The onstat -g iof Option

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The onstat -g iof Option

The onstat -g iof option prints asynchronous I/O statistics by chunk or file. This option is similar to the -D option, except that information on nonchunk files is also displayed. It includes information about temporary files and sort-work files.

Example Output

Figure 62. onstat -g iof Output

IBM Informix Dynamic Server Version 10.00.UC1 -- On-Line -- Up 01:55:32 -- 101376 Kbytes
AIO global files:
gfd pathname         totalops  dskread dskwrite  io/s
  3 rootdbs.1             613        0      613   0.3

Output Description

gfd: Global file descriptor number for this chunk
pathname: The pathname of the chunk
totalops: Total number of read and write operations that have occurred against the chunk
dskread: Number of disk read that have occurred against the chunk
dskwrite: Number of disk writes that have occurred against the chunk
io/s: Number of I/Os per second