indeed, a customer is doing 2TB of daily backups on a zfs filesystem the throughput doesn't go above 400MB/s, knowing that at raw speed, the throughput goes up to 800MB/s, the gap is quite wide
also, sequential IO is a very common in real life..unfortunately zfs is not performing well still sd On 2/27/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> it seems there isn't an algorithm in ZFS that detects sequential write > in traditional fs such as ufs, one would trigger directio. There is no directio for ZFS. Are you encountering a situation in which you believe directio support would improve performance? If so, please explain. -j
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