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View Full Version : [ubuntu] Proper partition alignment WS20EARS with gparted?



frostypepper
August 3rd, 2010, 02:46 AM
I have a 2Tib WD ears drive. I didn't realize initially that I had to format this drive in a certain way. Is there a easy way to do this and retain the data on the drive?

Everything I have found via searches all point to fresh installs. Even if I cant save the data is it possible to get simplified instructions for gparted or similar?

While Im doing this would it be in my best interest to go with a gpt file table too? If I do will I have to manually make a separate tiny partition for the gpt table via gparted or can the advanced install of Ubuntu minimal handle it?

Finally I have a solid state disk on module (acer ap-sdm002gbpans-b) thats around 2Gib. Would I need to align this drive as well?

I certainly apologize for all the questions. Its just that I have been mulling over these problems for awhile and I needed to purge the questions and get some answers. My project has become so stymied; I just want to get the most out of this hardware.

sandyd
August 3rd, 2010, 03:12 AM
no way you can format without losing data.
http://ubuntuforums.org/showthread.php?t=1456251&highlight=WD20EARS

also an entire thread here -> http://ubuntuforums.org/showthread.php?t=1528312&highlight=western+digital
about it

frostypepper
August 3rd, 2010, 04:00 PM
Is there at least a way to re-align without a format? The drives currently have a msdos (mbr) for the partition table, which if I am not mistaken is perfectly fine for a 2Tib drive.

frostypepper
August 9th, 2010, 06:45 PM
I have contacted Apacer about the SDM disk-on-module about alignment similar to a ssd. My reply was that they are still testing whether alignment is needed and what procedures are needed.

I did read somewhere that these things need to observe 128 byte sectors. Now if standard formating tools assume a 512 byte sector then things should be ok. 512/4=128 bytes, so these default sector formats will span four 128 bytes ones. This should in theory at least not degenerate read/write performance.

Hope it helps somebody!

kr651129
August 9th, 2010, 06:49 PM
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