7.2.3 Setting monitoring intervals

Enter the interval at which performance information is secured in the ETERNUS disk storage systems and Fibre Channel switch common settings. You can specify 5, 10, 30, 60, 300, or 600 seconds as the interval. However, intervals that can be specified vary depending on device models and the number of Logical Volumes indicating performance level being maintained.

Monitoring condition		Specifiable interval (seconds)
Device model name	Number of LogicalVolumes whose performance is maintained	5	10	30	60	300	600
ETERNUS4000 models 80 and 100 ETERNUS3000 ETERNUS2000 ETERNUS DX60/DX80 ETERNUS GR740, GR820, GR840 ETERNUS GR720, GR730	128 or less	A	A	A	A	A	N/A
	129 to 2,047	N/A	N/A	A	A	A	N/A
	2,048 or more	N/A	N/A	N/A	A	A	N/A
ETERNUS6000	64 or less	N/A	A	A	A	A	N/A
	65 to 2,047	N/A	N/A	A	A	A	N/A
	2,048 or more	N/A	N/A	N/A	A	A	N/A
ETERNUS8000 ETERNUS4000 (except models 80 and 100)	256 or less	N/A	N/A	A	A	A	A
	257 to 1,024	N/A	N/A	N/A	A	A	A
	1,025 to 8,192	N/A	N/A	N/A	N/A	A	A
	8,193 or more	N/A	N/A	N/A	N/A	N/A	A
ETERNUS SN200 series Fibre Channel switch ETERNUS SN200 MDS	-	A	A	A	A	N/A	N/A

"A" indicates "Available", and "N/A" indicates "Not Available".

Point

In LAN traffic or cross-subnet (where there is a gateway between the performance monitoring target device and the administrative server) situations, it may not be possible to obtain the performance information inside the monitoring interval that was set. Please change the monitoring interval when you cannot acquire performance information on each monitoring interval.

Note

When the transfer rate of FC port exceeds 4Gbps on the operating ETERNUS SN200 series Fibre Channel switch or PRIMERGY BX600 Fibre Channel switch blade, set the performance monitoring interval to any one of 5, 10 or 30 seconds. If the performance monitoring interval is set to 60 seconds, the correct performance value may be not acquired from the device.
On the performance information for the number of active disks, power consumption and temperature, the performance monitoring interval sets 60 seconds if its interval is set to shorter than 60 seconds.

When you click <Start> button in this dialog, an instruction to obtain performance information is issued to the performance management unit (see "Figure 7.1 Flow of performance management"), and the performance management unit obtains performance information of the device through the LAN and saves it as performance data. Since the performance management unit is started as a daemon of the administrative server, the unit continues obtaining performance information while the administrative server is active, even if no GUI window is displayed.

The logical configuration of the storage device is recognized, and the obtaining of performance information starts. At the start of obtaining performance information of the selected storage system, an amount of time (tens of seconds to several minutes) is spent to obtain the logical configuration before any performance information is actually obtained.

When performance monitoring starts, the "P" mark appears in green at the upper left of the device icon on the map display. If the Performance Management window is open and the corresponding Fibre Channel switch and storage system are displayed in the tree, the device name is displayed in the same color as that of the "P" mark.

The table below lists "P" mark colors and their corresponding statuses and actions to be taken. The color may differ from that of the current status. Click [Refresh] on the GUI window or press the [F5] key to check the latest status.

"P" mark color	Status	Appropriate action
Green	Performance is being monitored. (Normal)	Performance is being monitored.
Yellow	Performance monitoring is being recovered (e.g. device time-out).	The administrative server cannot communicate with a device. Check the network status and device status. Log off, when ETERNUSmgr/GRmgr is in a login state.
Red	Writing to the performance information file failed.	Check the write permission to the file and the capacity of the file system.
	Wrong registered password of GR	Reregister devices with this software, and restart performance monitoring.
	Internal error	Contact a FUJITSU maintenance engineer.