This document contains output from the kfed utility which is reading and displaying metadata from an Oracle ASM disk. It shows key-value pairs describing the disk format header, disk header database, and properties like the disk size, block size, and creation/mount timestamps.

1. $GRID_HOME/bin/kfed
$ kfed help=y
$ kfed read /dev/pureasm/dg_pstb_oradata
kfbh.endian: 1 ; 0x000: 0x01
kfbh.hard: 130 ; 0x001: 0x82
kfbh.type: 1 ; 0x002:
KFBTYP_DISKHEAD
kfbh.datfmt: 1 ; 0x003: 0x01
kfbh.block.blk: 0 ; 0x004: blk=0
kfbh.block.obj: 2147483648 ; 0x008: disk=0
kfbh.check: 1156265638 ; 0x00c: 0x44eb36a6
...
kfdhdb.driver.provstr: ORCLDISK ; 0x000: length=8
kfdhdb.compat: 301989888 ; 0x020: 0x12000000
kfdhdb.dsknum: 0 ; 0x024: 0x0000
kfdhdb.grptyp: 1 ; 0x026:
KFDGTP_EXTERNAL
kfdhdb.hdrsts: 3 ; 0x027:
KFDHDR_MEMBER
kfdhdb.dskname: DATA_0000 ; 0x028: length=9
kfdhdb.grpname: DATA ; 0x048: length=4
kfdhdb.fgname: DATA_0000 ; 0x068: length=9
...
kfdhdb.crestmp.hi: 33070960 ; 0x0a8: HOUR=0x10
DAYS=0x1b MNTH=0x7 YEAR=0x7e2
kfdhdb.crestmp.lo: 598415360 ; 0x0ac: USEC=0x0
MSEC=0x2c6 SECS=0x3a MINS=0x8
kfdhdb.mntstmp.hi: 33102539 ; 0x0b0: HOUR=0xb
DAYS=0x16 MNTH=0x6 YEAR=0x7e4
kfdhdb.mntstmp.lo: 3599148032 ; 0x0b4: USEC=0x0
MSEC=0x1a9 SECS=0x28 MINS=0x35
kfdhdb.secsize: 512 ; 0x0b8: 0x0200
kfdhdb.blksize: 4096 ; 0x0ba: 0x1000
kfdhdb.ausize: 4194304 ; 0x0bc: 0x00400000
kfdhdb.mfact: 454272 ; 0x0c0: 0x0006ee80
kfdhdb.dsksize: 262144 ; 0x0c4: 0x00040000
...