Verify Time Machine Backup

[BobHinden]

I went to verify my time machine backup, but when I press the option key, "Verify Backup" is there, but it is greyed out. Is this a known problem on Big Sur? Any work around?

This is on a M1 MacMini with a Samsung T5 SSD.

Thanks.

 

[Weaselboy]

I just checked on Big Sur (Intel MBP) and it is greyed out for me also. I have encryption turned on for the TM disk. I wonder if that is the issue?

 

[ItWasNotMe]

I just checked on Big Sur (Intel MBP) and it is greyed out for me also. I have encryption turned on for the TM disk. I wonder if that is the issue?

Also on an M1, BS 11.2, backup disk is a WD Hard drive, not SSD - TM disk is not encrypted

Option is greyed out for me

 

[CoastalOR]

The manual Verify Backup is only available for Time Machine on a network disk.

Verify your backup disk on Mac

If you back up your Mac to a network disk, Time Machine periodically verifies that your backups are in good condition.

support.apple.com

 

[Apple_Robert]

Good thing I use a network disk.

Edited to add: CCC also verifies the backup each time whether it is on network or not.

 

[Weaselboy]

The manual Verify Backup is only available for Time Machine on a network disk.

Ah thanks... now that you mention it, I remember seeing that option back when I used a Time Capsule.

 

[BobHinden]

Update

I turned off time machine for the disk, rebooted so it wouldn't show up a time machine disk, ran Disk Utility and it failed again. No idea if it is a disk issue or an incompatibility with my M1 MacMini.

I may try erasing it and testing again. If that doesn't help, I will contact Samsung.

In the mean time, I got a WD "My Passport Ultra for Mac" disk for a backup disk. Time Machine is starting it's first backup on that now.

 

[MacorNothing]

Hello !
Time Machine made on Monday, 800Go avalaible.
Made now 870Go available, Strange ?

iMac late 2017 on SSD - Samsung X5, 5OO Go

 

[fivenotrump]

The manual Verify Backup is only available for Time Machine on a network disk.

Verify your backup disk on Mac

If you back up your Mac to a network disk, Time Machine periodically verifies that your backups are in good condition.

support.apple.com

only on a network HFS+ disk: not needed for APFS

 

[Apple_Robert]

Hello !
Time Machine made on Monday, 800Go avalaible.
Made now 870Go available, Strange ?

iMac late 2017 on SSD - Samsung X5, 5OO Go

It is possible that an older Time Machine snapshot was deleted, thus freeing up a little more space.

 

[MacorNothing]

It is possible that an older Time Machine snapshot was deleted, thus freeing up a little more space.

Thanks but this Time machine (LaCie) was buy the beginning of April 2021 ! so strange ?