Hp StorageWorks Scalable File Share Manuel d'utilisateur télécharger pdf (Page 81)

Viewing performance statistics 4–25

Figure 4-4 A detailed graph showing throughput to OST devices from specified network devices

4.7.3.4 Viewing RPC transfer sizes or disk I/O transaction sizes

There are four configuration files that provide information about remote procedure call (RPC) transfer sizes

and disk I/O transaction sizes. The files are:

• ost-brw.cfg—Provides cumulative RPC statistics, including the number of pages of data in each

RPC sent or received on the server, for all OST devices served by the server.

• ost-brwD.cfg—Provides RPC statistics similar to those provided in the ost-brw.cfg file, but for

each individual device.

• ost-blk.cfg—Provides cumulative disk I/O transaction size statistics, including the size of each

I/O block written to or read from disk on the server, for all OST devices served by the server.

• ost-blkD.cfg—Provides disk I/O transaction size statistics similar to those provided in the

ost-blk.cfg file, but for each individual device.

To view disk I/O transaction sizes or RPC transfer sizes, perform the following steps on the ColPlot page. In

this example, the data in the ost-blk.cfg file is plotted:

1. Enter the dates and times for which the graph is to be plotted (areas 1 and 2 in Figure 4-1).

2. In the text field that allows you to specify the server name (area 3 in Figure 4-1), enter the name of the

server; for example, south3.

3. In the Detail Filters text box (area 6 in Figure 4-1), type in the name of the device for which you want

the graph to be plotted. For example, to view information for device /dev/cciss/c3d1, type in

c3d1.

4. In the Plots by CFG File(s) text field (area 7 in Figure 4-1), type in the name of the file you want to be

plotted, for example, ost-blk.cfg.

5. Click the Generate Plot button.

Figure 4-5 shows an extract from an example of the graph that will be generated. The key on each section

of the graph shows whether the section relates to a read or write bucket, and the bucket size.

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 361 362

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Hp StorageWorks Scalable File Share Manuel d'utilisateur Page 81