Ted, Good observation. I pulled up the configuration information for our DS6800 and looked at the help screens. Following is what they say.
<quote> 3380 Mod 2, 3380 Mod 3, 3390 Standard Mod 3, 3390 Standard Mod 9, or 3390 Custom. This is primarily a capacity attribute. For a 3380 cylinder, the logical volume is a CKD device with a 3380 track format and 16bit cylinder addressing. For a 3390 cylinder, the logical volume is a CKD device with a 3390 track format and 16bit cylinder addressing. </quote> Ours is all configured as 3390 mod 9 so I didn't even look at what kind of 3380 emulation it does. Actually going through the configuration screens, I get the same 5 options. I just went through a mock configuration and it appears as though what the DS6800 folks claim as a 3380 mod 2 is actually an emulation to a 3380-E and a 3380 mod 3 is emulating a 3380-K. I have 2226 "cylinders" or 1.76 GB free on one of my DS6800 LCU's and I would be able to carve out one 3380 mod 2 but zero 3380 mod 3 devices. The old 3380E was somewhere around 1670 cylinders or 1.26 GB per volume and a mod K was 2655 cylinders or 1.89 GB per volume. So my assumptions are on the space fitting in what I have free. Rex -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Ted MacNEIL Sent: Monday, March 19, 2007 2:57 PM To: [email protected] Subject: Re: IBM DS6000 experiences >The DS6800 only supports 3380 Mod-3 and Mod-9 Interesting. It supports devices that do not exist. There were: The original 3380's, 3380-D, 3380-E, 3380-J, & 3380-K's. Which two did you mean? - Too busy driving to stop for gas! ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
