Chris Murphy: Activity About Popular
Chris Murphy

Member Since:
March 9th 2013
158 Posts
100 posts
Sharing a thunderbolt raid drive between two new Mac Pros
by Nathan Sangster 7 years ago
We are looking to freshen up our 5 year old Mac Pro edit suites to the new Mac Pro coming out soon. We will be switching from FCP 6 to Adobe CS6 and I was wondering if one RAID drive with 2 Thunderbol
Re: Sharing a thunderbolt raid drive between two new Mac Pros
by Chris Murphy 4 years ago
I don't understand the proposed topology. The Sonnet adapter is connected to computers. Assuming you want 10GigE for all computers, you'll need three of them, one for each computer, with the mini conn
I/O scheduling in SAN
by Kamran Mirzoyev 5 years ago
Could anyone please explain to me which part of the SAN is responsible for doing I O scheduling Let's say when a Virtual Machine (Linux) residing within a server initiates I O request, is it a hypervi
Re: I/O scheduling in SAN
by Chris Murphy 5 years ago
The I O scheduler is a function of the kernel. For a VM arrangement that includes the guest and host VMs. It gets really tricky optimizing this because the caching policy for the VM makes a difference
thunderbolt shared storage ? What about USB 3.1 ?
by Bob Zelin 5 years ago
This industry is killing me. So many people seem to want a native thunderbolt shared storage system, even though there are countless options for 1G, 10G, and Fiber Channel - but NO, they want Thunderb
Re: thunderbolt shared storage ? What about USB 3.1 ?
by Chris Murphy 5 years ago
The bigger confusion is USB 3.1 Gen 1 vs USB 3.1 Gen 2. Apple's USB-C uses USB 3.1 Gen 1, which is 5Gbps bandwidth, not the 10Gbps bandwidth offered in Gen 2.
Pegasus R6 - 1MB Stripe size default?
by Brad Bussé 6 years ago
*edit - my unit is the Pegasus2 R6* I just plugged in my 12TB Promise Pegasus R6 to my nMP. It's 28% done with synchronization after a couple of hours. I'm using the utility to look at how it's config
Re: Pegasus R6 - 1MB Stripe size default?
by Chris Murphy 6 years ago
Weird. Anyway, this sort of thing requires RAID logs, and often kernel messages are helpful also. These days kernel messages get dumped into the system.log and can be filtered by typing the word kerne
6 TB drives internal on Mac Pro?
by Tom Gomez 6 years ago
Greetings Earthlings, Just wondering if anyone knows how to find out if the new 6TB drives will work internally on older Mac Pros Late generation PPC and first generation intels We're thinking of turn
Re: 6 TB drives internal on Mac Pro?
by Chris Murphy 6 years ago
4KB alignment is a concern with outdated software. Mainly it's Windows XP era software, and some Linux utilities before 2007 that could have an issue. But it's long since patched for 1MB alignments on
move internal RAID
by Rob Alexander 6 years ago
Hi All, I'm upgrading my Mac Pro (2008) to a 2012 tower. In my old machine I have 3 x 1TB drives software striped to make a 3TB volume. Is it possible to straight swap them slot for slot into the new
Re: move internal RAID
by Chris Murphy 6 years ago
The advice to make a current backup before proceeding with any modification of an array is good. Apple software raid writes quite a healthy amount of metadata to each disk so it ought to be capable of
Super slow transfer time
by Dan Colins 7 years ago
During downloading of various formats, I experienced unusually slow transfers. I tried isolate the components and still had many problems. The problems seem to be when going to 2 different G-Raid Mini
Re: Super slow transfer time
by Chris Murphy 7 years ago
Use Blackmagic Speed Test from the App Store. Either post the result, or if you're convinced they indicate a problem or departure from the G-Technology specs then I'd call G-Technology and ask them wh
internal hard drive not showing up: what are my options???
by Nick Natteau 7 years ago
After not seeing my secondary internal hard drive on my 2008 MacPro desktop running Mavericks, I first verified that "hard drives" were checked in the Finder window. Then I ran Disk Utlity and discove
Re: internal hard drive not showing up: what are my options???
by Chris Murphy 7 years ago
One drive missing usually means it has failed or has been disconnected. Since this is raid0 (striped set) that would mean the entire volume is useless which is why it's offline. Formatting is not goin
Inconsistant Error -36 when copying files
by Tim Wingert 7 years ago
Hello! In transferring files from my internal RAID to an external drive, the "some data in File XXXXX cannot be read written" error -36 keeps popping up. The thing is-- that sometimes I CAN move the f
Re: Inconsistant Error -36 when copying files
by Chris Murphy 7 years ago
Looks like disk4 is the logical device created from disk0s2, disk1s2, disk2s2 as raid0. The previous error message: Jan 23 10:06:54 edits-mac-pro kernel 0 : AppleRAID::completeRAIDRequest - error 0xe0
NFS does not work with OS X Mavericks
by Bob Zelin 7 years ago
so my little trick for getting ADD SAN Location to FCP X does not work with OS X Mavericks. Only up to OS X 10.8.5. I am very disappointed. There is a note about problems on the Bresink website. Hopef
Re: NFS does not work with OS X Mavericks
by Chris Murphy 7 years ago
OK so I've played with this on 10.8.5 and I'm getting some fairly craptastic behavior. Without sudo I can cp read or write a file from to an NFS share without difficult, and with OK performance. Howev
OSX 10.9 and codecs
by Erik Lindahl 7 years ago
Apple is finally "pulling the plug" and starting to seriously move away from QuickTime to AV Foundation in 10.9. For the end user a huge boon is the loss of certain codecs, amongst others are RGB NONE
Re: OSX 10.9 and codecs
by Chris Murphy 7 years ago
Yes, from an archiving standpoint, any data that uses proprietary encoding means you have to put effort into aging the content to guard against it becoming stuck in time. So long as those encodings ar
Monitor Calibration Across Multiple Systems...
by Kyle Rebar 7 years ago
Hey Creative Cows, I need to color calibrate three separate systems for consistency at work. We have two 2012 iMacs and a slightly older MacPro with a Cinema HD display. Doing standard calibrations on
Re: Monitor Calibration Across Multiple Systems...
by Chris Murphy 7 years ago
Ideally what you want is a display that does internal calibration so that you're not depending on the lower quality calibration produced via curves in the video card. The NEC PA series are quite nice
mini-SAS on Thunderbolt?
by Brad Bussé 7 years ago
I'm upgrading another "new" Mac Pro and need to get an external RAID. Knowing that the new Mac Pro release is imminent, and the new platform will have TB ports but no internal PCIe slots, I'm not sure
Re: mini-SAS on Thunderbolt?
by Chris Murphy 7 years ago
Xserve RAID has two options: verify and rebuild parity. Verify reads data and parity chunks, and reports mismatches. Rebuild reads data chunks and writes new parity chunks. Verify is the one to use re
CompactFlash Extreme Pro vs SDXC Memory Card Extreme
by Craig Alan 7 years ago
SanDisk 64GB CompactFlash Memory Card Extreme Pro 600x UDMA vs SanDisk 64GB SDXC Memory Card Extreme Pro Class 10 UHS-I Are they both as good. CompactFlash way more expensive. To be used in 5D. Mac Pr
Re: CompactFlash Extreme Pro vs SDXC Memory Card Extreme
by Chris Murphy 7 years ago
Aha! I wrote getting CF to perform worse than SD Reverse that. Somehow getting SD to perform worse than CF. Panasonic just came out with a mini version of their P2 cards. If I had a bunch of the very
2013 Mac Pro - In action
by Christian Schumacher 7 years ago
http: www.youtube.com watch v=wShNx6cdk_8
Re: 2013 Mac Pro - In action
by Chris Murphy 7 years ago
Perhaps I'm missing something. I'm only seeing GigE Presto PCIe cards. i find it rather clunky to put have to buy a PCIe expansion chassis, and put in a 10GigE PCIe card, in order to get 10GigE on a T
Adobe support says Thunderbolt external is not "supported' by premiere
by Jorge Graupera 7 years ago
Hi Everybody. I've been using Premiere for a few years now with a 2009 iMac using a FW800 external as a scratch disc holding all my CANON DSLR footage assets. Performance was good and stable but I wan
Re: Adobe support says Thunderbolt external is not "supported' by premiere
by Chris Murphy 7 years ago
The original statement mentioned array size as the factor determining performance, rather than number of disks, and it also didn't distinguish between reads and writes. It's true that there is a raid5
Showing film on projection system - color and look way off.
by Anthony Susnick 7 years ago
I just got back from testing my film at a venue I will be showing it at next week. It was shown on a large projection system. The laptop monitor showed the film perfectly but on the screen the picture
Re: Showing film on projection system - color and look way off.
by Chris Murphy 7 years ago
I think the responses thus far are heading in the right direction, it's probably the projector. Have a tech go through the projector's OSD menu, and video or photograph all of the current settings (ce
iMacs and Fusion Drives
by Howie Young 7 years ago
For those editors using a 2012-2013 iMac with a fusion drive, have you had any issues or problems with the fusion drive while editing with FCP X Is there a way to partition the SSD portion of the driv
Re: iMacs and Fusion Drives
by Chris Murphy 7 years ago
"Fusion Drive" is a term like "Bootcamp" that encompases several different things, it's not a single thing or product. A Fusion Drive is made by leveraging CoreStorage, which is sorta like the logical
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