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New My (limited) understanding
In the client server world, applications use a DB engine -- Oracle, SQL Server, Postgres -- which is itself an app that stores data on a filesystem. In the MF world, the app and data are pretty much considered the same thing -- some of the frame guys here talk about "the Foo database" when in fact they mean the entire set of data and all code for accessing it. In that environment, the "filesystem" has as much impact on performance as the DB engine and its associated tuning parameters.
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Purveyor of Doc Hope's [link|http://DocHope.com|fresh-baked dog biscuits and pet treats].
[link|http://DocHope.com|http://DocHope.com]
New Wasn't that supposed to be one of the magical things about
... the [link|http://en.wikipedia.org/wiki/AS/400|AS/400] OS/400 combo? That is, the DB is intimately tied to the OS and the hardware in ways that Oracle and the like, built on top of the OS, weren't.

If that's the case, then I still wonder where the greybeard in the original post is coming from.

Cheers,
Scott.
New Maybe the 400 was bringing that from the frame world ...
... down to the midrange world. If so, that would support what I was told.
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Purveyor of Doc Hope's [link|http://DocHope.com|fresh-baked dog biscuits and pet treats].
[link|http://DocHope.com|http://DocHope.com]
New Yup "DB2/400" IS the filesystem.

Imric's Tips for Living
  • Paranoia Is a Survival Trait
  • Pessimists are never disappointed - but sometimes, if they are very lucky, they can be pleasantly surprised...
  • Even though everyone is out to get you, it doesn't matter unless you let them win.


Nothing is as simple as it seems in the beginning,
As hopeless as it seems in the middle,
Or as finished as it seems in the end.
 
 
New As an interesting side note
there are APIs available on warp that let you do the same thing; you can take a physical disk and write a program that will access it directly. You have to create the disk structures yourself, but you can (reportedly) get incredible performance out of the system by doing this.
--\n-------------------------------------------------------------------\n* Jack Troughton                            jake at consultron.ca *\n* [link|http://consultron.ca|http://consultron.ca]                   [link|irc://irc.ecomstation.ca|irc://irc.ecomstation.ca] *\n* Kingston Ontario Canada               [link|news://news.consultron.ca|news://news.consultron.ca] *\n-------------------------------------------------------------------
New So, explain what "Oracle's Raw Disk Access" is?
Exactly the same DAMN thing. Well, not really but close enough that the miniscule advantage isn't really worth the cost.
--
[link|mailto:greg@gregfolkert.net|greg],
[link|http://www.iwethey.org/ed_curry|REMEMBER ED CURRY!] @ iwethey
Freedom is not FREE.
Yeah, but 10s of Trillions of US Dollars?
SELECT * FROM scog WHERE ethics > 0;

0 rows returned.
     So what's UFAM? - (drewk) - (18)
         you sure he said ufam? - (boxley) - (8)
             google UFAM mainframe - (drewk) - (7)
                 Appears to be a file format? - (ChrisR) - (6)
                     My (limited) understanding - (drewk) - (5)
                         Wasn't that supposed to be one of the magical things about - (Another Scott) - (4)
                             Maybe the 400 was bringing that from the frame world ... - (drewk)
                             Yup "DB2/400" IS the filesystem. -NT - (imric) - (2)
                                 As an interesting side note - (jake123) - (1)
                                     So, explain what "Oracle's Raw Disk Access" is? - (folkert)
         Clueless - (broomberg)
         Please have the grey beards define UFAM for you. - (folkert) - (2)
             So? (Playing devil's advocate) - (drewk) - (1)
                 HAHA. - (folkert)
         Any real definition of UFAM? - (folkert) - (1)
             I don't have a dog in that fight - (drewk)
         And my MF guru's response: - (broomberg) - (2)
             First link on Google seemed to be referencing it - (drewk) - (1)
                 And when you ask - (broomberg)

But he doesn't look quite skeletal enough for both to be true, does he?
86 ms