diskio 指标采集

简介

采集磁盘流量和时间指标到 DataFlux 中

前置条件

• 已安装 DataKit（DataKit 安装文档）

配置

进入 DataKit 安装目录下的 conf.d/host 目录，复制 diskio.conf.sample 并命名为 diskio.conf。示例如下：

# Read metrics about disk IO by device
[[inputs.diskio]]
  ## By default, telegraf will gather stats for all devices including
  ## disk partitions.
  ## Setting devices will restrict the stats to the specified devices.
  # devices = ["sda", "sdb"]
  ## Uncomment the following line if you need disk serial numbers.
  # skip_serial_number = false
  #
  ## On systems which support it, device metadata can be added in the form of
  ## tags.
  ## Currently only Linux is supported via udev properties. You can view
  ## available properties for a device by running:
  ## 'udevadm info -q property -n /dev/sda'
  ## Note: Most, but not all, udev properties can be accessed this way. Properties
  ## that are currently inaccessible include DEVTYPE, DEVNAME, and DEVPATH.
  # device_tags = ["ID_FS_TYPE", "ID_FS_USAGE"]
  #
  ## Using the same metadata source as device_tags, you can also customize the
  ## name of the device via templates.
  ## The 'name_templates' parameter is a list of templates to try and apply to
  ## the device. The template may contain variables in the form of '$PROPERTY' or
  ## '${PROPERTY}'. The first template which does not contain any variables not
  ## present for the device is used as the device name tag.
  ## The typical use case is for LVM volumes, to get the VG/LV name instead of
  ## the near-meaningless DM-0 name.
  # name_templates = ["$ID_FS_LABEL","$DM_VG_NAME/$DM_LV_NAME"]                            

配置好后，重启 DataKit 即可生效

采集指标

fields:

指标	描述	类型
reads	读取的次数	integer
writes	写入的次数	integer
read_bytes	读取的字节数	integer
write_bytes	写入的字节数	integer
read_time	等待读取的时间(毫秒)	integer
write_time	等待写入的时间(毫秒)	integer
io_time	I/O请求排队时间(毫秒)	integer
weighted_io_time	I/O请求等待的时间(毫秒)	integer
iops_in_progress	已发出但尚未完成的I/O请求数量	integer
merged_reads	合并的读取次数	integer
merged_writes	合并的写入次数	integer

tags:

名称	描述
name	设备名称
serial	设备序列号