[Simon Morgan]

When I capture on my internal drive there doesn’t appear to be any problems… so it must be a firewire issue… I did read a while back that the older G5’s had a problem with FW bus speed… Too bad that I can’t capture to a FW drive right now though… would save me some time…

Thanks again for the help

[Simon Morgan]

all of my footage captured via P2 should be fine though, correct?

SM

[Simon Morgan]

Thanks… That’s what I figured once I got back to the edit suite last night (MacPro 3.0GHz) and everything was fine.

Does that mean any footage that I captured that may have been in sync will have video degraded?

Thanks for all the help… I guess it’s time to invest in a Macbook Pro.

Cheers

[Simon Morgan]

Thanks for your help again…

Here are my results…

Striped channels 5/6/7 together – 110 write, 162 read
Striped channels 6/7/8 together – 74 write, 160 read
Striped channels 5/6/8 together – 43 write, 160 read

Striped channels 5/6 together – 112 write, 114 read
Striped channels 6/7 together – 113 write, 116 read
Striped channels 7/8 together – 115 write, 116 read
Striped channels 5/8 together – 110 write, 109 read

I thought that when I striped 5/6/7 together that told me that channel 8 had the bad drive on it… but when I only stripe 2 drives together, I get the numbers in the ballpark of where they should be.

So what now? I am totally stumped. Oh, and my other RAID array (4 drives) is posting speeds of over 220 mb/s constantly today… up from 140 yesterday… what the heck is going on?

Cheers.

[Simon Morgan]

Jeremy,

Thanks for the response.

Tried mounting as a RAID 0 using Mac Disk Utility… got pretty much identical write & read numbers as using softraid…

Then I mounted them as single drives using Disk Utility… and switching a couple cables around as you suggested, but actually got the same numbers from the same drives again… in other words I swapped port 1 & 2 and the drive speeds stayed the same ( I got 65mb/s write and read on port 2 whereas I got 56mb/s before)… so I’m guessing it’s not the card?

Does it matter that when I RAID them together my write speeds are way down, but my read speeds are up over 200mb/s… what does that mean?

Where do I go from here?

[Simon Morgan]

Bob…

I did as you told me and re-initialized the disks separately… here is how my 4 drives read
1 – 61.6 mb/s write, 64 mb/s read
2 – 56.4 mb/s write, 56 mb/s read
3 – 57.3 mb/s write, 58.2 mb/s read
4 – 65.6 mb/s write, 66.4 mb/s read

Does that mean drives 2-3 are pulling me down? that shouldn’t be the case really should it? none of the drives are hanging up, so they are still all good…

I’m puzzled… can you help?

SM

I am using AJA Kona System test utility to do this… is it reliable?

[Simon Morgan]

If I have only one SATA RAID connected, the write speeds are still down to 78MB/s and read is around 209.9MB/s… does that mean it isn’t my card…

Yesterday I wrote that it was the read speeds that were slow, my mistake… it’s the write speeds that are around 78MB/s… the read speeds are fine at over 200mb/s…

What d’ya think?

[Simon Morgan]

Actually the RAID is not full… it’s running with over 650GB left on the drives (out of 1.2TB)… and I had it the wrong way around, it’s my write speed that’s around 70MB/s and the read that’s at 210 MB/s… not sure if this makes any difference…

I’ll try to offload footage on that drive and go from there.

Cheers

[Simon Morgan]

‘if you want to edit to tape via HD-SDI, use the AJA Kona Easy Setup for the DVCPro HD format you’re editing with. Then go into Device Settings and change that to DVCPro HD Firewire instead of RS-422. The 1200A has an offset when editing to tape so you need to do a lot of trial and error to get it to accurately lay off your master to tape’

Thanks for your help… I would never have figured that out… I tried it today at the office and after a bit of guess and test to get the offset right, it worked great. Thanks again.

Morgster

[Simon Morgan]

Jeremy,

Thanks for the response… that’s what I thought. I can crash record no problems. Can you tell me which panasonic deck I need to output to? Does the new 1400a output via HDSDI assemble edit? I have been able to output to a sony HDCAM deck no probs.

Thanks for the help,

Morgster