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+metadata:
+ name: software-raid5
+ format: "Manual Test Definition 1.0"
+ description: "Use Linux utility mdadm to create, rebuilt and delete
+ software RAID5. RAID5 consists of block-level striping with
+ distributed parity."
+ maintainer:
+ - chase.qi@linaro.org
+ os:
+ - debian
+ - ubuntu
+ - centos
+ - fedora
+ scope:
+ - functional
+ devices:
+ - d02
+ - d03
+ - d05
+ - overdrive
+ - moonshot
+ - thunderX
+ environment:
+ - manual-test
+
+run:
+ steps:
+ - Install OS on the SUT(system under test) and make sure it boots.
+ - Power off the SUT and install three extra hard drives(use sd[b|c|d]
+ here). The three hard drives shoud have the same mode, at least the
+ same capacity.
+ - Boot to OS and make sure mdadm utility installed.
+ - Create 'Linux RAID auto' partition on each of the three hard drives
+ by running the following steps.
+ - 1) "fdisk /dev/sdx"
+ - 2) Delete all existing partitions with fdisk command "d"
+ - 3) Create Linux raid auto partition with fdisk commands
+ "n -> p -> 1 -> enter -> enter -> t -> fd -> w"
+ - Run the following steps to test RAID5.
+ - 1) Remove the existing md0. Refer to md0 removing steps above.
+ - 2) "mdadm --create /dev/md0 --level=5 --raid-devices=3 /dev/sdb1 /dev/sdc1 /dev/sdd1"
+ - 3) Monitor '/proc/mdstat' to check if md0 created and running.
+ - 4) "mkfs.ext4 /dev/md0"
+ - 5) "mount /dev/md0 /mnt"
+ - 6) "echo 'RAID5 test' > /mnt/raid5-test.txt"
+ - 7) "mdadm --manage --set-faulty /dev/md0 /dev/sdd1"
+ - 8) "mdadm --manage /dev/md0 -r /dev/sdd1"
+ - 9) Verify that '/mnt/raid5-test.txt' is not damaged.
+ - 10) "mdadm --manage /dev/md0 -a /dev/sdd1"
+ - 11) Monitor the output of "mdadm --detail /dev/md0" and make sure
+ that md0 'rebuilding' can be finished.
+ - Remove the md0 by running the following steps.
+ - 1) "umount /dev/md0"
+ - 2) "mdadm --stop /dev/md0"
+ - 3) "mdadm --remove /dev/md0"
+ - 4) "mdadm --zero-superblock /dev/sdb1 /dev/sdc1 /dev/sdd1"
+
+ expected:
+ - RAID5 array creating, deleting and rebuilding are successful.
+ - When one disk of RAID5 array damaged or removed, no data loss.
+ - When faulty disk replaced with a new one, RAID5 array can be rebuilt.