Timezone change

Products

• VM:Schedule

Issue/Introduction

Currently we IPL for the time change weekend. We are getting some push back from our customers on this and would like to eliminate the IPL. The timezone offset is currently set in the system config file to automatically reset at 2:00 am on the correct weekend.

Will VM:Schedule have any issues if we do not IPL during a time change weekend?

Would it be necessary to recycle the VMSCHED machine? 

Environment

Release: 2.0
Component: VMD

Resolution

VM:Schedule 2.0 processes the clock changes when Daylight Savings Time is starting or ending. 

It has the ability to operate over the clock change without restarting the server.

Please note that VM:Schedule PTF RO75067 restored that ability in 2.0 so this is service you need to have on. Without it, you must recycle VM:Schedule after an IPL.
So, make sure you have it.

Additional Information

Recommendations for action with CA VM:Manager suite products during time zone changes 

The following describes our current recommendations on what you need to do to allow our VM:Manager products to successfully process a time zone change.  

Recycle means to END the product before the time zone change then reinitialize after the time zone change.

 

CA VM:Account – Time zone change causes VM:Account’s shift change process to run. This process gets new date time information and re-establishes the next shift.

Recommendation:  Recycle not required

 

CA VM:Archiver 

Recommendation:  Recycle 

 

CA VM:Backup 

Recommendation: Recycle 

 

CA VM:Backup HiDRO

Recommendation: Recycle HiDRO when it is convenient but until it is recycled all human readable time information will be incorrect.

 

CA VM:Batch –  Shift reconfiguration is done on a time zone change.

Recommendation:  Recycle not required

 

CA VM:Director - –  The product cuts audit record 1060 that marks the event and does other internal processing for the time zone change. 

Recommendation:  Recycle not required

CA VM:Schedule 

Recommendation:   VM:Schedule  2.0 
Recycle only required if PTF RO75067 is not applied.  This PTF is included in the RS1510 collection.

Make sure requests that run around the time that the time zone will change have a WITHIN time setting of at least one hour so when the time goes back an hour they will be in their WITHIN time and will still run.

 

CA  VM:Secure  –  The product cuts audit record 1060 that marks the event and does other internal processing for the time zone change. 

Recommendation:  Recycle not required

 

 

CA  VM:Sort

Recommendation: Nothing to do

 

 

CA VM:Spool 

Recommendation: Recycle 

 

 

CA VM:Tape 

Recommendation: Recycle 

 

 

CA  VM:Operator  - VM:Operator closes the syslog file. 

Recommendation: Recycle not required