RDF/IMP, IMPX, and ZLT System Management Manual

Introducing RDF
HP NonStop RDF/IMP, IMPX, and ZLT System Management Manual—524388-002
1-16
Extractor Process
•
For NonStop SQL/MP files (DDL operations) only, the following file-label
modification records:
PURGEDATA
•
Stop-RDF-Updater records
•
TMF shutdown records
•
File incomplete records
•
File complete records
The extractor filters out all other records and does not send them to the receiver.
Among those filtered out are audit records for volumes and files not protected by RDF
(and files implicitly or explicitly excluded by INCLUDE/EXCLUDE lists) and most of the
Figure 1-5. Extractor Process Operation
28 KB Buffers
Audit
File
Master Audit Trail (MAT)
Primary Disk Mirror Disk
56 KB
Read
Audit
File
56 KB
Read
Extractor
(incl. Filter)
Unneeded Data
Discarded
Expand Lines
28 KB Per Message
To Receiver
Primary node