When your IMS restart is taking a long time, have you wondered if restart
is doing anything, or whether it is hung?
To help answer those questions, IMS introduces an IMS restart log read
progress message, which helps you diagnose restart hangs. It is shipped as
part of APAR PH01551 / PTF UI59302. This enhancement addresses
IMS is changing to issue the DFS5055I message, which indicates that log
record read is either in progress or has completed. IMS restart issues the
first DFS5055I message when it starts reading the log, and then
re-issues it every 30 seconds thereafter
(if restart lasts more than 30 seconds), and finally when restart has
completed reading the log.
Here is an example of the DFS5055I message text:
DFS5055I RESTART LOG READ PASS n IS IN PROGRESS; LSN=lsn
DFS5055I RESTART LOG READ PASS n HAS COMPLETED: LSN=lsn
PASS n is the restart log read pass number, which can be 1 for normal
restart, or 1 or 2 for emergency restart. lsn is the log sequence number.
Additional details about message DFS5055I details are included in the
APAR PH01551 and will be included in our IMS Knowledge Center soon.
Brought to you by IMS developer Sandy Stoob