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Whither btrfsck?Whither btrfsck?Posted Oct 12, 2011 8:23 UTC (Wed) by arnd (subscriber, #8866)In reply to: Whither btrfsck? by jcm Parent article: Whither btrfsck?
I think that's all fine, as long as we have enough people zapping themselves with btrfs in their homes[1]. A problem that I frequently heard cited with mainframe OSs is that every customer buys the latest release the moment it comes out and then waits for six to twelve months before installing it since they know it is less stable than what they want. [1] Me included, will gladly donate broken root fs image to btrfsck testing now that I copied all the readable data to a new partition.
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Whither btrfsck? Posted Oct 12, 2011 19:47 UTC (Wed) by Baylink (subscriber, #755) [Link]
I Am Not A VM Guy... but what I know of them suggests that
> A problem that I frequently heard cited with mainframe OSs is that every customer buys the latest release the moment it comes out and then waits for six to twelve months before installing it since they know it is less stable than what they want.
isn't actually true: I would assume the load the new OS in a VM or LPAR, and dump test loads on it to see if it works, before promoting it to production.
Hardware-level virtualization makes that stuff easy...
Whither btrfsck? Posted Oct 12, 2011 20:19 UTC (Wed) by arnd (subscriber, #8866) [Link]
You're right, I oversimplified. What tends to happen is that people wait half a year after the release, then install the new OS into a test partition and test for another six months before putting the system into production.
The times are obviously different depending on how paranoid the admin is and on the type of workload.
However, there are still good reasons for waiting: The bugs you encounter while running the new software on your test partition are often different from the bugs that other people encounter while running the same software in production. If you care a lot about stability, you probably want to have both kinds of problems solved before you get to the point of no return.
Whither btrfsck? Posted Oct 13, 2011 13:35 UTC (Thu) by pspinler (subscriber, #2922) [Link]
Speaking as a VM guy, you're mostly right, except that we do our new releases in a 2nd level virtual.
VM is pretty cool, and it makes a neat platform to run linux on. :-)
-- Pat
Whither btrfsck? Posted Oct 13, 2011 15:06 UTC (Thu) by Baylink (subscriber, #755) [Link]
And that's a conversation I'd like to have with Someone Who Knows, off line, in much greater detail, Pat... :-)
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