Re: STP Question
Our LPARs are being hosted on a single CEC which also might include other client LPARs. All I'm seeing in operlog is that the STP timing network for this CEC doesn't have backup or arbiter servers assigned. Mark Jacobs Vernooij, CP (ITOPT1) - KLM wrote: Do you really get a stand-alone CEC or are your LPARs placed on one of the outsourcers machines? If so, they will probably have STP and provide a reliable time. And of course Gil is right: if not, you can configure STP to a timeserver to keep your time accurate. Kees. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Mark Jacobs - Listserv Sent: 20 January, 2016 13:15 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: STP Question It's being configured that way by our outsourcer, we no longer have control over the configuration. I agree with you, but wanted to see if there's any additional risk to our environment in this configuration. Mark Jacobs Vernooij, CP (ITOPT1) - KLM wrote: The main reason of STP is to coordinate time between the CECs. When you have only one, there is nothing to coordinate anymore. Kees. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Mark Jacobs - Listserv Sent: 19 January, 2016 21:06 To: IBM-MAIN@LISTSERV.UA.EDU Subject: STP Question We're moving from a three CEC configuration, with all STP rolls, Primary/Backup/Arbiter defined, to a singe CEC that's defined as the Primary, with no backup or arbiter defined to the STP network. I'm not seeing any additional risks, since we're already running in "all our eggs in one basket mode", but wanted to ask the hive mind for your input. -- Mark Jacobs Time Customer Service Technology and Product Engineering The standard you walk past, is the standard you accept. Lieutenant General David Morrison -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN Please be alert for any emails that may ask you for login information or directs you to login via a link. If you believe this message is a phish or aren't sure whether this message is trustworthy, please send the original message as an attachment to 'phish...@timeinc.com'. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number
Re: STP Question
Yea, that was my thought too. Just wanted to ask around. Thanks. Mark Jacobs R.S. wrote: W dniu 2016-01-20 o 15:52, Mark Jacobs - Listserv pisze: Our LPARs are being hosted on a single CEC which also might include other client LPARs. All I'm seeing in operlog is that the STP timing network for this CEC doesn't have backup or arbiter servers assigned. Well, it is single CEC, so you don't have spare STP servers. Actually you don't need them, since STP failure in single CEC scenario means this CEC failure. BTW: the (not so) obvious advantage of STP on single CEC is ability to use time signal from NTP. You cannot connect z/OS as ntp client, but the CEC with STP can be ntp client. -- Radoslaw Skorupka Lodz, Poland --- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorized to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. mBank S.A. z siedzib w Warszawie, ul. Senatorska 18, 00-950 Warszawa, www.mBank.pl, e-mail: kont...@mbank.pl Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2016 r. kapita zakadowy mBanku S.A. (w caoci wpacony) wynosi 168.955.696 zotych. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN Please be alert for any emails that may ask you for login information or directs you to login via a link. If you believe this message is a phish or aren't sure whether this message is trustworthy, please send the original message as an attachment to 'phish...@timeinc.com'. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: STP Question
W dniu 2016-01-20 o 15:52, Mark Jacobs - Listserv pisze: Our LPARs are being hosted on a single CEC which also might include other client LPARs. All I'm seeing in operlog is that the STP timing network for this CEC doesn't have backup or arbiter servers assigned. Well, it is single CEC, so you don't have spare STP servers. Actually you don't need them, since STP failure in single CEC scenario means this CEC failure. BTW: the (not so) obvious advantage of STP on single CEC is ability to use time signal from NTP. You cannot connect z/OS as ntp client, but the CEC with STP can be ntp client. -- Radoslaw Skorupka Lodz, Poland --- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo wczajc w to wszelkie jej kopie wydrukowane lub zapisane na dysku. This e-mail may contain legally privileged information of the Bank and is intended solely for business use of the addressee. This e-mail may only be received by the addressee and may not be disclosed to any third parties. If you are not the intended addressee of this e-mail or the employee authorized to forward it to the addressee, be advised that any dissemination, copying, distribution or any other similar activity is legally prohibited and may be punishable. If you received this e-mail by mistake please advise the sender immediately by using the reply facility in your e-mail software and delete permanently this e-mail including any copies of it either printed or saved to hard drive. mBank S.A. z siedzib w Warszawie, ul. Senatorska 18, 00-950 Warszawa, www.mBank.pl, e-mail: kont...@mbank.pl Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru Sdowego, nr rejestru przedsibiorców KRS 025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2016 r. kapita zakadowy mBanku S.A. (w caoci wpacony) wynosi 168.955.696 zotych. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: STP Question
It's being configured that way by our outsourcer, we no longer have control over the configuration. I agree with you, but wanted to see if there's any additional risk to our environment in this configuration. Mark Jacobs Vernooij, CP (ITOPT1) - KLM wrote: The main reason of STP is to coordinate time between the CECs. When you have only one, there is nothing to coordinate anymore. Kees. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Mark Jacobs - Listserv Sent: 19 January, 2016 21:06 To: IBM-MAIN@LISTSERV.UA.EDU Subject: STP Question We're moving from a three CEC configuration, with all STP rolls, Primary/Backup/Arbiter defined, to a singe CEC that's defined as the Primary, with no backup or arbiter defined to the STP network. I'm not seeing any additional risks, since we're already running in "all our eggs in one basket mode", but wanted to ask the hive mind for your input. -- Mark Jacobs Time Customer Service Technology and Product Engineering The standard you walk past, is the standard you accept. Lieutenant General David Morrison -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN Please be alert for any emails that may ask you for login information or directs you to login via a link. If you believe this message is a phish or aren't sure whether this message is trustworthy, please send the original message as an attachment to 'phish...@timeinc.com'. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: STP Question
Do you really get a stand-alone CEC or are your LPARs placed on one of the outsourcers machines? If so, they will probably have STP and provide a reliable time. And of course Gil is right: if not, you can configure STP to a timeserver to keep your time accurate. Kees. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Mark Jacobs - Listserv Sent: 20 January, 2016 13:15 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: STP Question It's being configured that way by our outsourcer, we no longer have control over the configuration. I agree with you, but wanted to see if there's any additional risk to our environment in this configuration. Mark Jacobs Vernooij, CP (ITOPT1) - KLM wrote: > The main reason of STP is to coordinate time between the CECs. When you have > only one, there is nothing to coordinate anymore. > > Kees. > > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Mark Jacobs - Listserv > Sent: 19 January, 2016 21:06 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: STP Question > > We're moving from a three CEC configuration, with all STP rolls, > Primary/Backup/Arbiter defined, to a singe CEC that's defined as the > Primary, with no backup or arbiter defined to the STP network. I'm not > seeing any additional risks, since we're already running in "all our > eggs in one basket mode", but wanted to ask the hive mind for your input. > -- > Mark Jacobs > Time Customer Service > Technology and Product Engineering > > The standard you walk past, is the standard you accept. > Lieutenant General David Morrison > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > For information, services and offers, please visit our web site: > http://www.klm.com. This e-mail and any attachment may contain confidential > and privileged material intended for the addressee only. If you are not the > addressee, you are notified that no part of the e-mail or any attachment may > be disclosed, copied or distributed, and that any other action related to > this e-mail or attachment is strictly prohibited, and may be unlawful. If you > have received this e-mail by error, please notify the sender immediately by > return e-mail, and delete this message. > > Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its > employees shall not be liable for the incorrect or incomplete transmission of > this e-mail or any attachments, nor responsible for any delay in receipt. > Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch > Airlines) is registered in Amstelveen, The Netherlands, with registered > number 33014286 > > > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > Please be alert for any emails that may ask you for login information or > directs you to login via a link. If you believe this message is a phish or > aren't sure whether this message is trustworthy, please send the original > message as an attachment to 'phish...@timeinc.com'. > -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ---
Re: STP Question
On Wed, 20 Jan 2016 07:08:18 +, Vernooij, CP (ITOPT1) - KLM wrote: >The main reason of STP is to coordinate time between the CECs. When you have >only one, there is nothing to coordinate anymore. > Some reference is necessary to steer the TOD clock in order to prevent secular drift. What are the alternatives to STP? I suppose one might rely on the operator's wristwatch and ad-hoc corrections entered at the HMC. But doesn't that in turn rely on STP? -- gil -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: STP Question
That's how we are in one of our datacenters. _ Dave Jousma Assistant Vice President, Mainframe Engineering david.jou...@53.com 1830 East Paris, Grand Rapids, MI 49546 MD RSCB2H p 616.653.8429 f 616.653.2717 -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Mark Jacobs - Listserv Sent: Tuesday, January 19, 2016 3:06 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: STP Question We're moving from a three CEC configuration, with all STP rolls, Primary/Backup/Arbiter defined, to a singe CEC that's defined as the Primary, with no backup or arbiter defined to the STP network. I'm not seeing any additional risks, since we're already running in "all our eggs in one basket mode", but wanted to ask the hive mind for your input. -- Mark Jacobs Time Customer Service Technology and Product Engineering The standard you walk past, is the standard you accept. Lieutenant General David Morrison -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: STP Question
The main reason of STP is to coordinate time between the CECs. When you have only one, there is nothing to coordinate anymore. Kees. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Mark Jacobs - Listserv Sent: 19 January, 2016 21:06 To: IBM-MAIN@LISTSERV.UA.EDU Subject: STP Question We're moving from a three CEC configuration, with all STP rolls, Primary/Backup/Arbiter defined, to a singe CEC that's defined as the Primary, with no backup or arbiter defined to the STP network. I'm not seeing any additional risks, since we're already running in "all our eggs in one basket mode", but wanted to ask the hive mind for your input. -- Mark Jacobs Time Customer Service Technology and Product Engineering The standard you walk past, is the standard you accept. Lieutenant General David Morrison -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
