Where did 600GB on my HD go?

[mstokas]

I still don't understand what he was trying to accomplish?

I was trying to limit the amount of free space so the erase free space option would take less time. When doing the multiple pass overs of 650 gb it took over a day.

 

[mstokas]

Hmmm…??? My small understanding is that diskutil should show all partitions and sizes when run and has done so for ages. Unless El Capitan changed some sort of "feature"???

http://commandlinemac.blogspot.ca/2008/12/using-diskutil.html

"Note that all partitions are shown through this command, including hidden partitions like the Recovery HD, the EFI partition, and partition map and scheme information. "
http://osxdaily.com/2009/12/01/list-all-mounted-drives-and-their-partitions-from-the-terminal/

BTW: was the listed apple HDD HUA722010CLA330 media drive an original or replacement as if it should matter. Just curious and if it's still under any warranty.





- Patrick
======

Replacement HD from apple, not under warranty any more.

 

[lclev]

No "diskutil list" does not show all partitions on the drive but Disk Arbitrator will.

Here is a screen shot of my Macbook - it has OS X 11.4 and a Windows 10 bootcamp install on it.



Lisa

 

[pigoo3]

I was trying to limit the amount of free space so the erase free space option would take less time. When doing the multiple pass overs of 650 gb it took over a day.

As I mentioned earlier in the thread. I'm guessing that the type of free space erase method you were using was a secure erase. Secure erasing does take a lot of time…especially if multiple passes are used…and if it is done on a large volume.

Unless you really really need to do a secure erase (most folks don't)…don't do a secure erase.

If this sounds acceptable. I would suggest reformatting the drive back into a single partition (other than the Recovery Partition). Then the HD storage space issue should be resolved.

- Nick

 

[chscag]

No "diskutil list" does not show all partitions on the drive but Disk Arbitrator will.

Nice one Lisa! Where did you find that little jewel? (I just downloaded it.)

 

[lclev]

Nice one Lisa! Where did you find that little jewel? (I just downloaded it.)

It's a forensic tool and I dabbled in that for a while - in Windows. So when I googled ideas that worked for macs that came up. I also didn't see the need to spring for Disk Warrior as I have no need for it - yet - but I wanted to see if I could find something close or similar.

It does a lot of other nifty things.

Lisa

 

[MacInWin]

Hmmm…??? My small understanding is that diskutil should show all partitions and sizes when run and has done so for ages. Unless El Capitan changed some sort of "feature"???

http://commandlinemac.blogspot.ca/2008/12/using-diskutil.html

"Note that all partitions are shown through this command, including hidden partitions like the Recovery HD, the EFI partition, and partition map and scheme information. "
http://osxdaily.com/2009/12/01/list-all-mounted-drives-and-their-partitions-from-the-terminal/

BTW: was the listed apple HDD HUA722010CLA330 media drive an original or replacement as if it should matter. Just curious and if it's still under any warranty.





- Patrick
======

DU still shows all partitions, but only one at a time. To see them, you click on the partition name, and if there are multiple partitions, you'll get an option of which partition to show in the circle. Unfortunately, this new display isn't as useful for diagnostics as the previous one, as I can't see any way to see which partition is "first" and therefore more manageable. In the old "stack" view, you could see which partition was on top, and if you deleted the partitions below it, could drag the partition into that freed space. Now you don't really know which is on top, so you don't know if you delete one if the other can be expanded or not.

 

[pm-r]

DU still shows all partitions, but only one at a time. To see them, you click on the partition name, and if there are multiple partitions, you'll get an option of which partition to show in the circle. Unfortunately, this new display isn't as useful for diagnostics as the previous one, as I can't see any way to see which partition is "first" and therefore more manageable. In the old "stack" view, you could see which partition was on top, and if you deleted the partitions below it, could drag the partition into that freed space. Now you don't really know which is on top, so you don't know if you delete one if the other can be expanded or not.

Thanks, and it sounds like yet another step backwards…

I wonder if there's some reasonable explanation for the change…???

 

[MacInWin]

Maybe they (Apple) don't want users mucking about with the partitions and drives?

 

[LexS]

Hello,

I have a 1 TB HD, recently I noticed that under the disk utility it is saying that I have only 404 GB of storage? What happened to the other 600 GB? I had previously partitioned the hard drive before an upgrade to el capitan. Could that portion have been lost? Any suggestions on how to recover this space?

Thanks,

Here is a screen grab of the disk utility showing the 404GB of space on my macintosh HD, but note I have a 1 TB HD.

View attachment 24241

Quite clear: the second partition is "lost" (i.e. unformatted). In DiskUtility partition/format the "lost partition" to GUID partition table, MacOS Extended (journaled) as the first partition. When you want only 1 partition, later with DiskUtility add the new second partition to the main partition.
LexS

 

[pm-r]

Quite clear: the second partition is "lost" (i.e. unformatted). In DiskUtility partition/format the "lost partition" to GUID partition table, MacOS Extended (journaled) as the first partition. When you want only 1 partition, later with DiskUtility add the new second partition to the main partition.
LexS

Maybe you could explain this a bit further when you have time as I'm having some trouble understanding what you're describing.




- Patrick
======

 

[LexS]

In the screenshot (post"1) : click the Partition tab, you will see the piece that is not partitioned, click it to select, format it as I said above. Apply.
You have now two partitions. make the "1 bigger by adding the new partition. Then apply.

 

[pm-r]

In the screenshot (post"1) : click the Partition tab, you will see the piece that is not partitioned, click it to select, format it as I said above. Apply.
You have now two partitions. make the "1 bigger by adding the new partition. Then apply.

OK, thanks.

 

[MacInWin]

I'm not sure that the first step, i.e., partitioning the open space, is necessary. If you pick the drive itself (not the partition) you should be able to expand the existing partition into the open space, unless it's taken up by something (which it should NOT be). But mucking about with partitions will erase things (everything, actually) so make backups first.

 

[Sawday]

Can't get my head around why the OP thought they needed to regularly secure erase (or even just erase) the free space. What did he think this would be achieving?

 

[LexS]

I'm not sure that the first step, i.e., partitioning the open space, is necessary. If you pick the drive itself (not the partition) you should be able to expand the existing partition into the open space, unless it's taken up by something (which it should NOT be). But mucking about with partitions will erase things (everything, actually) so make backups first.

Of course you must partition: it must be exact the same as the start perition otherwise you can not combine.

 

[LexS]

Can't get my head around why the OP thought they needed to regularly secure erase (or even just erase) the free space. What did he think this would be achieving?

I like the wisdom underneath your post ;D. and twice the same stone means...
Also I like your avatar: in the Netherlands they would say "een heer van stand" (Ollie B. Bommel)
Greets,
Lex