Re: dell versus hp

On Nov 14, 2007 5:24 PM, Alan Hodgson <ahodgson(at)simkin(dot)ca> wrote:
> On Tuesday 13 November 2007, Jeff Frost <jeff(at)frostconsultingllc(dot)com> wrote:
> > Ok, Areca ARC1261ML. Note that results were similar for an 8 drive RAID6
> > vs 8 drive RAID10, but I don't have those bonnie results any longer.
> >
> > Version 1.03 ------Sequential Output------ --Sequential Input-
> > --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> > Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
> > /sec %CP 14xRAID6 63G 73967 99 455162 58 164543 23 77637 99
> > 438570 31 912.2 1 ------Sequential Create------ --------Random
> > Create-------- -Create-- --Read--- -Delete-- -Create-- --Read---
> > -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec
> > %CP 16 12815 63 +++++ +++ 13041 61 12846 67 +++++ +++ 12871 59
> >
> >
> > Version 1.03 ------Sequential Output------ --Sequential Input-
> > --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> > Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
> > /sec %CP 14xRAID10 63G 63968 92 246143 68 140634 30 77722 99
> > 510904 36 607.8 0 ------Sequential Create------ --------Random
> > Create-------- -Create-- --Read--- -Delete-- -Create-- --Read---
> > -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec
> > %CP 16 6655 16 +++++ +++ 5755 12 7259 17 +++++ +++ 5550 12
>
> OK, impressive RAID-6 performance (not so impressive RAID-10 performance,
> but that could be a filesystem issue). Note to self; try an Areca
> controller in next storage server.

607 seeks/sec on a 8 drive raid 10 is terrible...this is not as
dependant on filesystem as sequential performance...

merlin