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Allan’s ZFS Server Build | TechSNAP 34

Allan walks us through his epic ZFS server build, find out why he needs 48GBs of RAM!

Plus: The UN has suffered a user database leak, but the situation might not be as bad as it sounds, we’ll explain!

All that and more, on this week’s episode of TechSNAP!

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Show Notes:

UN Site Compromised, Usernames and Passwords Exposed


Duqu Attackers Destroyed Their C&C Server, Covered Tracks


Apache Vulnerability Could Expose Internal Systems, Trivial Island Hopping


Feedback:

Allan finished the build of his ZFS server and shared the results with us:

Parts List

Photos

Q: What OS
A: FreeBSD 9.0-RC2, Will upgrade to 9.0-RELEASE when it comes out.

Q: What version of ZFS?
A: ZPool 28 and ZFS 5 (ZPool 21 introduces the deduplication system, which isn’t available in FreeBSD 8.2 which only has ZPool 15)

Q: What kind of throughput do you get?
A: Sequential read and write: 600+ megabytes/second. I write out a 16gb file in under 27 seconds. Reading it back took under 2.8 seconds (over 6 gigabytes/sec) because the entire file was stored in the ZFS ARC (Adaptive Replacement Cache)

Q: Power Supplies
A: Redundant 920watt Platinum Level (94%+) Efficient Power Supplies, fed from APC 7900 PDUs

Q: Do you suggest I build a server or buy a server?
A: I usually build, but I am a control freak. Buying can be a good option too

Q: What about the RAID Controller
A: Adaptec 6805, comes with FreeBSD drivers for 6.x, 7.x and 8.x, but not 9.x (because it is not out yet). Luckily, they include the source code, so I was able to compile the driver as a loadable module for 9.x. Adaptec has also submitted the changes to FreeBSD to be included in future releases.

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