[Dovecot] howto disable indexing on dovecot-lda ?

[Adrian Minta]

Hello,
is it possible to disable indexing on dovecot-lda ?

Right now postfix delivers the mail directly to the nfs server without 
any problems. If I switch to dovecot-lda the system crashes do to the 
high I/O and locking.
Indexing on lda is not very useful because the number of of imap logins 
is less than 5% that of incoming mails, so an user could wait for 3 sec 
to get his mail index, but a new mail can't.

Dovecot version  1.2.15
mail_nfs_storage = yes
mail_nfs_index = yes

Than you !