Hi Efim and All who helped Quick update on this : it appeared that some export policy rule (i.e." -superuser sys" ) had not been properly set on our Netapp, thus refraining TSM client to reach some files. Once this corrected, I was able to get successful snapshot backups done. @Efim : thanks for your advice, I'll take it in consideration ! Just have to discuss with our storage team what exactly they are expecting from me ;-)
Cheers. Arnaud -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Efim Sent: Wednesday, September 19, 2018 6:39 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: Netapp snapdiff issues having TSM client on a Linux machine, making use of NFS mounts Arnaud, Can you explain why you are copying the .snapshot folder during incremental filesystem backup with snapdiff? It contains snapshots created by netapp and SP for this FS. I believe that it should be excluded from copying in your backup job. Efim > 19 сент. 2018 г., в 18:28, PAC Brion Arnaud <arnaud.br...@panalpina.com> > написал(а): > > Hi Robert, > > Thanks a lot for appreciated feedback, unfortunately even when using TSM own > snapshots the problem still exists : > > root@xxxxxx:~ # dsmc i /Airwarder -snapdiff -diffsnapshot=create > -snapdiffhttps -optfile=$OPTPATH >/tmp/snapshot_Airwarder.log > > root@ xxxxxx:~ # more /tmp/snapshot_Airwarder.log > IBM Spectrum Protect > Command Line Backup-Archive Client Interface > Client Version 8, Release 1, Level 4.0 > Client date/time: 09/19/2018 17:17:41 > (c) Copyright by IBM Corporation and other(s) 1990, 2017. All Rights > Reserved. > > Node Name: NETAPP_CH1_NFS > Session established with server xxxxxx: Linux/ppc64le > Server Version 8, Release 1, Level 4.000 > Server date/time: 09/19/2018 17:17:42 Last access: 09/18/2018 12:12:17 > > > Incremental by snapshot difference of volume '/Airwarder' > > Connected to NetApp Storage Virtual Machine > Management Filer Host/IP Address : xxxxxx > Filer Version Information : NetApp Release 9.3P3: Wed Apr 04 > 13:07:06 > UTC 2018 > Storage VM Name : ch1ns100 > Storage VM Host/IP Address : xxxxxx > Storage VM Volume Style : Flex > Login User : tsm-backup-user > Transport : HTTPS > > Performing a Full Incremental Backup of volume '/Airwarder' > Creating Base Snapshot. > Using Base Snapshot 'TSM_CH135BA2689781857_AIRWARDER' with timestamp > 09/19/2018 > 17:17:43 > ANS4007E Error processing > '/Airwarder/.snapshot/TSM_CH135BA2689781857_AIRWARDER/ > acrimport_ref/ch': access to the object is denied > ANS4007E Error processing > '/Airwarder/.snapshot/TSM_CH135BA2689781857_AIRWARDER/ > acrimport_test/ch': access to the object is denied > ANS1898I ***** Processed 500 files ***** > ANS4007E Error processing > '/Airwarder/.snapshot/TSM_CH135BA2689781857_AIRWARDER/ > > I'm lost here ... > > Cheers. > > Arnaud > > ******************************************************************************************************************************** > Backup and Recovery Systems Administrator > Panalpina Management Ltd., Basle, Switzerland, > CIT Department Viadukstrasse 42, P.O. Box 4002 Basel/CH > Phone: +41 (61) 226 11 11, FAX: +41 (61) 226 17 01 > Direct: +41 (61) 226 19 78 > e-mail: arnaud.br...@panalpina.com > This electronic message transmission contains information from Panalpina and > is confidential or privileged. > This information is intended only for the person (s) named above. If you are > not the intended recipient, any disclosure, copying, distribution or use or > any other action based on the contents of this > information is strictly prohibited. > > If you receive this electronic transmission in error, please notify the > sender by e-mail, telephone or fax at the numbers listed above. Thank you. > ******************************************************************************************************************************** > www.panalpina.com > > > > -----Original Message----- > From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of > Robert Talda > Sent: Tuesday, September 18, 2018 10:48 PM > To: ADSM-L@VM.MARIST.EDU > Subject: Re: Netapp snapdiff issues having TSM client on a Linux machine, > making use of NFS mounts > > Brion: > Here at Cornell, we have a TSM client on a Linux system backing up NFS > shares via NFS mounts and snapdiff differentials - and have been doing so for > years. > > First, the gory details: > - For TSM > TSM Client Version 7, Release 1, Level 6.0 (*red faced, thought I had > upgraded to SP 8.1.2.0 months ago*) > Running on CentOS Linux release 7.5.1804 (kernel 3.10.0-862.2.3.el7.x86_64) > Accessing TSM Server for Linux Version 7, Release 1, Level 7.200 > - For NetApp > Filer Version Information : NetApp Release 9.3P6 > > We aren’t seeing your issue, and I suspect I know why. We are telling the > TSM client to create its own snapshots - and not use the snapshots being > created hourly (or daily or weekly even) by the team managing the Netapp - > said snapshots being equivalent to the ones you are trying to take advantage > of in your backups. > > That is, the relevant part of the daily backup schedule looks like: > Schedule Name: DAILY.INCR.NFS.SNAPDIFF > Description: Daily SnapDiff Incremental > Action: Incremental > Subaction: > Options: -snapdiff -diffsnapshot=create -snapdiffhttps > > > During a backup, then, the following type of information is written to the > dsmsched.log: > 09/13/2018 00:38:08 Incremental by snapshot difference of volume > '/nas-backup/vol/cit-pea1-test' > 09/13/2018 00:38:10 ANS2328I Using Snapshot Differential Change Log. > 09/13/2018 00:38:10 > Connected to NetApp Storage Virtual Machine > Management Filer Host/IP Address : ccc-cdot01.cit.cornell.edu > Filer Version Information : NetApp Release 9.3P6: Thu Jun 14 > 20:21:25 UTC 2018 > Storage VM Name : cit-sfshared05 > Storage VM Host/IP Address : cit-sfshared05-backup.files.cornell.edu > Storage VM Volume Style : Flex > Login User : tsmbackup > Transport : HTTPS > > 09/13/2018 00:38:10 Performing a Snapshot Differential Backup of volume > '/nas-backup/vol/cit-pea1-test' > 09/13/2018 00:38:10 Creating Diff Snapshot. > 09/13/2018 00:38:10 Using Base Snapshot > 'TSM_SANT5B9759FC1AB6_CIT_PEA1_TEST_VOL' with timestamp 09/11/2018 06:00:28 > 09/13/2018 00:38:10 Using Diff Snapshot > 'TSM_SANT5B99E9B24F814_CIT_PEA1_TEST_VOL' with timestamp 09/13/2018 04:38:10 > > Then, on the next backup (48 hours later thanks to a large amount of data to > backup on 9/13), the Diff Snapshot becomes the base: > 09/15/2018 01:29:22 ANS2328I Using Snapshot Differential Change Log. > 09/15/2018 01:29:22 > Connected to NetApp Storage Virtual Machine > Management Filer Host/IP Address : ccc-cdot01.cit.cornell.edu > Filer Version Information : NetApp Release 9.3P6: Thu Jun 14 > 20:21:25 UTC 2018 > Storage VM Name : cit-sfshared05 > Storage VM Host/IP Address : cit-sfshared05-backup.files.cornell.edu > Storage VM Volume Style : Flex > Login User : tsmbackup > Transport : HTTPS > > 09/15/2018 01:29:22 Performing a Snapshot Differential Backup of volume > '/nas-backup/vol/cit-pea1-test' > 09/15/2018 01:29:22 Creating Diff Snapshot. > 09/15/2018 01:29:22 Using Base Snapshot > 'TSM_SANT5B99E9B24F814_CIT_PEA1_TEST_VOL' with timestamp 09/13/2018 04:38:10 > 09/15/2018 01:29:22 Using Diff Snapshot > 'TSM_SANT5B9C98B1A15B2_CIT_PEA1_TEST_VOL' with timestamp 09/15/2018 05:29:21 > > I think that consistency is what is missing in your approach - I suspect that > there are intervening snapshots with information about files that have been > deleted or changed that are not part of what the TSM client is seeing. > > I will add that our NetApp team is very happy with this approach. The TSM > client has been very efficient in its management of the snapshots, and in > those rare cases when it doesn’t, the snapshots are easy to identify and > clean up. > > FWIW, > Bob > > > Robert Talda > EZ-Backup Systems Engineer > Cornell University > +1 607-255-8280 > r...@cornell.edu > > >> On Sep 18, 2018, at 8:35 AM, PAC Brion Arnaud <arnaud.br...@panalpina.com> >> wrote: >> >> Hi Tommaso, >> >> The backup command I'm using (dsmc i /Airwarder -snapdiff -snapdiffhttps >> -diffsnapshotname="daily.*" -diffsnapshot=latest -useexistingbase >> -optfile=dsm_netapp.opt) includes the "useexistingbase" statement. >> Based on my understanding of the documentation, this means that the S.P. >> client will not trigger the creation of a new snapshot on the Netapp device, >> but instead, make use of a snapshot that had been created previously by some >> internal mechanism of the Netapp. >> Therefore, it seems very unlikely that any process still has a grip on any >> of the files being part of this snapshot ... >> My humble opinion only of course, I'm waiting on others fellow members of >> this list feedback ! >> >> In addition to this, I would like to avoid the use of any exclude statement >> during the backup : I doubt that any of my customers would be very happy to >> hear that I'm not able to restore some of his precious files because the >> Spectrum Protect client had limitations ... Such issues never aroused with >> NDMP-based backups ! >> >> Cheers. >> >> Arnaud >> >> >> -----Original Message----- >> From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of >> Tommaso Bollini >> Sent: Tuesday, September 18, 2018 12:29 PM >> To: ADSM-L@VM.MARIST.EDU >> Subject: R: [ADSM-L] Netapp snapdiff issues having TSM client on a Linux >> machine, making use of NFS mounts >> >> Hello Arnaud, maybe it would be: The NetApp snapshot indicates which files >> are modified on the LUN (for which their backup is triggered); but the >> Backup-Archive client cannot "take" them because they are locked by the >> application. >> Perhaps you can solve by inserting the appropiate rules in incl.excl file to >> skip them. >> >> >> -----Messaggio originale----- >> Da: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] Per conto di PAC >> Brion Arnaud >> Inviato: martedì 18 settembre 2018 12:21 >> A: ADSM-L@VM.MARIST.EDU >> Oggetto: [ADSM-L] Netapp snapdiff issues having TSM client on a Linux >> machine, making use of NFS mounts >> >> Hi All, >> >> Following to IBM's decision to withdraw the web GUI in the latest versions >> of their clients (thus making NDMP hardly usable), as well as to the renewal >> of our NAS infrastructure (now using Netapp), I'm trying to implement netapp >> snapdiffs in our shop. >> >> So far we succeeded in defining necessary user and roles on the Netapp, as >> well as to setup the TSM client in order to interact with our filer, but I'm >> now facing an issue where some files cannot be backed up, apparently due to >> access rights. >> >> Here an extract of our backup log : >> >> IBM Spectrum Protect >> Command Line Backup-Archive Client Interface >> Client Version 8, Release 1, Level 4.0 >> Client date/time: 09/18/2018 10:26:28 >> (c) Copyright by IBM Corporation and other(s) 1990, 2017. All Rights >> Reserved. >> >> Node Name: NETAPP_CH1_NFS >> Session established with server XXXXXXX: Linux/ppc64le >> Server Version 8, Release 1, Level 4.000 >> Server date/time: 09/18/2018 10:26:28 Last access: 09/18/2018 10:00:37 >> >> >> Incremental by snapshot difference of volume '/Airwarder' >> >> Connected to NetApp Storage Virtual Machine >> Management Filer Host/IP Address : XXXXXXXX >> Filer Version Information : NetApp Release 9.3P3: Wed Apr 04 >> 13:07:06 UTC 2018 >> Storage VM Name : xxxxxxx >> Storage VM Host/IP Address : XXXXXX >> Storage VM Volume Style : Flex >> Login User : tsm-backup-user >> Transport : HTTPS >> >> Performing a Full Incremental Backup of volume '/Airwarder' >> Using Base Snapshot >> 'vserverdr.0.7b5a59c4-656c-11e8-bb80-00a098d614c2.2018-09-18_102500' with >> timestamp 09/18/2018 10:25:02 ANS4007E Error processing >> '/Airwarder/.snapshot/vserverdr.0.7b5a59c4-656c-11e8-bb80-00a098d614c2.2018-09-18_102500/acrimport_ref/ch': >> access to the object is denied ANS4007E Error processing >> '/Airwarder/.snapshot/vserverdr.0.7b5a59c4-656c-11e8-bb80-00a098d614c2.2018-09-18_102500/acrimport_test/ch': >> access to the object is denied >> ANS1898I ***** Processed 500 files ***** >> Directory--> 4,096 /Airwarder/ [Sent] >> Directory--> 4,096 /Airwarder/.etc [Sent] >> >> (skipped some lines) >> >> ANS1228E Sending of object '/Airwarder/acrimport_ref/config/log4j.conf' >> failed. >> ANS4007E Error processing '/Airwarder/acrimport_ref/config/log4j.conf': >> access to the object is denied >> Normal File--> 309 >> /Airwarder/acrimport_ref/config/sapConnector.cfg ** Unsuccessful ** >> ANS1228E Sending of object >> '/Airwarder/acrimport_ref/config/sapConnector.cfg' failed. >> ANS4007E Error processing >> '/Airwarder/acrimport_ref/config/sapConnector.cfg': access to the object is >> denied >> Normal File--> 330 >> /Airwarder/acrimport_ref/config/sapConnector.cfg.bak ** Unsuccessful ** >> ANS1228E Sending of object >> '/Airwarder/acrimport_ref/config/sapConnector.cfg.bak' failed. >> ANS4007E Error processing >> '/Airwarder/acrimport_ref/config/sapConnector.cfg.bak': access to the object >> is denied >> >> (skipped some lines) >> >> ANS1802E Incremental backup of '/Airwarder' finished with 90 failure(s) >> >> >> Total number of objects inspected: 5,881 >> Total number of objects backed up: 5,791 >> Total number of objects updated: 0 >> Total number of objects rebound: 0 >> Total number of objects deleted: 0 >> Total number of objects expired: 0 >> Total number of objects failed: 90 >> Total number of objects encrypted: 0 >> Total number of objects grew: 0 >> Total number of retries: 15 >> Total number of bytes inspected: 1.27 GB >> Total number of bytes transferred: 1.37 GB >> Data transfer time: 18.61 sec >> Network data transfer rate: 77,367.92 KB/sec >> Aggregate data transfer rate: 36,807.03 KB/sec >> Objects compressed by: 0% >> Total data reduction ratio: 0.00% >> Elapsed processing time: 00:00:39 >> >> >> Here, a closer look at some of the files making problems : >> >> root@xxxxxx:~ # ls -al /Airwarder/acrimport_ref/config/sapConnector.cfg.bak >> -rw-r----- 1 root root 330 May 6 2009 >> /Airwarder/acrimport_ref/config/sapConnector.cfg.bak >> >> >> root@xxxxxx:~ # ls -la >> /Airwarder/.snapshot/vserverdr.0.7b5a59c4-656c-11e8-bb80-00a098d614c2.2018-09-18_121000/acrimport_ref/ch >> ls: cannot open directory >> /Airwarder/.snapshot/vserverdr.0.7b5a59c4-656c-11e8-bb80-00a098d614c2.2018-09-18_121000/acrimport_ref/ch: >> Permission denied >> >> And who I am: >> >> root@xxxxxx:~ # id >> uid=0(root) gid=0(root) groups=0(root) >> >> Any idea on how to solve such issues ? >> >> Cheers. >> >> Arnaud >> >> ******************************************************************************************************************************** >> Backup and Recovery Systems Administrator Panalpina Management Ltd., Basle, >> Switzerland, CIT Department Viadukstrasse 42, P.O. Box 4002 Basel/CH >> Phone: +41 (61) 226 11 11, FAX: +41 (61) 226 17 01 >> Direct: +41 (61) 226 19 78 >> e-mail: arnaud.br...@panalpina.com<mailto:arnaud.br...@panalpina.com> >> This electronic message transmission contains information from Panalpina and >> is confidential or privileged. >> This information is intended only for the person (s) named above. If you are >> not the intended recipient, any disclosure, copying, distribution or use or >> any other action based on the contents of this information is strictly >> prohibited. >> >> If you receive this electronic transmission in error, please notify the >> sender by e-mail, telephone or fax at the numbers listed above. Thank you. >> ******************************************************************************************************************************** >
