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what is the basic Difference between open system and mainframe ?
what is the basic Difference between open system and mainframe ?
Unsolved
This post is more than 5 years old
148 Posts
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7166
what is the basic Difference between open system and mainframe ?
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PedalHarder
465 Posts
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February 9th, 2011 17:00
Here are a few key differences:
- DISK format / geometry is different. Open uses FBA (Fixed Block Architecture), MF uses CKD (Count Key Data)
- Connection between processor and storage... Open uses Fibre Channel/SCSI etc (SCSI commands). MF uses ESCON/FICON (PSW's - Program Status Words)
- Character sets... Open uses ASCII, MF uses EBCDIC.
- User interface is quite different.
- Mainframe is IBM proprietary.
- In Mainframe you always type in UPPER CASE
- Mainframe admins:
--- Will (in general) have less hair than open guys
--- Will (in general) larger tummies than open guys
--- Will not drink out of a cup with /dev/mug printed on it.
--- May have plastic blow-up dinosaur sitting somewhere on their desk.
OK, my tongue is planted in my cheek on those last points... I'm allowed coz I'm a mainframe guy :-)
There are lots of difference really... What specifically are you wanting to know?
RRR
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February 10th, 2011 00:00
Hahahaha, I especially like the /dev/mug ! Can I order that one anywhere ??
RobertDudley
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February 10th, 2011 06:00
Google search to the rescue:
http://www.cafepress.com/+dev+mugs
dynamox
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February 10th, 2011 06:00
ahh ..so true, it might be the next hot skill to have
dynamox
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February 10th, 2011 06:00
i don't know about all that, banking, healthcare ..still live and kicking and not going anywhere.
RobertDudley
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February 10th, 2011 06:00
You also forgot that most mainframers are near retirement.
Open systems people have no idea what channel end device end means.
RRR -- if you find a mug send me the URL so I can order one too please.
RobertDudley
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February 10th, 2011 06:00
dynamox not the hardware the people - mainframer = person who is mainframe centric.
And i agree the mainframe itself isnt going anywhere anytime soon; they are too big and heavy.
RRR
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February 10th, 2011 08:00
Hahaha. Too big and heavy.... LOL
They did that on purpose !
dynamox
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February 10th, 2011 09:00
what are you talking about ? Our mainframe is sexy and agile
. I bet you can't say the same thing about your HPUX box that keeps droppig paths. hehe
RRR
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February 10th, 2011 09:00
the ability to lift these dynosaurs out of the data center ?
RRR
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February 10th, 2011 17:00
Nope, that's a cute little HP Blade thing.....