Guardian Database; Agent Input/Output Queues In The Post Office - Novell GROUPWISE 8 - ADMINISTRATION Administration Manual

Outgoing messages from local senders are stored in the message database assigned to each sender.
Incoming messages from users in other post offices are stored in the message database that
corresponds to the message database assigned to the sender in his or her own post office. In each
case, only one copy of the message is stored in the post office, no matter how many members of the
post office it is addressed to.
Attachments Directory
The attachments directory (
text, and distribution lists that exceed 2 KB. Items of this size are stored more efficiently as files
than as database records. The message database contains a pointer to where each item is found.

35.3.3 Guardian Database

The guardian database (
for the following subordinate databases in the post office:
User databases (
Message databases (
Prime user databases (
Library databases (
The guardian database is vital to GroupWise functioning. Therefore, the POA has an automated
back-up and roll-forward process to protect it. The POA keeps a known good copy of the guardian
database called
the transaction in the roll-forward transaction log called
to the
ngwguard.db
file (the "fall back" copy) and applies the transactions recorded in the
new, valid and up-to-date
In addition to the POA back-up and roll-forward process, you should still back up the
ngwguard.db, ngwguard.fbk
Without a valid ngwguard.db file, you cannot access your e-mail. With current
ngwguard.rfl
The
ngwguard.dc
subordinate databases. Also called a dictionary file, the
information, such as data types and record indexes. If this dictionary file is missing, no additional
databases can be created in the post office.

35.3.4 Agent Input/Output Queues in the Post Office

Each post office contains agent input/output queues where messages are deposited and picked up for
processing by the POA and the MTA. The MTA transfers messages into and out of the post office,
while the POA handles message delivery.
For illustrations of the processes presented below, see
and "Message Delivery to a Different
and Directory
478 GroupWise 8 Administration Guide
) contains subdirectories that store file attachments, message
offiles
) serves as the master copy of the data dictionary information
ngwguard.db
)
userxxx.db
)
msgnnn.db
puxxxxx.db
and
dmsh.db dmxxnn01-FF.db
. Whenever it modifies the
ngwguard.fbk
file on startup or during a write transaction, it goes back to the
ngwguard.db
, and
ngwguard.rfl
files, a valid
ngwguard.db
file is the structural template for building the guardian database and its
Domain" in
Structure.
)
)
ngwguard.db
ngwguard.rfl
.
files regularly to protect against media failure.
file can be rebuilt should the need arise.
ngwguard.dc
"Message Delivery to a Different Post
GroupWise 8 Troubleshooting 3: Message Flow
file, the POA also records
. If the POA detects damage
ngwguard.fbk
file to create a
ngwguard.rfl
ngwguard.fbk
file contains schema
Office"
and