Re: Packet Loss due to Disk Contention with Running Dumpcap in a high packet rate environment

[John Powell <jrp999 () gmail com>]

Hi Jeff,

Thanks for the heads up - I have obtained a 300 G SSD that I will
experiment with.

I will let you know if I find the same result.

Richard suggested using XFS and putting the metadata onto the SSD.  I have
never worked with XFS before so if you are anyone else has any experience
with splitting metadata from an XFS file system to a different drive from
the data, guidance would be excellent!!

Thanks again for helping me work this issue through!

-John

On Thu, Dec 13, 2012 at 4:17 PM, Jeff Morriss <jeff.morriss.ws () gmail com>wrote:

> John Powell wrote:
>
> > I am looking at using a SSD for my OS and my Capture volume which may
> > help out with the Disk IO issue but eliminating the copy from the /TMP
> > would definitely be an asset.
>
> I found it interesting that at one of the Sharkfest presentations a few
> years ago one of the CACE tech (now Riverbed) guys said NOT to use SSDs for
> high-speed capturing.  IIRC they had tried them and found them slower than
> old-fashioned high-speed disks for continuous writing.
>
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