[Dovecot] SSD drives are really fast running Dovecot

[Ed W]

> One of the systems to fail was a firewall running off SSD.

SSD or CF?

It would appear it's also possible to damage some flash memory by 
powering off at the wrong moment?  I had a router running on a nearly 
new SLC flash card and it kept suffering errors every 24 hours and 
perhaps it was filesystem corruption since it was kind of fixed when I 
rebooted.  Then after a few more days it died completely, briefly I 
could repartition it and then an hour later I could no longer even get 
it detected to the OS and hence it appeared absolutely completely dead.

So that's a new 4GB SLC card, using around 500MB of it and a light 
writeable filesystem running pfsense (perhaps a few writes per minute) 
and it died inside a month...  I don't have enough data to see if it 
died from wear or if I was just unlucky...

This is a cheap (ish) CF card though, not an SSD drive

Ed W