z/VM Problem Determination Flow Chart Analysis

NOTE: if using the zTUNE product, many of the suggestions will be in the ESATUNE report. This is can be very helpful and a fast way to see an obvious problem!

Level links = general information
Analysis links = specific information

(0) Read this first for pertinent information about Velocity's performance methodology and guidelines -

• Review the zVPS Performance Methodology

(1) What is the system configuration (how the system hardware/software/etc is set up)? -

• Review the The System Configuration Level

(2) What is the current view of the system?

• Review the System load analysis
• Review the Wait state constraint analysis

(3) What are the system and subsystems showing?

• Review the The CPU Level
• Review the Understanding MFC Data
• Review the The LPAR Level
• Review the LPAR weights/overhead analysis
• Review the LPAR pool analysis
• Review the The Storage Level
  • Review the System storage analysis
  • Review the System page analysis
  • Review the IBR analysis
• Review the The DASD Level
• Review the DASD configuration analysis
• Review the DASD utilization analysis
• Review the DASD cache analysis
• Review the The Network Level
• Review the Network configuration analysis
• Review the Network data rate analysis
• Review the QDIO utilization analysis
• Review the OSA utilization analysis

(4) What are the users showing?

• Review the The User Level
• Review the Wait state constraint analysis
• Review the The CPU Level
• Review the User resource utilization analysis
• Review the Linux configuration analysis
• Review the Linux utilization analysis
• Review the Validate virtual CPUs
• Review the Storage Level
  • Review the User storage analysis
  • Review the Linux storage analysis
  • Review the VDISK analysis
• Review the The DASD Level
• Review the DASD performance analysis
• Review the The Network Level
• Review the Network user data rate analysis