ATT: Attributes Group

The fields in this group describe the miscellaneous attributes of the entry. See the DEFINE command for further discussion of most of these attributes.

ACT-DIC-TOKEN—The active dictionary token or NULL. This attribute is only valid for compressed data sets.

AVGLRECL—The average length of data records, in bytes. AVGLRECL equals MAXLRECL when the records are fixed length. Do not, however, set AVGLRECL equal to MAXLRECL for variable-length relative records.

AXRKP—Indicates, for an alternate index, the offset, from the beginning of the base cluster's data record, at which the alternate-key field begins.

BUFND—The number of buffers provided for catalog data records. The default for BUFND is taken at catalog open and is not reflected in the output from LISTCAT.

BUFNI—The number of buffers provided for catalog index records. The default for BUFNI is taken at catalog open and is not reflected in the output from LISTCAT.

BUFSPACE—The minimum buffer space, in bytes, in virtual storage to be provided by a processing program.

CCSID—The Coded Character Set Identifier attribute that identifies a specific set of encoding scheme identifier, character set identifiers, code page identifiers, or the additional coding required to uniquely identify the coded graphic used.

CI/CA—The number of control intervals per control area. If you wish to learn the number of tracks in each CA, see VLS: Volumes Group to view the TRACKS/CA value for the component being listed.

CISIZE—The size of a control interval, in bytes.

COMP-FORMT—The data is written to the data set in a format that allows data compression.

ECSHARING—Sharing with the coupling facility for this catalog is allowed.

ERASE—The system will erase the medium when the data set is deleted or when the system releases unused space at the end of the data set. After that, data is not recoverable by any System z® software. See the Erasing DASD Data section in z/OS DFSMS Using Data Sets.

EXCPEXIT—The name of the object's exception exit routine.

EXT-ADDR—Extended addressability indicator.

EXTENDED—The extended format indicator.

ICFCATALOG—The object is part of a cluster for the catalog data set.

INDEXED—The data component has an index; it is key-sequenced.

INH-UPDATE—The data component cannot be updated. Either the data component was exported with INHIBITSOURCE specified, or its entry was modified by way of ALTER, with INHIBIT specified.

KEYLEN—The length of the key field in a data record, in bytes.

LINEAR—The cluster is a linear data set.

MAXLRECL—The maximum length of data or index records, in bytes. MAXLRECL equals AVGLRECL when the records are fixed length. Do not, however, set MAXLRECL equal to AVGLRECL for variable-length relative records.

MAXRECS—Identifies the highest possible valid relative record number, for a relative record data set. This value is calculated as follows: 2 to the 32nd power/CISIZE x number of records slots per control interval

NOECSHARE—Sharing with the coupling facility for this catalog is not allowed.

NOERASE—Records are not to be erased (set to binary 0's) when deleted.

NONINDEXED—The data component has no index; it is entry-sequenced.

NONSPANNED—Data records cannot span control intervals.

NONUNIQKEY—Indicates, for an alternate index, that more than one data record in the base cluster can contain the same alternate-key value.

NOREUSE—The data set cannot be reused.

NOSWAP—The page space is a conventional page space and cannot be used as a high speed swap data set.

NOTRKOVFL—The physical blocks of a page space data set cannot span a track boundary.

NOUPDATE—When the path is opened for processing, its associated base cluster is opened but the base cluster's upgrade set is not opened.

NOUPGRADE—The alternate index is not upgraded unless it is opened and being used to access the base cluster's data records.

NOTUSABLE—The entry is not usable because (1) the catalog could not be correctly recovered by RESETCAT, or (2) a DELETE SPACE FORCE was issued for a volume in the entry's volume list.

NOWRITECHK—Write operations are not checked for correctness.

NUMBERED—The cluster is a relative record data set.

RECORDS/CI—Specifies the number of records, or slots, in each control interval of a relative record data set.

RECOVERY—A temporary CLOSE is issued as each control area of the data set is loaded, so the whole data set will not have to be reloaded if a serious error occurs during loading.

REUSE—The data set can be reused (that is, its contents are temporary and its high-used RBA can be reset to 0 when it is opened).

RKP—The relative key position:the displacement from the beginning of a data record to its key field.

SHROPTNS—(n,m) The numbers n and m identify the types of sharing permitted. See SHAREOPTIONS in the DEFINE CLUSTER section for more details.

SIZES-VALID—Indicates if user data sizes are valid (YES) or are not valid (NO).

SPANNED—Data records can be longer than control interval length, and can cross, or span, control interval boundaries.

SPEED—CLOSE is not issued until the data set has been loaded.

STRIPE-COUNT—The number of stripes for the data set. This number will always be 1 for extended format VSAM KSDS.

STRNO—The number of concurrent RPLs the catalog is prepared to accommodate. The default for STRNO is taken at catalog open and is not reflected in the output from LISTCAT.

SWAP—The page space is a high speed swap data set used by Auxiliary Storage Management during a swap operation to store and retrieve the set of LSQA pages owned by an address space.

TEMP-EXP—The data component was temporarily exported.

TRKOVFL—The physical blocks of a page space data set can span a track boundary.

UNIQUEKEY—Indicates, for an alternate index, that the alternate-key value identifies one, and only one, data record in the base cluster.

UPDATE—When the path is opened, the upgrade set's alternate indexes (associated with the path's base cluster) are also opened and are updated when the base cluster's contents change.

UPGRADE—When the alternate index's base cluster is opened, the alternate index is also opened and is updated to reflect any changes to the base cluster's contents.

VERSION-NUMBER — Version of the format of the extended format sequential data set.

WRITECHECK—Write operations are checked for correctness.