Seagate ST336704FC Guia de Configuração descarregar pdf (Página 29)

Chapter 1: HP Clustered File System Commands 23

Latencies are in milliseconds. The minimum and maximum latency is

reset every interval. The number of I/Os queued is an instantaneous value

that is taken at the time of the sample.

NOTE: If interval is too long, the average latency computation may be

affected by 32-bit computer wrap-around. A total of 71 minutes of

I/O may be measured before counter wrap-around. This does not

necessarily equate to 71 minutes in realtime.

Dump I/O Statistics in Raw Format

The rawstat command dumps general I/O statistics for each device in raw

format. The output is typically passed to programs or shell scripts for

further processing. Numbers are the raw counter values, not computed

per sample. The syntax for the command is:

rawstat [interval [count]]

interval is the number of seconds between samplings. The default is one

second. count is the number of samples to make; the default is to sample

indefinitely.

The output consists of ASCII text delimited by carets. The fields are:

1. PSD device name

2. Sample number

3. Sampling interval

4. Number of targets

5. Current active target

6. Number of I/O sizes

7. First I/O size (power of 2)

8. Number of I/Os queued (includes raw)

9. Number of raw I/Os queued

10. Number of MP failovers

11. Number of MP fatal errors

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Seagate ST336704FC Guia de Configuração Página 29