Synology SHR & Spinrite

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radavi

New member
Mar 21, 2025
2
0
Hi,

I am someone who does not have all his Nerd badges, only a few so I am here with a pretty basic question I guess. I have a 2 bay synology using SHR. How to best use spinrite on this?
My guess is....turn of the synology. Remove one disk, and somehow run spinrite on it. Only turn the Synology on after Spinrite is complete and have the harddisk in the synology again.
 
Yes, that sounds like a good plan. Make sure to run a Scrub after putting the drive back.

While you're poking around in the settings, I recommend the following as well. I work for a small MSP, and I have been configuring a bunch of Synology NASes lately :)
  • Use a long random password for your admin account.
  • Enable 2FA.
  • Don't map network drives with any admin accounts. Create separate non-admin accounts for that.
  • Don't directly expose your NAS to the internet. If you need remote access, use a VPN.
  • Configure notifications. If you sign up for a free Synology account, you can use that as the sender. Create a new Rule, pick the events you want to receive, then apply the rule to your sender.
  • Install Snapshot Replication, then set up Immutable Snapshots. Make sure to never let the pool get 100% full!
  • Enable automatic Scrubbing. I usually go with monthly and only allow it to run on weekends.
  • Set your timezone.
  • Install a battery backup.
  • Back up your NAS. Several built-in ways are: Hyper Backup, Active Backup for Business Agent (DSM), and Snapshot Replication.
  • Back up your computers with Active Backup for Business. It gives you both a full image, and file-level restore. It uses VSS on Windows, so subsequent backups are usually pretty fast.
    • Create a new basic user. Do not give it any permissions.
    • Create a new Shared Folder. Enable the options to hide it. Disable the Recycle Bin. Do not enable encryption or WriteOnce. Enable data checksum. Do not enable compression.
    • Edit the default templates, or create new ones. Pick the shared folder you created as the Storage, then enable encryption and compression. Enable Retention (I usually go with 90 days). Enable transfer encryption and compression.
    • Delegate permissions to the user you created. I usually only enable "Back up". For restores I use an admin account.
    • Install the agent on your computers. This can be deployed with silent parameters if you need to install it on many computers.
    • I recommend against using the File Server task type. It tends to create a mess. One NAS I manage has so many files I can't delete all of the old backups. We are going to replace the NAS with a newer model.
    • If you delete tasks, do not delete the folder from File Station! Active Backup should eventually delete the folder itself. Doing it from File Station can break Hyper Backup.
 
Thank you for the tips I will look into it later but can already say that with only 2 drives datascrubbing is not an option.
 
Which model do you have, and which version of DSM are you running? I have multiple DS723+ running DSM 7.2.2U3 that are able to scrub their 2 drive SHR pools.
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Last edited:
2 drive SHR pools
https://kb.synology.com/en-nz/DSM/help/DSM/StorageManager/storage_pool_data_scrubbing?version=7 This page says
Before You Start

- Data scrubbing is only supported on Btrfs volumes or storage pools of the following RAID types: SHR (consisting of three or more drives), RAID 5, RAID 6, or RAID F1.
- If the option data checksum for advanced data integrity is not enabled for a shared folder (at Control Panel > Shared Folder > Edit > Advanced), data scrubbing will not be able to check and repair the data in the folder because of a lack of checksums.
- Scheduled data scrubbing will be stopped if your Synology NAS was shut down improperly during data writing, but will resume automatically once your Synology NAS is powered on again.
 
Weird. I guess I need to look more closely and see if it's just skipping the scrub and marking it complete. Hopefully the documentation is just wrong 🤞