Sara,
We use the XServe RAID with 400GB drives in this suite but we also have Xserve RAID’s in other suites with 250GB and 180GB drives. I was able to test the suite in question with a 250GB drive RAID with no noticeable improvement. I connected the 400GB RAID to another edit suite where we managed to capture a handfull of clips with no timecode breaks and no dropped frames.
I also replaced the Apple fibre channel PCI-X card, the Decklink Pro HD card and all 4 RAM modules to eliminate all potential suspects. This made no difference on this system.
Our local Apple support suggested a possible issue with the Spotlight app and a possibility of indexing of the media files interrupting the capturing process. We dragged the entire RAID voulume into the Privacy window in the Spotlight preferences and this solved the problem. We got through about a dozen of captures on a first take without any aborts or interruptions.
I can’t guarantee this will work for everyone but go ahead and try it as it only takes a few seconds to complete. I initially suspected the RAID but we were able to verify it in our case. Try capturing a short clip to a second internal drive (not the main system drive) if you have one, or an external firewire drive to either eliminate or narrow down the suspected hardware. Let me know whether this worked for you or not.
Bryan,
Can you provide more details of your RAID failure – a dead drive, blown power supply, unable to capture, unable to playback or edit to tape, etc.?
Are your 7 drives striped with RAID 0 or RAID 5? Do you have a spare 250GB drive?
Brent,
What do you capture your media to? An Apple XServe RAID, firewire drive, external SCSI drives?
If you can successfully capture using compression but your system drops frames when using uncompressed settings your drive(s) may not be able to handle the uncompressed stream. Is this your first try with the 8 bit uncompressed settings or have you been able to capture with this setting before?