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, the iSCSI port QoS, and the SAS 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.

User Privileges

Availability of Executions in the Default Role

Default role	Availability of executions
Monitor
Admin
StorageAdmin
AccountAdmin
SecurityAdmin
Maintainer

Refer to "User Roles and Policies" for details on the policies and roles.

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.

For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4

CE#x CM#y CA#z Port#w

For the other models

CM#y CA#z Port#w

x: CE number

y: CM number

z: CA number

w: Port number

Type

The type of the target port is displayed.

16G FC

32G 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.

For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4

CE#x CM#y CA#z Port#w

For the other models

CM#y CA#z Port#w

x: CE number

y: CM number

z: CA number

w: Port number

Type

The type of the target port is displayed.

1G iSCSI

1Gbit/s iSCSI.
10G iSCSI

10Gbit/s 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.

SAS Port QoS

In this screen, the bandwidth limit and the performance information of the SAS ports in the storage system are displayed.

Caution

The SAS port QoS is supported in the ETERNUS DX100 S5/DX200 S5.

Item

Description

Port

The location information of the target port is displayed.

CM#x CA#y Port#z

x: CM number

y: CA number

z: Port number

Type

The type of the target port is displayed.

12G SAS

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 "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 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 is displayed.
Stop	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.

When the start time is "0", "-" is displayed for "Start Time" and "Stop / Collect Time".

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.