nice, with my ocz vertex2 tests i get this: sata1 can get about 130MB/s (sata1 = 1,5gb/s) sata2 can get about 270MB/s (sata1 = 3gb/s) i don´t remember but i think that each ´x´ on pci-express = 2.5gb/s, 4x=10gb/s onboard sata controllers are pci-express or pci based board (it´s hard linked in north bridge) 2011/2/1 Mathias Burén <mathias.buren@xxxxxxxxx>: > On 1 February 2011 11:37, John Robinson <john.robinson@xxxxxxxxxxxxxxxx> wrote: >> On 30/01/2011 12:12, Mathias Burén wrote: >> [...] >>> >>> Ah, good point. The sda is a 60GB SSD, I should definitely move that >>> to the PCI-E card, as it doesn't do heavy IO (just small random r/w). >>> Then i can have 4 RAID HDDs on the onboard ctrl, and 2 on the PCI-E >>> shared with the SSD. If the SSD is idle then I should get ideal >>> throughputs. >> >> Hmm, if you have an SSD, you might look at using bcache to speed up write >> access to your array. On the other hand, with only one SSD you potentially >> lose redundancy - do SSDs crash and burn like hard drives do? >> >> If the SSD is only being used as a boot/OS drive - so near idle in normal >> use - I'd swap it for a cheap small laptop hard drive and find somewhere >> else to put the SSD to better use. >> >> Cheers, >> >> John. >> >> > > Thanks for the input. My initial question was basically, "where's my > bottleneck". The SSD is hosting the OS + an XBMC database :-) so I > can't use it for anything else. > > // Mathias > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Roberto Spadim Spadim Technology / SPAEmpresarial -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
