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Using S.M.A.R.T. Disk Monitor 141
SANTOOLS® is registered in US Patent and Trademark Office No 3,107,854 All rights reserved.
SMARTMon-ux [Release 1.23, Build 07-DEC-2003] - Copyright 2003 SANtools, Inc.
http://www.SANtools.com
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 3.044s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
Port 22:00:00:20:37:E6:0C:84 replies in 0.000s as SEAGATE ST336605FC
10 successful and 0 unsuccessful pings.
Average ping time: 0.304s.
You'll note that the Windows machine above is not very consistent in performance. There was a 3-second delay on
the 5th attempt. This is something that the system administrator may wish to investigate.
The following example shows what will happen if you attempt to ping a non-existent device.
D:\TEST>smartmon-ux -fcping 22:00:00:20:37:E6:0C:99 0 10
SMARTMon-ux [Release 1.23, Build 07-DEC-2003] - Copyright 2003 SANtools, Inc.
http://www.SANtools.com
Could not find path to LUN #0 at port WWN 22:00:00:20:37:E6:0C:99 from:
- Adapter Port: QLogic Corporation QLA2340 20:00:00:E0:8B:0F:1D:3D
Finally, we're pinging the disk subsystem from the SPARCStation. You will note that the operating system does not
affect the syntax of the results.
# ./smartmon-ux -fcping 21:00:00:20:37:E6:06:31 0 10
SMARTMon-ux [Release 1.23, Build 07-DEC-2003] - Copyright 2003 SANtools, Inc.
http://www.SANtools.com
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
Port 21:00:00:20:37:E6:06:31 replies in 0.010s as SEAGATE ST336605FC
10 successful and 0 unsuccessful pings.
Average ping time: 0.010s.
Additional Information
A few things to know about this feature.
· The granularity of the ping is measured and reported in milliseconds.
· The program sleeps for 1000 milliseconds (1 second) between each ping attempt, whether successful or
unsuccessful.
· SMARTMon-UX will not let you ping a port name that is not known to the HBA. This is by design, as we have seen
the Q-Logic library lock up on LINUX in testing when we attempted to ping a device which does not exist.
· All of this information is obtained by communicating directly with your HBA through the SNIA API library. On more
than one occasion we have seen incorrect results returned by HBAs. Some times updating the HBA firmware and
drivers to the latest release fixed the problem. Other times the bad data is unique to a particular HBA model,
firmware revision, and operating system.