Kirk Bocek wrote:
Steve Bergman wrote:
Plus, I have a notion that the "interaction between ext3 and 3ware raid5" referenced in the previous episode, might just have something to do with ext3's ordered data writes, which can be turned off.
I just remounted an ext3 filesystem with '-o data=writeback' and attempted to run bonnie++ as I've been doing all along here. The system basically came to a halt. The first step in the benchmark creates a series of 1GB files. This hasn't take more than a couple of minutes on any other test. After 10 or 15 minutes with it only half way through the creation process I decided to abort the benchmark. And that's difficult because the system is now only semi-responsive.
'data=writeback' isn't the answer. Sorry.
I am mounting my RAID device with the data=writeback option without incident.
Cheers,