[Bug 217195] ZFS grabs all the HDD in the system falsely and fails when more 5 HDD is in the system

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217195

            Bug ID: 217195
           Summary: ZFS grabs all the HDD in the system falsely and fails
                    when more 5 HDD is in the system
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: mikhail.rokhin at gmail.com

1. In VBOX create a machine with 5 VHD only
2. Boot from install iso of either CURRENT or 11 stable
3. Choose AutoZFS
4. Choose RAIDZ1 with 3 disks only (don't chose all 5)
5. Follow other steps, reboot
6. Login the fresh system and say "Wow!" - you've got RAIDZ3 instead of chosen
RAIDZ1 and 5 disks attached instead of 3 chosen!!
7. Shutdown the VBox and add another 7 VHD to system
8. Boot the system and see its failure

Summary: AutoZFS of RAIDZ{1,2,3} fails when you choose more than 3 disks during
install and fails when system has more than 5 disks at the install.

So, ZFS automatically grabs all the disks in the system by default, which is
very wrong behavior, failure actually.

To see boot failure just add all the 11 disks to RAIDZ3 AutoZFS during install
and boot in after install is complete.

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