HP StorageWorks Scalable File Share - Manual (Page 169)

Managing email alerts 6–39
6.1.9.3 Overall file system performance tests
The overall file system performance test measures the read and write speeds to and from a specified file
system for a specified set of client nodes, in parallel. The results of the test indicate the maximum possible
throughput that can be obtained on a file system. The file system performance test uses the
client_perf_check.bash
command from the
hpls-diags-client
RPM file.
The test dynamically calculates the optimal distribution of client nodes to OST services and the appropriate
stripe width to be used in the test, depending on the number of client nodes specified for the test, and the
number of OST services in the file system.
Before you run the overall file system performance test, make sure that the file system is correctly mounted
on all of the client nodes that you intend to use for the test. To ensure that the test is reliable, unmount the
file system from all client nodes that are not involved in the test so that they are not able to use the file system
in any way.
When you have ensured that no other processes are accessing the file system, enter the
client_perf_check.bash
command on one of the client nodes, using the following syntax:
/usr/opt/hpls/diags/bin/client_perf_check.bash -m mount_point
-c "client_name1 [client_name2 ...]"
where
mount_point
is the directory where the file system served by the HP SFS system is mounted on each
of the client nodes (the mount point must be the same for all client nodes).
For example, to perform an overall system performance test using only one client node, enter the following
command:
[root@client1 ~]$ /usr/opt/hpls/diags/bin/client_perf_check.bash -m /mnt/deltaone
-c client1
Setting REMOTE_SHELL to default of ssh
Clients=1 osts=4 stride=4: Iozone Write = 111.71 MB/s
Clients=1 osts=4 stride=4: Iozone Read = 108.37 MB/s
In this example, the file system has four OST services; the test automatically calculates the optimal I/O
distribution for the test.
You can repeat this test for each file system.
For full details of the
client_perf_check.bash
command, see
the client_perf_check
(8)
manpage.
6.2 Managing email alerts
The HP SFS system can be configured to send email to designated addresses when specific events occur.
You can use this feature to warn about critical failures in the system. You can specify what types and severity
of events will trigger an email warning, as well as the addresses to which the warnings are to be sent, by
setting up email alerts.
A mail server on your site network is required to relay the email messages from the HP SFS system to the
email addresses specified on the alerts. Typically, the mail server is set up during system installation. For
more information, refer to Chapter 6 and Chapter 7 of the HP StorageWorks Scalable File Share System
Installation and Upgrade Guide.
This section describes how to set up and maintain email alerts, and is organized as follows:
• Configuring default email alert addresses (Section 6.2.1)
• Configuring email alerts (Section 6.2.2)
• Constructing email alert filters (Section 6.2.3)
• Default email alerts (Section 6.2.4)
• Modifying email alerts (Section 6.2.5)
• Creating email alerts (Section 6.2.6)