1) You should have four disks (appdg01 through appdg04) in the disk group appdg. Set all disks to have the spare flag on.
[root@server1]# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
emc0_dd1 auto:cdsdisk appdg01 appdg online
emc0_dd2 auto:cdsdisk appdg02 appdg online
emc0_dd3 auto:cdsdisk appdg03 appdg online
emc0_dd4 auto:cdsdisk appdg04 appdg online
emc0_dd5 auto:cdsdisk - - online
emc0_dd6 auto:none - - online invalid
emc0_dd7 auto:none - - online invalid
emc0_dd8 auto:none - - online invalid
emc0_dd9 auto:none - - online invalid
emc0_d10 auto:none - - online invalid
emc0_d11 auto:none - - online invalid
emc0_d12 auto:none - - online invalid
sda auto:none - - online invalid
sdb auto:none - - online invalid
[root@server1]#
[root@server1]#
[root@server1]#
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 emc0_dd1 auto 32.00m 1.96g -
dm appdg02 emc0_dd2 auto 32.00m 1.96g -
dm appdg03 emc0_dd3 auto 32.00m 1.96g -
dm appdg04 emc0_dd4 auto 32.00m 1.96g -
2) Set all disks to have the spare flag on.
[root@server1]# vxedit -g appdg set spare=on appdg01
[root@server1]# vxedit -g appdg set spare=on appdg02
[root@server1]# vxedit -g appdg set spare=on appdg03
[root@server1]# vxedit -g appdg set spare=on appdg04
[root@server1]#
[root@server1]#
3) Create a 100-MB mirrored volume called sparevol.
Is the volume successfully created? Why or why not?
[root@server1]# vxassist -g appdg make sparevol 100m layout=mirror
VxVM vxassist ERROR V-5-1-15315 Cannot allocate space for 204800 block volume: Not enough HDD devices that meet specification.
** Imp Note:
-----------
No, the volume is not created, and you receive the error.
The volume is not created because all disks are set as spares, and vxassist
does not find enough free space to create the volume.
4) Attempt to create the same volume again, but this time specify two disks to
use. Do not clear any spare flags on the disks.
[root@server1]# vxassist -g appdg make sparevol 100m layout=mirror appdg03 appdg04
** Notice that VxVM overrides its default and applies the two spare disks to the
volume because the two disks were specified by the administrator.
5) Check the DG & Volume details.
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 emc0_dd1 auto 32.00m 1.96g SPARE
dm appdg02 emc0_dd2 auto 32.00m 1.96g SPARE
dm appdg03 emc0_dd3 auto 32.00m 1.96g SPARE
dm appdg04 emc0_dd4 auto 32.00m 1.96g SPARE
v sparevol - ENABLED ACTIVE 100.00m SELECT - fsgen
pl sparevol-01 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg03-01 sparevol-01 appdg03 0.00 100.00m 0.00 emc0_dd3 ENA
pl sparevol-02 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg04-01 sparevol-02 appdg04 0.00 100.00m 0.00 emc0_dd4 ENA
6) Remove the sparevol volume.
[root@server1]# vxassist -g appdg remove volume sparevol
7) Verify that the relocation daemon (vxrelocd) is running. If not, start it.
[root@server1]# ps -ef |grep vxrelocd
root 30650 9119 0 04:21 pts/1 00:00:00 grep vxrelocd
[root@server1]# vxrelocd root &
[1] 30676
[root@server1]#
VxVM vxcommon INFO V-5-2-6004 Removing stale lock file
[root@server1]# ps -ef |grep vxrelocd
root 30676 9119 0 04:21 pts/1 00:00:00 /bin/sh - /opt/VRTS/bin/vxrelocd root
root 30725 30676 0 04:21 pts/1 00:00:00 /bin/sh - /opt/VRTS/bin/vxrelocd root
root 31215 9119 0 04:24 pts/1 00:00:00 grep vxrelocd
8) Remove the spare flags from three of the four disks.
[root@server1]# vxedit -g appdg set spare=off appdg01
[root@server1]# vxedit -g appdg set spare=off appdg02
[root@server1]# vxedit -g appdg set spare=off appdg03
[root@server1]#
[root@server1]#
9) Create a 100-MB concatenated mirrored volume called sparevol.
[root@server1]# vxassist -g appdg make sparevol 100m layout=mirror
10) Check the DG and Volume details:
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 emc0_dd1 auto 32.00m 1.96g -
dm appdg02 emc0_dd2 auto 32.00m 1.96g -
dm appdg03 emc0_dd3 auto 32.00m 1.96g -
dm appdg04 emc0_dd4 auto 32.00m 1.96g SPARE
v sparevol - ENABLED ACTIVE 100.00m SELECT - fsgen
pl sparevol-01 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg01-01 sparevol-01 appdg01 0.00 100.00m 0.00 emc0_dd1 ENA
pl sparevol-02 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg02-01 sparevol-02 appdg02 0.00 100.00m 0.00 emc0_dd2 ENA
[root@server1]#
11) Now simulate the disk failure by overwriting the private region of the disk as follows:-
Supposed the disk we want to fail is: emc0_dd1
Overwrite the private region of emc0_dd1 as follows:-
/bin/dd if=/dev/zero of=/dev/vx/rdmp/emc0_dd1 bs=128k seek=1 count=2 >/dev/null 2>&1
/sbin/vxdctl disable
/sbin/vxdctl enable
12) Check whether disk has failed:-
[root@server1]# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
emc0_dd1 auto:cdsdisk - - online invalid
emc0_dd2 auto:cdsdisk appdg02 appdg online
emc0_dd3 auto:cdsdisk appdg03 appdg online
emc0_dd4 auto:cdsdisk appdg04 appdg online spare
emc0_dd5 auto:cdsdisk - - online
emc0_dd6 auto:none - - online invalid
emc0_dd7 auto:none - - online invalid
emc0_dd8 auto:none - - online invalid
emc0_dd9 auto:none - - online invalid
emc0_d10 auto:none - - online invalid
emc0_d11 auto:none - - online invalid
emc0_d12 auto:none - - online invalid
sda auto:none - - online invalid
sdb auto:none - - online invalid
- - appdg01 appdg failed was:emc0_dd1 <----- Disk is displayed as failed disk.
13) Now check the vxprint output. After waiting for a few minutes, you will find that the hot relocation of failed disk has taken place.
The failed disk has a status of NODEVICE. VxVM has relocated the mirror of the failed disk onto the designated spare disk.
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 - - - - NODEVICE <----- Failed device status is NODEVICE.
dm appdg02 emc0_dd2 auto 32.00m 1.96g -
dm appdg03 emc0_dd3 auto 32.00m 1.96g -
dm appdg04 emc0_dd4 auto 32.00m 1.96g SPARE
v sparevol - ENABLED ACTIVE 100.00m SELECT - fsgen
pl sparevol-01 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg04-01 sparevol-01 appdg04 0.00 100.00m 0.00 emc0_dd4 ENA <----- This plex is on spare disk now.
pl sparevol-02 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg02-01 sparevol-02 appdg02 0.00 100.00m 0.00 emc0_dd2 ENA
14) Now recover the disk by replacing the private and public region of the disk.
[root@server1]# vxdisksetup -i emc0_dd1
[root@server1]# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
emc0_dd1 auto:cdsdisk - - online
emc0_dd2 auto:cdsdisk appdg02 appdg online
emc0_dd3 auto:cdsdisk appdg03 appdg online
emc0_dd4 auto:cdsdisk appdg04 appdg online spare
emc0_dd5 auto:cdsdisk - - online
emc0_dd6 auto:none - - online invalid
emc0_dd7 auto:none - - online invalid
emc0_dd8 auto:none - - online invalid
emc0_dd9 auto:none - - online invalid
emc0_d10 auto:none - - online invalid
emc0_d11 auto:none - - online invalid
emc0_d12 auto:none - - online invalid
sda auto:none - - online invalid
sdb auto:none - - online invalid
- - appdg01 appdg failed was:emc0_dd1 <----- Disk still shows failed.
15) Now bring the disk back under VxVM control and into the disk group to replace the
failed disk media name.
[root@server1]# vxdg -g appdg -k adddisk appdg01=emc0_dd1
[root@server1]#
[root@server1]#
[root@server1]#
[root@server1]# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
emc0_dd1 auto:cdsdisk appdg01 appdg online <----- Its status has changed to online.
emc0_dd2 auto:cdsdisk appdg02 appdg online
emc0_dd3 auto:cdsdisk appdg03 appdg online
emc0_dd4 auto:cdsdisk appdg04 appdg online spare
emc0_dd5 auto:cdsdisk - - online
emc0_dd6 auto:none - - online invalid
emc0_dd7 auto:none - - online invalid
emc0_dd8 auto:none - - online invalid
emc0_dd9 auto:none - - online invalid
emc0_d10 auto:none - - online invalid
emc0_d11 auto:none - - online invalid
emc0_d12 auto:none - - online invalid
sda auto:none - - online invalid
sdb auto:none - - online invalid
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 emc0_dd1 auto 32.00m 1.96g -
dm appdg02 emc0_dd2 auto 32.00m 1.96g -
dm appdg03 emc0_dd3 auto 32.00m 1.96g -
dm appdg04 emc0_dd4 auto 32.00m 1.96g SPARE
v sparevol - ENABLED ACTIVE 100.00m SELECT - fsgen
pl sparevol-01 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg04-01 sparevol-01 appdg04 0.00 100.00m 0.00 emc0_dd4 ENA <----- Still the spare disk is being used.
pl sparevol-02 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg02-01 sparevol-02 appdg02 0.00 100.00m 0.00 emc0_dd2 ENA
16) Now remove the hot relocation for the disk as follows:
[root@server1]# vxunreloc -g appdg appdg01
[root@server1]#
[root@server1]#
[root@server1]#
17) Wait until the volume is fully recovered before continuing. Check to ensure that the disk and the volume are fully recovered.
[root@server1]# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
emc0_dd1 auto:cdsdisk appdg01 appdg online
emc0_dd2 auto:cdsdisk appdg02 appdg online
emc0_dd3 auto:cdsdisk appdg03 appdg online
emc0_dd4 auto:cdsdisk appdg04 appdg online spare
emc0_dd5 auto:cdsdisk - - online
emc0_dd6 auto:none - - online invalid
emc0_dd7 auto:none - - online invalid
emc0_dd8 auto:none - - online invalid
emc0_dd9 auto:none - - online invalid
emc0_d10 auto:none - - online invalid
emc0_d11 auto:none - - online invalid
emc0_d12 auto:none - - online invalid
sda auto:none - - online invalid
sdb auto:none - - online invalid
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 emc0_dd1 auto 32.00m 1.96g -
dm appdg02 emc0_dd2 auto 32.00m 1.96g -
dm appdg03 emc0_dd3 auto 32.00m 1.96g -
dm appdg04 emc0_dd4 auto 32.00m 1.96g SPARE
v sparevol - ENABLED ACTIVE 100.00m SELECT - fsgen
pl sparevol-01 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg01-UR-001 sparevol-01 appdg01 0.00 100.00m 0.00 emc0_dd1 ENA <----- It is back to emc0_dd1. Also subdisk with the UR tag is being shown.
pl sparevol-02 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg02-01 sparevol-02 appdg02 0.00 100.00m 0.00 emc0_dd2 ENA
18) Rename the unrelocated subdisk to its original name.
[root@server1]# vxedit -g appdg rename appdg01-UR-001 appdg01-01
[root@server1]#
[root@server1]#
[root@server1]#
[root@server1]#
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 emc0_dd1 auto 32.00m 1.96g -
dm appdg02 emc0_dd2 auto 32.00m 1.96g -
dm appdg03 emc0_dd3 auto 32.00m 1.96g -
dm appdg04 emc0_dd4 auto 32.00m 1.96g SPARE
v sparevol - ENABLED ACTIVE 100.00m SELECT - fsgen
pl sparevol-01 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg01-01 sparevol-01 appdg01 0.00 100.00m 0.00 emc0_dd1 ENA <----- It is back to its original name.
pl sparevol-02 sparevol ENABLED ACTIVE 100.00m CONCAT - RW
sd appdg02-01 sparevol-02 appdg02 0.00 100.00m 0.00 emc0_dd2 ENA
19) You can remove the volume now.
[root@server1]# vxassist -g appdg remove volume sparevol
[root@server1]# vxprint -g appdg -htu h
DG NAME NCONFIG NLOG MINORS GROUP-ID
ST NAME STATE DM_CNT SPARE_CNT APPVOL_CNT
DM NAME DEVICE TYPE PRIVLEN PUBLEN STATE
RV NAME RLINK_CNT KSTATE STATE PRIMARY DATAVOLS SRL
RL NAME RVG KSTATE STATE REM_HOST REM_DG REM_RLNK
CO NAME CACHEVOL KSTATE STATE
VT NAME RVG KSTATE STATE NVOLUME
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE
dg appdg default default 1000 1422525023.21.sym1
dm appdg01 emc0_dd1 auto 32.00m 1.96g -
dm appdg02 emc0_dd2 auto 32.00m 1.96g -
dm appdg03 emc0_dd3 auto 32.00m 1.96g -
dm appdg04 emc0_dd4 auto 32.00m 1.96g SPARE
[root@server1]#
[root@server1]#
20) Remove the spare flag from the last disk.
[root@server1]# vxedit -g appdg set spare=off appdg04
[root@server1]#
[root@server1]#
[root@server1]#
[root@server1]# vxdisk -o alldgs list
DEVICE TYPE DISK GROUP STATUS
emc0_dd1 auto:cdsdisk appdg01 appdg online
emc0_dd2 auto:cdsdisk appdg02 appdg online
emc0_dd3 auto:cdsdisk appdg03 appdg online
emc0_dd4 auto:cdsdisk appdg04 appdg online
emc0_dd5 auto:cdsdisk - - online
emc0_dd6 auto:none - - online invalid
emc0_dd7 auto:none - - online invalid
emc0_dd8 auto:none - - online invalid
emc0_dd9 auto:none - - online invalid
emc0_d10 auto:none - - online invalid
emc0_d11 auto:none - - online invalid
emc0_d12 auto:none - - online invalid
sda auto:none - - online invalid
sdb auto:none - - online invalid
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