Messages in this thread | | | Date | Thu, 29 Dec 2005 08:29:35 -0800 (PST) | From | Kenny Simpson <> | Subject | RAID controller safety |
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Hello, I am trying to determine which drivers and what hardware can be used to give reliable fsync behavior. I see many drivers with FIXME or TODO comments which make me nervous. I see the sd driver supports the direct SYNCHRONIZE_CACHE, but I'me having a hard time tracing through how this translates to raid controllers and their drivers. Specificly, I am looking at the Adaptec RAID controllers and their i2o drivers. I am told the kernel's i2o driver lacks a strong guarantee on fsync, and so far am unable to determine if the dpt_i2o driver also falls short in this reguard.
I don't mean to start a 'drives lie - disable all caching, buy FC drives' flame war. I know drives can lie, but I'd like to know if the drivers are lying too.
thanks, -Kenny
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