Discussions related to exporting backups to tape and backing up directly to tape.
Post Reply
aich365
Service Provider
Posts: 296
Liked: 23 times
Joined: Aug 10, 2016 11:10 am
Full Name: Clive Harris
Contact:

Slow file backups to tape using SMB

Post by aich365 »

Case # 03105453

Tape jobs were running at 40MB/s instead of the usual 100+MB/s

SMB signing was turned on.
I have disabled this and jobs have resumed their normal speeds.
This signing could be set in 2 places - Group Policy or the registry
Group Policy (preferred method)
Computer Configuration, Policies, Windows Settings,Local Policies, Security Options,Microsoft network client: Digitally sign communications (if server agrees)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters
EnableSecuritySignature (1)
RequireSecuritySignature (0)

It can be viewed in Powershell by running
Get-SmbClientConfiguration
Look out for
EnableSecuritySignature : True
RequireSecuritySignature : False

As long as RequireSecuritySignature is set to false (0) then it is turned off.
Dima P.
Product Manager
Posts: 14726
Liked: 1706 times
Joined: Feb 04, 2013 2:07 pm
Full Name: Dmitry Popov
Location: Prague
Contact:

Re: Slow file backups to tape using SMB

Post by Dima P. »

Hello Clive.

Please keep working with our support team and let us know if you need any further assistance. Meanwhile, I'll ask QA team to review your case. Cheers!
aich365
Service Provider
Posts: 296
Liked: 23 times
Joined: Aug 10, 2016 11:10 am
Full Name: Clive Harris
Contact:

Re: Slow file backups to tape using SMB

Post by aich365 » 1 person likes this post

Hi Dimitry

The service desk were very helpful but in the end it was tracked down by Synology.
I only pasted this info as an FYI in case someone has a similar problem.

Thanks

Clive
Dima P.
Product Manager
Posts: 14726
Liked: 1706 times
Joined: Feb 04, 2013 2:07 pm
Full Name: Dmitry Popov
Location: Prague
Contact:

Re: Slow file backups to tape using SMB

Post by Dima P. »

Clive,

Glad you nailed it and thank you for sharing the update. Cheers!
Post Reply

Who is online

Users browsing this forum: No registered users and 21 guests