Hi Urban,
I'm interesting in your hardware configuration, in percent how much is the I/O on indexes volume and how in maildata volume?
Without index on SSD you will be able to run 28k users on RAID10 (SATA/SAS) only?
I'm evaluating if store indexes, on my configuration, on SSD for improving performance.
Thanks
Il 14/09/2015 09:47, Urban Loesch ha scritto:
Hi Rajesh,
our setup looks as follows:
we are running linux-vserver as virtualization technology
we have 2 dedicated IMAP/POP3 Proxies in front of 8 dovecot containers.
totally about 2900 concurrent imap sessions on each imap proxy and about 180 concurrent pop3 sessions
all dovecot containers are running on the same hardware (no problems until today): DELL PER720 with 2x 200GB RAID 1 SSD's for dovecot indexes, 8x 4TB RAID 10 for maildata, 2x300GB RAID1 for OS 64GB RAM, 2x CPU E5-2640 0 @ 2.50GHz
-- Alessio Cecchi https://www.linkedin.com/in/alessice