I was setting up Macrium Reflect on a laptop. I was planning on doing my backups over WiFi. I use WiFi 6 so it's quick enough to do the backups. I elected to perform a verification after the backup.
I ran my backup, and it failed on the verification saying that a block hash failed. I repeated this several times and every single time it failed, but always at a different point in the verification.
I was sure that I had a Reflect problem. Wrong!
As I test, I simply copied about 50GB of files from the laptop to the Windows system that I was baking up to simply using File Explorer. Then I ran checksums on all the files. Sure enough, one file showed a different checksum. The files look absolutely identical, with the exact same size, but clearly, they are different.
So, this falls into the category of a "silent failure". If I were simply copying files using File Explorer, I would have never been the wiser. It would have looked like everything was fine.
So, this just shows how important it is to have good quality backups. The irony in this whole thing was that merely the act of setting up my backups for the first time showed me that I have a major problem.
Well, tomorrow (okay, later today) will be interesting as I figure out where the problem is and whether I have bad data elsewhere.
I ran my backup, and it failed on the verification saying that a block hash failed. I repeated this several times and every single time it failed, but always at a different point in the verification.
I was sure that I had a Reflect problem. Wrong!
As I test, I simply copied about 50GB of files from the laptop to the Windows system that I was baking up to simply using File Explorer. Then I ran checksums on all the files. Sure enough, one file showed a different checksum. The files look absolutely identical, with the exact same size, but clearly, they are different.
So, this falls into the category of a "silent failure". If I were simply copying files using File Explorer, I would have never been the wiser. It would have looked like everything was fine.
So, this just shows how important it is to have good quality backups. The irony in this whole thing was that merely the act of setting up my backups for the first time showed me that I have a major problem.
Well, tomorrow (okay, later today) will be interesting as I figure out where the problem is and whether I have bad data elsewhere.
My Computers
System One System Two
-
- OS
- Win11 Pro 23H2
- Computer type
- PC/Desktop
- Manufacturer/Model
- Home Built
- CPU
- Intel i7-11700K
- Motherboard
- ASUS Prime Z590-A
- Memory
- 128GB Crucial Ballistix 3200MHz DRAM
- Graphics Card(s)
- No GPU - CPU graphics only (for now)
- Sound Card
- Realtek (on motherboard)
- Monitor(s) Displays
- HP Envy 32
- Screen Resolution
- 2560 x 1440
- Hard Drives
- 1 x 1TB NVMe Gen 4 x 4 SSD
1 x 2TB NVMe Gen 3 x 4 SSD
2 x 512GB 2.5" SSDs
2 x 8TB HD
- PSU
- Corsair HX850i
- Case
- Corsair iCue 5000X RGB
- Cooling
- Noctua NH-D15 chromax.black cooler + 10 case fans
- Keyboard
- CODE backlit mechanical keyboard
- Mouse
- Logitech MX Master 3
- Internet Speed
- 1Gb Up / 1 Gb Down
- Browser
- Edge
- Antivirus
- Windows Defender
- Other Info
- Additional options installed:
WiFi 6E PCIe adapter
ASUS ThunderboltEX 4 PCIe adapter
-
- Operating System
- Win11 Pro 23H2
- Computer type
- Laptop
- Manufacturer/Model
- Lenovo ThinkBook 13x Gen 2
- CPU
- Intel i7-1255U
- Memory
- 16 GB
- Graphics card(s)
- Intel Iris Xe Graphics
- Sound Card
- Realtek® ALC3306-CG codec
- Monitor(s) Displays
- 13.3-inch IPS Display
- Screen Resolution
- WQXGA (2560 x 1600)
- Hard Drives
- 2 TB 4 x 4 NVMe SSD
- PSU
- USB-C / Thunderbolt 4 Power / Charging
- Mouse
- Buttonless Glass Precision Touchpad
- Keyboard
- Backlit, spill resistant keyboard
- Internet Speed
- 1Gb Up / 1Gb Down
- Browser
- Edge
- Antivirus
- Windows Defender
- Other Info
- WiFi 6e / Bluetooth 5.1 / Facial Recognition / Fingerprint Sensor / ToF (Time of Flight) Human Presence Sensor