OSI/MHS Configuration and Management Manual
Management Environment for OSI/MHS
OSI/MHS Configuration and Management Manual—424827-003
2-4
The OSI/MHS Databases
OSI/MHS creates a few additional database files used during normal subsystem
operation and recovery. These files are within each group and are used for internal
status during startup and shutdown operations. They are located in the working
subvolume (WORK-SV) for each group.
The installation procedure creates these databases and, under normal operations,
TMF manages them. However, to be sure that you always have adequate backup, you
should back up your subsystem regularly, using either the BACKUP utility or TMF
online dumps.
Entry database A record for each message in one of the three
delayed-message queues (deferred, link-retry,
or route-retry). Each queue is represented by
an ENTRY object.
OSI address
database
A record of information for each OSI address
that is defined to this OSI/MHS subsystem.
MS configuration
database
A record of static information about the
configuration of all the subsystem message
stores (information not found in the records of
the MS CLASS, MS GROUP, and MS
PROCESS objects).
RTS configuration
database
A record of static information about the
configuration of each RTS process contained in
each MR group.
Distribution list DLIST database Records of DLIST objects, representing
distribution lists.
DLISTMEMBER
database
Records of DLISTMEMBER objects,
representing members of distribution lists.
Closed user
group
CUG database Records of CUG objects, representing closed
user groups.
CUGMEMBER
database
Records of CUGMEMBER objects, representing
members of closed user groups.
CUG search
database
Records indicating, for each O/R name, the
closed user groups to which that name belongs.
PDU store
databases
PDU stores for the
GI, LO, MR, MS, and
RS groups
∗
Key-sequenced Enscribe databases containing
protocol data units (PDUs).
Ms SQL
database
A mailbox for each
user, up to 1,000 per
MS group
Messages to be delivered to each user.
Table 2-1. Contents of the OSI/MHS Databases (page 2 of 2)
This Database… Includes… Which Contains…
∗
Storage time is brief for LO, MR, or RS groups. Storage time can be long for an MS group, because that is
where messages wait to be retrieved by users. Likewise, storage time can be long for a GI group, because it
waits for the GI application.