Implementación del programa de ventas.

Performance Monitor monitors volumes in parity groups and displays statistics about the average and the maximum usage rate in a specified period.

Performance Monitor also displays a graph illustrating changes in volume usage within that period.

To view usage statistics about volumes in a parity group: 1. Ensure that the Performance Management window is open. 2. In the tree, click the Physical tab.

3. In the list above the tree, select the storing period of statistics from

longrange and shortrange for display.

For details on the types of storing period of statistics, see Understanding Statistical Storage Ranges.

When you view usage statistics about volumes, some items displayed in the list differ depending on the selection of the storing period: longrange

or shortrange. If you want to use Volume Migration to migrate volumes, select longrange. This enables you to confirm the estimated usage rate of parity groups after migration. For information on using Volume Migration, contact the Hitachi Data Systems Support Center (see Calling the Hitachi Data Systems Support Center).

If you want to examine the ratio of ShadowImage processing, and so on, to all the processing in the physical drive, select shortrange.

The usage statistics for a same term might be slightly different between selecting shortrange and longrange because the monitoring precision of these two interval types differs. Especially, differences in read rates and write rates between the interval types are larger than other usage statistics. 4. In the tree, double-click the Parity Group folder.

The folder opens and a list of parity groups is displayed below the folder. 5. Select the desired parity group.

The list on the right displays usage statistics about volumes in the specified parity group. The displayed statistics are the average and the maximum usage rates for the period specified in the From and To boxes.

Notes:

• The list displays up to a maximum of 4,096 resources at a time. If the number of resources exceeds 4,096, use Previous and Next to display the remaining resources.

• If you change the date and time in the From and To boxes and then click Apply, Performance Monitor recalculates usage rates and updates information in the list. To change the date and time in From and To

boxes, use the arrow buttons and the sliders (for details, see Physical Tab).

• If an exclamation mark (!) is displayed before a usage rate, the reported volume usage rate is likely to be inaccurate, because the configuration has changed (e.g., volumes have been moved by Volume Migration or ShadowImage, or formatted by Virtual LVI or Open Volume

Management). For information on using Volume Migration, contact the Hitachi Data Systems Support Center (see Calling the Hitachi Data Systems Support Center).

• If a plus mark (+) is displayed before a usage rate 0, such as "+0", the

usage rate is not completely 0 but less than 1.

6. To display a graph illustrating changes in usage rate for volumes, select the desired volumes in the list and then click Draw.

Note:The range of monitoring and the gathering interval affects the time period represented by a graduation on the horizontal axis.

When selecting longrange for storing period of statistics:

When selecting shortrange for storing period of statistics:

Note:

• It is possible that the sum of the usage rate for each volume in a parity group is not equal to the usage rate for that parity group (see Viewing Usage Statistics on Volumes in Parity Groups). This is because the

Performance Management window rounds off fractions below the decimal point to the nearest whole number when displaying the usage rate for each volume.

• If the CU is not the monitoring target, all items in the row are displayed in italics. If you want to monitor those items, specify the CU as the monitoring target by using the Monitoring Option window.

The list displays the following items:

•

: A green checkmark ( ) indicates the graph illustrates changes in usage rate for the volume.

•

LDEV: Volumes (LDEVs) in the selected parity group, in this format: LDKC:CU:LDEV.

•

Emulation: Device emulation types.

•

Usage (%):

– Ave. (Total): Average usage rate in the specified period.

– Max.: Maximum usage rate in the specified period.

•

Read Rate (%):

– Rnd.: Random read rate, which is the ratio of random read requests to read and write requests.

– Seq.: Sequential read rate, which is the ratio of sequential read requests to read and write requests.

•

Write Rate (%):

– Rnd.: Random write rate, which is the ratio of random write requests to read and write requests.

– Seq.: Sequential write rate, which is the ratio of sequential write requests to read and write requests.

•

Parity Gr. Use[Exp] (%): This item is displayed only when you select

longrange for the storing period of statistics. Parity Gr. Use[Exp]

assumes the volume might be migrated out of the parity group (or uninstalled) and indicates expected (estimated) average and maximum usage rates of the parity group. The Ave. (Total) column indicates an estimated change in the average usage rate. The Max. column indicates an estimated change in the maximum usage rate.

For example, if the Ave. (Total) box for the volume 0:01 displays "20 -> 18", the average usage rate of the parity group that the volume belongs to is 20 percent. If the volume were migrated out of the parity group, the average usage rate of that group is expected to drop to 18 percent.

•

ShadowImage (%): This item is displayed only when you select

shortrange for the storing period of statistics. ShadowImage indicates the percentage of the processing of the following programs to all the processing of the physical drives, for each volume. This value is found by dividing access time to physical drives by the following programs by all the access time to physical drives.

– ShadowImage for IBM z/OS

– ShadowImage

– Compatible FlashCopy

– Compatible FlashCopy V2

– Volume Migration (For information on using Volume Migration, contact the Hitachi Data Systems Support Center (see Calling the Hitachi Data Systems Support Center).

– Copy-on-Write Snapshot

Ave. (Total): Average percentage of processing of the above programs in the specified period.

Max.: Maximum percentage of processing of the above programs in the specified period.

For details on the above programs, see the respective user's guides.

•

CLPR: Numbers and names of CLPRs corresponding to each parity group which the volume belongs to, in the format "CLPR-number:CLPR-name". For details on CLPRs, see the Virtual Partition Manager User's Guide.

In document Programa para la comercialización de mermelada de naranja en la ciudad de Babahoyo, provincia de Los ríos, período 2015 2016 (página 46-51)