Resizing Guarded IDT Devices

Devices configured as IDT-Capable can be resized using the system-provided resizing utilities. If you are using a file system on the GuardPoint, you can mount the file system after resizing the device and then grow the file system to the new size using the appropriate utility such as xfs_growfs or resize2fs.

Warning

Do not shrink IDT-Capable GuardPoints. Due to relocation of user data from the CTE Private Region, if you shrink the device, you may corrupt data on the device.

1. Stop applications from accessing the IDT-Capable GuardPoint.

   • Unmount the file system if the device is mounted.

   • Disable the IDT-Capable GuardPoint if using Auto Guard or on the host with the secfsd unguard <device-name> command if using Manual Guard.

2. Use the native disk management tools to resize the device.

3. After resizing the device, check the size of the device with the fdisk –l or similar command. Note that you cannot use the voradmin idt status command to verify the new size of the device at this point because the size information is not updated in CTE until the IDT-Capable GuardPoint is re-enabled.

4. If the reported size does not match what you expect, you may need to rescan your storage devices using the command appropriate for the device's connection type.

5. Once the expected size is achieved, enable the IDT-Capable GuardPoint and restart your applications.