Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
Highlighted
Incremental robocopy to Netapp detects all existing files as changed or modified
2018-10-09
03:48 AM
- Bookmark
- Permalink
- Email to a Friend
- Report Inappropriate Content
Hi
We are migrating around 30 TB data from windows based file server to Netapp CIFS share by using robocopy command with /MIR switch.
After completing the baseline copy we are experiencing issues with incremental copy to Net app. Incremental robocopy to Netapp detects all existing files as changed or modified.
When i try the same command from windows as a source and another windows share as a destination, it copies only files those are changed or modified. It looks like some issue with Netapp.
Robocopy command I am using
robocopy <Windows Source> <Netapp Destination> /mir /copyall /ZB /w:1 /r:1 /log:\Robocopy-Logs\test.txt /TEE
robocopy <Windows Source> <Windows Destination> /mir /copyall /ZB /w:1 /r:1 /log:\Robocopy-Logs\test.txt /TEE
Did anyone experience same issue ?
Thanks
Bibin
5 REPLIES 5
Re: Incremental robocopy to Netapp detects all existing files as changed or modified
2018-10-09
05:11 AM
- Bookmark
- Permalink
- Email to a Friend
- Report Inappropriate Content
What vesion are you using on Ontap. We migrated 100s of TB's using robocopy and never had an issue.
You're flags look good, can you post a small portion of the log
Re: Incremental robocopy to Netapp detects all existing files as changed or modified
2018-10-09
05:37 AM
- Bookmark
- Permalink
- Email to a Friend
- Report Inappropriate Content
Thank you so much for your quick response
I am using NetApp Release 9.3P4
I found this workworkaround from Netapp community but we dont have Windows 2008 server in production.
https://community.netapp.com/t5/Data-ONTAP-Discussions/Fileserver-Migration-with-robocopy/td-p/118615
I have attached the snap shot copy of the logs from Windows to Windows & Windows to Netapp copy
Thanks
Bibin
Re: Incremental robocopy to Netapp detects all existing files as changed or modified
2018-10-09
06:02 AM
- Bookmark
- Permalink
- Email to a Friend
- Report Inappropriate Content
This solution may fix the issue but not sure it creates any other issues.
Re: Incremental robocopy to Netapp detects all existing files as changed or modified
2018-10-11
03:51 AM
- Bookmark
- Permalink
- Email to a Friend
- Report Inappropriate Content
It is a bug with Netapp --- Bug ID 1105968
https://mysupport.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=1105968
also noticed that
Incremental copy detects all existing files as changed or modified but it took less time to complete the second copy process. May be it is updating only access control list (ACL).
Re: Incremental robocopy to Netapp detects all existing files as changed or modified
2018-10-11
04:18 AM
- Bookmark
- Permalink
- Email to a Friend
- Report Inappropriate Content
Thanks for th e information, we are going to try to reproduce in our lab