Master server
Parameter | Explanation | Value to be set | Type |
|---|---|---|---|
kernel.shmmax | Maximum segment size in shared memory | 1048576 + | Maximum |
kernel.shmmni | Maximum number of shared memory segments | 30 | Maximum |
*1: "Number of disks for the shared disk device" refers to the following:
In the case of a disk array unit, this is the number of logical units (LUN).
In all other cases, this is the number of physical disks.
For semaphore settings, set the values for each parameter in the following format:
kernel.sem = SEMMSLvalue SEMMNSvalue SEMOPMvalue SEMMNIvalue
Parameter | Explanation | Value to be set | Type |
|---|---|---|---|
SEMMSLvalue | Maximum number of semaphores for each semaphore identifier | No change | - |
SEMMNSvalue | Number of semaphores for the system as a whole | 11 Minimum of 41 required | Additional |
SEMOPMvalue | Maximum number of operators for each semaphore call | No change | - |
SEMMNIvalue | Number of semaphore operators for the system as a whole | 2 Minimum of 22 required | Additional |
Parameter | Explanation | Value to be set | Type |
|---|---|---|---|
kernel.msgmax | Maximum message size | 16384 | Maximum |
kernel.msgmnb | Maximum value for messages that can be held in one message queue | 4194304 | Maximum |
kernel.msgmni | Maximum value for message queues in the system as a whole | 8192 | Maximum |
Slave server / collaboration server
For semaphore settings, set the values for each parameter in the following format:
kernel.sem = SEMMSLvalue SEMMNSvalue SEMOPMvalue SEMOPMvalue
Parameter | Explanation | Value to be set | Type |
|---|---|---|---|
SEMMSLvalue | Maximum number of semaphores for each semaphore identifier | No change | - |
SEMMNSvalue | Number of semaphores for the system as a whole | 11 Minimum of 41 required | Additional |
SEMOPMvalue | Maximum number of operators for each semaphore call | No change | - |
SEMOPMvalue | Number of semaphore operators for the system as a whole | 2 Minimum of 22 required | Additional |
