On Sunday July 27, tmb@xxxxxxxxxxxx wrote: > > as for --bitmap, can it be added to an existing array ? Yes. > > What is the better choice, bitmap=internal or bitmap=<some_file> ? Internal is easier. The command is mdadm --grow /dev/mdXXX --bitmap=internal This could have a negative impact on performance. The degree depends a lot on your workload. If you notice a reduction in write speed that is not acceptable, and if removing the bitmap (mdadm --grow /dev/mdXXX --bitmap=none) fixes the problem, then we can try to find an alternate solution. > > I'd hate to have to recreate the array, as I have about 1.2GB of data on > it... There is no need for that. NeilBrown -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
