anyone with non-RAID SLEDs inside for use on any kind of operating system which
did not have direct support for FBA in its customer-usable access method
repertoire? There must
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