Through SAP logon 730 we are connecting our client dev system through vpn.
Every two days we are getting error as SAP SYSTEM MESSAGE N while login and after restarting the whole system in os level we can able to login.
Don't no how to solve this problem.
Database is Sybase and linux os.
Database memory is 80% used.
And I got a suggestion as
I got the solution of this problem and it is resolved now.
the reason was statement cache is not configured with sufficient memory.
there is document for sybase ASE Runtime Best Practice
for increasing the statement cache you have to first increase max memory.
for this i have changed below parameters in my system and it is working fine now 
sp_configure 'js job output width',2048
go
sp_configure 'max memory', 0, '6G'
go
sp_configure 'statement cache size', 0, '200M'
go
sp_configure 'procedure cache size', 0, '1G'
go
sp_configure 'permission cache entries',256
go
sp_configure 'allocate max shared memory',1
go
sp_configure 'number of user connections',500
go
sp_configure 'number of sort buffers', 2000
go
Could anyone help as how to configure this.
