Hello again, Also, EBS volumes can be attached, but the performance issues cause other issues when running a healthy cluster. From experience running clusters on EBS volumes bring their own set of unique problems and are harder to debug.
Here's a quick link that provides a bit more background information on why it's not the best fit for Cassandra. http://www.mail-archive.com/user@cassandra.apache.org/msg11022.html Thanks, Joaquin Casares DataStax Software Engineer/Support 2011/10/4 Yi Yang <i...@iyyang.com> > AFAIK it's around 450G per ephemeral disk. > BTW randomly you can get high performance EBS drives as well. Performance > are good for DB but are random in IOps. > ------Original Message------ > From: Yang > To: user@cassandra.apache.org > ReplyTo: user@cassandra.apache.org > Subject: EC2 raid0 disks ? > Sent: Oct 5, 2011 5:01 AM > > it seems that how many virtual disks you can have is fixed: > > on m2.4xlarge you have 2 disks, while on m2.2xlarge you have only 1, > so I can't setup a raid0 on m2.2xlarge > > am I correct? > > Thanks > Yang > > 從我的 BlackBerry(R) 無線裝置
