DISK/LVM Commands AIX HP-UX LINUX(RedHat) SOLARIS(VxVM) Filesystem table /etc/filesystems /etc/fstab /etc/fstab /etc/vfstab Free disk blocks df -k bdf df -k df -k Device listing lsdev -C /sbin/ioscan cat /proc/devices sysdef Disk information bootinfo -s hdisk# diskinfo /dev/rdsk/c#t#d# cat /proc/scsi/scsi0/sda/model format -d c#t#d# format>current format>inquiry Disk Label ispv -l hdisk# pvdisplay -v /dev/dsk/C#t#d# fdisk -l prtvtoc LVM Concepts Partition logical extents logical extents sub disk Volume logical volume logical volume Volume Plex Volume group volume group volume group disk group Journal Filesystem type jfs vxfs ext3 vxfs Default volume group /dev/rootvg /dev/vg00 /dev/vx/dsk/rootdg Display volume group lsvg -l rootvg vgdisplay -v vg00 vgdisplay -v vxprint -l -g rootdg Modify physical volume chpv pvchange pvchange vxdisk Prepare physical disk mkdev -c disk -l hdisk# pvcreate pvcreate vxprint -dl List phycical volume lspv pvdisplay pvdisplay vxprint -dl Remove disk from volume group reducevg vgreduce vgreduce vxdg rmdisk Move logical volumes to another physical volumes migratepv pvmove pvmove vxassist move Create volume group mkvg vgcreate vgcreate vxdg init Remove volume group vgremove vgremove vxdg destroy Volume group availability chvg varyonvg varyoffvg vgchange vgchange vxdg set Restore volume group vgcfgrestore vgcfgrestore vxconfigrestore Exports volume group exportvg vgexport vgexport vxdg deport Imports volume group importvg vgimport vgimport vxdg import Volume group listing lsvg vgscan vgscan vxdg list Change logical volume characteristics chlv lvchange lvchange vxedit set List logical volume lslv lvdisplay lvdisplay vxprint -vl Make logical volume mklv lvcreate lvcreate vxassist make Extend logical volume extendlv lvextend lvextend vxassist growto Reduce logical volume lvreduce lvreduce vxassist shrinkto Remove logical volume rmlv lvremove lvremove vxedit rm Prepare boot volumes bootlist -m normal lvlnboot lilo vxbootsetup Remove boot volumes lvrmboot Extend File system chfs -a size=# /mt extendfs /dev/vg00/lv0l8 fsadm -F vxfs -b{LE * 1024} /mt resize2fs resize_reiserfs vxresize fsadm -F vxfs -b {block#} /mt Reduce/Splic mirrors rmlvcopy lvsplit lvsplit vxassist remove mirror Merge mirrors lvmerge lvmerge Create mirrors mklv -c 2 lvcreate -m 1 vxassist mirror Add mirrors mklvcopy lv2 lvextend -m 1 vxassist mirror Create striped volumes mklv -u 3 -S 64K lvcreate -i 3 -l 64 lvcreate -i 3 -l 64 vxassist make vol 100mb layout=raid5 System recovery tape mksysb -i /dev/rmt0 /opt/ignite/bin/make_recovery Backup savevg -i rootvg fbackup tar cvf /dev/rst0/ vxdump Restore restvg frecover tar xvf /dev/rst0 vxrestore |
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