Forcing The Backlink Process To Run; Updating The Edirectory Schema For Netware - Novell EDIRECTORY 8.8 SP2 Installation Manual

every existing attribute, the object size grows. These additions affect the disk space, processor, and
memory needed.
Two factors increase performance: more cache memory and faster processors.
For best results, cache as much of the DIB Set as the hardware allows.
eDirectory scales well on a single processor. However, Novell eDirectory 8.7 took advantage of
multiple processors. Adding processors improves performance in some areas—for example, logins
and having multiple threads active on multiple processors. eDirectory itself is not processor
intensive, but it is I/O intensive.
The following table illustrates typical system requirements for eDirectory for NetWare:
Objects
100,000
1 million
10 million
Requirements for processors might be greater than the table indicates, depending upon additional
services available on the computer as well as the number of authentications, reads, and writes that
the computer is handling. Processes such as encryption and indexing can be processor intensive.
Of course, faster processors improve performance. Additional memory also improves performance
because eDirectory can then cache more of the directory into memory.

1.4 Forcing the Backlink Process to Run

Because the internal eDirectory identifiers change when upgrading to Novell eDirectory, the
backlink process must update backlinked objects for them to be consistent.
Backlinks keep track of external references to objects on other servers. For each external reference
on a server, the backlink process ensures that the real object exists in the correct location and verifies
all backlink attributes on the master of the replica. The backlink process occurs two hours after the
database is open and then every 780 minutes (13 hours). The interval is configurable from 2 minutes
to 10,080 minutes (7 days).
After migrating to eDirectory, we recommend that you force the backlink to run by issuing the
following commands from the server console. Running the backlink process is especially important
on servers that do not contain a replica.
1 At the server console, enter set dstrace=on.
2 Enter set dstrace=+blink.
3 Enter set dstrace=*b.
4 When the process is complete, enter set dstrace=off.

1.5 Updating the eDirectory Schema for NetWare

When upgrading a NetWare server to eDirectory 8.8, you might need to update the eDirectory
schema by running DSRepair on the server that has the master replica of the root partition.
Processor
Pentium* III 450-700 MHz (single)
Pentium III 450-700 MHz (dual)
Pentium III 450-700 MHz (2 to 4)
Memory
384 MB
2 GB
2+ GB
Installing or Upgrading Novell eDirectory on NetWare
Hard Disk
144 MB
1.5 GB
15 GB
13