>
> Thus, I asked about hints which could help me to find these evidences and make a proposal to my Managers
> for upgrading to the latest version.
>
Just do a slapcat or ldapsearch objectclass=* on the master and then
on the replicas to find missing entries. You will then have to
manually fix them. Or just copy your master's database to the slaves
and start them from scratch.
As far as a proposal for upgrading, I installed slurpd and found that
openldap 2.3 + bdb could do write operations 10x faster than openldap
2.1+ ldbm and read operations 5-6x faster. That means that the same
hardware you're currently using can now service at least five times as
many clients. My management seemed very pleased with the free upgrade
that equated to $100k worth of server equipment and no additional
licensing/support costs. :)
This is also a good time for you to upgrade to solaris 10, since
solaris 8 is almost EOL.