IBM storage subsystem setup

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The storage subsystem used in this case study was an IBM® System Storage® DS8870 Model 2422.

These are the DASD disk devices that were used as z/VM® Linux™ guest operating systems disks:
  • different DASD models (model-27, model-54 and model-128) directly attached to the z/VM guests.
  • DASDs selected from 2 ECKD™ storage pools (storage pool striping enabled) and picked from both internal storage subsystem servers.
  • HyperPAV alias devices used for DASDs.
These are the FCP attached SCSI devices that were used as ECM data disks (FileNet® File Storage Area and ECM database):
  • 100 GiB and 250 GiB SAN-attached SCSI devices.
  • SCSI devices are picked from both internal storage subsystem servers.