3.6.0 Matrix Server 3.6.0 Administration Guide (5697-7081, December 2007)

Chapter 4: Matrix Administration 23

Volume and Filesystem Limits

The following limits apply to volumes and filesystems:

• The maximum volume size is 16 TB.

• The maximum filesystem size is 16 TB.

• The maximum file size is 2 TB minus one byte. If an I/O operation

would cause the size of a file to exceed this limit, the complete I/O

operation will fail.

• For both dynamic volumes and basic volumes, the maximum number

of files/inodes is limited only by the available space. If zero-length

files are created, the upper bound is similar to the maximum block

count, which is about 2^32.

User Authentication

Matrix Server can be managed via the PolyServe Management Console

GUI or from the command line. The Matrix Server mx command provides

command-line equivalents of Management Console operations. Matrix

Server also provides other commands to perform various matrix

operations.

Matrix Server provides several ways to authorize users to access the

matrix and perform matrix operations:

• Windows single sign-on. Matrix Server uses the Windows credentials

to authorize access to the matrix.

•The Matrix Server .matrixrc file. This optional file is stored on the local

machine and contains connection information for the servers in the

matrix. It can also store the usernames and passwords needed to

access the servers.

• On the command line, the --username and --password options can be

used to provide credentials for an mx command.

• If Matrix Server cannot authenticate a user via the methods above, it

prompts for the username and password.