SAS or SSD for Ubuntu 14.04 and data analysis Post: 302966368

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Special Forums Hardware SAS or SSD for Ubuntu 14.04 and data analysis Post 302966368 by cmccabe on Thursday 11th of February 2016 09:00:36 AM

02-11-2016

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SAS or SSD for Ubuntu 14.04 and data analysis

I am in the process of building a workstation and have a question related to performance. I am a scientist who deals with big data (average file size 30-50gb). My OS is ubuntu 14.04 and so far I have a 128gb dual xeon E5-2630 with 6 cores each. I/O buffering is an issue so I am adding a 256/512? PCIe card and either 2 SSD or SAS drives for the OS and software. Since the PCIe will be separate its main purpose will be for file transfer, so would a SAS or SSD be a better fit for the OS? I am leaning towards SAS for the buffering issue, but wanted to ask more knowledgeable users. I forgot to mention that there will be a separate 1 or 2TB drive. Any recommendations for the size of the SAS or SSD? Thanks Smilie

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LEARN ABOUT FREEBSD

hpt27xx

HPT27XX(4)						   BSD Kernel Interfaces Manual 						HPT27XX(4)

NAME

     hpt27xx -- HighPoint RocketRAID 27xx SAS 6Gb/s HBA card driver

SYNOPSIS

     To compile this driver into the kernel, place the following line in your kernel configuration file:

	   device hpt27xx

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   hpt27xx_load="YES"

DESCRIPTION

     The hpt27xx driver provides support for HighPoint's RocketRAID 27xx based RAID controller.

     These devices support SAS disk drives and provide RAID0 (striping), RAID1 (mirroring), and RAID5 functionality.

HARDWARE

     The hpt27xx driver supports the following SAS controllers:

     o	 HighPoint's RocketRAID 271x series
     o	 HighPoint's RocketRAID 272x series
     o	 HighPoint's RocketRAID 274x series
     o	 HighPoint's RocketRAID 276x series
     o	 HighPoint's RocketRAID 278x series

NOTES

     The hpt27xx driver only works on the i386 and amd64 platforms as it requires a binary blob object from the manufacturer which they only sup-
     ply for these platforms.  The hpt27xx driver does not work on i386 with pae(4) enabled.

SEE ALSO

     kld(4), kldload(8), loader(8)

HISTORY

     The hpt27xx device driver first appeared in FreeBSD 10.0.

AUTHORS

     The hpt27xx device driver was written by HighPoint Technologies, Inc..  This manual page was written by Xin LI <delphij@FreeBSD.org> for
     iXsystems, Inc.

BSD
								 December 28, 2011							       BSD