I/O性能监控

当应用系统性能变慢的时候,系统管理员可能认为是FC SAN的问题导致。存储管理员可以直接登录SanScout平台,实时监控影响应用系统的Initiator - Target - LUN的性能参数。

 

SanScout目前对于I/O支持如下的性能相关参数:

 

读命令 (READ CMD)

  • Read commands issued
  • Read commands completed
  • min read size
  • max read size
  • Read data MB / sec
  • Read data frames / sec
  • Min cmd to First Data time (ms)
  • Max cmd to First Data time (ms)
  • Avg cmd to first data time (ms)
  • Min last data to response  time (ms)
  • Max last data to response  time (ms)
  • Avg  last data to response time (ms)
  • min read exchange completion time (ms)
  • Max read exchange completion time (ms)
  • Avg Read exchange completion time (ms)

写命令 (WRITE CMD)

  • Write commands issued
  • Write commands completed
  • Min Write size
  • Max Write size
  • Write MB /s
  • Write data frames /sec
  • Min cmd to transfer_ready time (ms)
  • Max cmd to transfer_ready time (ms)
  • Avg cmd to transfer_ready a time (ms)
  • Min  transfer_ready to first data time (ms)
  • Max  transfer_ready to first data time (ms)
  • Avg transfer_ready to first data time (ms)
  • Min last data to response  time (ms)
  • Max last data to response  time (ms)
  • Avg last data to response time (ms)
  • min write exchange completion time (ms)
  • Max write exchange completion time (ms)
  • Avg Write exchange completion time (ms)