[Dovecot] Indexes to MLC-SSD

[Dan Swartzendruber]

Patrick Westenberg wrote:
> Ed W schrieb:
>
>>> I'm using NexentaStor (Solaris, ZFS) to export iSCSI-LUNs and I was
>>> thinking about a SSD based LUN for the indexes. As I'm using multiple
>>> servers this LUN will use OCFS2.
>>
>> Given that the SAN always has the network latency behind it, might you
>> be better to look at putting the SSDs in the frontend machines?
>> Obviously this then needs some way to make users "sticky" to one machine
>> (or some few machines) where the indexes are stored?
>
> Storing the indexes on several machines?
> In this case I have to synchronize them.
>
maybe i am missing something.  if a client has to fetch the index, the 
server has to read the index from disk and pass it back.  the network 
latency is unavoidable, but i don't see why putting the fastest possible 
SSD on the server isn't a win.  possibly i am misunderstanding something?