10-21-2013 07:07 AM
Alright, we've been dealing with this problem for over a week now. Need help urgently.
We just recently installed a Quantum DXi8500 (configured as VTL) to compliment our Quantum i2000 physical library. We can write data to the DXi fine, it's when we go to duplicate the data off to physical tape where we run into problems. We get HUGE spikes in network traffic that basically shuts down our network. We have our master server set up as NDMP host, when we dupe from it it goes over fiber as it should and we get no spike, but any other media server and it goes over ethernet....the way we were sold this was the media server would just coordinate the data being pushed from the VTL to physical, and it wouldn't have to perform any read/writes....but it isn't happening that way.
We've contacted support numerous times and are basically getting nowhere. Is there some way to make the media servers facilitate path to tape like our master server does without using ethernet?
Thanks!
10-21-2013 07:36 AM
The media server that did the backup will also perform the duplication.
Have you set any servers as "alternate read server" in the SLP configuration ?
10-21-2013 07:40 AM
We've tried selecting the master server/NDMP host as alternate read server in both SLP and Vault and that didn't seem to work.
10-21-2013 07:42 AM
10-21-2013 07:44 AM
Yes, we are looking to go straight from VTL to Physical tape, it works that way with our master/NDMP host, but not with any other images written with other media servers.
10-21-2013 07:56 AM
You need to config the media servers the same way as the master server.
Covered over here:
Chapter 5 of NetBackup for NDMP Administrator's Guide http://www.symantec.com/docs/DOC5164
10-21-2013 08:21 AM
So each media server needs drives shared from the NDMP host?
10-21-2013 10:08 AM
10-24-2013 11:46 AM
Ok, we've got the path to tape thing figured out. We can dupe to physical tape fine...but now, just when we think we're good something else breaks. Now our drives for master are flip flopping between PEND-TLD and SCAN-TLD and just our windows jobs are having trouble mounting virtual tapes from our VTL.
10/24/2013 12:42:02 PM - Info nbjm(pid=4360) starting backup job (jobid=9353) for client finms-nbmaster, policy z-test_finms-nbmaster, schedule Onetime
10/24/2013 12:42:02 PM - Info nbjm(pid=4360) requesting STANDARD_RESOURCE resources from RB for backup job (jobid=9353, request id:{EE9110F2-55F3-4AA9-9425-7BF5691C85CE})
10/24/2013 12:42:02 PM - requesting resource nbmaster_tld0
10/24/2013 12:42:02 PM - requesting resource finms-nbmaster.NBU_CLIENT.MAXJOBS.finms-nbmaster
10/24/2013 12:42:02 PM - requesting resource finms-nbmaster.NBU_POLICY.MAXJOBS.z-test_finms-nbmaster
10/24/2013 12:42:03 PM - granted resource finms-nbmaster.NBU_CLIENT.MAXJOBS.finms-nbmaster
10/24/2013 12:42:03 PM - granted resource finms-nbmaster.NBU_POLICY.MAXJOBS.z-test_finms-nbmaster
10/24/2013 12:42:03 PM - granted resource AA1479
10/24/2013 12:42:03 PM - granted resource IBM.ULTRIUM-TD4.056
10/24/2013 12:42:03 PM - granted resource nbmaster_tld0
10/24/2013 12:42:03 PM - estimated 241781869 Kbytes needed
10/24/2013 12:42:03 PM - Info nbjm(pid=4360) started backup (backupid=finms-nbmaster_1382632923) job for client finms-nbmaster, policy z-test_finms-nbmaster, schedule Onetime on storage unit nbmaster_tld0
10/24/2013 12:42:03 PM - started
10/24/2013 12:42:04 PM - Info bpbrm(pid=8412) finms-nbmaster is the host to backup data from
10/24/2013 12:42:04 PM - Info bpbrm(pid=8412) reading file list from client
10/24/2013 12:42:04 PM - started process bpbrm (8412)
10/24/2013 12:42:04 PM - connecting
10/24/2013 12:42:05 PM - Info bpbrm(pid=8412) starting bpbkar32 on client
10/24/2013 12:42:05 PM - connected; connect time: 00:00:01
10/24/2013 12:42:07 PM - Info bpbkar32(pid=6644) Backup started
10/24/2013 12:42:07 PM - Info bptm(pid=5072) start
10/24/2013 12:42:07 PM - Info bptm(pid=5072) using 262144 data buffer size
10/24/2013 12:42:07 PM - Info bptm(pid=5072) setting receive network buffer to 262144 bytes
10/24/2013 12:42:07 PM - Info bptm(pid=5072) using 32 data buffers
10/24/2013 12:42:08 PM - Info bptm(pid=5072) start backup
10/24/2013 12:42:08 PM - Info bptm(pid=5072) Waiting for mount of media id AA1479 (copy 1) on server finms-nbmaster.
10/24/2013 12:42:08 PM - mounting AA1479
10/24/2013 12:42:44 PM - Info bpbkar32(pid=6644) change journal NOT enabled for <D:\From_Win2K3_NBU_D\backup_host_file>
10/24/2013 12:42:52 PM - Info bpbkar32(pid=6644) bpbkar waited 0 times for empty buffer, delayed 0 times.
10/24/2013 1:00:34 PM - Error bptm(pid=5072) error requesting media, TpErrno = Robot operation failed
10/24/2013 1:00:34 PM - Warning bptm(pid=5072) media id AA1479 load operation reported an error
10/24/2013 1:00:34 PM - current media AA1479 complete, requesting next resource Any
10/24/2013 1:04:06 PM - Error bptm(pid=5072) NBJM returned an extended error status: All compatible drive paths are down but media is available (2009)
10/24/2013 1:04:06 PM - Info bptm(pid=5072) EXITING with status 252 <----------
10/24/2013 1:04:10 PM - Error bpbrm(pid=8412) cannot send mail to XXXXXX
10/24/2013 1:04:11 PM - Info bpbkar32(pid=6644) done. status: 252: extended error status has been encountered, check logs
10/24/2013 1:04:11 PM - end writing
10/24/2013 1:04:12 PM - Info bpbrm(pid=9336) Starting delete snapshot processing
10/24/2013 1:04:12 PM - Info bpfis(pid=0) Snapshot will not be deleted
10/24/2013 1:04:15 PM - Info bpfis(pid=1120) Backup started
10/24/2013 1:04:15 PM - Critical bpbrm(pid=9336) from client finms-nbmaster: cannot open D:\Program Files\Veritas\NetBackup\online_util\fi_cntl\bpfis.fim.finms-nbmaster_1382632923.1.0
10/24/2013 1:04:15 PM - Info bpfis(pid=1120) done. status: 1542
10/24/2013 1:04:15 PM - end operation
10/24/2013 1:04:15 PM - Info bpfis(pid=0) done. status: 1542: An existing snapshot is no longer valid and cannot be mounted for subsequent operations
extended error status has been encountered, check logs(252)
10-24-2013 01:01 PM
possible solution from Article URL http://www.symantec.com/docs/TECH124872
SOLUTION/WORKAROUND:
-Customer is backing up to a VTL then duplicating to tape
-Trying to lock a file/drive that was already locked on the VTL seems to be the source of the issue
-We downed and upped the drives again
-This broke the deadlock and backups started writing again
10-24-2013 01:22 PM
11-07-2013 06:47 PM
Just wanted to pipe in here. Haven't see a mention on what version you are, but I believe Direct Copy was broken again in 7.5 until 7.5.0.3
Had a customer set this up recently and through testing and with the fact that the original media server is going to run the duplication, we ensured that it had ndmp credentials for the quantum and configured ndmp tape paths for the vtl. This qualifies as the read server and while we were at it setup ndmp path tapes for the physical library as well so it could also be the write server, effectively isolating the duplication to that server.