Migrated Data Set Record Field
This is the section for migrated data set information. If migrated data
set information records are requested, one record is created for each
migrated data set represented in the MCDS. The record type for this
record is M.
- Name
- Description
- UMDSNAM
- Identifies the original name of this data set.
- UMLEVEL
- Identifies the migration level where this migrated data set is currently residing.
- UMCHIND
- Indicates, when the flag bit is set to a 1, that this data set has changed since the last time it was backed up.
- UMDEVCL
- Identifies whether the migrated data set is currently residing on DASD or tape.
- UMDSORG
- Data set organization, contents of DS1DSORG DSCB field. See Format-1 and Format-8 DSCBs in z/OS DFSMSdfp Advanced Services for the mapping of field DS1DSORG.
- UMDSIZE
- Indicates the size in kilobytes of the migrated data set. If compaction is used, and the data set is on DASD (L0 or L1), then this value represents the compacted size, otherwise, it indicates the size in kilobytes of the migrated data set.
- UMMDATE
- Contains the time and date that the data set was migrated from a level 0 volume. The format is packed decimal. The date (yyyydddF) indicates the year(yyyy) and day(ddd). The time (hhmmssth) indicates the hours(hh), minutes(mm), and seconds(ss) including tenths(t) and hundredths(h) of a second.
- UMCLASS
- Contains the SMS data class, storage class, and management class
of the data set at the time the data set was migrated from a level
0 volume. Note: If UMSCLNG, which contains the length of the storage class name, is zero, the data set is not SMS-managed. If the field is non-zero, the data set is SMS-managed.
- UMRECRD
- Record format of this data set.
- UMRECOR
- VSAM organization of this data set.
- UMBKLNG
- Block length of this data set.
- UMRACFD
- Indicates, when the flag bit is set to a 1, that this data set is RACF-indicated (protected by a discrete RACF® profile).
- UMGDS
- Indicates, when the flag bit is set to a 1, that this data set is an SMS-managed generation data set.
- UMREBLK
- Indicates, when the flag bit is set to a 1, that this data set is an SMS-managed reblockable data set.
- UMPDSE
- Indicates, when the flag bit is set to a 1, that this data set is a partitioned data set extended (PDSE) data set (DSNTYPE=LIBRARY).
- UMCOMPR
- Indicates, when the flag is set to 1, that this data set is in compressed format.
- UMNMIG
- Contains the number of times that a data set has migrated from a user volume.
- UMALLSP
- Indicates the space (in kilobytes) that was originally allocated when this data set was migrated from a level 0 volume.
- UMUSESP
- Indicates the space (in kilobytes) that actually contained data when this data set was migrated from a level 0 volume.
- UMRECSP
- Indicates the estimated space (in kilobytes) required if this data set is recalled to a level 0 volume of similar geometry, using a similar blocking factor. Actual space used will depend on blocking factor and device geometry.
- UMCREDT
- Contains the date (yyyydddF) on which this data set was created on a level 0 volume. This field is valid only for SMS-managed data sets.
- UMEXPDT
- Contains the date (yyyydddF) on which this data set expires.
- UMLBKDT
- Contains the date on which this data was last backed up (STCK format). This field is valid only for SMS-managed data sets.
- UMLRFDT
- Contains the date (yyyydddF) in which this data set was last referred to.
- UM_USER_DATASIZE
- Contains, when UMCOMPR is set to 1, the size (in kilobytes) this data set would be if it were not compressed.
- UM_COMP_DATASIZE
- Contains, when UMCOMPR is set to 1, the actual compressed size (in kilobytes) of the data set.
- UMLRECL
- Contains the logical record length (LRECL) of the data set.
- UMEMPTY
- Indicates, when the flag is set to 1, that this data set was empty when it was migrated.