1
vote
1answer
380 views

please explain my fio results - is O_SYNC|O_DIRECT misbehaving on linux?

I'm going mad over figuring out what the problem could be with one of our storage boxes. With a simple fio script I'm testing random writes using bs=1M and direct=1. The SSD is a Samsung 840pro ...
0
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2answers
207 views

linux virtual server with io issues - deadline vs noop elevator

I have a Linux virtual server experiencing IO issues from MySQL. Would using the deadline io elevator possibly be preferable to noop in this case? Thanks
1
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1answer
1k views

Optimize linux for serving http static content

What would be the system tunables to enhance serving static content? Like increase/decrease swappines, how to max out disk caching and so on...
0
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1answer
224 views

Possible to write an implement of RAIDZ or RAIDZ2 for the MD driver in the Linux kernel?

I am curious on if it is possible to have an implement of RAIDZ and/or RAIDZ2 in the MD driver in the Linux kernel? From my understanding of it is that the RAIDZ version is equivalent to a RAID 5, ...