I checked out mdadm man page, read some pages on the web, and well, what bitmap chunk size should I go for considering these are WD Elements 2TB drives (what kind of technical information about these drives are relevant when considering a bitmap chunk size?) Ivan On Nov 5, 2013, at 12:04 PM, Adam Goryachev <mailinglists@xxxxxxxxxxxxxxxxxxxxxx> wrote: > Personally, I would also do: > mdadm --grow /dev/md0 --bitmap=internal > This means next time you have a similar issue, when you add the older > drive, it will only sync the small parts of the drive that are out of > date, instead of the entire drive. -- 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