Creating storage system diagnostics

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You can perform a warm start or an on-demand data (ODD) dump of a selected storage system to collect diagnostic information.

About this task

Sometimes IBM Support requires extra diagnostic information to help resolve a storage system issue by determining the root cause. In this scenario, it can be useful to create storage system diagnostics.

A warm start is an error recovery process for the DS8000 storage system. A warm start collects microcode data that is useful in diagnosing problems. It is designed for data integrity, data protection, and data capture. For more information about the warm start procedure, see your storage system documentation.

An ODD dump is a nondisruptive action to collect the diagnostic information.

Note: Creating system diagnostics is only available in the Copy Services Manager GUI if a storage system has an HMC connection. If the storage system only has a FICON z/OS connection, or is a SAN Volume Controller or XIV-based system, then the option is not displayed.

Follow these steps to perform a storage system warm start or ODD:

Procedure

  1. Log in to the Copy Services Manager GUI as an administrator.
  2. In the menu bar, click Storage > Storage Systems.
    You can also access this option from the Storage System Details page.
  3. On the Storage Systems page, select the ID for the storage system in the Storage System column.
  4. Click Select Action > Create System Diagnostics.
  5. Select from the following options: On Demand Dump (default), or Warm Start.
  6. Click OK.
    • If you choose the On Demand Dump option, the system starts to immediately process your request after you click OK.
    • If you choose the Warm Start option, a warning message appears in which you must confirm before the warm start initiates. A warm start is the equivalent of rebooting the system without powering it off.

      Click OK in the message to proceed with the warm start, or click Cancel to exit without performing the warm start.

Results

System diagnostics information is created, which can be used as needed in resolving issues.