On Linu, filesystems typically have two settings regarding getting complete checks on boot. These are:<\/p>\n
The default settings, while reasonably suitable for smaller partitions, are very unsuitable for large partitions, such as what you find in disk backup units. In fact, if you don’t pay particular attention to these settings, you may find after a routine reboot that your backup server (or storage node) can take hours to become available. For instance, it’s not unheard of to see even sub-20TB DBU environments (as say, 10 x 2TB filesystems) take several hours<\/em> to complete mandatory checks on filesystems after what should have just been a routine reboot.<\/p>\n There are two approaches that you can take to this:<\/p>\n Neither option is particularly “attractive”. In the first case, you can still, if you cherish uptime or don’t need to reboot your backup server often, get into a situation where multiple filesystems need to be checked on reboot if they’ve all exceeded their days-between-checks parameter. In the second instance, you’re having to insert human driven processes into what should normally be a routine operating system function. In particular with the manual option, there must be a process in place to NetWorker shutdown + checking even in the middle of the night if an OS crash occurs<\/em>.<\/p>\n Actually, the above list is a little limited – there’s a couple of other options that you can consider as well – though they’re a little more left of field:<\/p>\n\n
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