NAME

mddb.conf − metadisk state database replica locations

SYNOPSIS

/etc/mddb.conf

AVAILABILITY

This file is part of the Sun Online: DiskSuite software package. 

DESCRIPTION

The /etc/mddb.conf file is created when the metadb(8) command is invoked.  This file should never be edited by a user. 

/etc/mddb.conf is used by metainit(8) to find the locations of the metadevice state databases replicas. 

Each metadevice state database replica has a unique entry in the /etc/mddb.conf file.  Each entry contains the major 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. 

Metadevice state databases replicas specified in /etc/mddb.conf are set up by metadb(8). 

Entries in the /etc/mddb.conf are of the form:

dev_t master_block checksum

where dev_t is the device number of the physical device storing this replica.  master_block is the block number of the master block used by this replica of the metadevice state database.  checksum is used to make certain the entry has not been corrupted.  A pound sign (#) introduces a comment. 

EXAMPLES

The following example shows a mddb.conf file. 

#metadevice database replica location file do not hand edit
#dev_t    daddr_t    checksum
 1795     16         -1769       #/dev/sd0d
 1795     616        -2369       #/dev/sd0d
 1803     16         -1777       #/dev/sd1d
 1803     616        -2377       #/dev/sd1d

FILES

/etc/mddb.conf

SEE ALSO

md(4s), md.conf(5), metatab(5), metaclear(8), metad(8), metadb(8), metahs(8), metainit(8), metaoffline(8), metaparam(8), metareplace(8), metastat(8), metasync(8), metattach(8)

Sun Online: DiskSuite Administration Guide

Sun Release 4.1  —  Last change: 24 July 1991