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mddb.cf(4)                       File Formats                       mddb.cf(4)



NAME
       mddb.cf - metadevice state database replica locations

SYNOPSIS
       /etc/lvm/mddb.cf

DESCRIPTION
       The  /etc/lvm/mddb.cf  file  is  created when the metadb(1M) command is
       invoked. You should never directly edit this file.

       The file /etc/lvm/mddb.cf is used by the metainit(1M) command  to  find
       the  locations  of  the metadevice state databases replicas. The metadb
       command creates the file and updates it each time it  is  run.  Similar
       information is entered in the /kernel/drv/md.conf file.

       Each  metadevice  state  database  replica  has  a  unique entry in the
       /etc/lvm/mddb.cf file. Each entry contains the driver  and  minor  unit
       numbers  associated  with  the block physical device where a replica is
       stored. Each entry also contains the block number of the master  block,
       which contains a list of all other blocks in the replica.

       Entries  in  the  /etc/lvm/mddb.cf  file  are  of the form: driver_name
       minor_t daddr_t  checksum where driver_name and minor_t  represent  the
       device  number  of the physical device storing this replica. daddr_t is
       the disk block address. checksum is used to make certain the entry  has
       not been corrupted.  A pound sign (#) introduces a comment.

EXAMPLES
       Example 1: Sample File

       The following example shows a mddb.cf file.

       #metadevice database location file do not hand edit
       #driver minor_t daddr_t device id       checksum
       sd      152     16      id1,sd@SSEAGATE_JDD288110MC9LH/a        -2613

       In  the  example above, the value for daddr_t indicates that the offset
       from the start of a given partition is 16 disk blocks from the start of
       that partition.

FILES
       /etc/lvm/mddb.cf



       /kernel/drv/md.conf



SEE ALSO
       mdmonitord(1M),  metaclear(1M), metadb(1M), metadetach(1M), metahs(1M),
       metainit(1M), metaoffline(1M), metaonline(1M),  metaparam(1M),  metare-
       cover(1M),   metarename(1M),   metareplace(1M),   metaroot(1M),  metas-
       sist(1M),  metaset(1M),  metastat(1M),   metasync(1M),   metattach(1M),
       md.cf(4), md.tab(4), attributes(5), md(7D)

       Solaris Volume Manager Administration Guide



SunOS 5.10                        8 Aug 2003                        mddb.cf(4)