[Dovecot] what to expect from changing index location

[Davide Vaghetti]

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Hello everybody,

I have one thousand virtual users with mdbox mailbox format and 10 GByte
quota. I have noticed some performance problem related to I/O (the
mailbox disk is a 6TB raid1+0 on ISCSI), so I want to put the index
files on a different disk. My actual mail_location is:

mail_location = mdbox:/var/vmail/%-1.1u/%u/mdbox

and I want to switch to

mail_location =
mdbox:/var/vmail/%-1.1u/%u/mdbox:INDEX=/var/indexes/%-1.1u/%u/

But I cannot figure out a pair of things:

- - do the switch trigger the rebuilding of the index files?

- - can I get rid of all the old index files?

- - how much the index files (no fts squat) can grow?

thanks in advance
bye
davide
- -- 
Dott. Davide Vaghetti
Centro Servizi Informatici Facolta' di Ingegneria
Universita' di Pisa
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