> If dm supported barriers, this wouldn't be an issue. Personally, I "If the dm people applied the patches to support barriers" I believe is the correct description - Andi ? dm and md want fixing and even in the md case it isn't hard to do right. > > or disabling write cache (but, as Alan Cox said, this > > shortens the lifespan of the disk). > > Huh? I've never heard an assertion that disabling the write cache (I > assume you mean using write-through caching as opposed to write-back > caching), shortens the lifespan of disk drives. Aggressive battery Thats what I was told by a disk vendor - simply because the drive makes a lot more mechanical movements and writes. > your noticing it, you can avoid running fsck at boot time. It's > really more about shorting the boot time after a crash more than > anything else. That depends enormously on your environment. In a secure environment full data journalling is practically essential to avoid the tiny risk of bits of important data turning up in another users file. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
