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kfed读取数据磁盘头主要参数解释说明
% kfed read /dev/raw/raw1
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: T=0 NUMB=0x0
kfbh.block.obj: 2147483648 ; 0x008: TYPE=0x8 NUMB=0x0
kfbh.check: 2932902794 ; 0x00c: 0xaed08b8a
kfbh.fcn.base: 0 ; 0x010: 0x00000000
kfbh.fcn.wrap: 0 ; 0x014: 0x00000000
kfbh.spare1: 0 ; 0x018: 0x00000000
kfbh.spare2: 0 ; 0x01c: 0x00000000
kfdhdb.driver.provstr: ORCLDISK ; 0x000: length=8
kfdhdb.driver.reserved[0]: 0 ; 0x008: 0x00000000
kfdhdb.driver.reserved[1]: 0 ; 0x00c: 0x00000000
kfdhdb.driver.reserved[2]: 0 ; 0x010: 0x00000000
kfdhdb.driver.reserved[3]: 0 ; 0x014: 0x00000000
kfdhdb.driver.reserved[4]: 0 ; 0x018: 0x00000000
kfdhdb.driver.reserved[5]: 0 ; 0x01c: 0x00000000
kfdhdb.compat: 168820736 ; 0x020: 0x0a100000
kfdhdb.dsknum: 0 ; 0x024: 0x0000
kfdhdb.grptyp: 1 ; 0x026: KFDGTP_EXTERNAL
kfdhdb.hdrsts: 3 ; 0x027: KFDHDR_MEMBER
kfdhdb.dskname: ASM01_0000 ; 0x028: length=10
kfdhdb.grpname: ASM01 ; 0x048: length=5
kfdhdb.fgname: ASM01_0000 ; 0x068: length=10
kfdhdb.capname: ; 0x088: length=0
kfdhdb.crestmp.hi: 32837774 ; 0x0a8: HOUR=0xe DAYS=0x4 MNTH=0x4 YEAR=0x7d4
kfdhdb.crestmp.lo: 1555722240 ; 0x0ac: USEC=0x0 MSEC=0x29c SECS=0xb MINS=0x17
kfdhdb.mntstmp.hi: 32837774 ; 0x0b0: HOUR=0xe DAYS=0x4 MNTH=0x4 YEAR=0x7d4
kfdhdb.mntstmp.lo: 1563864064 ; 0x0b4: USEC=0x0 MSEC=0x1ab SECS=0x13 MINS=0x17
kfdhdb.secsize: 512 ; 0x0b8: 0x0200
kfdhdb.blksize: 4096 ; 0x0ba: 0x1000
kfdhdb.ausize: 1048576 ; 0x0bc: 0x00100000
kfdhdb.mfact: 113792 ; 0x0c0: 0x0001bc80
kfdhdb.dsksize: 9075 ; 0x0c4: 0x00002373
kfdhdb.pmcnt: 2 ; 0x0c8: 0x00000002
kfdhdb.fstlocn: 1 ; 0x0cc: 0x00000001
kfdhdb.altlocn: 2 ; 0x0d0: 0x00000002
kfdhdb.f1b1locn: 2 ; 0x0d4: 0x00000002
kfdhdb.redomirrors[0]: 0 ; 0x0d8: 0x0000
kfdhdb.redomirrors[1]: 0 ; 0x0da: 0x0000
kfdhdb.redomirrors[2]: 0 ; 0x0dc: 0x0000
kfdhdb.redomirrors[3]: 0 ; 0x0de: 0x0000
kfdhdb.ub4spare[0]: 0 ; 0x0e0: 0x00000000
...
kfdhdb.ub4spare[60]: 0 ; 0x1d0: 0x00000000
kfdhdb.acdb.aba.seq: 0 ; 0x1d4: 0x00000000
kfdhdb.acdb.aba.blk: 0 ; 0x1d8: 0x00000000
kfdhdb.acdb.ents: 0 ; 0x1dc: 0x0000
kfdhdb.acdb.ub2spare: 0 ; 0x1de: 0x0000
Breakdown:
kfbh.endian
kf3.h /* endianness of writer */
Little endian = 1
Big endian = 0
kfbh.hard
kf3.h /* H.A.R.D. magic # and block size */
kfbh.type
kf3.h /* metadata block type */
kfbh.datfmt
kf3.h /* metadata block data format */
kfbh.block
kf3.h /* block location of this block */
blk -- Disk header should have T=0 and NUMB=0x0
obj -- Disk header should have TYPE=0x8 NUMB=<disknumber>
blk and obj values are derived from a series of macros in kf3.h. See
"KFBL Macros" in kf3.h for more information.
kfbh.check
kf3.h /* check value to verify consistency */
kfbh.fcn
kf3.h /* change number of last change */
kfdhdb.driver
kf3.h /* OSMLIB driver reserved block */
If no driver is defined "ORCLDISK" is used.
kfdhdb.compat
kf3.h /* Comaptible software version */
example: 0x0a100000
You get:
a=10 1=1 so 10.1.0.0.0
kfdhdb.dsknum
kf3.h /* OSM disk number *
This is the disk number. The first disk being "0". There can be up to
ub2 disks in a diskgroup. This allows for 65336 disks 0 through 65335.
kfdhdb.grptyp
kf3.h /* Disk group type */
kfdhdb.hdrsts
kf3.h /* Disk header status */
This is what is used to determine if a disk is available or not to
the diskgroup. 0x03 is the correct value for a valid status.
kfdhdb.dskname /* OSM disk name */
kfdhdb.grpname /* OSM disk group name */
kfdhdb.fgname /* Failure group name */
kfdhdb.capname /* Capacity grp, unused*/
kf3.h
kfdhdb.crestmp /* Creation timestamp */
kfdhdb.mntstmp /* Mount timestamp */
kf3.h To derive the hi and low time`from an unformated dump use the
"KFTS Macros" in kf3.h.
kfdhdb.secsize
kf3.h /* Disk sector size (bytes) */
This is the physical sector size of the disk in bytes. All I/O's to the
disk are described in physical sectors. This must be a power of 2. An
ideal value would be 4096, but most disks are formatted with 512 byte
sectors. (from asmlib.h)
kfdhdb.blksize
kf3.h /* Metadata block (bytes) */
kfdhdb.ausize
kf3.h /* Allocation Unit (bytes) */
kfdhdb.mfact
kf3.h /* Stride between phys addr AUs */
kfdhdb.dsksize
kf3.h /* Disk size in AUs */
Mulitply by AUs to get actual size of disk when added.
kfdhdb.pmcnt
kf3.h /* Permanent phys addressed AUs */
Number of physically addressed allocation units.
kfdhdb.fstlocn
kf3.h /* First FreeSpace table blk num */
Used to find freespace.
kfdhdb.altlocn
kf3.h /* First Alocation table blk num */
Used to find alocated space.
kfdhdb.f1b1locn
kf3.h /* File Directory blk 1 AU num */
Beginging for file directory.
