Space banner

   

This space provides the same content as before, but the organization of the home page has changed. The content is now organized based on logical branches instead of legacy book titles. We hope that the new structure will help you quickly find the content that you need.

Storage performance

The MainView SRM performance collector automatically updates data used in storage performance views at user-defined intervals (called snapshots). The views provide information about device activity, I/O queuing, and channels and contention by enqueue and reserves.

To access storage performance information about storage resources, you first select a resource type, such as storage groups and pools. From the resulting list of resources, you can drill down to an individual resource, such as a specific storage group. Selecting a resource produces an EZCmd menu that provides additional performance options.

The following table summarizes each performance option and its corresponding SETSRM keywords, action line commands, and EZCmd menus.

Note

In the performance collector, storage devices based on 3390 geometry with 32,760 cylinders are identified as 3390-27. This may extend to other views. However, the device type displayed on other views is obtained through a different interface. In such cases, the device type might be displayed as 3390, 3390-9, 3390-SSD, or some other 3390-based type.

With all storage performance views, you can use the TIME command to set date and time ranges for the reporting period. For information about using the TIME command, see the Using MainView products or type Help TIME on the COMMAND line to access online Help. 

MainView SRM retrieves start and end dates and times from the parameters that you specified in the MainView TIME command. The following guidelines apply to the TIME command:

  • MainView SRM uses the end date and time for the interval date and time when you specify those parameters as *.

  • If you provide hexadecimal zero start and end dates and times, MainView SRM returns all system summary records.

Notes

For complete keyword descriptions for the SETSRM command, see SETSRM command

Press F1 in the CMD column to display online Help that describes each action line command.

For an explanation of any field or column on a view, place your cursor over the field or in the column and press F1 to access online Help.

Storage performance options

Menu option

Description

SETSRM keywords

Action line commands

EZCmd menu

Groups and Pools

Advances to the PRPOOL view.

This view provides you with performance information about storage groups and pools.

DATE

TIME

TREND

GRPTYPE

POOL

See Group EZMenu (EZPOOL).

EZPOOL

Subsystems

Advances to the PRCCU view.

This view displays performance information on all storage subsystems, also referred to as cache control units.

DATE

TIME

GRPTYPE

CHP

LCU

PHY

D Details

V Volumes

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

DR RAID Director

PV RAID Physical Volume

RF RVA SubSystem Frame

RR RAID Rank

None

Volumes

Advances to the PRVOL view.

This view displays performance information on all volumes. It provides the 4-byte subsystem ID, the 11-byte physical disk ID, and other configuration information, along with I/O activity, response times, cache hit rates, and other performance data that is associated with the volume.

DATE

TIME

TREND

GRPTYPE

CCU

CHP

DSN

LCU

POOL

DIR

VOL

See Volume EZMenu (EZVOL).

EZVOL

Channel Activity

Advances to the PRCHP view.

This view displays a selected channel path record.

DATE

TIME

TREND

GRPTYPE

VOL

LCU

L Logical Control Unit

V Volume

CC Cache Control Unit

D Details

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

None

System Daily Trend

Advances to the PRSSUM view.

This view provides summarized historical data by system, day, week, and month.

None

D Details

J Job

L Logical Control Unit

P Pool

V Volume

CC Cache Control Unit

CP Channel Path

DR RAID Director

DS Data Sets

PV RAID Physical Volume

RF RVA SubSystem Frame

RR RAID Rank

SC Storage Class

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

None

Interval Data

Advances to the PRINTV view.

This view displays all interval reports that are stored in the database.

None

J Job

L Logical Control Unit

P Pool

V Volume

CC Cache Control Unit

CP Channel Path

DR RAID Director

DS Data Set

PV RAID Physical Volume

RF RVA SubSystem Frame

RR RAID Rank

SC Storage Class

None

Logical Control Unit

Advances to the PRLCU view.

This view displays a selected logical control unit record for a specific date and time.

DATE

TIME

TREND

GRPTYPE

CCU

CHP

VOL

D Details

V Volume

CC Cache Control Unit

CP Channel Path

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

None

Storage Class

Advances to the PRSCL view.

This view displays selected storage class records for specific dates and times.

DATE

TIME

TREND

D Details

DS Data Set

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

None

Data Set

Advances to the PRDS view.

This view displays data set records for specific dates and times.

DATE

TIME

TREND

GRPTYPE

JOB

POOL

SCL

VOL

D Details

J Job

V Volume

SC Storage Class

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

None

Job

Advances to the PRJOB view.

This view displays job performance information about specific dates and times.

DATE

TIME

TREND

GRPTYPE

DSN

D Details

DS Data Set

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

None

Boxes

Advances to the PRPVBOXZ view.

For every box, this view displays a selected box record for a specific date and time.

DATE

TIME

TREND

GRPTYPE

CCU

DIR

See Box EZMenu (EZBOX).

EZBOX

Physicals

Advances to the PRPVOL view.

This view displays a selected physical volume record for a specific date and time. PRPVOL is logged for every physical disk. The view includes the 11-byte physical disk ID and 10-byte RAID-type description from the configuration component.

DATE

TIME

TREND

GRPTYPE

CCU

DIR

VOL

See Physicals EZMenu (EZPHY).

EZPHY

EMC Directors

Advances to the PRRDIR view.

This view displays selected director records for specific dates and times.

DATE

TIME

TREND

GRPTYPE

CCU

D Details

V Volumes

PV RAID Physical Volume

H History

I Daily Summary

W Weekly Summary

M Monthly Summary

None

RVA/STK Frames

Advances to the PRRSF view.

This view displays selected RVA records for specific dates and times.

DATE

TIME

TREND

GRPTYPE

CCU

VOL

See Box EZMenu (EZBOX)

EZBOX

ESS 2105 Ranks

Advances to the PRRRK view.

This view displays information about rank performance for the selected time period.

DATE

TIME

TREND

GRPTYPE

CCU

VOL

See Physicals EZMenu (EZPHY).

EZPHY

PAV Volumes

Advances to the PRVOL view.

This view displays selected volume records for specific dates and times. The view provides the 4-byte subsystem ID (suitable for summarization) and the 11-byte physical disk ID that is associated with the volume.

DATE

TIME

TREND

GRPTYPE

CCU

CHP

DSN

LCU

POOL

DIR

VOL

See Volume EZMenu (EZVOL).

EZVOL



Was this page helpful? Yes No Submitting... Thank you

Comments