Re: ext4 features (checksums)

Avi Kivity
2006-07-04T06:09:30Z

Neil Brown wrote:
>
> To my mind, the only thing you should put between the filesystem and
> the raw devices is RAID (real-raid - not raid0 or linear).
>
I believe that implementing RAID in the filesystem has many benefits too:
- multiple RAID levels: store metadata in triple-mirror RAID 1, random
write intensive data in RAID 1, bulk data in RAID 5/6
- improved write throughput - since stripes can be variable size, any
large enough write fills a whole stripe

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.