Re: Using a hi-I/O instance as the master node in a StarCluster Cluster

From: Dustin Machi <no email>
Date: Fri, 04 Jan 2013 11:44:47 -0500

I've never messed with them on AWS, but I assume that these get mounted
wherever the local disks get mounted normally.../mnt. The hi1.4xlarge
should have two 1tb volumes mounted
(http://aws.typepad.com/aws/2012/07/new-high-io-ec2-instance-type-hi14xlarge.html)
or available to mount (fdisk -l). The don't think the IOPS provisioning
will matter much here (for the the read/writes to those volumes anyway),
though they may impact the performance of the EBS volume itself of
course.

Dustin

On 4 Jan 2013, at 11:06, Oppe, Thomas C ERDC-RDE-ITL-MS Contractor
wrote:

> Dear Sir:
>
>
>
> I was wondering if anyone has tried using a high-performance I/O
> instance (e.g., "hi1.4xlarge") as the master node in a StarCluster
> cluster, with the other nodes being Sandy Bridge "cc2.8xlarge"
> instances. When I bring up a single "hi1.4xlarge" instance outside of
> StarCluster, there is an option to attach one or two 1-TB SSD disks,
> but when I bring up a cluster with "hi1.4xlarge" as the master node,
> the SSD disks are nowhere to be found. Is a plug-in necessary to ask
> for the SSD disks to be available? I have a code that needs the
> fastest I/O available for writes with a combined size of 100GB during
> the run. I have tried single Standard and Provisioned IOPS EBS
> volumes, but the I/O performance to these volumes is poor, even with
> "pre-warming". Has anyone written a plug-in for using striped volumes
> in StarCluster? I would appreciate any comments or pointers to
> information.
>
>
>
> Tom Oppe
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Received on Fri Jan 04 2013 - 12:41:10 EST