Enabling the SAN-QFS File System

The following procedures describe how to enable the SAN-QFS file system. Perform these procedures in the order in which they are presented.

Before You Begin

Before you enable the SAN-QFS file system, keep the following configuration considerations in mind and plan accordingly:

• Disks configured for use in a SAN-QFS file system cannot be under the control of a volume manager.

• For the Sun QFS metadata server to be enabled or relocated in a SAN-QFS environment, the new metadata server system must be configured as a SANergy metadata controller.

• A SAN-QFS file system does not recognize segmented files. Unexpected behavior can occur if segmented files are used within the SAN-QFS environment.

• Devices that are classified as ms or md devices in the Sun QFS mcf file are not supported in a SAN-QFS file system.

How to Enable the SAN-QFS File System on the Metadata Controller

When you use the SAN-QFS file system, one host system in your environment acts as the SANergy metadata controller (MDC). This system is the host system upon which the Sun QFS file system resides.

1. Log in to the host upon which the Sun QFS file system resides and become superuser.
2. Verify that the Sun QFS file system is tested and fully operational.
3. Install and configure the SANergy software.

   For instructions, see your SANergy documentation.

4. Verify the SANergy software release leve.:

   # pkginfo -l SANergy

5. Ensure that the file system is mounted.

   Use the mount command either to verify the mount or to mount the file system.

6. Enable NFS access to client hosts.

   MDC# share -F nfs -d qfs-file-system-name /mount-point

   For qfs-file-system-name, specify the name of your Sun QFS file system, for example, qfs1. For more information about the share command, see the share(1M) or share_nfs(1M) man page.

   For mount-point, specify the mount point of qfs-file-system-name.

7. If you are connecting to Microsoft Windows clients, configure Samba, rather than NFS, to provide security and namespace features.

   Ad the SANERGY_SMBPATH environment variable in the /etc/init.d/sanergy file and point it to the location of the Samba configuration file. For example, if your Samba configuration file is named /etc/swf/smb.conf, add the following lines to the beginning of your /etc/init.d/sanergy file:

   SANERGY_SMBPATH=/etc/sfw/smb.confexport SANERGY_SMBPATH

8. (Optional) Edit the file system table (/etc/dfs/dfstab) on the MDC to enable access at boot time.

   Perform this step if you want to automatically enable this access at boot time.

How to Enable the SAN-QFS File System on the Clients

After you have enabled the file system on the MDC, you are ready to enable it on the client hosts. The SAN-QFS file system supports several client hosts including IRIX, Microsoft Windows, AIX, and Linux hosts. For information about the specific clients supported, see your Oracle sales representative.

Every client has different operational characteristics. This procedure uses general terms to describe the actions you must take to enable the SAN-QFS file system on the clients. For information specific to your clients, see the documentation provided with your client hosts.

1. Log in to each of the client hosts.
2. Edit the file system defaults table on each client and add the file system.

   For example, on an Oracle Solaris OS, edit the /etc/vfstab file on each client and add the name of your Sun QFS file system, as follows:

   server:/qfs1  -  /qfs1  nfs  -  yes  noac,hard,intr,timeo=1000

   On other operating system platforms, the file system defaults table might reside in a file other than /etc/vfstab. For example, on Linux systems, this file is /etc/fstab.

   For more information about editing the /etc/vfstab file, see Sun QFS and Sun Storage Archive Manager 5.3 Installation Guide. For information about required or suggested NFS client mount options, see your SANergy documentation.

How to Install the SANergy Software on the Clients

After enabling the file system on the client hosts, you are ready to install the SANergy software on the clients. The following procedure describes the SANergy installation process in general terms.

1. Install and configure the SANergy software.

   For instructions, see your SANergy documentation.

2. Use the mount command to NFS mount the file system.

   For example:

   # mount host:/mount-point /local-mount-point

   For host, specify the MDC.

   For mount-point, specify the mount point of the Sun QFS file system on the MDC.

   For local-mount-point, specify the mount point on the SANergy client.

3. Fuse the software.

   #  fuse |mount-point

   For mount-point, specify the mount point on the SANergy client.