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How to format WD RAID drive as non journaled
Hi all,
I’m trying to set up my WD MyBook Studio II drive as a RAID 0, but I don’t think the WD RAID manager app will let me reformat as HSF+ non-journaled, can’t do it in Apple Disk Utility either.
Since I believe this would be the best option speedwise, and to avoid dropped frames etc. anyone knows how to achieve this anyway?Besides this, is there a way to set the RAID block size, and what size would be advisable?
thanks, Vincent
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15 Replies
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You can’t do it in Disk Utility? Here’s a link from the WD website with instructions how to format a WD drive.
https://wdc.custhelp.com/app/answers/detail/a_id/3865/c/130/p/228,260,230
Cody Walters
Mac Pro 2.26GHz 8 Core Xeon
16 GB 1066 MHz DDR3
Final Cut Studio 3
Adobe CS5 Master Suite
Panasonic HVX-200
Canon 7D -
Formatting the drive is the last step in the process, so you create the RAID array first, then once the array is up – you format it like you would normally with whatever file system you want 🙂
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Best to leave it journaled. Seriously.
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Hi Cody, thanks for the quick response.
I followed the instructions, (except of course I selected the non journaled option) and managed to reformat the drives as one volume, but since in Disk Utility ‘Partition’ is a separate section from ‘RAID’ how can I be sure this actually will function as a striped RAID set? also this way I cannot set the RAID block size.
I tried another way: first I made two partitions, then switched over to the RAID tab dragged both volumes into the list but I got an error message after clicking the ‘create’ button.
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Hi Jeremy,
OK, why do you think I’m better off leaving it journaled?
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Sounds like your second attempt was close. Make sure that under the RAID tab you have your format set to Mac OS Extended. RAID type at striped. What is your error message saying? Maybe Jeremy has a point by keeping it at journaled.
Cody Walters
Mac Pro 2.26GHz 8 Core Xeon
16 GB 1066 MHz DDR3
Final Cut Studio 3
Adobe CS5 Master Suite
Panasonic HVX-200
Canon 7D -
Why do you think it’s better with it off?
Journaling helps to recover from unexpected crashes, power outages and kernel panics. It is a misconception to have it off, akrough you will read all up and down this forum that having it off is best. A journal is a good thing and a slight insurance policy in your hard drive data integrity. Why not use it?
Many raid manufacturers recommend journaling. That’s good enough reason for me.
Jeremy
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Better get a good backup plan. Seen a lot of mybooks crash. Raid 0 crash is data gone
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This is the error message:
Creating RAID set failed with the error:
Invalid request
I was already a bit suspicious about what DU would do, I just don’t count on it to create two partitions that exactly match each of the disks, since it starts off with interpreting both disks as one volume in the first place. (hope that makes any sense…;-)
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am i reading your post correctly? ….you have ONE drive which you have partitioned and then you are trying to Raid the two partitions together?
As far as I am aware that should not work.
The point of a raid is that it uses multiple drive read/write heads and discs to increase the speed at which data is written.
Raiding partitions on a single drive will have the opposite effect because the one read/write head will be trying to simultaneously write to two different partitions.My apologies if i have misunderstood your post.
I’m with Jeremy – leave the journalling on.adam
Adam Taylor
Video Editor/Audio Mixer/ Compositor/Motion GFX/Barista
Character Options Ltd
Oldham, UKhttp://www.sculptedbliss.co.uk
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