Hi Chris, We IPL VM once a month, mostly to keep the operators in practice. The main challenge is spooled console logs getting so big or getting so old that when there is an IPL, the automated spool file maintenance routines delete them immediately. This is easily handled by an EXEC or two to close spools files at midnight.
Peter -----Original Message----- From: Linux on 390 Port [mailto:[email protected]] On Behalf Of Will, Chris Sent: May 27, 2015 10:34 AM To: [email protected] Subject: Are weekly z/VM IPLs necessary? We have gotten in the habit of IPLing our z/VM and zLinux guests every Sunday during our standalone window. With the window shrinking and the need for 24/7 availability is it really necessary to IPL every week? If not what potential problems could we run into by not doing the IPL (memory leaks, logs filling etc.). This is in comparison to the Intel side of the shop (Red Hat, Windows) where they go months between IPLs. The only benefit I see is the opportunity to recycle WMB execution groups. Chris Will The information contained in this communication is highly confidential and is intended solely for the use of the individual(s) to whom this communication is directed. If you are not the intended recipient, you are hereby notified that any viewing, copying, disclosure or distribution of this information is prohibited. Please notify the sender, by electronic mail or telephone, of any unintended receipt and delete the original message without making any copies. Blue Cross Blue Shield of Michigan and Blue Care Network of Michigan are nonprofit corporations and independent licensees of the Blue Cross and Blue Shield Association. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review retransmission dissemination or other use of or taking any action in reliance upon this information by persons or entities other than the intended recipient or delegate is strictly prohibited. If you received this in error please contact the sender and delete the material from any computer. The integrity and security of this message cannot be guaranteed on the Internet. The sender accepts no liability for the content of this e-mail or for the consequences of any actions taken on the basis of information provided. The recipient should check this e-mail and any attachments for the presence of viruses. The sender accepts no liability for any damage caused by any virus transmitted by this e-mail. This disclaimer is property of the TTC and must not be altered or circumvented in any manner. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
