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Suddenly drop frame under un-compressed 8-bit SD

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Suddenly drop frame under un-compressed 8-bit SD
by Leo Leung on Jun 26, 2009 at 4:15:44 am

The system work fine about 2 year and found out the capture from BMD DeckLink HD PCIe drop frames and stop the progress under un-compressed PAL 8-bit SD coding to our Xserver (2.75T, RAID-5) or STARDOM (3T, RAID-5).

But, if the coding changed to DV PAL or PAL 8-bit JPEG it will be fine. I suspect the RAID througput problem, but after run the BM Disk Speed Test that the Xerver Disk Write rate to 167.5 to 189.4 MB/s. That's mean the RAID of write speed big enough for the SD uncompressed 8-bit.

I have no any idea of that.

Mac: 4 x 2.5Ghz PowerPC G5
Memory: 4G DDR2 SDRAM
OS X: 10.4.11
Storage: Xerver 2.75T RAID-5 and STARDOM 3T, RAID-5)




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