Support Center

Incorrect Drive Volume Size

Incorrect Drive Volume Size

You may experience incorrect drive volume size while changing RAID modes between RAID 5, RAID 0 and JBOD. The total capacity of the RAID volume in the CalDigit Drive Utility is correct but not in Apple’s Disk Utility.

After configuring a new RAID or JBOD set, you may find that the drive capacity or volume capacity as incorrect in Apple Disk Utility and are unable to partition a new RAID or JBOD volume to the correct capacity (for example: T4 15 TB in RAID 5 becomes 5TB in Disk Utility). In this case, you can use the command line utility: diskutil, to clean up the ghost file system information from the previous partition, then use OS X Disk Utility to re-partition the new volume. Please follow the steps below.

1. Go to Terminal.
2. Login as root user. You will need to enable root user first. See the steps here: Enabling and using the “root” user in OS X
3. List down all the hard disks and volumes: diskutil list Then find the right IDENTIFIER for your T4 or T3. For example, it can be “disk2”
4. Type in the command: sudo diskutil eraseDisk JHFS+ volume name /dev/diskX

4-1. Where “volume name” is the name of the new T4 RAID5 or JBOD volume name.
4-2. /dev/diskX , where X is the identifier number you have found from step 3.
5. Once completed, you can go back to Disk Utility and check out the total capacity and re-partition the volume.

Additional Information: Enabling and using the “root” user in OS X

CalDigit Support is ready to assist you.
For an optimal experience please have your product name, serial number, and operating system on hand prior to contacting support

Have a quick question?
Stop by and give us a tweet @CalDigitSupport

Follow us on

Social Media

Follow us on

Social Media

Need some help?

Hours of Operation

Mon – Fri   9:00AM – 6:00PM

(PST, UTC/GMT –8)

Mon – Fri 8:30AM – 5:30PM  

(UTC/GMT 0)

Mon – Fri 9:00AM – 6:00PM

(UTC/GMT +9)

Mon – Fri 8:00AM – 5:00PM

(UTC/GMT +8)

CalDigit Support is ready to assist you.

For an optimal experience please have the following on hand prior to contacting support. 

Ready to chat?

Click the button to get started!

Need some help?

Send us an email! Our customer service representatives are patiently waiting!

+1 (714) 572 9889

 

Support@CalDigit.com

Mon – Fri   9:00AM – 6:00PM
(PST, UTC/GMT –8)

Due to the ongoing COVID-19 epidemic and California’s statewide “Stay at home” order, CalDigit’s Sales and Support teams are working from home to ensure the safety of our employees. We do not expect any slowdown in responding to customers but please contact us via email and online chat rather than phone calls during this time for a faster response to your enquiries. Orders placed directly from CalDigit online stores can still be processed immediately.

+44 (0) 1993 700 972

EUSupport@CalDigit.com

Mon – Fri 8:30AM – 5:30PM  
(UTC/GMT 0)

+81 (50) 3136 5168

Japan@CalDigit.com

Mon – Fri 9:00AM – 6:00PM
(UTC/GMT +9)

+886 (2) 2226 0966

Asia@CalDigit.com

Mon – Fri 8:00AM – 5:00PM
(UTC/GMT +8)

For an optimal experience please have your product name, serial number, and operating system on hand prior to contacting support.

Cookie Graphic

This website uses cookies to improve your user experience. By continuing to browse this website, you are agreeing to our use of cookies. We encourage you to review our Privacy Policy.