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Last week, some of our readers reported that they encountered ibm error 813-04. 04. An OPEN macro was issued to understand the tape record, but the record name on the label of the h2 tag does not match the name around the JFCB. Verify that the correct DSNAME and volume serial number are specified in the DD statement.
The physical volume and IBM VTS volume capabilities differ in the way that data is deleted after it has likely been deleted. With the old physical parts, you could turn the tape into a scratch-resistant AC tape manager, and if the tape wasn’t even reused, you could read the tips.
In the IBM VTS, a special CA-Tape work command from management and for OAM sets the timestamp in the tape library manager. The data/volume remains intact until IBM satisfies the VTS EXPIRE option. If the setting is set to 24 hours, the volume data is erased and a new standard IBM label is always written. If you try to read the volume, a large percentage of the time you will probably see S813/613 dropout because the entry in the JCL does not match HDR1/HDR2 ibm. You run the following JCL to remove the labelribbons:
//STEP1 EXEC PGM=IEBGENER
//SYSPRINT DD SYSOUT=*
//SYSOUT DD SYSOUT=*
//SYSIN JJ MANNEQUIN JJ MANNEQUIN
//SYSUT1 DD DSN=WHERE.IS.MY.DATA,
If SYSUT2 consists of the following, then a new SL tag has been written, and the chances of recovering data from the tape are noticeably low:
EXPIRE HOLD and Low Erase Tapes in TS7760T, TS7760C, TS7740, or TS7720T The EXPIRE HOLD option is used in the market to ensure that the logical volume in which it was sent to SCRATCH is not reused or previously deleted before expiration grace period. which elapsed after the expiration of the EXPIRE time. This fact can sometimes cause problems when the library can handle volumes that are no longer available to respond to requests to write new information. If the EXPIRE time was too long and there are not enough remote logical volumes to maintain a healthy level among the available SCRATCH volumes, it may be necessary to decrease the EXPIRE time. However, this change only affects extended volumes that are members of this SCRATCH pool. Existing volumes in the pool will continue to be allocated until then. p until the original EXPIRE time expires. However, if the EXPIRE HOLD action is indeed removed, these volumes can be added to the list of candidates to create a SCRATCH mount. Thus, disabling the EXPIRE HOLD option immediately helps to overcome the low-to-zero condition, although it no longer protects data accidentally sent to SCRATCH. Restoring user data to SCRATCH pool volumes is no longer secure.
10.3.2 EXPIRE HOLD and cache usage in TS7760D or TS7720D When the EXPIRE HOLD method is enabled, the cache in the corresponding TS7700 is consumed several times by storing data from logical databases distributed across all SCRATCH pools that have been sent. In addition to the new risk of running out of suitable volumes to mount, there is a risk of running out of cache on the TS7760D or TS7720D if AUTO DELETE is not enabled. Again, the EXPIRE time needs to be taken into account, and if the TS7760D or ts7720d is running high cache usage every day, adjust the EXPIRE time. In this forensic case, removing the EXPIRE HOLD setting does not immediately mitigate the new high usage cache state. N The downside of disabling the HOLD thread from a cache point of view is that the volumes in the SCRATCH pool start to be listed as candidates for thread deletion processing. Every 60 minutes, a caching task runs that processes multiple chunks from this list and reduces memory cache usage by removing expired databases from the cache. The default number of totals to clear per hour should be 1000. The number of parts moved to the above candidate list is configurable (1000-2000) and controlled by the LI REQ, Composite-Library, SETTING, DELEXP, COUNT, value command defined in 10.1. “Host 3, “Console Query Function” on page 592. For more information, see IBM’s z/OS TS7700 Series Host Command Line Query User’s Guide, WP101091: http://www.ibm.com/support/techdocs/atsmastr .nsf/WebIndex/WP101091Download this software now to fix your PC and improve its performance.