I could have written the exact the same story - just need to strike the "and TPF" words and the word airline.. Ah if only we had this IBMVM list back then, we could have commiserated together. The most fun was losing the volume with the directory on a Friday afternoon. Nowadays, none of that fun. Just microcode !!
Marcy "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Schuh, Richard Sent: Monday, March 09, 2009 4:45 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: [IBMVM] Must be Friday: Mainframe USBs! I haven't experienced a failure of an HDA since the days the airline only allowed VM to have 3380-A04 and -B04 devices that were hand-me-downs from MVS and TPF. It took a week of 7 HDA failures during the 5 day work week, all housing critical data, before they finally bought new DASD for VM. I think most of the replacement HDAs were cannibalized from devices sitting on the loading dock waiting for someone to haul them away. One died less than an hour after we finished a restore. No big deal, it only took 6.5 hours to do that restore.. Regards, Richard Schuh ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Dave Wade Sent: Monday, March 09, 2009 4:27 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Must be Friday: Mainframe USBs! I remember having a 3370 (I think) replaced on a 4331. The CE said the reason the MAP ran for so many pages was that the Head and Drive assembly (HDA) was the most expensive part of the drive, so the Diagnostic floppy would exhaustively test every component before it failed the Head and Drive Assembly. He was pretty sure it was the HDA and arrived with one, which was left to acclimatize (I think it needed 4 hours) while he ran through the MAP. Glorious days, Dave Wade G4UGM Illegitimi Non Carborundum -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of David Boyes Sent: 09 March 2009 15:47 To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Must be Friday: Mainframe USBs! The 308x had a FBA device for the support processor to use. Wasn't customer accessible, though. I remember helping a CE replace one once when it failed on a 3081D. Messy. The MAP ran for tens of pages. On 3/9/09 11:42 AM, "Edward M Martin" <emar...@aultman.com> wrote: I believe that the 3090 or something similar. It has been awhile since the CE and I talked about devices.
