Indexes

An index file conforms to the following naming convention:

indpref.jobname.date.time.fileid

where indpref is the index file prefix.

Based on the length of the IXHPREF parameter in the CTVPARM member in the IOA.PARM library, the index file name prefix structure can be built in one of the following ways:

• If IXHPREF is three characters long, indpref has following structure:

  ixhpref.ixpref

  where

  ixhpref is the 3-character first level qualifier prefix specified in the IXHPREF parameter. All indexes have the same IXHPREF value.

  ixpref is the second level prefix specified in the IXPREF parameter in the CTVPARM member of the IOA.PARM library. All indexes have the same IXPREF value.

• If IXHPREF is one or two characters long, indpref takes the value of the CDAM file prefix with one of the characters replaced to the value specified in first character of IXHPREF. Parameter IXPREF from CTVPARM is not used in this case.
  • If IXHPREF is one character, the first character of the CDAM prefix is replaced.

    For example, if IXHPREF=I and the CDAM file prefix is CTDP.L2, indpref is ITDP.L2.

  • If IXHPREF is two characters, the second character is a digit from 1 to 7 and it means the position number of the character which is replaced.

    For example, if IXHPREF=I6 and the CDAM file prefix is CTDP.L2, indpref is CTDP.L2.

date is the letter C followed by the 5-character date in the julian format, YYDDD.

time is the letter T followed by 6 characters indicating the time in hhmmss format.

fileid is the file ID beginning with the letter M, followed by one digit (from 1 to 9) that indicates the number of the monitor that created the index, followed by the 3-digit sequential number of the index produced in the decollation mission.

A primary migrated index conforms to the following naming convention:

pmigxpref.jobname.date.time.fileid

where pmigxpref is the file name prefix. Based on the length of the DSNPREF parameter in the IOASPRM member in the IOA.PARM library, which should be the same as the length of the IXHPREF parameter in the CTVPARM member.

The index file name prefix structure can be built in one of the following ways:

• If DSNPREF is three characters long, pmigxpref is built as DSNPREF.IXPREF, where IXPREF is the second level prefix specified in the IXPREF parameter in the CTVPARM member.
• If DSNPREF is one or two characters long, pmigxpref is built by inserting the first DSNPREF character into the original Index file prefix.
  • If DSNPREF is one character, it is inserted into the first position.

For example, if DSNPREF=M and the original Index file prefix is ITDP.L2, pmigxpref is MITDP.L2.

• If DSNPREF is two characters, the second character is a digit from 1 to 7 and it means the number of position into which the first DSNPREF character is inserted.

For example if DSNPREF=M6 and the original Index file prefix is CTDP.I2, pmigxpref is CTDP.MI2.

A secondary migrated index conforms to the following naming convention:

smigxpref.jobname.date.time.fileid

where smigxpref is the file name prefix. Based on the length of the SECPREF parameter in the IOASPRM member in the IOA.PARM library, which should be the same as the length of the IXHPREF parameter in the CTVPARM member, the file name prefix structure can be built in one of the following ways:

• If SECPREF is three characters long, smigxpref is built as SECPREF.IXPREF, where IXPREF is the second level prefix specified in the IXPREF parameter in the CTVPARM member.
• If SECPREF is one or two characters long, smigxpref is built by inserting the first SECPREF character into the original Index file prefix by the same way as pmigxpref is built from DSNPREF.

For example, if SECPREF=S and the original Index file prefix is ITDP.L2, smigxpref is SITDP.L2; if SECPREF =S6 and the original Index file prefix is CTDP.I2, smigxpref is CTDP.SI2

For both primary and secondary migration, the date field has the following format:

date

When an index migrates from disk to the level 01 target media, this field remains prefixed by the letter C. This letter is replaced by the next letter in alphabetical sequence during each stage of the multistage migration or refresh.

The other qualifiers are copied from the original index name.