Sun Cluster Software Installation Guide for Solaris OS

ProcedureHow to Create Cluster File Systems

Perform this procedure for each cluster file system that you want to create. Unlike a local file system, a cluster file system is accessible from any node in the cluster. If you used SunPlex Installer to install data services, SunPlex Installer might have already created one or more cluster file systems.

Caution – Caution –

Any data on the disks is destroyed when you create a file system. Be sure that you specify the correct disk device name. If you specify the wrong device name, you might erase data that you did not intend to delete.

Before You Begin

Perform the following tasks:

  1. Become superuser on any node in the cluster.

    Tip –

    For faster file-system creation, become superuser on the current primary of the global device for which you create a file system.

  2. Create a file system.

    • For a UFS file system, use the newfs(1M) command.

      # newfs raw-disk-device

      The following table shows examples of names for the raw-disk-device argument. Note that naming conventions differ for each volume manager.

      Volume Manager 

      Sample Disk Device Name 


      Solstice DiskSuite or Solaris Volume Manager 


      Raw disk device d1 within the nfs disk set

      SPARC: VERITAS Volume Manager 


      Raw disk device vol01 within the oradg disk group



      Raw disk device d1s3

    • For a Sun StorEdge QFS file system, follow the procedures for defining the configuration in the Sun StorEdge QFS and Sun StorEdge SAM-FS Software Installation and Configuration Guide.

    • SPARC: For a VERITAS File System (VxFS) file system, follow the procedures that are provided in your VxFS documentation.

  3. On each node in the cluster, create a mount-point directory for the cluster file system.

    A mount point is required on each node, even if the cluster file system is not accessed on that node.

    Tip –

    For ease of administration, create the mount point in the /global/device-group/ directory. This location enables you to easily distinguish cluster file systems, which are globally available, from local file systems.

    # mkdir -p /global/device-group/mountpoint/

    Name of the directory that corresponds to the name of the device group that contains the device


    Name of the directory on which to mount the cluster file system

  4. On each node in the cluster, add an entry to the /etc/vfstab file for the mount point.

    See the vfstab(4) man page for details.

    1. In each entry, specify the required mount options for the type of file system that you use.

      Note –

      Do not use the logging mount option for Solstice DiskSuite trans metadevices or Solaris Volume Manager transactional volumes. Trans metadevices and transactional volumes provide their own logging.

      In addition, Solaris Volume Manager transactional-volume logging (formerly Solstice DiskSuite trans-metadevice logging) is scheduled to be removed from the Solaris OS in an upcoming Solaris release. Solaris UFS logging provides the same capabilities but superior performance, as well as lower system administration requirements and overhead.

    2. To automatically mount the cluster file system, set the mount at boot field to yes.

    3. Ensure that, for each cluster file system, the information in its /etc/vfstab entry is identical on each node.

    4. Ensure that the entries in each node's /etc/vfstab file list devices in the same order.

    5. Check the boot order dependencies of the file systems.

      For example, consider the scenario where phys-schost-1 mounts disk device d0 on /global/oracle/, and phys-schost-2 mounts disk device d1 on /global/oracle/logs/. With this configuration, phys-schost-2 can boot and mount /global/oracle/logs/ only after phys-schost-1 boots and mounts /global/oracle/.

  5. On any node in the cluster, run the sccheck(1M) utility.

    The sccheck utility verifies that the mount points exist. The utility also verifies that /etc/vfstab file entries are correct on all nodes of the cluster.

    # sccheck

    If no errors occur, nothing is returned.

  6. Mount the cluster file system.

    # mount /global/device-group/mountpoint/
    • For UFS and QFS, mount the cluster file system from any node in the cluster.

    • SPARC: For VxFS, mount the cluster file system from the current master of device-group to ensure that the file system mounts successfully. In addition, unmount a VxFS file system from the current master of device-group to ensure that the file system unmounts successfully.

      Note –

      To manage a VxFS cluster file system in a Sun Cluster environment, run administrative commands only from the primary node on which the VxFS cluster file system is mounted.

  7. On each node of the cluster, verify that the cluster file system is mounted.

    You can use either the df(1M) or mount(1M) command to list mounted file systems.

Example 2–4 Creating a Cluster File System

The following example creates a UFS cluster file system on the Solstice DiskSuite metadevice /dev/md/oracle/rdsk/d1.

# newfs /dev/md/oracle/rdsk/d1
(on each node)
# mkdir -p /global/oracle/d1
# vi /etc/vfstab
#device           device        mount   FS      fsck    mount   mount
#to mount         to fsck       point   type   ; pass    at boot options
/dev/md/oracle/dsk/d1 /dev/md/oracle/rdsk/d1 /global/oracle/d1 ufs 2 yes global,logging
(save and exit)
(on one node)
# sccheck
# mount /global/oracle/d1
# mount
/global/oracle/d1 on /dev/md/oracle/dsk/d1 read/write/setuid/global/logging/largefiles
on Sun Oct 3 08:56:16 2000

Next Steps

If you installed Sun Cluster software on the Solaris 8 OS or you used SunPlex Installer to install the cluster, go to How to Configure Internet Protocol (IP) Network Multipathing Groups.

If you want to change any private hostnames, go to How to Change Private Hostnames.

If you did not install your own /etc/inet/ntp.conf file before you installed Sun Cluster software, install or create the NTP configuration file. Go to How to Configure Network Time Protocol (NTP).

SPARC: If you want to configure Sun Management Center to monitor the cluster, go to SPARC: Installing the Sun Cluster Module for Sun Management Center.

Otherwise, install third-party applications, register resource types, set up resource groups, and configure data services. Follow procedures in the Sun Cluster Data Services Planning and Administration Guide for Solaris OS and in the documentation that is supplied with your application software.