There were discussions if RMAN backups should be tagged.
Basically, I have been tagging backup as L0, L1, AL for backups to disk or tape only.
Then there are backups to both disk & tape and was planning to tag backups as L0_DISK, L1_DISK, AL_DISK, L0_TAPE, L1_TAPE, AL_TAPE.
I was provided the following info.
Tags can’t be used for this purpose. Tag does not indicate if backup is on disk. Tag should be used if you want to create a specific backup for specific purpose, and use this tag for copy, keep or something like this.
The above recommendations differ from Oracle’s documentation – Backup Tags
Next, I was validating backup using – restore database until time “TRUNC(sysdate)+1/24” validate preview summary;
Here is the result for mining the log and noticed the info for backup pieces.
Does it matter or important to know what the backup piece is?
$ grep "piece handle" restore_validate_$ORACLE_SID.log|grep tag|sort -u
channel ORA_SBT_TAPE_1: piece handle=5avt57n5_1_1 tag=LEVEL0
channel ORA_SBT_TAPE_1: piece handle=76vt7sog_1_1 tag=LEVEL1
channel ORA_SBT_TAPE_1: piece handle=78vt8rmb_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=79vt8rmc_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7avt8rmd_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7bvt8rmg_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7cvt8rmh_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7dvt8rmi_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7evt8rmj_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7fvt8rmk_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7gvt8rml_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7hvt8rmn_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7ivt8rmo_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7jvt8rmp_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7kvt8rmq_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7lvt8rmu_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7mvt8rmv_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7nvt8rn0_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7ovt8rn1_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7qvta5sc_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7rvta5t5_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7svta5t8_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7tvta5tc_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7uvta5te_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=7vvta5tg_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=80vta5tk_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=81vta5tm_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=82vta5tp_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=83vta5tr_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=84vta5tv_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=85vta5u3_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=86vta5u7_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=87vta5uc_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=88vta5ug_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=89vta5ui_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8avta5un_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8bvta5ur_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8cvta5vb_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8dvta5vg_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8evta600_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8fvta602_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8gvta605_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=8hvta609_1_1 tag=ARCH
channel ORA_SBT_TAPE_1: piece handle=c-3547077149-20210427-01 tag=TAG20210427T034102