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Hitachi Vantara Knowledge

ShadowImage Data Collection

ShadowImage Data Collection

 

RAID Subsystems

The following procedures should be followed when collecting data for ShadowImage failures. They apply to 9900, 9900V, USP, NSC55, USP-V, USP-VM and VSP.

 

Customer or CE
  • Supply the data described in the CCI Data Collection procedures (Open Systems only).
  • Detail exactly what was happening when the dump was taken or the problem was occuring. For example, was there large SI Initial Copy or Resync activity being performed?
  • Provide Graph-Track or Perfmon data if this is a performance problem.
  • Provide the time difference between the clock on the SVP and real time.

 

CE
  • Turn on the SVP monitor.
  • Turn on Mode 31.
  • Perform AutoDump/detail.
  • Turn off Mode 31.

 

DF Subsystems

The following procedures should be followed when collecting data for ShadowImage failures. They apply to 9500V and AMS.

 

Customer or CE
  • Supply the data described in the CCI Data Collection procedures.
  • Detail exactly what was happening when the dump was taken or the problem was occuring. For example, was there large SI Initial Copy or Resync activity being performed?
  • Provide a simple trace from the subsystem.
  • Provide PFM data if this is a performance problem.
  • Provide the time difference between the clock on the subsystem and real time.