SMF Log Streams attributes

Use these attributes to view information about SMF log streams.

ARECSIGN HASH Type HASH method for ARECSIGN. If present, SHA512.

ARECSIGN Keyhandle The 44 character key handle for ARECSIGN; the first 32 characters are a token name.

ARECSIGN Type SIGNATURE type for ARECSIGN. If present, SIGNATURE(LI2).

BUFUSEWARN Percentage BUFUSEWARN value as a percentage. Its value can range from 10 to 90 percent; the default value is 25 percent.

Buffer Area HWM The high water mark for the buffer area (number of bytes).

Buffer Area In Use Amount of storage used currently in the buffer area (number of bytes).

Buffer Blocksize Log stream buffer block size (number of bytes).

Buffer Unavailable Time Time that log stream buffer became unavailable.

Compression Status Series of mapping strings equivalent to internal flag bits.

  • REQD: Compression requested for records written to this log stream.
  • PREPD: Compression Prepared. Log stream is ready to compress records (hardware is capable of using zEDC; if absent, hardware is not zEDC capable)
  • AVAIL: Compression (zEDC) is Available.

Longest possible value: 'AVAIL-PREPD-REQD'

Global Buffer Options In Use Log stream options globally defined Series of mapping strings equivalent to Bit definitions.

  • DSPSIZMAX: The DSPSIZMAX in use by this log stream is the global one.
  • NOBUFFS: The NOBUFFS in use by this log stream is the global one.
  • BUFUSEWARN: The BUFUSEWARN in use by this log stream is the global one.
  • PERMFIX: The PERMFIX in use by this log stream is the global one.

Longest value: 'DSPSIZMAX-NOBUFFS-BUFUSEWARN-PERMFIX'

Last Successful Write Time Last successful write TOD.

Log stream DSPSIZMAX The DSPSIZMAX for this log stream (number of bytes). Its value can range from a minimum of 128M to a maximum of 2G. The default value is 2G.

Log stream Name The log stream name.

Log stream Status Series of mapping strings equivalent to internal flag bits.

  • DFLT: Default log stream
  • ACTIVE: Active
  • BCU: Being cleaned up
  • CNTD: Connected

Longest possible value: 'DFLT-ACTIVE-CNTD-BCU'

LPAR Name Name of the z/OS LPAR to be reported on. The format is a simple text string from 1 through 8 characters; for example, LPAR1.

Managed System A z/OS® operating system in your enterprise that is being monitored by an IBM® Z OMEGAMON AI for z/OS agent. Valid value is a character string with a maximum length of 32 bytes.

NOBUFFS Option Indicates the NOBUFFS option of the log stream.

  • NOBUFFSMsg = The log stream has NOBUFFS(MSG) specified.
  • NOBUFSSHalt = The log stream has NOBUFFS(HALT) specified.

PERMFIX Of Log Stream Max storage SMF can use for zEDC for this log stream. Configuration defined PERMFIX value.

Records Collected If ABOVE255, this log stream is collecting record types above 255.

Records Lost Count Number of records lost during buffer shortage. If zero, then there is currently no buffer shortage.

Record Types Record types (BELOW255) being recorded to this log stream expressed in ranges. For example: '0-62,65-67,69-87,89-125,127-255'

RECSIGN HASH Type HASH method for RECSIGN.

  • SHA1
  • SHA256
  • SHA384
  • SHA512

RECSIGN Keyhandle The 44 character key handle for RECSIGN; the first 32 characters are a token name.

RECSIGN Type SIGNATURE type for RECSIGN.

  • SIGNRSA = RSA
  • SIGNECDSA = ECDSA

Signature Type Crypto option flags.

  • 1= RECSIGN specified
  • 2 = ARECSIGN specified

SMF ID SMF ID of the z/OS system where the data was collected. Valid format is a simple text string from 1 through 4 characters.

zEDC Storage HWM High water mark of storage SMF has used for zEDC for this log stream connection

zEDC Storage In Use Total storage SMF is currently using on zEDC for this log stream. Value does not account for 1MB needed by each log stream using zEDC. Value may be up to 2MB greater than the defined PERMFIX value depending on usage.