Aggiungo un disco da 50GB (hdisk27) che ospiterà il rootvg della nuova partizione , sulla vecchia si chiamerà altinst_rootvg
al termine dell'operazione.
root@lpar1:/#lspv hdisk0 00cff683554eac45 rootvg active hdisk1 00cff683554eac7b rootvg active hdisk4 00cff683e9f9313f vgappl30 active hdisk2 00cff68379f89cc7 vgappl31 active hdisk3 00cff68379f89dbe vgappl32 active hdisk5 00cff68379f89e28 vgappl33 active hdisk6 00cff68379f89e74 vgappl34 active hdisk7 00cff68379f89eb4 vgappl35 active hdisk8 00cff68379f89ef9 vgappl36 active hdisk9 00cff68379f89f36 vgappl30 active hdisk10 00cff68379f89f7a vgappl31 active hdisk11 00cff68379f89fbb vgappl32 active hdisk12 00cff68379f89ffc vgappl33 active hdisk13 00cff68379f8a046 vgappl34 active hdisk14 00cff68379f8a08b vgappl35 active hdisk15 00cff68379f8a0d1 vgappl36 active hdisk16 00cff6837a2fb38a tempvg active hdisk17 00cff683ad734158 tempvg active hdisk18 00cff6837b91c30d vgappl30 active hdisk19 00cff683d38e1716 swapvg active hdisk20 00cff6830a99978f vgappl30 active hdisk21 00cff6830a999885 vgappl31 active hdisk22 00cff6830a9998f1 vgappl32 active hdisk23 00cff6830a999958 vgappl33 active hdisk24 00cff6830a9999c5 vgappl34 active hdisk25 00cff6830a999a4e vgappl35 active hdisk26 00cff6830a999ace vgappl36 active hdisk27 00cff6830915c025 None
Notare che se rootvg è mirrored l'operazione fallirà per mancanza di spazio; rimuovere mirror prima di procedere:
root@lpar1:/#unmirrorvg rootvg hdisk1 0516-1246 rmlvcopy: If hd5 is the boot logical volume, please run 'chpv -c' as root user to clear the boot record and avoid a potential boot off an old boot image that may reside on the disk from which this logical volume is moved/removed. 0516-1804 chvg: The quorum change takes effect immediately. 0516-1144 unmirrorvg: rootvg successfully unmirrored, user should perform bosboot of system to reinitialize boot records. Then, user must modify bootlist to just include: hdisk0.
Verifichiamo lo stato del mirror :
root@lpar1:/#lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk0 active 981 588 08..00..188..196..196 hdisk1 active 981 981 197..196..196..196..196
OK , adesso rimuovo hdisk1 da rootvg :
root@lpar1:/#reducevg rootvg hdisk1 root@lpar1:/#lsvg -p rootvg rootvg: PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk0 active 981 588 08..00..188..196..196
Un altro problema che potrebbe impedire l'operazione è la presenza di LV con nomi di lunghezza superiore a 12 caratteri
visto che la procedura aggiungerà un prefisso al nome originale dei logical volumes.
root@lpar1:/#smitty alt_clone
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]
* Target Disk(s) to install [hdisk27] +
Phase to execute all +
image.data file [] /
Exclude list [] /
Bundle to install [] +
-OR-
Fileset(s) to install []
Fix bundle to install []
-OR-
Fixes to install []
Directory or Device with images []
(required if filesets, bundles or fixes used)
installp Flags
COMMIT software updates? yes +
SAVE replaced files? no +
AUTOMATICALLY install requisite software? yes +
EXTEND file systems if space needed? yes +
OVERWRITE same or newer versions? no +
VERIFY install and check file sizes? no +
ACCEPT new license agreements? yes +
Customization script [] /
Set bootlist to boot from this disk
on next reboot? no +
Reboot when complete? no +
Verbose output? yes +
Debug output? no +
Attenzione a non selezionare la modifica della bootlist e il reboot when complete .
Selezionando l'output verboso vedremo la lista dei files che vengono copiati nel nuovo disco , inutile.
Alla fine avremo :
root@lpar1:/#lspv hdisk0 00cff683554eac45 rootvg active hdisk1 00cff683554eac7b None hdisk4 00cff683e9f9313f vgappl30 active hdisk2 00cff68379f89cc7 vgappl31 active hdisk3 00cff68379f89dbe vgappl32 active hdisk5 00cff68379f89e28 vgappl33 active hdisk6 00cff68379f89e74 vgappl34 active hdisk7 00cff68379f89eb4 vgappl35 active hdisk8 00cff68379f89ef9 vgappl36 active hdisk9 00cff68379f89f36 vgappl30 active hdisk10 00cff68379f89f7a vgappl31 active hdisk11 00cff68379f89fbb vgappl32 active hdisk12 00cff68379f89ffc vgappl33 active hdisk13 00cff68379f8a046 vgappl34 active hdisk14 00cff68379f8a08b vgappl35 active hdisk15 00cff68379f8a0d1 vgappl36 active hdisk16 00cff6837a2fb38a tempvg active hdisk17 00cff683ad734158 tempvg active hdisk18 00cff6837b91c30d vgappl30 active hdisk19 00cff683d38e1716 swapvg active hdisk20 00cff6830a99978f vgappl30 active hdisk21 00cff6830a999885 vgappl31 active hdisk22 00cff6830a9998f1 vgappl32 active hdisk23 00cff6830a999958 vgappl33 active hdisk24 00cff6830a9999c5 vgappl34 active hdisk25 00cff6830a999a4e vgappl35 active hdisk26 00cff6830a999ace vgappl36 active hdisk27 00cff6830915c025 altinst_rootvg
A questo punto abbiamo il nuovo rootvg (altinst_rootvg) , per accedervi dobbiamo usare il comando alt_rootvg_op.
Ad esempio possiamo "svegliare" il vg :
root@lpar1:/#alt_rootvg_op -W -d hdisk27 Waking up altinst_rootvg volume group ... root@lpar1:/#lsvg -l altinst_rootvg altinst_rootvg: LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT alt_hd5 boot 1 1 1 closed/syncd N/A alt_hd6 paging 16 16 1 closed/syncd N/A alt_hd8 jfs2log 1 1 1 open/syncd N/A alt_hd4 jfs2 8 8 1 open/syncd /alt_inst alt_hd2 jfs2 37 37 1 open/syncd /alt_inst/usr alt_hd9var jfs2 16 16 1 open/syncd /alt_inst/var alt_hd3 jfs2 32 32 1 open/syncd /alt_inst/tmp alt_hd10opt jfs2 64 64 1 open/syncd /alt_inst/opt alt_hd11admin jfs2 2 2 1 open/syncd /alt_inst/admin alt_dumplv0 sysdump 64 64 1 closed/syncd N/A alt_livedump jfs2 4 4 1 open/syncd /alt_inst/var/adm/ras/livedump alt_netbackup jfs2 64 64 1 open/syncd /alt_inst/opt/netbackup alt_ocsinv jfs2 2 2 1 open/syncd /alt_inst/opt/ocsinventory alt_nagios jfs2 2 2 1 open/syncd /alt_inst/opt/nagios alt_logs jfs2 80 80 1 open/syncd /alt_inst/logs
e rimetterlo a dormire :
root@lpar1:/#alt_rootvg_op -S Putting volume group altinst_rootvg to sleep ... forced unmount of /alt_inst/var/adm/ras/livedump forced unmount of /alt_inst/var/adm/ras/livedump forced unmount of /alt_inst/var forced unmount of /alt_inst/var forced unmount of /alt_inst/usr forced unmount of /alt_inst/usr forced unmount of /alt_inst/tmp forced unmount of /alt_inst/tmp forced unmount of /alt_inst/opt/ocsinventory forced unmount of /alt_inst/opt/ocsinventory forced unmount of /alt_inst/opt/netbackup forced unmount of /alt_inst/opt/netbackup forced unmount of /alt_inst/opt/nagios forced unmount of /alt_inst/opt/nagios forced unmount of /alt_inst/opt forced unmount of /alt_inst/opt forced unmount of /alt_inst/logs forced unmount of /alt_inst/logs forced unmount of /alt_inst/admin forced unmount of /alt_inst/admin forced unmount of /alt_inst forced unmount of /alt_inst Fixing LV control blocks... Fixing file system superblocks... root@lpar1:/#lsvg rootvg altinst_rootvg vgappl30 vgappl31 vgappl32 vgappl33 vgappl34 vgappl35 vgappl36 stagevg swapvg root@lpar1:/#lsvg -l altinst_rootvg 0516-010 : Volume group must be varied on; use varyonvg command.
Ora non rimane che eliminare ogni traccia del vg e del disco dalla lpar per spostarlo sulla nuova.
root@lpar1:/#exportvg altinst_rootvg root@lpar1:/#rmdev -dl hdisk27 hdisk27 deleted
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