Port QoS

Overview

This function displays the bandwidth limit and the performance information of the ports that are registered in the storage system.

A list of the FC port QoS and the iSCSI port QoS is displayed for each type.

Caution
  • The monitoring status of the performance information and obtained performance information are cleared in the following conditions:

    • The port mode is changed (from CA or CA/RA to other port modes)

    • The storage system is rebooted

    • An error is detected in the storage system

    • The hot maintenance of the CM is performed

    • The hot controller firmware upgrade is performed

Note

  • The ports in the port mode of "CA" or "CA/RA" registered with the storage system are displayed, regardless of whether the ports are CA port group members.

  • This function displays the performance information that is obtained during performance monitoring regardless of whether the QoS mode is enabled or disabled. When the performance information is displayed before stopping performance monitoring, the performance information that is obtained from the start time until the time when displaying the performance information is requested is displayed. This function displays the performance information of each port.

Display Contents

FC Port QoS

In this screen, the bandwidth limit and the performance information of the FC port are displayed.

Item Description

Port

The location information of the target port is displayed.

CE#n CM#n CA#n Port#n or CM#n CA#n Port#n

Type

The type of the target port is displayed.

16G FC

32G FC

64G FC

Bandwidth Limit

The maximum performance of the target port is displayed in IOPS (throughput value).

If the performance limit has not been configured, "Unlimited" is displayed.

Refer to the "Port QoS" column in Bandwidth Limit for details.

Performance Monitoring

State

The status of performance monitoring for the port is displayed.

Active

Stopped

Start Time

The start time and the end time for performance monitoring are displayed.

The displayed time varies depending on how the performance monitoring is started or ended.

Start/End monitoring method State Start Time (YYYY-MM-DD hh:mm:ss) Stop / Collect Time (YYYY-MM-DD hh:mm:ss)
Before monitoring is started (*1) Stopped "-" (hyphen) "-" (hyphen)
Monitoring is started

Stopped

↓

Active

 The time when performance monitoring is started is displayed. The time when the performance information is obtained (displayed) is displayed.
Monitoring is started while the monitoring session has already been started Active The last time when performance monitoring is started is displayed. The time when the performance information is obtained (displayed) is displayed.
Monitoring is stopped

Active

↓

Stopped

 The last time when performance monitoring is started is displayed. The time when performance monitoring is stopped is displayed.
Monitoring is stopped while the monitoring session has already been stopped Stopped The last time when performance monitoring is started is displayed. The first time when performance monitoring is stopped is displayed.
*1  :  If performance monitoring is not being performed after the storage system is started, a "-" (hyphen) is displayed.
Caution

  • If performance monitoring is restarted during an active performance monitoring session, the performance information that is already obtained is deleted and the collection of performance information starts again.

Stop / Collect Time

IOPS

Ave

The performance information from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed. In this field, the average I/O count per second, the minimum I/O count per second, and the maximum I/O count per second are displayed.

Min

Max

Throughput

Ave

The transfer data size from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed. In this field, the average data transfer size per second, the minimum data transfer size per second, and the maximum data transfer size per second are displayed.

Min

Max

Delay Time

Total

The total delay time for executing a command from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed. If the total delay time reaches the maximum value, "Overflow" is displayed.

Ave

The average delay time per command from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed.

iSCSI Port QoS

In this screen, the bandwidth limit and the performance information of the iSCSI port are displayed.

Item Description

Port

The location information of the target port is displayed.

CE#n CM#n CA#n Port#n or CM#n CA#n Port#n

Type

The type of the target port is displayed.

10G iSCSI

Bandwidth Limit

The maximum performance of the target port is displayed in IOPS (throughput value).

If the performance limit has not been configured, "Unlimited" is displayed.

Refer to the "Port QoS" column in Bandwidth Limit for details.

Performance Monitoring

State

The status of performance monitoring for the port is displayed.

Active

Stopped

Start Time

The start time and the end time for performance monitoring are displayed.

The displayed time varies depending on how the performance monitoring is started or ended.

Start/End monitoring method State Start Time (YYYY-MM-DD hh:mm:ss) Stop / Collect Time (YYYY-MM-DD hh:mm:ss)
Before monitoring is started (*1) Stopped "-" (hyphen) "-" (hyphen)
Monitoring is started

Stopped

↓

Active

 The time when performance monitoring is started is displayed. The time when the performance information is obtained (displayed) is displayed.
Monitoring is started while the monitoring session has already been started Active The last time when performance monitoring is started is displayed. The time when the performance information is obtained (displayed) is displayed.
Monitoring is stopped

Active

↓

Stopped

 The last time when performance monitoring is started is displayed. The time when performance monitoring is stopped is displayed.
Monitoring is stopped while the monitoring session has already been stopped Stopped The last time when performance monitoring is started is displayed. The first time when performance monitoring is stopped is displayed.
*1  :  If performance monitoring is not being performed after the storage system is started, a "-" (hyphen) is displayed.
Caution

  • If performance monitoring is restarted during an active performance monitoring session, the performance information that is already obtained is deleted and the collection of performance information starts again.

Stop / Collect Time

IOPS

Ave

The performance information from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed. In this field, the average I/O count per second, the minimum I/O count per second, and the maximum I/O count per second are displayed.

Min

Max

Throughput

Ave

The transfer data size from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed. In this field, the average data transfer size per second, the minimum data transfer size per second, and the maximum data transfer size per second are displayed.

Min

Max

Delay Time

Total

The total delay time for executing a command from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed. If the total delay time reaches the maximum value, "Overflow" is displayed.

Ave

The average delay time per command from when performance monitoring is started until performance monitoring is ended (or performance information is displayed) is displayed.