1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21 22# 23# Copyright (c) 2018 by Lawrence Livermore National Security, LLC. 24# 25 26# 27# DESCRIPTION: 28# Test /proc/spl/kstat/zfs/<pool>/state kstat 29# 30# STRATEGY: 31# 1. Create a mirrored pool 32# 2. Check that pool is ONLINE 33# 3. Fault one disk 34# 4. Check that pool is DEGRADED 35# 5. Create a new pool with a single scsi_debug disk 36# 6. Remove the disk 37# 7. Check that pool is SUSPENDED 38# 8. Add the disk back in 39# 9. Clear errors and destroy the pools 40 41. $STF_SUITE/include/libtest.shlib 42 43verify_runnable "both" 44 45function cleanup 46{ 47 # Destroy the scsi_debug pool 48 if [ -n "$TESTPOOL2" ] ; then 49 if [ -n "$host" ] ; then 50 # Re-enable the disk 51 scan_scsi_hosts $host 52 53 # Device may have changed names after being inserted 54 SDISK=$(get_debug_device) 55 log_must ln $DEV_RDSKDIR/$SDISK $REALDISK 56 fi 57 58 # Restore our working pool image 59 if [ -n "$BACKUP" ] ; then 60 gunzip -c $BACKUP > $REALDISK 61 log_must rm -f $BACKUP 62 fi 63 64 # Our disk is back. Now we can clear errors and destroy the 65 # pool cleanly. 66 log_must zpool clear $TESTPOOL2 67 68 # Now that the disk is back and errors cleared, wait for our 69 # hung 'zpool scrub' to finish. 70 wait 71 72 destroy_pool $TESTPOOL2 73 log_must rm $REALDISK 74 unload_scsi_debug 75 fi 76} 77 78# Check that our pool state values match what's expected 79# 80# $1: pool name 81# $2: expected state ("ONLINE", "DEGRADED", "SUSPENDED", etc) 82function check_all 83{ 84 pool=$1 85 expected=$2 86 87 state1=$(zpool status $pool | awk '/state: /{print $2}'); 88 state2=$(zpool list -H -o health $pool) 89 state3=$(</proc/spl/kstat/zfs/$pool/state) 90 log_note "Checking $expected = $state1 = $state2 = $state3" 91 if [[ "$expected" == "$state1" && "$expected" == "$state2" && \ 92 "$expected" == "$state3" ]] ; then 93 true 94 else 95 false 96 fi 97} 98 99log_onexit cleanup 100 101log_assert "Testing /proc/spl/kstat/zfs/<pool>/state kstat" 102 103# Test that the initial pool is healthy 104check_all $TESTPOOL "ONLINE" 105 106# Fault one of the disks, and check that pool is degraded 107DISK1=$(echo "$DISKS" | awk '{print $2}') 108log_must zpool offline -tf $TESTPOOL $DISK1 109check_all $TESTPOOL "DEGRADED" 110log_must zpool online $TESTPOOL $DISK1 111log_must zpool clear $TESTPOOL 112 113# Create a new pool out of a scsi_debug disk 114TESTPOOL2=testpool2 115MINVDEVSIZE_MB=$((MINVDEVSIZE / 1048576)) 116load_scsi_debug $MINVDEVSIZE_MB 1 1 1 '512b' 117 118SDISK=$(get_debug_device) 119host=$(get_scsi_host $SDISK) 120 121# Use $REALDISK instead of $SDISK in our pool because $SDISK can change names 122# as we remove/add the disk (i.e. /dev/sdf -> /dev/sdg). 123REALDISK=/dev/kstat-state-realdisk 124log_must [ ! -e $REALDISK ] 125ln $DEV_RDSKDIR/$SDISK $REALDISK 126 127log_must zpool create $TESTPOOL2 $REALDISK 128 129# Backup the contents of the disk image 130BACKUP=$TEST_BASE_DIR/kstat-state-realdisk.gz 131log_must [ ! -e $BACKUP ] 132gzip -c $REALDISK > $BACKUP 133 134# Yank out the disk from under the pool 135log_must rm $REALDISK 136remove_disk $SDISK 137 138# Run a 'zpool scrub' in the background to suspend the pool. We run it in the 139# background since the command will hang when the pool gets suspended. The 140# command will resume and exit after we restore the missing disk later on. 141zpool scrub $TESTPOOL2 & 142sleep 3 # Give the scrub some time to run before we check if it fails 143 144log_must check_all $TESTPOOL2 "SUSPENDED" 145 146log_pass "/proc/spl/kstat/zfs/<pool>/state test successful" 147