Currently Being ModeratedJan 18, 2013 6:37 AM (in response to Isidore Isou)
Do you have ANYTHING else connected to any firewire port on the computer. All mac's have only one firewire bus and all firewire devices drop to the speed of the slowest item on the bus. Depending on the vintage of your macbookpro, you can get a firewire 800 card which will add a second bus to the computer. Also, you must have at least 10% free space on all drives. The fuller the drive gets, the slower it gets.
And it's possible the drive has a corrupted folder structure. Run diskutility: drive repair on it. And if you've got diskwarrior, run that. If you don't have it, it definitely a worthwhile purchase.
And test the read/write speeds for the drive. There are some utilities out there that will do that. The drive may be dying.
Currently Being ModeratedJan 18, 2013 6:40 AM (in response to Michael Grenadier)
And you might want to do some research on exactly how much speed you need to do a 3 angle multiclip of proreslt 1080 material. You may be asking too much of firewire 800.
Currently Being ModeratedJan 18, 2013 8:49 AM (in response to Michael Grenadier)
Thanks for your help.,
- Nothing else connected,
- 20% free space on every drive,
- Made a disk utility drive repair,
- Disk warrior rebuilt utility : after 10 minutes it seems stoping.. maybe it is very long ? Will try again later.
This is the graph of my FW800 disk :
- Blackmagic Disk speed test :
FW800 = Write 7 MB/s, Read 37 MB/s,
internal = Write 53, Read 53.
I guess my disk got a hardware problem. I am wondering if the 2,5" format is the cause. Hope Disk warrior could fix it but I don't think it will.
Currently Being ModeratedJan 18, 2013 10:34 AM (in response to Gary Scotland)
FW800 is too slow for 3 streams of ProRes. Your internal drive works because it is directly connected via SATA. If you had an eSATA (external SATA) drive, that would work better. Or even better yet, a RAIDed eSATA drive. But that would only work if you have an Express24 slot on your computer, with eSATA adapter. Unless your MBP has Thunderbolt...then that would work too.
If your laptop only has Firewire 800 as the fastest external connection...then you'll be hard pressed to edit 3 streams of ProRes.
Currently Being ModeratedJan 18, 2013 11:55 AM (in response to Shane Ross)
the OP could try mediamanaging to dv anamorphic. Shane, would the drive handle that for 3 streams?
Are there any resources out there saying what kinda thruput you need per stream for various formats?