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## 1.3.2 Hardware configuration 

The lab environment used the server and configurations as described in this section. 

## IBM LinuxONE III with 63 IFL, and 1.5 TB RAM 

 On this server, 4 partitions (LPAR) had been defined as follows: 

GLYPH<SM590000> 2 Native Linux LPAR for Oracle RAC database 

GLYPH<SM590000> 1 LPAR hosting an Oracle WebLogic Server application server cluster 

GLYPH<SM590000> 1 LPAR for z/VM, hosting 2 Linux guests for IBM MQ queue managers and Temenos lock manager 

The LPARs were defined in PR/SM using Shared IFL and had a sufficient weight to ensure that all processors were configured in Vertical-High (both for z/VM and Native Linux). Using Vertical-High processing allows the best performance for IBM LinuxONE processors. It removes the constraint of having a dedicated processor, which makes changes on the LPAR less dynamic. In this lab environment, the IFL processors were used with and without SMT2 to minimize the number of physical cores defined, while providing sufficient bandwidth for applications with many threads. 

## IBM DS8886 with 512 GB of cache using two disks technologies 

8.5 TB HPFE (High-Performance Flash Enclosure) and 20 TB HDD (Hard Disk Drive SAS 600 GB 15k RPM) were used, depending on the data stored. 

In this configuration, database disks (managed by Oracle ASM) were stored on HPFE and Linux root file systems were stored on HDD. HDD was also used to store backups from the system using IBM FlashCopyfi services. From a format perspective, RAID 5 was used for all 

