Do not remove the jumper on old disks that have already been added to the array. If the drives are jumpered you are getting the same performance boost as using the new feture.
Not all drives (from other manufacturers) have that jumper though, so a need for a way to use the new drives natively was needed. Going forward, when you preclear new advanced format disks (like the EARS), you should plan to just use this new feature rather than bothering with the jumper.
OK, great. I actually don't know what I will do. I didnt't actually see the posting for the 7.1 beta before posting. I am still on 4.6 and thought that was it for the 4.x series as once thought. But I see there was a need for this support so it was added with a new release. He makes mention for those "you know who you are" to watch the forum to see how to convert from jumpered to not jumpered. Unfortuantely, I am one of them, I like things all the same. While it gains me nothing, I still want things uniform so I may have to convert if it is possible, so I will watch the forum.
As for the rest, I guess the new -A command will only work on 4.7 right? Also, he says to run for a few days before adding disk, so I may wait to add the disks once 4.7 is out of beta. Plus goign to "MBR: 4K-aligned", seems to be a one way decision. Am I right in thinking this obviously does not really harm any existing data, it is just for the future as new disks are added? This seems to be a big change, but needed as you stated. Or, do I just run all my WD with the jumper and not even look at all this stuff and think too much into it.
currently, I just use the command preclear_disk.sh -m
[email protected] -M 4 /dev/sdX (this is from memory, but I think that is it) Do the newer versions of preclear do things any different? The time stamp on my current preclear is 10/06/2009. Do the new versions run faster or anything? I know with this version it is usually like 20- 24 hours of a 2TB drive. I guess being over 2 years old I need to upgrade anyway.
