Configuration Examples for Highly Available File Systems

The Oracle Solaris Cluster software moves a highly available file system from a failing node to a viable node in the event of a node failure.

Each node in the Oracle Solaris Cluster environment that can host this file system must have an mcf file. During the file system configuration process, you copy mcf file lines from the metadata server's mcf file to other nodes in the Oracle Solaris Cluster environment.

How to Create an mcf File for a Highly Available File System

1. Add an ma entry for the file system.
2. Add an mm entry listing the partitions that constitute the metadata for the qfs1 file system.
3. Add a series of mr, gXXX, or md entries listing the partitions that constitute the file data for the qfs1 file system.

   You can use the scdidadm command to determine the partitions to use.

   The following code example shows an mcf file entry for a highly available file system that uses raw devices.

   #Equipment            Eq   Eq     Family   Additional
   #Identifier           Ord  Type   Set      Parameters
   #-------------------- ---  ----   ------   ----------
   qfs1                   1   ma    qfs1     on
   /dev/global/dsk/d4s0  11   mm    qfs1
   /dev/global/dsk/d5s0  12   mr    qfs1
   /dev/global/dsk/d6s0  13   mr    qfs1
   /dev/global/dsk/d7s0  14   mr    qfs1

   The following code example shows an mcf file entry for a highly available file system that uses Solaris Volume Manager metadevices. In this example, the Solaris Volume Manager metaset in use is named red.

   #Equipment            Eq   Eq     Family   Additional
   #Identifier           Ord  Type   Set      Parameters
   #-------------------- ---  ----   ------   ----------
   qfs1                   1   ma    qfs1     on
   /dev/md/red/dsk/d0s0  11   mm    qfs1
   /dev/md/red/dsk/d1s0  12   mr    qfs1

   The following code example shows an mcf file entry for a highly available file system that uses VxVm devices.

   #Equipment            Eq   Eq     Family   Additional
   #Identifier           Ord  Type   Set      Parameters
   #-------------------- ---  ----   ------   ----------
   qfs1                   1   ma    qfs1     on
   /dev/vx/dsk/oradg/m1  11   mm    qfs1
   /dev/vx/dsk/oradg/m2  12   mr    qfs1