3.5.1 Matrix Server Administration Guide

Chapter 7: Configure PSFS Filesystems 111
Copyright © 1999-2007 PolyServe, Inc. All rights reserved.
• EXEC/ NOEXEC. Permit (or do not permit) the execution of binaries on
the mounted filesystem.
EXEC is the default. NOEXEC can be used on a
system that has filesystems containing binaries for other architectures.
•
SUID/ NOSUID. Allow (or do not allow) set-user-id bits and set-group-
id bits to take effect.
SUID is the default.
•
SHARED/ EXCLUSIVE. Either allow all servers having physical access
to the filesystem to mount it or allow only one server.
SHARED is the
default.
•
ORDERED/ UNORDERED. With the ORDERED option, if a metadata
operation will allocate user blocks, the user blocks are written to the
filesystem before the metadata is written. With the
UNORDERED
option, the writes can occur in either order.
ORDERED is the default.
•
CREATEDIR. Create the directory mount point.
• localbrlocks. Disable cluster-coherent record locking. See the
description of the Cluster-Coherent Record Locks option, above, for
more information.
•
DBOPTIMIZE. Optimize file access for database data files. See the
description of the DB Optimized option, above, for more information.
The Linux mount Command
Use the following syntax to mount a filesystem. The directory
mountpoint must already exist.
mount -t psfs -o options device mountpoint
The device can be either a psd or psv device. Use this syntax to specify the
device:
• For a psd device partition, the device is specified as
/dev/psd/psdXXXpYY, where XXX is the drive number and YY is the
partition number. For example, /dev/psd/psd6p4 specifies partition 4
on disk psd6.
• For a non-partitioned psd device, the device is specified as
/dev/psd/psdXXX, where XXX is the drive number. For example,
/dev/psd/psd5.