Sybase Adaptive Server, Configuration Manual

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Restoring correct permissions
34
Adaptive Server Enterprise
Restoring correct permissions
Sybase software files and directories are installed with the correct access
permissions. If you notice that the permissions are no longer correct, you can
restore the correct permissions with the script
setperm_all
, located in the
$SYBASE/$SYBASE_ASE/install directory.
File descriptors and user connections
The number of user connections used by Adaptive Server cannot exceed the
number of file descriptors available to Adaptive Server on the operating
system. When configuring user connections on Adaptive Server, the System
Administrator should take into account the number of file descriptors available
per process. Although most of the open file descriptors are available for user
connections, a few are used by Adaptive Server for opening files and devices.
For HP-UX
The kernel parameters
maxfiles
and
maxfiles_lim
control the number of file
descriptors available to any one process. The limit is 10,000 for HP-UX on a
32-bit system, and 60,000 on a 64-bit system.
To obtain the current values on the file descriptors use the Korn or Bourne shell
ulimit
command:
ulimit -n
For AIX
The number of file descriptors per process is determined by the operating
system parameter
open_max
. The default value of
open_max
is 32767.
Adaptive Server can use a maximum of 2000 file descriptors per engine,
regardless of the value of
open_max
. For more information on setting
open_max
, see the AIX operating system documentation.
To obtain the current value of the
open_max
parameter, use the Korn or Bourne
shell ulimit command:
ulimit -n