On 18.03.2013 14:48, Pim van Pelt wrote:
Hoi,
2013/3/18 Andre Oppermann <opperm...@networx.ch>:
The Netflix guys wiring up a fully loaded ASR9010 with 118 single
mode fibers:
http://www.youtube.com/watch?v=tyb-nnRNwfw
Cool!
Their CDN boxes are almost stock FreeBSD 9.1 based, contain some
35 HDDs at 4TB plus a couple of SSDs and push about 15Gbit/s *each*
during the evening hours. They are limited by HDD (seek) bandwidth.
>
Do you think they use ZFS+L2ARC as the filesystem of their content push system?
IIRC they use plain UFS2 on the disks. They don't care about disks
dying, so no RAID. The availability of the content is controlled
from upper layers. So if a disk dies requests for that content get
redirected to another box with the same content. Only the popular
movies and shows are stored on the CDN boxes. The long tail is
served from AWS S3.
--
Andre
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