On Thu, Apr 02, 2015 at 05:49:04PM +0200, Petr Bena wrote: > Hey, > > I figured out that for some reason on both ubuntu and debian, SSD mode > seems to be turned on even on HDD's (hard disk drives - eg. those with > rotating disk). I figured out now, but it's been like this for at > least a year or more and I didn't really had any problems with this. > > Is it OK to have SSD mode enabled on HDDs?
Yeah, it's safe. It will slightly change the behaviour of allocator and triggers some actions earlier (that are otherwise offloaded to other threads). There's one case where it might make a difference: the metadata defragmentaion is skipped if SSD is enabled. I'm going to send a patch that'll make the behaviour consistent. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
