How to recover VG after remove VG by smit or other
Vous pouvez vous inspirer de cette procédure pour récupérer un filesystem suite à un "rmlv" ou rmfs malencontreux.
Cette procédure est inspirée de ce script:
http://www.zubyzu.com/aix/mergevg.html
Warning::
Le pré-requis pour récupérer un VG : Avoir les vgdata ou un snap qui contient les MAP des LVs.
- VGDATA location:
/tmp/vgdata/
- SNAP location:
/tmp/ibmsupt/lvm/
Maquette de test
Créer un VG sur hdisk1
# lspv
hdisk0 00c848edfe43e40c rootvg active
hdisk1 00c848ed176293f8 testvg active
hdisk0 00c848edfe43e40c rootvg active
hdisk1 00c848ed176293f8 testvg active
Créer un FS
# mklv -t jfs2 -y testlv1 testvg 200 hdisk1
# crfs -v jfs2 -d testlv1 -m /testfs1 -A yes
# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
testlv1 jfs2 100 100 1 open/syncd /testfs1
loglv00 jfs2log 1 1 1 open/syncd N/A
# mount /testfs1
# crfs -v jfs2 -d testlv1 -m /testfs1 -A yes
# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
testlv1 jfs2 100 100 1 open/syncd /testfs1
loglv00 jfs2log 1 1 1 open/syncd N/A
# mount /testfs1
Vérifier les VGDA de hdisk1
# lqueryvg -p hdisk1 -At
Max LVs: 256
PP Size: 23
Free PPs: 438
LV count: 2
PV count: 1
Total VGDAs: 2
Conc Allowed: 0
MAX PPs per PV 1016
MAX PVs: 32
Quorum (disk): 1
Quorum (dd): 1
Auto Varyon ?: 1
Conc Autovaryo 0
Varied on Conc 0
Logical: 00c848ed00004c000000012b1773ef4b.1 testlv1 1
00c848ed00004c000000012b1773ef4b.2 loglv00 1
Physical: 00c848ed176293f8 2 0
Total PPs: 639
LTG size: 128
HOT SPARE: 0
AUTO SYNC: 0
VG PERMISSION: 0
SNAPSHOT VG: 0
IS_PRIMARY VG: 0
PSNFSTPP: 4352
VARYON MODE: 0
VG Type: 0
Max PPs: 32512
Max LVs: 256
PP Size: 23
Free PPs: 438
LV count: 2
PV count: 1
Total VGDAs: 2
Conc Allowed: 0
MAX PPs per PV 1016
MAX PVs: 32
Quorum (disk): 1
Quorum (dd): 1
Auto Varyon ?: 1
Conc Autovaryo 0
Varied on Conc 0
Logical: 00c848ed00004c000000012b1773ef4b.1 testlv1 1
00c848ed00004c000000012b1773ef4b.2 loglv00 1
Physical: 00c848ed176293f8 2 0
Total PPs: 639
LTG size: 128
HOT SPARE: 0
AUTO SYNC: 0
VG PERMISSION: 0
SNAPSHOT VG: 0
IS_PRIMARY VG: 0
PSNFSTPP: 4352
VARYON MODE: 0
VG Type: 0
Max PPs: 32512
Executer ces commandes, les MAP des LVs sont requises pour récupérer un VG.
# mkvgdata -m testvg
or
# snap -a
or
# snap -a
C'est parti !!!
# umount /testfs1
# smitty vg
Remove a Volume Group
* VOLUME GROUP name [testvg]
ARE YOU SURE?
rmlv: Logical volume testlv1 is removed.
rmlv: Logical volume loglv00 is removed.
ldeletepv: Volume Group deleted since it contains no physical volumes.
# smitty vg
Remove a Volume Group
* VOLUME GROUP name [testvg]
ARE YOU SURE?
rmlv: Logical volume testlv1 is removed.
rmlv: Logical volume loglv00 is removed.
ldeletepv: Volume Group deleted since it contains no physical volumes.
Les VGDA ont été supprimée .
# lqueryvg -p hdisk1 -At
0516-320 lqueryvg: Physical volume hdisk1 is not assigned to
a volume group.
0516-066 lqueryvg: Physical volume is not a volume group member.
Check the physical volume name specified.
# lspv
hdisk0 00c848edfe43e40c rootvg active
hdisk1 00c848ed176293f8 None
0516-320 lqueryvg: Physical volume hdisk1 is not assigned to
a volume group.
0516-066 lqueryvg: Physical volume is not a volume group member.
Check the physical volume name specified.
# lspv
hdisk0 00c848edfe43e40c rootvg active
hdisk1 00c848ed176293f8 None
Récupérer le VG
# ls -l /tmp/vgdata/testvg
total 32
-rw-r--r-- 1 root system 2117 Sep 15 21:16 filesystems
-rw-r--r-- 1 root system 12 Sep 15 21:16 loglv00.map
-rw-r--r-- 1 root system 2400 Sep 15 21:16 testlv1.map
-rw-r--r-- 1 root system 2531 Sep 15 21:16 testvg.data
total 32
-rw-r--r-- 1 root system 2117 Sep 15 21:16 filesystems
-rw-r--r-- 1 root system 12 Sep 15 21:16 loglv00.map
-rw-r--r-- 1 root system 2400 Sep 15 21:16 testlv1.map
-rw-r--r-- 1 root system 2531 Sep 15 21:16 testvg.data
Vérifier la taille de la PP du VG
# grep PPSIZE /tmp/vgdata/testvg/testvg.data
PPSIZE= 8
PPSIZE= 8
Recréer le VG avec la bonne taille de PPs
# mkvg -s 8 -y testvg hdisk1
# lspv
hdisk0 00c848edfe43e40c rootvg active
hdisk1 00c848ed176293f8 testvg active
# lspv
hdisk0 00c848edfe43e40c rootvg active
hdisk1 00c848ed176293f8 testvg active
Vérifier le nombre de PPs et le type de LV pour chaque LV du VG
# cat /tmp/vgdata/testvg/loglv00.map | wc -l
1
# grep -p 'LOGICAL_VOLUME= loglv00' /tmp/vgdata/testvg/testvg.data | grep TYPE
TYPE= jfs2log
1
# grep -p 'LOGICAL_VOLUME= loglv00' /tmp/vgdata/testvg/testvg.data | grep TYPE
TYPE= jfs2log
Recréer le LV à l'aide des paramètres précédents
# mklv -t jfs2log -y loglv00 -m /tmp/vgdata/testvg/loglv00.map testvg 1
Au suivant ...
# cat /tmp/vgdata/testvg/testlv1.map | wc -l
200
# grep -p 'LOGICAL_VOLUME= testlv1' /tmp/vgdata/testvg/testvg.data | grep TYPE
TYPE= jfs2
# mklv -t jfs2 -y testlv1 -m /tmp/vgdata/testvg/testlv1.map testvg 200
200
# grep -p 'LOGICAL_VOLUME= testlv1' /tmp/vgdata/testvg/testvg.data | grep TYPE
TYPE= jfs2
# mklv -t jfs2 -y testlv1 -m /tmp/vgdata/testvg/testlv1.map testvg 200
Vérifier l'état des LV
# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
loglv00 jfs2log 1 1 1 closed/syncd N/A
testlv1 jfs2 200 200 1 closed/syncd N/A
# getlvcb -AT testlv1
AIX LVCB
intrapolicy = m
copies = 1
interpolicy = m
lvid = 00c848ed00004c000000012b17819b9d.2
lvname = testlv1
label =
machine id = 848ED4C00
number lps = 200
relocatable = y
strict = y
stripe width = 0
stripe size in exponent = 0
type = jfs2
upperbound = 32
fs =
time created = Wed Sep 15 21:36:32 2010
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
loglv00 jfs2log 1 1 1 closed/syncd N/A
testlv1 jfs2 200 200 1 closed/syncd N/A
# getlvcb -AT testlv1
AIX LVCB
intrapolicy = m
copies = 1
interpolicy = m
lvid = 00c848ed00004c000000012b17819b9d.2
lvname = testlv1
label =
machine id = 848ED4C00
number lps = 200
relocatable = y
strict = y
stripe width = 0
stripe size in exponent = 0
type = jfs2
upperbound = 32
fs =
time created = Wed Sep 15 21:36:32 2010
Vérifier les options des filesystems à partir du snap ou /tmp/vgdata/testvg/filesystems
Inscrire dans le logical volume control block toutes les options
# /usr/sbin/putlvcb -f log=/dev/loglv00:mount=true:options=rw:account=false testlv1
# /usr/sbin/putlvcb -L /testfs1 testlv1
# getlvcb -AT testlv1
AIX LVCB
intrapolicy = m
copies = 1
interpolicy = m
lvid = 00c848ed00004c000000012b17819b9d.2
lvname = testlv1
label = /testfs1
machine id = 848ED4C00
number lps = 200
relocatable = y
strict = y
stripe width = 0
stripe size in exponent = 0
type = jfs2
upperbound = 32
fs = log=/dev/loglv00:mount=true:options=rw:account=false
time created = Wed Sep 15 21:36:32 2010
time modified = Wed Sep 15 21:39:12 2010
# /usr/sbin/putlvcb -L /testfs1 testlv1
# getlvcb -AT testlv1
AIX LVCB
intrapolicy = m
copies = 1
interpolicy = m
lvid = 00c848ed00004c000000012b17819b9d.2
lvname = testlv1
label = /testfs1
machine id = 848ED4C00
number lps = 200
relocatable = y
strict = y
stripe width = 0
stripe size in exponent = 0
type = jfs2
upperbound = 32
fs = log=/dev/loglv00:mount=true:options=rw:account=false
time created = Wed Sep 15 21:36:32 2010
time modified = Wed Sep 15 21:39:12 2010
Copier le fichier filesystems dans /etc
# cp /etc/filesystems /etc/filesystems.bak
# cp filesystems /etc/filesystems
# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
loglv00 jfs2log 1 1 1 closed/syncd N/A
testlv1 jfs2 200 200 1 closed/syncd /testfs1
# lqueryvg -p hdisk1 -At
Max LVs: 256
PP Size: 23
Free PPs: 438
LV count: 2
PV count: 1
Total VGDAs: 2
Conc Allowed: 0
MAX PPs per PV 1016
MAX PVs: 32
Quorum (disk): 1
Quorum (dd): 1
Auto Varyon ?: 1
Conc Autovaryo 0
Varied on Conc 0
Logical: 00c848ed00004c000000012b17819b9d.1 loglv00 1
00c848ed00004c000000012b17819b9d.2 testlv1 1
Physical: 00c848ed176293f8 2 0
Total PPs: 639
LTG size: 128
HOT SPARE: 0
AUTO SYNC: 0
VG PERMISSION: 0
SNAPSHOT VG: 0
IS_PRIMARY VG: 0
PSNFSTPP: 4352
VARYON MODE: 0
VG Type: 0
Max PPs: 32512
# cp filesystems /etc/filesystems
# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
loglv00 jfs2log 1 1 1 closed/syncd N/A
testlv1 jfs2 200 200 1 closed/syncd /testfs1
# lqueryvg -p hdisk1 -At
Max LVs: 256
PP Size: 23
Free PPs: 438
LV count: 2
PV count: 1
Total VGDAs: 2
Conc Allowed: 0
MAX PPs per PV 1016
MAX PVs: 32
Quorum (disk): 1
Quorum (dd): 1
Auto Varyon ?: 1
Conc Autovaryo 0
Varied on Conc 0
Logical: 00c848ed00004c000000012b17819b9d.1 loglv00 1
00c848ed00004c000000012b17819b9d.2 testlv1 1
Physical: 00c848ed176293f8 2 0
Total PPs: 639
LTG size: 128
HOT SPARE: 0
AUTO SYNC: 0
VG PERMISSION: 0
SNAPSHOT VG: 0
IS_PRIMARY VG: 0
PSNFSTPP: 4352
VARYON MODE: 0
VG Type: 0
Max PPs: 32512
Monter et vérifier l'intégrité des filesystems.
Commentaires ()
Trackbacks (0)
(Souscrire aux commentaires de cet article)
Aucun trackbacks pour l'instant
Catégories
- AIX
- AZURE
- BULL SYSTEM
- CEPH
- GLUSTER
- HACMP
- HMC
- IBM SYSTEM
- KUBERNETES
- LINUX
- NAS
- NIM
- Non classé
- OPENSHIFT
- ORACLE
- PERFORMANCE
- SAN
- TSM
- VIDEOS
- VIRTUAL I/O SERVER
Liens
- AIX Hiper APARs
- AIX Open Source Packages
- Awesome Kubernetes
- IBM AIX developerworks
- IBM Fix Central
- IBM HTTP Server
- IBM Power Bulletins
- IBM Redbooks
- Infocenter AIX 6.1
- Infocenter AIX 7.1
- Infocenter AIX5L
- Infocenter TSM 6.3
- SQL for Tivoli Storage Manager
- The Django Book
- TSM admin
- TSM Wiki
Tag Cloud
WP Cumulus Flash tag cloud by Roy Tanck requires Flash Player 9 or better.
Visiteurs
