Johnson was a clueless idiot. Thank god he’s gone. The nines are marketing bollocks. It doesn’t matter how robust single system availability is if your network provider only provides 99.99. They likely offer 99.9999 but read the small print. Credits aren’t much use if your ATM network is down. This is the accepted industry standard and AWS tiering offers this.
When comparing the mainframe to other platforms we should focus on the strengths and not yap on about 9s. We don’t need to worry about the CAP theorem, clock skew, network partition, garbage collection overruns triggering cluster rebalancing or other distributed system nasties. > On 26 Jun 2024, at 20:52, Allan Staller > <00000632b4c7ca99-dmarc-requ...@listserv.ua.edu> wrote: > > Classification: Confidential > > 3 nines of availability is so 80's. Even back then IBM was claiming 6 nines > for a properly configured parallel sysplex. > > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of > Ed Jaffe > Sent: Tuesday, June 25, 2024 4:39 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: LOL - AWS brags about 99.9% uptime! > > [CAUTION: This Email is from outside the Organization. Unless you trust the > sender, Don't click links or open attachments as it may be a Phishing email, > which can steal your Information and compromise your Computer.] > >> On 6/10/2024 4:21 PM, Charles Mills wrote: >> https://grap/ >> hite.dev%2Fblog%2Fhow-amazon-deploys-code&data=05%7C02%7Callan.staller >> %40HCLTECH.COM%7C3a233e64724d45df86c108dc955f57d4%7C189de737c93a4f5a8b >> 686f4ca9941912%7C0%7C0%7C638549483946609698%7CUnknown%7CTWFpbGZsb3d8ey >> JWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7 >> C%7C%7C&sdata=P5Iff9rT1MQpxjzSvxco%2FM6dxubwE1a4H8whRLXypkc%3D&reserve >> d=0 >> >> Aiming for only (!) four minutes of downtime a month! > > Three nines?! Yikes! > > IBM now touts eight nines (99.999999) on IBM Z with everything properly > configured and fully redundant. > > https://www.ibm.com/z/resiliency > > -- > Phoenix Software International > Edward E. Jaffe > 831 Parkview Drive North > El Segundo, CA 90245 > https://www.phoenixsoftware.com/ > > > -------------------------------------------------------------------------------- > This e-mail message, including any attachments, appended messages and the > information contained therein, is for the sole use of the intended > recipient(s). If you are not an intended recipient or have otherwise received > this email message in error, any use, dissemination, distribution, review, > storage or copying of this e-mail message and the information contained > therein is strictly prohibited. If you are not an intended recipient, please > contact the sender by reply e-mail and destroy all copies of this email > message and do not otherwise utilize or retain this email message or any or > all of the information contained therein. Although this email message and any > attachments or appended messages are believed to be free of any virus or > other defect that might affect any computer system into which it is received > and opened, it is the responsibility of the recipient to ensure that it is > virus free and no responsibility is accepted by the sender for any loss or > damage arising in any way from its opening or use. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ::DISCLAIMER:: > ________________________________ > The contents of this e-mail and any attachment(s) are confidential and > intended for the named recipient(s) only. E-mail transmission is not > guaranteed to be secure or error-free as information could be intercepted, > corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses > in transmission. The e mail and its contents (with or without referred > errors) shall therefore not attach any liability on the originator or HCL or > its affiliates. Views or opinions, if any, presented in this email are solely > those of the author and may not necessarily reflect the views or opinions of > HCL or its affiliates. Any form of reproduction, dissemination, copying, > disclosure, modification, distribution and / or publication of this message > without the prior written consent of authorized representative of HCL is > strictly prohibited. If you have received this email in error please delete > it and notify the sender immediately. Before opening any email and/or > attachments, please check them for viruses and other defects. > ________________________________ > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
