BSD/UnixFreeBSD er langt i frå dødt

[siDDis]

http://lists.freebsd.org/pipermail/freebsd-stable/2012-June/068129.html

 

Yes, we are indeed using FreeBSD at Netflix! For those who are interested, I

recently moved from Yahoo to Netflix to help support FreeBSD for them, and

I'm definitely impressed with what is going on there. Other than a few small

changes, we're using stock FreeBSD 9, tracking the 9-stable branch on a

regular basis. Our chassis is a semi-custom 4U 19" form factor with thirty six

3TB SATA disks and 2 SSDs. Each disk has its own UFS+J filesystem, except for

the SSDs that are mirrored together with gmirror. The SSDs hold the OS image

and cache some of the busiest content. The other disks hold nothing but the

audio and video files for our content streams. We connect to the outside world

via a twin-port Intel 10GBe optical NIC (only one port is active at the moment),

and we use LSI MPT2 controllers for 32 of the 36 disks. The other 4 disks

connect to the onboard AHCI SATA controller. All of the disks are

direct-attach with no SAS backplanes or expanders. Out-of-band management

happens via IPMI on an on-board 1Gb NIC. The entire system consumes

around 500W of power, making it a very efficient appliance for its functionality.

Netflix is also at the front of the internet pack with IPv6 roll-out, and FreeBSD

plays an essential part of that. We've been working hard on stabilizing the

FreeBSD IPv6 stack for production-level traffic, and I recommend that all users

of IPv6 update to the latest patches in 9-stable and 8-stable. Contact me

directly if you have questions about this. That said, we're excited about World

IPv6 Day, and we're ready with AAAA DNS records and content service from both

Amazon and the traditional CDNs as well as our OpenConnect network.

>From an advocacy standpoint, Netflix represents 30% of all North American

internet traffic during peak hours, and FreeBSD is becoming an integral part

of that metric as we shift traffic off of the traditional CDNs. We're expanding

quickly, which means that FreeBSD is once again a core part of the internet

infrastructure. As we find and fix stability and performance issues, we're

aggressively pushing those changes into FreeBSD so that everyone can

benefit from them, just as we benefit from the contributions of the rest of the

FreeBSD ecosystem. We're proud to be a part of the community, and look

forward to a long-term relationship with FreeBSD.

If you have any questions, let me know or follow the information links on the

OpenConnect web site.

Scott

[Sokkalf™]

Noen grunn til at de ikke bruker ZFS, med det diskoppsettet?

[Zerge]

ZFS er et volum/filsystem som fungerer ypperlig på 1 host. I skyen derimot, så ser man gjerne på en hel appliance som en brikke i en stor redundant lagringsløsning. Følgelig tror jeg at Netflix benytter et ekstra logisk lag med såkalt "cloud FS" for å samordne alle appliancene.

[siDDis]

Nå er jo dette cache servere som plasseres ute hos ISPane. Trenger ikkje ZFS til sånt.

[siDDis]

Det som gjer mest inntrykk er at dei ikkje brukar RELEASE, men køyre FreeBSD 9-STABLE med oppdateringar i jevne mellomrom. Det er tøft gjort!

[tingo]

De må jo ha sin egen løsning for å distribuere "sine" deler likevel, da er det sikkert ikke mye ekstrajobb å bruke -stable istedet for release.

Og Scott sier jo at de bruker / trenger IPv6, da er det nok viktig å få inn endringer så raskt som mulig.