Sybase 12.5.1, User Manual

Page: 78 / 210

hs_create_playback_session
64
Historical Server
target
specifies the target results of the playback session. Valid values are:
•
client
(default) – enables playback to the client.
•
file
– enables creation of a new session containing all the data
specified by this
hs_create_playback_session
command and by
subsequent
hs_create_playback_view
commands. Use the
hs_initiate_playback
command to create the new session. Setting
target to
file
is not allowed if the summarization_interval parameter
is
raw
or
actual
.
directory_name
when target is
file
, this parameter specifies the directory where the new
files are created. This parameter is ignored when target is
client
. The
default is the Historical Server home directory.
The operating system account that started Historical Server must have
execute (search) and write permission on the specified directory.
protection_level
when target is
file
, this parameter specifies the permission level that the
hs_initiate_playback
command assigns to the data files for the newly
created session. The protection level controls viewing the metadata in
the control file (using the
hs_list
command) and creating playback
sessions with the data (using the
hs_create_playback_session
command). Valid values are:
•
private
(default) – specifies that the new files will be password-
protected. The files will be accessible only to the same account that
created them or to the Historical Server superuser.
•
public
– gives unrestricted access to the data in the new session’s
files.
•
null
– implements the default value,
private
.
When target is
client
, this parameter is ignored.