John, It depends on how far you want the hardware/software to get before if fails. For example:
- If you have access to the HMC, rename the IMAGE profile of the LPAR your sandbox system runs in. Then De-activate that LPAR. If someone attempts to IPL that LPAR, it will fail, LPAR not activated. If someone attempts to activate that LPAR, the activate will fail because the IMAGE profile does not exist. Once you finish with your maintenance, rename the IMAGE profile of that LPAR back to its original name. NOTE: The HMC Application does not have a rename function. I circumvent this 'editing' ( the customize function ) the profile I want to rename, change the Profile Name on the 1st customization screen, Save the 'new' Profile, then delete the 'original' Profile. - Use the NOBOOTSTRAP parameter of the ICKDSF REFORMAT command against the Sysres volume you're working on. CAUTION: DO NOT use INIT command. Once you finish with your maintenance, perform ICKDSF REFORMAT command with BOOTSTRAP & IPLDD parameters to 're-install' the correct z/OS IPL text. - The other suggestions regarding the LOADxx member are good. However, if you don't want your Sysres volume to be access, these may not meet your requirement. HTH Glenn Miller --------------------------------------------------------------------------- This message (including any attachments) is confidential and may be privileged. If you have received it by mistake please notify the sender by return e-mail and delete this message from your system. Any unauthorised use or dissemination of this message in whole or in part is strictly prohibited. Please note that e-mails are susceptible to change. ABN AMRO Bank N.V. (including its group companies) shall not be liable for the improper or incomplete transmission of the information contained in this communication nor for any delay in its receipt or damage to your system. ABN AMRO Bank N.V. (or its group companies) does not guarantee that the integrity of this communication has been maintained nor that this communication is free of viruses, interceptions or interference. --------------------------------------------------------------------------- ---------------------------------------------------------------------- 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
