datasyncd(1M) (Sun Enterprise 10000 SSP 3.5 Reference Manual)

Sun Enterprise 10000 SSP 3.5 Reference Manual

datasyncd(1M)

NAME

datasyncd- data synchronization daemon

SYNOPSIS

datasyncd

CAUTION

Do not execute this daemon manually. The SSP startup script invokes it, then monitors and restarts it as needed.

DESCRIPTION

The data synchronization daemon synchronizes SSP configuration files between the main and spare SSP. Files are copied from the main to spare SSP through a TCP/IP connection over the private SSP data network. Traffic from datasyncd is routed through the private connection that is not used for control board management.

datasyncd synchronizes all platform and domain files listed in the SSP configuration file ($SSPVAR/.ssp_private/fad_files). datasyncd also synchronizes user-defined files identified in the data propagation list ($SSPVAR/.ssp_private/user_file_list). This list determines the user files to be copied from the main to spare SSP. The user-defined files must be readable and writable by user ssp. You control this data propagation list through the setdatasync (1M) command.

datasyncd monitors any modifications to these user files on the main SSP at hourly intervals (or at a time interval that you specify through the setdatasync command). If a user file has been modified since the last propagation, datasyncd copies the file to the spare SSP.

datasyncd does not verify the existence of user files on the spare SSP, nor does it monitor any modifications to user files on the spare. If you remove a user-defined file from the spare SSP, that file is not automatically repropagated until the corresponding file on the main SSP has been changed.

datasyncd relies on other SSP daemons, including fod(1M) and fad(1M) . The datasyncd daemon runs only on the main SSP.

FILES

The following files are supported:

$SSPVAR/.ssp_private/fad_files: SSP configuration file list
$SSPVAR/.ssp_private/user_file_list: data propagation list