![]() ![]() When it comes to backing up your Mac, you have a few different options. You should always make sure your data is backed up on your devices to an external drive so that you don’t lose anything in case of a malfunction. If you make a purchase through links from this website, we may get a small share of the sale from Amazon and other similar affiliate programs. This will allow Time Machine to function properly for several years.As an Amazon Associate we earn from qualifying purchases made on our website. Best practice is to use a disk that is at least twice as large as the total capacity of data currently stored on the mac-HD. Good practice is to use a disk with at least as much free space as the total volume of the mac-HD disk. Ensure the target or destination disk has enough free space to contain the Time Machine backup.Best practice, is to ensure the NAS’s firmware is up to date and prevent the device from entering sleep while Time Machine completes its initial backup. It is equally important to ensure the Ethernet pathway between the computer and the destination share is kept connected. Network Attached Storage (NAS) drives also have sleep timers and may or may not allow the disk to enter sleep mode while Time Machine is writing to a share. ![]() This can be re-enabled again after the initial backup successfully completes. Best practice, for the initial Time Machine backup, is to temporarily disable the drive’s sleep timer. ![]() Some advanced external hard drives, like our older My Passport and My Book drives, include a configurable sleep timer.Prevent the hard drive from entering sleep mode or becoming unavailable.Any interruption in an incremental backup will just be "caught up" with the next scheduled Time Machine backup. Each subsequent incremental backup would only be a gigabyte or so and would only run for a few minutes. The Energy Saver settings can be changed back to their factory default values when the Time Machine completes the initial backup. Closing the lid on a laptop computer will override all Energy Saver settings and shut power to the USB and Ethernet ports, Wi-Fi adapter, and force the computer and hard drives to sleep.Ĭonnect the power adapter to the computer while the initial Time Machine backup is running, to prevent the battery from draining and shutting down the computer. Laptop computer owners: It is important to keep the lid open. Best practice, use the power adapter (Laptop models) during the initial backup. Check the box next to: Enable Power Nap while plugged-in to a power adapter.Un-check the box next to: Put hard drives to sleep when possible or, Check the box next to: Prevent the hard drives from sleeping.Un-check the box next to: Put computer to sleep when possible or, Check the box next to: Prevent computer from sleeping automatically when the display is off.Please see: HT202824: Use the Energy Saver settings on your Mac for instructions on accessing the System Preferences to adjust Energy Saver settings on a macOS computer. Adjust the macOS System Preferences – Energy Saver settings prevent the computer from entering sleep, keep the hard drives awake, and/or allow Time Machine to use network resources when needed.Prevent the computer from entering sleep mode.The Time Machine backup, and its file is incomplete and unusable until Time Machine cleans up the cached working data and closes the file on the destination disk. It is important to understand, any interruption in the initial backup will cause Time Machine to start over. The initial Time Machine backup can be several hundred Gigabytes of data and can take several hours to complete. This includes system settings and program files, along with the user’s profile settings, installed programs, and saved documents. Time Machine backup takes a snapshot of the macOS system, at that point in time. IMPORTANT: For more information please also see: HT204157: If you can't back up or restore your Mac using Time Machine My Cloud OS 5: SMB Protocol was changed from the default: SMB2,SMB3 and NTLMv2.The Time Machine Backup Maximum Size is set to a value lower than what Time Machine requires.The Time Machine Backup Maximum Size is not set to the default of 100% for the 1st backup.The destination disk does not have enough free space to contain the Time Machine backup.The destination disk becomes unavailable.The computer entered sleep mode during the initial Time Machine backup.Ĭannot complete an initial and alerts with an error: This article explains why the initial Time Machine backup failed or could not complete.*ENDĪpple File Protocol (AFP) is no longer supported on My Cloud OS 5 firmware 5.19.197 and My Cloud Home firmware 7.16.0-217 and higher.įor more information, please refer to and. ![]()
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