Greeting LVM developers and users, I've been using the LVM mirror on several LVs and for some time now, using a core log. I'm tired of the resource intensive initialization on each boot, and I'm considering using a flash device as the third disk for the mirror's log. My question is thus: are there some write operations happening onto the log while there is no activity on the mirror's files? Is there some kind of periodic background thread checking for the consistency of the mirror and writing the status to the log, or is it safe to use a flash disk for low activity mirrors? >From what I understood, a bit is used on the log for each region (512k-default) on the mirror. Does It means that if a 100M file is written on the mirror, the log will be written 200 times on the same block? Or is there a queue that holds log write operations and syncs them to the log disk periodically to prevent that? That would be nice, and even nicer if it was adjustable. Thanks, Vincent _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
