[molpro-user] flash solid state drives

[Kirk Peterson]

Sorry, I should have been more specific.  Our setup for these iMacs only has 1 SATA and 1 SSD (they only have room for 2 drives).  So my improved performance is indeed with respect to a single SATA drive. Our clusters typically have 3-4 raid0 striped SATAs such as Millard describes.  Anyone do raid0 SSDs?

-Kirk

On Jul 31, 2012, at 9:54 PM, Millard H. Alexander wrote:

> i might disagree:   an SSD drive is indeed faster than a single SATA drive.   However, if you put two SATA drives together with software raid0 (striped), then the combined drive beats the SSD.  (but Kirk might have a more up-to-date experience).  on our machines we typically link 4 SATA drives as raid 0 (striped but not mirrored) and have an additional SATA drive for backup.     
> 
> Begin forwarded message:
> 
>> From: Kirk Peterson <kipeters at wsu.edu>
>> Subject: Re: [molpro-user] flash solid state drives
>> Date: July 31, 2012 3:26:54 PM EDT
>> To: harding <harding at anl.gov>
>> Cc: "molpro-user at molpro.net" <molpro-user at molpro.net>
>> 
>> Larry,
>> 
>> We do this on some of our new iMacs and the improvement is very noticeable compared to just SATA drives.
>> 
>> -Kirk
>> 
>> 
>> On Jul 31, 2012, at 11:41 AM, harding wrote:
>> 
>>> Has anyone had experience putting molpro scratch files on a flash solid state drive?
>>> 
>>> 
>>> _______________________________________________
>>> Molpro-user mailing list
>>> Molpro-user at molpro.net
>>> http://www.molpro.net/mailman/listinfo/molpro-user
>> 
>> _______________________________________________
>> Molpro-user mailing list
>> Molpro-user at molpro.net
>> http://www.molpro.net/mailman/listinfo/molpro-user
> 
> ---
> millard alexander, distinguished university professor
> department of chemistry and biochemistry 
>     institute for physical science and technology
> university of maryland, college park, maryland, 20742-2021, usa
> tel:  +1.301.785.4791
> website:   www2.chem.umd.edu/groups/alexander
> 
> 
> 
> 
> 
> 
> _______________________________________________
> Molpro-user mailing list
> Molpro-user at molpro.net
> http://www.molpro.net/mailman/listinfo/molpro-user

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.molpro.net/pipermail/molpro-user/attachments/20120801/010a0dd8/attachment.html>