If you’ve got multiple jukeboxes within a NetWorker environment, but primarily work with one of them, you may find ‘nsrjb’ to be a bit of a pain any time you forget to specify the jukebox name. If you’re not familiar with this, here’s how nsrjb reacts in this situation:<\/p>\n
[root@tara ~]# nsrjb\n1:\tVTL1 \t[enabled]\n2:\tVTL2 \t[enabled]\nNo jukebox selected.\nPlease select a jukebox to use:? [1] _<\/pre>\n(Slight aside: never assume the numbered list is the same; NetWorker doesn’t guarantee the order being the same between executions – in fact, I actually only put in an RFE about this a couple of days ago, as I’m hoping it could at least be alphabetically ordered at all times…)<\/p>\n
If you want to avoid the jukebox-prompt from nsrjb, one of the easiest ways is to specify the jukebox name as part of the command – e.g.,<\/p>\n
[root@tara ~]# nsrjb -j VTL1<\/pre>\nThat’s fine of course, but if the vast majority of the time you perform operations on a single jukebox, you can specify a default jukebox as an environment variable (NSR_JUKEBOX) and streamline your processes. For example, on Linux, using the bash, this might look as follows:<\/p>\n
[root@tara ~]# export NSR_JUKEBOX=VTL1\n[root@tara ~]# nsrjb<\/pre>\nJukebox VTL1: (Ready to accept commands)\nslot volume pool barcode volume id recyclable\n1: 800840L4 ClientTesting 800840L4 3814088325 no\n2: 800841L4 ClientTesting 800841L4 3797311146 no\n3: 800842L4 ClientTesting 800842L4 3847642669 no\n4: 800843L4 ClientTesting 800843L4 3780533937 no\n5: 800844L4 ClientTesting 800844L4 3763756765 yes\n6: 800845L4 ClientTesting 800845L4 3864419885 yes\n<snip><\/pre>\nBeing an environment variable, this is something you can choose to set locally \u2013 say, on a per storage-node basis, when you have multiple storage nodes. It’s relatively common for instance to have a tape library on one or more storage nodes, so for the appropriate logins (or even at a system level) on each storage node it would be possible to set the local jukebox as the default, thereby streamlining usage of the units.<\/p>\n
As an example, here’s a lab storage node with the setting in use:<\/p>\n
[root@fawn ~]# export NSR_JUKEBOX=\"rd=fawn:VTL3\"\n[root@fawn ~]# nsrjb -s tara<\/pre>\nJukebox rd=fawn:VTL3: (Ready to accept commands)\n<snip><\/pre>\nFor something that can take you less than 30 seconds to set, the environment variable NSR_JUKEBOX can certainly be a big time saver if you have multiple jukeboxes in your environment and (like me) you’re a command line junkie.<\/p>\n","protected":false},"excerpt":{"rendered":"
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