Linux guest configuration

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A table of the Linux™ guest configuration variants used in the tests.

All Linux guests had the following in common:

  • A dedicated disk on a FICON® attached 3390 Model 27 DASD, formatted with two partitions: One partition for the root file system, and one for swapping
  • A virtual NIC attached to a z/VM® Virtual Switch (VSWITCH), connected through an OSA adapter to an internal network

Table 1 lists the specific Linux guest configuration variants.

Table 1. Linux guest configuration variants

Workload

# CPU

Guest Size

Additional I/O components

Java™

1

4 GiB

-

File system

1

4 GiB

Four FICON attached 3390 Model 27 DASD

For each DASD, eight HyperPAV alias devices were configured

Database

4 or 8

4, 8, 16 or 32 GiB

Four dedicated FCP adapters, used to connect to five 64 GiB SCSI disks. Multipathing was configured such that each SCSI disk was accessible through each FCP adapter.