Hi Justin In specific it's SAP jobs. As mentioned over 60 policies start from 9pm but each one is a SAN media server and each client in its own policy. So I have 10 SAP jobs each using a tape drive from library.
This means other jobs end up queued. I can run thousands ok jobs... But jobs will queue if no drives are available to do the backups on. Backups using same volume pool. But I believe because the policies are using its own SAN media server as a storage unit, it's only backing up itself, therefore a tape is assigned to that policy. I'd like to find out why I could not group multiple SAP backups together. These jobs Justin run a command script, and they start the parent & child jobs. S. > On 18 Dec 2013, at 20:05, "Justin Piszcz" <jpis...@lucidpixels.com> wrote: > > Hi Simon, > > Some comments: > 1. How many jobs are too many? 500 concurrent jobs? 1000 concurrent jobs? > 2000 concurrent jobs? With a UNIX master, if properly spec'd out-- I've > seen it handle 1000-1500 jobs without a problem. > 2. Have you considered moving the platform to Linux or adding additional > Windows media servers to help cope with the load? > 3. Are all of the backups using the same volume pool? > 4. "All LTO4 drives are maxed out" -- the drives themselves are full, (tape > loaded, ok), but did you also mean they are maxed out throughput-wise as > well? Are you achieving 90MiB/s (if already compressed) data to each one? > If not, have you considered increasing the multiplexing? > 5. If there are a bunch of single-stream host jobs, I'm assuming you are > *disallowing* multiple streams, otherwise that would seem to get out of > control quickly? > > The background I have is with Oracle, not SAP though, so my comments revolve > around those types of backups. > > Justin. > >> -----Original Message----- >> From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu- >> boun...@mailman.eng.auburn.edu] On Behalf Of Simon Weaver >> Sent: Wednesday, December 18, 2013 2:54 PM >> To: VERITAS-BU@mailman.eng.auburn.edu >> Subject: [Veritas-bu] SAP backups / Online / Redo >> >> All >> I've been trying to troubleshoot performance and backup issues at an >> environment where all LTO4 drives are maxed out with these type of jobs >> and causing many others to queue or run at an incorrect time. >> >> There are close to around 60 policies where we have online, off-line, and >> redo log backups. >> >> In each policy there was only a single client listed. A lot of these > policies are >> sand media servers therefore they backup themselves. >> >> The problem is we have too many jobs running concurrently and due to the >> vast amount of data on the servers, there is insufficient resources > available >> for NBU to resume the queued jobs. >> >> I would be interested to know if anyone else has a large environment of >> SAP/Oracle backups and what they do backups, because presently these >> jobs I can shaming 98% of our resources and our windows phone service I >> currently struggling to get backed up. >> >> This separate tape drive all these will be in place, but I want to enquire > if >> there is anything that could be done to may be group the SAP online > backups >> into one policy. >> >> But I'm also interested to hear of any ideas or methods that you may be >> using now. >> >> Thanks >> Si >> _______________________________________________ >> Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu >> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > > > _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu