On Mon, Feb 23, 2009 at 4:44 AM, Steven Pratt <[email protected]> wrote: > Well this is not really a problem with enterprise class SSD drives. They > almost all use super capacitors to be able to have enough power to flush the > dram cache to the nand chips without the need for any external battery > backup.
That's excellent, but until consumer-level drives have the same feature, the fact remains that consumer SSDs are a net loss in reliability compared to consumer rotating disks, where by their marketing material they should be a gain. That's an issue with SSDs in general and certainly no fault of btrfs, I'm just curious if there's anything that can be done in a filesystem to minimise the damage of a lost eraseblock. In fact, will metadata mirroring solve this for us already, or does that still not handle failures in some "critical" blocks at the root of a filesystem? -- Dmitri Nikulin Centre for Synchrotron Science Monash University Victoria 3800, Australia -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
