iX V6.5 (30391-90011)

676 AppendixH

TurboIMAGE/XL versus TurboIMAGE/V

Intrinsic Level Recovery

• On TurboIMAGE/XL, only completed DBPUTs and DBDELETEs are recovered by ILR if

the database was enabled for ILR. If these intrinsics are interrupted by a system failure

or other abnormal termination, they are not recovered. On TurboIMAGE/V, if the

database is enabled for ILR, the last DBPUT or DBDELETE, which was interrupted by a

system failure or other abnormal termination, will be completed.

• When recovery is necessary, it must be performed at system startup time before anyone

modiﬁes the database. This can cause a slightly longer startup time. (If a program

accessing a TurboIMAGE/XL database aborts during the execution of an intrinsic, the

incomplete intrinsic will be undone.)

• On TurboIMAGE/XL, DBINFO mode 402 does not return information about whether or

not ILR recovery has been done on the last DBPUT or DBDELETE. (Because database

recovery is now performed at system startup time, this information is not available.)

Table H-2. compares DBINFO mode 402 on TurboIMAGE/V with DBINFO mode 402 on

TurboIMAGE/XL.

Table H-2. DBINFO Mode 402 Changes

Element TurboIMAGE/V TurboIMAGE/XL

1 ILR log ﬂag: 1 if enabled; 0 if not enabled. No change.

2 Calendar date ILR was enabled. No change.

3, 4 Clock time ILR was enabled. No change.

5 1 if ILR used; 0 if ILR not used. Always 0.

6 P if DBPUT; D if DBDELETE; otherwise blank. Always blank.

7–14 Data set name, when ILR used; otherwise blank. Always blank.

15–16 Reserved. No change.