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Re: filesystem: 12h to delete 32GB of data
Wed May 06 11:01:04 2009
Wojciech Puchar wrote:
means you had 6 million files. df -i would have been more useful in
the output above.
This brings a number of questions up:
* Are you _sure_ softupdates is enabled on that partition? That's
he showed mount output - he has softdeps on.
* Are these 7200RPM disks or 15,000? Again, going to make a big
on 7200 RPM ordinary SATA disk i deleted 15 million files taking 300GB
(squid cache) in less than 30 minutes.
for sure it's because of his "hardware raid".
i've NEVER seen "hardware raid" that is actually faster than non-raid
config, or gmirror/gstripe config.
usually it's far much slower
Sorry, but my experience with that very server using a P400 controller
with 256MB write cache is very different. My benchmarks showed that
controller using Raid5 (with only 4 disks) is significantly faster than
The days when hardware controllers could automatically be considered
slow are long gone. The hardware does get faster over time. Don't make
any assumptions without doing benchmarks.
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Re: filesystem: 12h to delete 32GB of data Wojciech Puchar
Re: filesystem: 12h to delete 32GB of data Brian A. Seklecki