Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.1, Руководство по настройке

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Chapter 19. Pre-Installation Preparation and Verification
72
To verify
shmmni
, execute:
cat /proc/sys/kernel/shmmni
shmmni = 4096
To verify the
shmall
parameter, execute the command below.
shmall
is used in 10g R1.
cat /proc/sys/kernel/shmall
shmall = 2097152
To verify shmmin, execute:
ipcs -lm |grep "min seg size"
shmmin = 1
Note that
shmseg
is hardcoded in the kernel, the default is much higher.
shmseg = 10
To verify
semmsl
, execute:
cat /proc/sys/kernel/sem | awk '{print $1}'
semmsl = 250
To verify
semmns
, execute:
cat /proc/sys/kernel/sem | awk '{print $2}'
semmns = 32000
To verify
semopm
, execute:
cat /proc/sys/kernel/sem | awk '{print $3}'
semopm = 100
To verify
semmni
, execute:
cat /proc/sys/kernel/sem | awk '{print $4}'
semmni = 128
To verify
file-max
, execute:
cat /proc/sys/fs/file-max
file-max = 65536
To verify
ip_local_port_range
, execute:
cat /proc/sys/net/ipv4/ip_local_port_range
ip_local_port_range = 1024 65000
Note
Do not change the value of any kernel parameter on a system where it is already higher
than listed as minimum requirement.