-----Original Message----- From: Werner Kuehnel <[EMAIL PROTECTED]> To: [email protected] Sent: Tue, 7 Jun 2005 12:15:54 +0200 Subject: Additional DASD devices
Can someone tell me please, what storage areas will be used if I add let's say 4096 DASD devices (new DASD subsystem) to my HCD configuration? I seem to recall a situation months ago, when we defined our new STK V2XF with the maximum of addresses, the available private region went down by 1 MB. Unfortunately I can't remember what areas caused this. Werner I/O devices, channels, control units, etc., are described by control blocks that are in the part of central storage called the Hardware Storage Area (HSA), which is allocated from the top down. These control blocks are normally accessed and accessible only by the channel subsystem. Most of them are not documented in the Principles of Operations. I don't remember if there is any MVS operator command that can display how large the HSA is. Bill Fairchild ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
