Wireshark · Wireshark-dev: Re: [Wireshark-dev] Packet Loss due to Disk Contention with Running Dumpcap in a high packet rate en

[John Powell <jrp999@xxxxxxxxx>]

Hi Kurt,

I have purchased a 300 GB SSD and a PCI-e Disk Controller.

I am still in the planning stage as to how to set this up.

My initial ideas are to:

• Leave the SSD on the motherboard Disk Controller
• Connect the Platter Hard Drives to the PCI-e Disk Controller
  
• Send the initial capture files to be stored on the SSD
• Use RSync to move the files from the SSD to the Platter Hard Drives ( --remove-source-files )
  (this is required as I am receiving 1.5 TB a day and the SSD is only 300 GB)
  (http://www.cyberciti.biz/tips/linux-use-rsync-transfer-mirror-files-directories.html)
  (http://www.cyberciti.biz/faq/linux-unix-bsd-appleosx-rsync-delete-file-after-transfer/)
  (http://unix.stackexchange.com/questions/12198/preserve-the-permissions-with-rsync)
  (http://stackoverflow.com/questions/9586798/rsync-over-ssh-preserve-ownership-only-for-www-data-owned-files)
  (http://www.comentum.com/rsync.html)
  
• Investigate limiting the Bandwidth of RSync to reduce contention on the Platter Drives if required.
  (http://www.cyberciti.biz/faq/throttle-disk-io-rate-limit-disk-io/)
  

Thoughts?

-John

On Wed, Jan 9, 2013 at 6:48 PM, <ws.dev.list@xxxxxxxxxxxxxxxxxxx> wrote:

On 2012-12-14 14:13, John Powell wrote:

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.

I'm just curious. What are your results with the SSD?

BTW: did you try to 'ionice' dumpcap?

Cheers
Kurt

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