[Dovecot] SSD drives are really fast running Dovecot

[Rick Romero]

Quoting Marc Perkel <marc at perkel.com>:
>> I just replaced my drives for Dovecot using Maildir format with a
>   > pair of Solid State Drives (SSD) in a raid 0 configuration. It's
>   > really really fast. Kind of expensive but it's like getting 20x the
>   > speed for 20x the price. I think the big gain is in the 0 seek time.
>   >
>   > Here's what I bought.
>   >
>   > Crucial RealSSD C300 CTFDDAC256MAG-1G1 2.5" 256GB SATA III MLC
>   > Internal Solid State Drive (SSD)
>   > <http://www.newegg.com/Product/Product.aspx?Item=N82E16820148349>
>   >
>   >    *   2.5"
>   >    *   256GB
>   >    *   SATA III
>   >
>   >    * *Sequential Access - Read:* 355MB/sec (SATA 6Gb/s) 265MB/sec (SATA
>   >      3Gb/s)
>   >    * *Sequential Access - Write:* 215MB/sec (SATA 6Gb/s) 215MB/sec
>   >      (SATA 3Gb/s)
>   >    * *Power Consumption (Active):* 2.1W READ, 4.3W WRITE
>   >    * *Power Consumption (Idle):* 0.094W
>   >
>   > Running it on an Asus motherboard that supports SATA III - 6 core AMD
>   > CPU and 16 gigs of ram. Might be slightly off topic but this server
>   > screams!
Hey Marc,

Just for testing purposes, what does a dd speed test give you?

http://it.toolbox.com/blogs/database-soup/testing-disk-speed-the-dd-test-31069
IMHO, the key part is exceeding the RAM size, but for a "closer to
Maildir" comparison, a decent file size that exceeds the drive cache is
good too..

Rick