Hello, Monday, March 10, 2008, 18:45:15, Stuart D. Gathman wrote: > o Use md raid1 mirroring with smaller (20-30G) pieces that need syncing. > Very important on systems where md driver can't remember its sync > status between reboots. I didn't have md failure on recent kernels... now the reboot while syncing is possible? On older kernels it just started from the beginning. But this approach has a performance penalty - from the md raid1 kernel sources it seems that it does try to optimize reads (choose from which of the mirrored drive to read block), but it does not work with multiple md devices on the same disks (each md has its own information about the current position of drive heads and doesn't know that the md is also "using" the same drives). -- bYE, Marki _______________________________________________ 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/
