HP StorageWorks Scalable File Share - Manual (Page 310)

CLI commands A–16
A.13 modify commands
A.13.1 modify alert
The
modify alert
command allows you to modify email alerts. When the HP SFS system software is
installed, a number of email alerts are created by default. After the system has been installed, you can use
the
modify alert
command to change the email addresses on the default alerts. In addition, you can
use the
modify alert
command to modify any email alerts that you create on the system.
When you enter the
modify alert
command, a series of questions prompts you to enter the required
information.
Syntax
modify alert alert_name
Arguments
alert_nam
e Optional. If you do not specify an alert name, the system displays a list of the
existing alerts and prompts you to choose one.
A.13.2 modify filesystem
The
modify filesystem
command allows you to modify certain file system attributes.
You can modify the following attributes of a file system:
• The number of OST services used for the file system.
Adding OST services to the file system increases the size of the file system. The file system must be
unmounted on all clients before OST services are added. There are constraints on the amount of
space that can be used on the new OST services.
• The stripe size of the file system.
Changing this attribute changes the default stripe size that is applied to newly created files. However,
the stripe size of existing files is not changed.
• The stripe count of the file system.
Changing this attribute changes the default stripe count that is applied to newly created files.
However, the stripe count of existing files is not changed.
• The mount point of the file system.
Changing this attribute affects client nodes that attempt to mount the file system after the attribute is
changed. Client nodes that have already mounted the file system remain mounted on the original
mount point. You must create the directory for the new mount point on all client nodes before
attempting to mount the file system.
• The preferred server for MDS and OST services.
Changing the preferred server for MDS and OST services is a method of rebalancing server loads.
• LUN mount options.
• The
extents
and the
mballoc
mount options are supported for OST services:
• Enabling the
extents
option on file systems underlying OST services improves file system
performance; for this reason, the default when creating a file system is to enable this option