If memory serves, and it's been a long time since I had need of this knowledge, I'm afraid it is a blocking issue. All 3390s have a 56664 track capacity. If you multiply that by 15 tracks/cyl times 10017 cyls you get 8.514 billion bytes & change (as promised). I can't remember how to figure the IRG anymore, and I really don't want to start a track capacity sideshow, but when you format the device in 4K blocks you only get 12 blocks/track. At 48k/track, you're only going to get 7.385 billion bytes of useable space. Not really the salesman's fault, if a system could write full tracks, it could use the space. It's not like very many of us really have 3390s anymore, just devices that try to emulate them and do a good job of wasting space in the process.
> Return-Path: <[EMAIL PROTECTED]> > X-Server-Uuid: 3789b954-9c4e-11d3-af68-0008c73b0911 > MIME-Version: 1.0 > X-WSS-ID: 11CC408D659685-01-01 > Content-Type: text/plain; charset=iso-8859-1 > Content-Transfer-Encoding: 7bit > Approved-By: "Higgins, Joseph (ECSS)" <[EMAIL PROTECTED]> > Sender: Linux on 390 Port <[EMAIL PROTECTED]> > From: "Higgins, Joseph (ECSS)" <[EMAIL PROTECTED]> > Subject: Resolving Reiser storage and IBM 3390 devices > To: [EMAIL PROTECTED] > Precedence: list > > IBM states that a 3390-9 device as 10,017 cylinders which they convert to 8.3 GB (8514 MB per volume). > When we define a volume to LINUX as a Reiser device we end up with 7.1 GB available. > I can see losing some space to blocking differences but 1.2 GB seems a bit much. > Does anyone have any insight. > > Thanks. Steve Arden [EMAIL PROTECTED] IBM-Global Services @ Lucent (630)979-7124
