[SunHELP] Mirroring Setup After a hardware error on Boot Disk

ymui at royalsunalliance.ca ymui at royalsunalliance.ca
Mon Mar 1 14:03:19 CST 2004


Hello Administrators,
There is a hardware problem with the Boot Disk (disk0, i.e. 
/dev/dsk/c0t0d0s2).  The disk is replaced.  metadb commands are executed 
to re-define the database.  After re-establishing the mirroring (metastat 
shows everything ok), metadb -i shows:

        flags           first blk       block count
     a        u         16              1034            /dev/dsk/c0t0d0s3
     a        u         1050            1034            /dev/dsk/c0t0d0s3
     a        u         2084            1034            /dev/dsk/c0t0d0s3
     a    p  luo        16              1034            /dev/dsk/c0t1d0s3
     a    p  luo        1050            1034            /dev/dsk/c0t1d0s3
     a    p  luo        2084            1034            /dev/dsk/c0t1d0s3
o - replica active prior to last mddb configuration change
 u - replica is up to date
 l - locator for this replica was read successfully
 c - replica's location was in /etc/lvm/mddb.cf
 p - replica's location was patched in kernel
 m - replica is master, this is replica selected as input
 W - replica has device write errors
 a - replica is active, commits are occurring to this replica
 M - replica had problem with master blocks
 D - replica had problem with data blocks
 F - replica had format problems
 S - replica is too small to hold current data base
 R - replica had device read errors

Before the hardware problem, it was  like :
   flags           first blk       block count
     a m  p  luo        16              1034            /dev/dsk/c0t0d0s3
     a    p  luo        1050            1034            /dev/dsk/c0t0d0s3
     a    p  luo        2084            1034            /dev/dsk/c0t0d0s3
     a    p  luo        16              1034            /dev/dsk/c0t1d0s3
     a    p  luo        1050            1034            /dev/dsk/c0t1d0s3
     a    p  luo        2084            1034            /dev/dsk/c0t1d0s3

As 'l' and 'm' are missing on /dev/dsk/c0t0d0s2, will a reboot cause 
failure ?

Much appreciated your valuable input.
Y. M. 

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