Hardware

This section details the hardware configuration used in the tests.

The host system was an IBM® System z196, Model 2817-M66.

On that system two LPARs, LPAR1 and LPAR2, were identically configured with 4 shared CPs, 20 GiB central storage and 2 GiB expanded storage each. For some workload tests we used 8 shared CPs per LPAR, and central storage was increased to 34 GiB.

ECKD™ disk storage was provided on an IBM System Storage® DS8800, Model 951 with 8 host adapters connected with 4 FICON® Express8 8 Gbit channel cards via a FICON switch to the IBM System z196.

SCSI disk storage was provided on the same IBM System Storage DS8800, Model 951, with four host adapters connected with 4 FICON Express8 8 Gbit channel cards via a FICON switch to the IBM System z196.

System connectivity between the LPARs was provided through two FICON Express4 4Gbit channel cards connected through a FICON switch, using a total of four FICON channels.

The general IOCDS configuration is the same as that used in z/VM 6.2 Live Guest Relocation with Linux Middlewarez/VM 6.2 Live Guest Relocation with Linux Middleware. However, only one specific ISFC logical link configuration was used for this part (see z/VM configuration).