tweak'e 0 Posted November 22, 2009 what would the data rate be to a hardrive from the DVR? 4 analog cameras, D1 res, 50fps(overall), best quality, mpeg4. just wondering what minimum speed hardrive would be required. i was just trying an old spare hardrive and it was loosing 7-8 seconds of footage every 5 minutes like the hardrive just wasn't quite fast enough. Share this post Link to post Share on other sites
Scruit 0 Posted November 23, 2009 what would the data rate be to a hardrive from the DVR?4 analog cameras, D1 res, 50fps(overall), best quality, mpeg4. just wondering what minimum speed hardrive would be required. i was just trying an old spare hardrive and it was loosing 7-8 seconds of footage every 5 minutes like the hardrive just wasn't quite fast enough. I was losing blocks of footage like that with my automotive grade HD (Seagate ST980818AM) I think the problem was it was 5400rpm, I suspect the drive was just too slow. I now use a 3.5" Western Digital WD1600, no issues. Just have to deal with the HD dying every 6 months. Share this post Link to post Share on other sites
tweak'e 0 Posted November 23, 2009 i see that segate is 52MBs sustained read which is proberly far to slow. my spare drive is around 60MB/s (or so they say). if the hardrives are dropping from atat100 to ata66 and the data requirment is well over what ata66 can dielever then it could end up with those sorts of problems. have you tried the lower quality options? less data may mean less problems, more bandwidth for data to be resent. Share this post Link to post Share on other sites
