In a year or two you won't be able to buy 1T or even 2T disks cheaply.
More spindles are good more cores are good too. This is a fuzzy art.
A hard fact is that HBase cannot (at the moment) handle more than 8-10T per server with HBase, you'd just have extra disks for IOPS.
You won't be happy if you expect each server to store 24T.
I would go with more and smaller servers. Some people run two RegionServers on a single machine, but that is not a well explored option at this point (up to recently it needed an HBase patch to work).
You *definitely* have to do some benchmarking with your usecase. You might be able to get away with fewer servers, you need to test for that.
From: Ramu M S <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Saturday, February 8, 2014 12:10 AM
Subject: Re: Regarding Hardware configuration for HBase cluster
What about high density storage servers that has capacity of up to 24
drives. There were also some recommendations in few blogs about having 1
core per disk.
1TB disks have slight price difference compared to 600 GB. With
negotiations it'll be as low as 50$. Also price difference between 8 core
and 12 core processors is very less, 200-300$.
Do you think having 20-24 cores and 24 1TB disks will also be an option?
On Feb 8, 2014 11:19 AM, "lars hofhansl" <[EMAIL PROTECTED]> wrote: