[mythtv-users] Another take on large-capacity disk enclosures

Yeechang Lee ylee at pobox.com
Tue Jun 16 19:10:25 UTC 2009

Steve Heistand <steve at heistand.org> says:
> any journaled filesystem is easy to fsck, its the rebuilding a drive
> that takes a while these days. 20 drives would take a while to init
> and or rebuild if you had to. not like days of course but unless you
> crank up the cpu/bandwidth limits way up it would be 10+ hours.

Building, yes; said 6.6TB/16 takes 4-6 hours, as mdadm (still!)
doesn't use more than one core. Reading a new drive after a hardware
failure (or rebuilding the array after a crash) nowadays only takes a
few seconds, though, thanks to internal bitmaps.

Frontend/backend:	P4 3.0GHz, 1.5TB software RAID 5 array
Backend:		Quad-core Xeon 1.6GHz, 6.6TB sw RAID 6
Video inputs:		Four high-definition over FireWire/OTA
Accessories:		47" 1080p LCD, 5.1 digital, and MX-600

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