SWITCH STREAM command: Difference between revisions
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==Syntax== | ==Syntax== | ||
<p class="syntax">SWITCH STREAM streamname [ RESET ] | <p class="syntax">SWITCH STREAM <span class="term">streamname</span> [ RESET ] | ||
</p> | </p> | ||
<b>Where:</b> | <b>Where:</b> | ||
streamname specifies CCAJRNL, CCAJLOG, CHKPOINT, or CHKPNTS. The command is valid for only these streams. | <var class="term">streamname</var> specifies CCAJRNL, CCAJLOG, CHKPOINT, or CHKPNTS. The command is valid for only these streams. | ||
==Usage notes== | ==Usage notes== | ||
If you specify: | If you specify: | ||
Revision as of 21:05, 28 April 2015
Summary
- Privileges
- System manager
- Function
- You can switch streams-parallel, ring, concatenated, GDG-to the next member at any time.
Syntax
SWITCH STREAM streamname [ RESET ]
Where: streamname specifies CCAJRNL, CCAJLOG, CHKPOINT, or CHKPNTS. The command is valid for only these streams.
Usage notes
If you specify:
-
Journal stream CCAJRNL or CCAJLOG, the currently active data set is closed and the next data set defined to the stream is opened.
-
Checkpoint stream CHKPOINT or CHKPNTS, the currently active data set in the stream is closed after the next record is written to the data set.
If a SWITCH STREAM CCAJRNL command is issued during CHECKPOINT EXTENDED QUIESCE command processing, the journal will be switched, a new checkpoint issued, and the duration extended quiesce time-out set in CPQZSECS will be reset to its maximum, original value-disregarding the already elapsed time.
| RESET | This optional parameter will cause any disabled parallel GDG members to be reopened during the switch.
Valid only for a CCAJLOG stream specified as a Parallel GDG. |
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