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By erasing it, you would break something, whether it’s an email you’re composing with the attachment in the email, an open preview of a file you were viewing, or a file transfer of the file you were initiating through your favorite instant messenger client, and your Mac prevents you from breaking things by keeping you from deleting the file until the app is finished with using it. What’s happening here is you’re trying to erase a file from your Mac’s filesystem that an app is still using. What’s going on?īasically what your Mac is telling you is that a file from your Trash is still open in one of your Mac’s own apps. These messages are entirely annoying because when I decide to empty my Trash, I’m doing it because I want to get rid of everything inside of it, not because I want to see error messages.īecause this is a widespread message among Mac users, it seemed like a good idea to discuss why you’re getting these messages, and to talk about possible solutions to the problem.
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I get messages multiple times per day where my Mac has an aneurysm and says “This operation can’t be completed because the item “” is in use.”
#SECURE EMPTY TRASH MAC OS X EL CAPITAN HOW TO#
In this piece, we’ll talk about why you’re getting these messages and how to get your Mac to free up the file so you can delete it safely. Set your Mac computer’s Energy Saver preferences to Never sleep until the 24 hours.Sometimes when emptying the Trash on your Mac, you may get error messages that tell you files you’re trying to delete are in use. When you’re looking to delete everything that’s in your Trash to free up some storage space, error messages are going to be the last thing you want to see. Leave the storage device powered on for 24 consecutive hours. The rebuilding may require several hours to complete. Note : Just because the message “Finished RAID operation on disk_” appears, this does not mean the RAID rebuild has concluded. Reminder: The RAID Unique ID was seen in Step 1 and was indicated as Figure B.ĭiskutil addtoRAID member disk2 53667811-3184-46D6-AA33-4A0D93D5F91AĪ message will indicate that the adding process has begun. Please note the IDENTIFIER disk number (Figure 3).ĭiskutil addtoRAID member (Figure 1) IDENTIFIER of new drive (Figure 2) RAID Unique ID (Figure 3) The new drive’s TYPE NAME will be blank (Figure 2). Physically insert the new drive into the available slot on the storage device.Ī message may appear, asking to initialize the drive. Physically remove the failed drive from the storage device. Repeat steps a-e if necessary to confirm which one is failed. Repeat the diskutil checkraid command in Terminal as explained above. Physically disconnect one of the two drives from the device.Į. Safely remove the RAID by dragging it to the trash can.Ĭ. If you are not sure which drive is faulty, follow this procedure:Ī. If the LED on the unit is red or blinking, that is most probably the problem drive. ĭiskutil appleraid remove 148AC6C0-6105-4246-978B-CC729CCEEF9E disk3ĭisk Utility will now remove the failed drive from the RAID.ĭiscover which of the two physical hard drives is the failed one. In Terminal, type the following commands:ĭiskutil appleraid remove ( Figure 1 ) UUID of the failed drive (Figure 2 ) Device Node (Figure 3). Step 2 - Remove the failed drive from the RAID 1 You will need this data in order to remove the failed drive from the RAID, as well to rebuild the RAID. Please note the Unique ID of the RAID (Figure B), the Device Node disk number (Figure C), and the UUID from the failed disk (Figure D) for later use. The Status for the disk may display Missing/Damaged or Failed. The Status for the RAID displays that it is Degraded. These steps will demonstrate how to identify which drive has failed from the array:įrom the Desktop, select Go from the top menu bar, then Utilities > Terminal. Please follow this procedure to check the RAID status and rebuild the RAID 1: When one drive in a RAID 1 fails, it may need to be replaced. Proceed only when your computer has started normally. IMPORTANT! Do not attempt the following while your Mac is in Recovery Mode. IMPORTANT! Before proceeding, please safely eject and then physically disconnect all external storage devices (external hard drives, SD cards, etc) from your Mac computer, except the device on which you want to create the RAID. This article provides instructions to rebuild a RAID 1 using the Mac OS Terminal.