> I didn't realise that you wanted to look at the members of the array while > the array was active!! That is a bit harder. But not impossible. Well, let's say that would be optimal, but even off-line could be OK. BTW, what does it mean "off-line"? Does it mean that /dev/mdX exists, but it is not used (un-mounted), or it is just read-only, or it should *not* exists and only the componing HDDs are available? > If you write a couple of numbers to 'suspend_lo' and 'suspend_hi' in sysfs, > then writes to blocks between those two array addresses will be blocked. > So you could suspend a region, look at the blocks, then un-suspend. Oh, thanks, I will consider the option. bye, -- piergiorgio -- 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