What do your systems say is the current UTC? Could somebody have somehow changed the hardware TOD clock (POR generally) and now _it_ is messed up? And that would mess up all the guests.
On Mon, Nov 4, 2013 at 10:40 AM, Veencamp, Jonathon D. < [email protected]> wrote: > We found a typo in our ZVM system config. So VM was still showing CDT > rather than CST, and evidently that affected Linux as well (even though > Linux was pulling the UTC time from hardware?!? ) > > -----Original Message----- > From: Linux on 390 Port [mailto:[email protected]] On Behalf Of > Gregg Levine > Sent: Monday, November 04, 2013 9:55 AM > To: [email protected] > Subject: Re: Daylight savings time issue > > Hello! > Jonathon DST (Daylight Savings Time) ended yesterday at 2AM. And we > all were supposed to set our clocks back an hour over the Saturday > night. > > How Linux does keep time has been addressed, but I am more curious as > to why your ZVM is still showing CDT when it also should be showing > CST. > ----- > Gregg C Levine [email protected] > "This signature fought the Time Wars, time and again." > > > On Mon, Nov 4, 2013 at 8:22 AM, Veencamp, Jonathon D. > <[email protected]> wrote: > > ZVM is showing CDT, Linux is showing CST. (so the clock is an hour off) > > > > We use SUSE Linux. Yast2 timezone shows hardware clock set to UTC, and > our timezone as Central Time (Chicago). > > > > It's like Linux isn't correctly recognizing that Daylight Savings began > yesterday. If I change the timezone to Eastern Time, then the local time > on Linux is displayed correctly. But that's a workaround and not the > correct fix. Still, everything has been working as intended for years, so > I'm confused why this is suddenly an issue this IPL. > > > > Jon > > > > -----Original Message----- > > From: Linux on 390 Port [mailto:[email protected]] On Behalf Of > Davis, Larry (National VM Capability) > > Sent: Monday, November 04, 2013 7:18 AM > > To: [email protected] > > Subject: Re: Daylight savings time issue > > > > Shouldn't it be CST Now and if Operations adjusted the clock at IPL time > then VM is correct by Operator intervention. > > When you installed Linux did you tell it to use GMT and apply its own > offset or use the Local time? > > One answer I believe uses the hardware clock and the other uses the > VMDBK clock for the guest, could be wrong though > > > > > > > > Larry Davis, > > VM Capability > > > > -----Original Message----- > > From: Linux on 390 Port [mailto:[email protected]] On Behalf Of > Veencamp, Jonathon D. > > Sent: Monday, November 04, 2013 8:12 AM > > To: [email protected] > > Subject: Daylight savings time issue > > > > Good morning list, > > > > > > > > Does anyone have any quick advice? We are in Minnesota and have just > switched to Daylight Savings. Someone IPL'd ZVM differently yesterday > than on past IPL's. (TOD clock question answered yes). Now we are seeing > the correct time in CMS in zVM (I think) but Linux is not showing daylight > savings. > > > > > > > > ZVM > > > > query timezone > > > > Zone Direction Offset Status > > > > UTC ---- 00.00.00 Inactive > > > > GMT ---- 00.00.00 Inactive > > > > EDT West 04.00.00 Inactive > > > > EST West 05.00.00 Inactive > > > > CDT West 05.00.00 Active > > > > CST West 06.00.00 Inactive > > > > MDT West 06.00.00 Inactive > > > > MST West 07.00.00 Inactive > > > > PDT West 07.00.00 Inactive > > > > PST West 08.00.00 Inactive > > > > Ready; T=0.01/0.01 07:05:22 <-- This is correct. > > > > > > > > zLinux > > > > # date > > > > Mon Nov 4 06:05:35 CST 2013 <-- So CST is the issue. > > > > > > > > I verified that /etc/timezone is set to the same as > /usr/share/zoneinfo/America/Chicago. Our TZ environmental variable is not > set. > > > > > > > > Any advice? > > > > > > > > Thanks, > > > > Jon Veencamp > > > > ________________________________ > > > > The information contained in this e-mail message is intended only for > the personal and confidential use of the designated recipient(s) named > above. This message may be an attorney-client or work product communication > which is privileged and confidential. It may also contain protected health > information that is protected by federal law. If you have received this > communication in error, please notify us immediately by telephone and > destroy (shred) the original message and all attachments. Any review, > dissemination, distribution or copying of this message by any person other > than the intended recipient(s) or their authorized agents is strictly > prohibited. Thank you. > > > > ---------------------------------------------------------------------- > > 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/ > > > > ---------------------------------------------------------------------- > > 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 contained in this e-mail message is intended only for > the personal and confidential use of the designated recipient(s) named > above. This message may be an attorney-client or work product communication > which is privileged and confidential. It may also contain protected health > information that is protected by federal law. If you have received this > communication in error, please notify us immediately by telephone and > destroy (shred) the original message and all attachments. Any review, > dissemination, distribution or copying of this message by any person other > than the intended recipient(s) or their authorized agents is strictly > prohibited. Thank you. > > > > ---------------------------------------------------------------------- > > 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/ > > ---------------------------------------------------------------------- > 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 contained in this e-mail message is intended only for the > personal and confidential use of the designated recipient(s) named above. > This message may be an attorney-client or work product communication which > is privileged and confidential. It may also contain protected health > information that is protected by federal law. If you have received this > communication in error, please notify us immediately by telephone and > destroy (shred) the original message and all attachments. Any review, > dissemination, distribution or copying of this message by any person other > than the intended recipient(s) or their authorized agents is strictly > prohibited. Thank you. > > ---------------------------------------------------------------------- > 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/ > -- This is clearly another case of too many mad scientists, and not enough hunchbacks. Maranatha! <>< John McKown ---------------------------------------------------------------------- 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/
