I've got a couple of older Windows 2016 servers that run even older virtual machines, and I typically back them up to USB drives once a month in addition to our regular cloud backups. However, this morning, I encountered a problem where I can't use any external USB drives on both servers. The drives show up, but when I try to access them, I receive an error in the Event Viewer: 'Filter Manager failed to attach to volume 'DeviceHarddiskVolume23'. This volume will be unavailable for filtering until a reboot. The final status was 0xC0000022.' I already tried rebooting the servers, but that didn't help, and I haven't found much information about this specific error online. Any assistance would be appreciated!
3 Answers
It sounds like you might be running out of drive letters since you're seeing 'Volume 23'. Check how the USB drive looks in Disk Management; maybe you can assign it a new drive letter or a mount point. Also, have you tried disabling Volume Shadow Copy before connecting the drive? It might also help to check if any drivers were updated since the last time everything worked fine.
I've been hitting a similar wall with my external drives showing access issues or failing to mount at all, even though they work perfectly elsewhere. It's frustrating trying to resolve this to get local backups back on track. Have you considered upgrading to a newer server version? That might clear up some of these bugs!
Do the external drives work on other devices? If they are functioning well on other systems, then they might just be having trouble communicating with these two servers.
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