5.1B and ES47 date problem

[Jerome Matriano]

We have an ES47 deskside with 2 x 1Ghz CPU and 3 GB of memory. We are encountering a problem with the date of the OS, Tru64 5.1B with PK4 every start of the month. For example, the latestet date changes from May 31, 2005 to June 2, 2005.

We only encountered this on the ES47 that is powered-off daily. On the ES47 that is online 24x7 we didn't had this problem. The firmware for both ES47 is 6.9.

[Johan Brusche]

Jerome,

Is the os_type in console mode = UNIX ?
Use "consvar -g os_type" to check
If os_type is VMS you can encounter such problems since VMS stores date/time in a different format in the HW clock chip.

With powered-off, do you mean just flipping the switch, or is a propre shutdown perfomed ?

A system that is running uses OS structures/tables to manage its calender, a system that boots, reads the date info from the hardware clock chip, compares it with the date on systemdisk stored at shutdown time, decides on the validity between both and continues from there.

Rgds,

[Jerome Matriano]

Hi Johan,

The os_type in the SRM is set to UNIX. The ES47 is shutdown properly daily and then powered-off thru the switch. At this time the MBM prompt is still OK.

Example of the problem, Current Date, May 31,2005.

Sequence of events
- date on Tru64 May 31, 2005 18:00
- shutdown Tru64
- once shutdown, power-off ES47 via switch

Current Date, June 1, 2005
- power-on ES47 via switch
- autimatically boots OS
- date on Tru64 June 2, 2005

On the other ES47 the date is correct and the difference is that we didn't shutdown/power-off the server.

We will try to install PK5 on the server and try to make some tests.

Regards,

Jerome

[Han Pilmeyer]

Sounds like you have discovered a time machine. I would put it up on display in a museum somewhere! :-)

More seriously though... I've never neard about this before. But it's also not very common for these types of servers to be powered off during the night. Could you drop to MBM and do a "show time" both before and after you power off/on the system?