SMA DB Backups - Random Failures

I have an SMA running version 10.1.99 with DB sizes of about 6 GB for base and 11 GB for incremental, and I'm doing offboard backup to a Windows 2016 file share. Both my SMA and Windows server are VMs, and our environment is pretty solid. I'm getting some full size backups, but some incrementals are getting cut off at 32,768 kb. There is plenty of space on the drive with the shared folder, and our network is pretty robust. I'm getting the network error NT_STATUS_INVALID_NETWORK_RESPONSE. Most people reporting that error apparently are unable to connect at all, whereas I'm connecting and getting cut off at the specific point in the file transfer.

Here is a log entry:

[2020-06-12 02:15:07 -0400] [offboard_backup] Offboard Backup Process Started.
[2020-06-12 02:15:07 -0400] [offboard_backup] Copying /kbackup/20200606_k1_base_10.1.99.tgz to Samba share
[2020-06-12 02:16:23 -0400] [offboard_backup] Samba server connection and login successful.
[2020-06-12 02:16:23 -0400] [offboard_backup] Copying /kbackup/20200606_k1_incr_10.1.99_20200612.tgz to Samba share
[2020-06-12 02:17:13 -0400] [offboard_backup] Samba Failed: NT_STATUS_INVALID_NETWORK_RESPONSE closing remote file \20200606_k1_incr_10.1.99_20200612.tgz
[2020-06-12 02:17:13 -0400] [offboard_backup] Failed to copy  /kbackup/20200606_k1_incr_10.1.99_20200612.tgz to Samba share... exiting!

Thanks for any ideas.

2 Comments   [ + ] Show comments
  • What is the hypervisor running the VM's?
    Are both VM's running on the same host and from the same data store? Could it be a bottleneck in IO - KevinG 11 months ago
  • Thanks, Kevin. Separate datastores. I can try putting them on the same host if they aren't right now, but I have iscsi connections to a Dell EQ cluster with extremely low latency and queue depth. Multi GB files get transferred pretty regularly between VMs on different hosts or from outside the VM environment without getting truncated, so right now I think the problem is on the SMA side. - tpr 11 months ago

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