Steve Modica
Forum Replies Created
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We get contacted a lot for things like this.
People take some server hardware, install redhat, freebsd or windows, and then expect to hook it all up with 10Gb and have it go fast. It usually won’t for a number of reasons.
Typical operating systems are not tuned to deal with 10Gb ports very well. Their window sizes are not large enough in some cases. On others, they allocate a ton of memory for each port, but it’s not optimized for single stream video editing.
I have a feeling the Netgear switch does not have flow control on. Most switches ship with it off, and in standard core/edge switch setups, this is preferred. However this is not a core/edge setup. This is a single layer setup with a large number of systems pulling data from the server. Symmetric flow control is necessary.
Promise supports jumbo frames. However Apple’s system preferences tool has a bug. It will not allow jumbo frames if you set the speed of the device to 10Gb. Set it to Auto and it works. This is fixed in the next release.
Steve
Steve Modica
CTO, Small Tree Communications -
Use NFS. It works.
Steve Modica
CTO, Small Tree Communications -
Apple had a bug with their SMB implementation a while back where it would not work immediately after boot. You had to restart it (unshare, then share) and it would work. Frustrating stuff.
What’s odd here is that it’s greyed out. That means bon jour sees it. How does Finder know to make it grey? I can’t say I’ve ever seen that. What if you login as another user (clean preferences)
Steve Modica
CTO, Small Tree Communications -
Usually, when I see NFS freeze (or applications using it freeze) it was related to rpc.lockd not running. I was fooling around with NFS v4 (which has its own internal locking) and I was hanging stuff up all over the place. Our TZ systems all have rpc.lockd running and so far we haven’t had any trouble.
Steve Modica
CTO, Small Tree Communications -
I’m really curious about this After Effects comment. Does NFS not work with After Effects? I haven’t heard any complaints. I’d like to understand this.
Steve Modica
CTO, Small Tree Communications -
I’d be careful doing this.
I’ve heard a lot of people talk about file locking, but few apps actually do it. FCP X is one that does.
It uses NFS locking via rpc.lockd to actually lock the library. No telling what will happen if you open it in NFS, close FCP, mount with AFP and reopen. I’d be worried something will get dorked if another user comes along and opens it.Steve Modica
CTO, Small Tree Communications -
Still working on this. The official samba code won’t release until Spring of next year.
Steve Modica
CTO, Small Tree Communications -
Small Tree’s been working with the netatalk guys to improve AFP a lot.
There were improvements to the IO performance and some changes to how AFP responds to requests. All of this is in the 3.1.3 code I think.All these changes are in our TitaniumZ systems, but they are also rolling out into Linux based boxes too.
Steve Modica
CTO, Small Tree Communications -
I’m also running 10.9.4 with a 10gbe sanlink 2, and can confirm you still cannot set the MTU above 1500. Good to know it sounds like a fix might be on the way.
The bug is only in the GUI. You can set the MTU to 9000. It’s just that in Mavericks, the GUI won’t show 9000 as an option (or accept it) when a 10Gb media type is selected. In the “speed” section under “Hardware” just pick Auto and it’ll let you set 9000. You can also do it in the terminal with the networksetup command.
Steve Modica
CTO, Small Tree Communications -
I think this issue with 9000 byte MTUs on 10GbaseT is fixed in 10.9.4.
Steve Modica
CTO, Small Tree Communications