3.5.1 Matrix Server Administration Guide

Chapter 7: Configure PSFS Filesystems 98

The mount option also turns off the filesystem’s file data coherency

control, allowing the database to manage the coherency of its own data

files. Matrix Server Database Option is available as a separately licensed

product.

Create a Filesystem

A PSFS filesystem can be created on a basic volume (a psd device) or a

dynamic volume (a psv device).

On a 32-bit operating system, PSFS filesystems must use 4KB as the block

size. On a 64-bit operating system, PSFS filesystems can use 4KB, 8KB,

16KB, or 32KB as the block size. The maximum filesystem size is

dependent on the block size used for the filesystem. The block size cannot

be changed after the filesystem is created.

You can create a filesystem from one server in the matrix using either the

Management Console or the command line. The filesystem can then be

mounted on all servers in the matrix that can access it via the SAN.

Before creating a filesystem, verify the following:

• If the filesystem will be created on a disk partition, ensure that the

disk is partitioned appropriately. If you want to change the partition

layout, you will need to deport the disk, modify the partition layout,

and then reimport the disk.

• The basic or dynamic volume to be used for the filesystem does not

contain needed data. The new filesystem will write over an existing

filesystem currently on the volume.

Block Size Maximum Filesystem Size

4KB 16TB

8KB 32TB

16KB 64TB

32KB 128TB