System Ctl configuration file that is changed in kernel by the sap hdblcm to before performing the other processes

1. Sysctl.conf file thatispresentin /etc/stsctl.conf
 fs.aio-max-nr [maximum number of async I/O requests] : 18446744073709551615 ( = 2^64-1 =
ULONG_MAX)
 vm.memory_failure_early_kill [Method for killing process when a uncorrected memory error
occurs] = 1
 kernel.shmmax [Maximum shared memory segment size , default min size is 1 GB] =
1079741824
 kernel.shmmni [Maximum number of shared memory segment ]
o RAM>= 256 GB = 524288
o RAM>= 64 GB = 65536
o RAM< 64 GB = 4096
 kernel.shmall [System wide limit of total shared memory]
o RAM>=35.5 TB (shmmx*shmmni)/65536
o RAM< 35.5 TB (0.9*RAMin bytes)/4096
 Net.ipv4.ip_local_port_range [Lower limit of ephemeral port range] = 40000 [No changes are
applied if the SAP HANA database lifecycle manager (HDBLCM) detects or installs SAP Host
Agent version 7.20.162 or greater.]
 vm.max_map_count [Maximumnumberof virtual memory areas VMAs that a process can own
] = Depend on H/W platform