Determining the relationship between MDisks and RAID arrays or LUNs

Each managed disk (MDisk) corresponds with a single RAID array, or a single partition on a given RAID array. Each RAID controller defines a LUN number for this disk. The LUN number and controller name or ID are needed to determine the relationship between MDisks and RAID arrays or partitions.

This task assumes that you have already launched the SAN Volume Controller Console.

Perform the following steps to determine the relationship between MDisks and RAID arrays:

  1. Click Work with Managed Disks > Managed Disks in the portfolio. The Viewing Managed Disks panel is displayed.
  2. Click the name of the MDisk that you want to view. The Viewing Managed Disk (MDisk) Details panel is displayed.
  3. Record the controller name and controller LUN number.
  4. Click Work with Managed Disks > Disk Controller Systems in the portfolio.
  5. Click the name of the controller that you recorded in step 3 to show the detailed view of the controller. The Viewing General Details panel is displayed.
  6. Record the vendor ID, the product ID and worldwide node name (WWNN).
  7. Use the vendor ID, the product ID and WWNN to determine which controller presents this MDisk.
  8. From the native user interface for the controller that presents this MDisk, list the LUNs that the controller presents and match the LUN number with that noted in step 2. This is the exact RAID array and partition that corresponds with the MDisk.
Parent topic: Managed disks
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