[mythtv-users] Backend for fast commercial flagging (HD-PVR recordings)

Steve Heistand steve at heistand.org
Tue Mar 24 12:48:04 UTC 2009


Ronald Frazier <ron at ronfrazier.net>, said on Tue Mar 24, 2009 [08:20:33 AM]:
} >>> I will be doing up to 4 commercial flagging jobs at once, depending on
} >>> what's on of course.
} >
} > Won't you run into disk-i/o troubles, stuttering ..
} 
} He was asking about 13Mbit files, so if he needs 4 recording + 4
} flagging  (not to mention anyone watching a recording) then he's gonna
} need 104 Mbit/sec. Even the fastest hard disk (the velociraptor) won't
} keep up with this (even it's sequential read/write speeds will drop
} below this from time to time). However, any pair of half decent hard
} drives should have no trouble handling this as long as the recordings
} are split between them, or if they are in a RAID 0 setup.
} 

your average sata drive is 30-40 MB/s, really good ones 70MB/s.
but fortunately 104 is Mbits not MB. so a single drive could keep
up with 4 streams. though if its also a system drive it wont
be happy about it.

-- 
"Why is it so hot inside this handbasket?"
--
Steve Heistand
steve at heistand.org


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