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By kkoene at 2010-08-23 14:24
This is really only valid if you are using some kind of multipathing technology or an SVC or SAN of some kind.

for H in `ls /sys/class/fc_host/`
    echo updating $H
    echo 1 > /sys/class/fc_host/${H}/issue_lip
    sleep 1
    echo "- - -" > /sys/class/scsi_host/${H}/scan
    sleep 1
Then run cfgvpath and after that completes run lsvpcfg.

After those commands complete you should be able to do the following:

fdisk <device name or vpath>
create partition using full disk size (usually primary part.)

change id and partition to LVM then run:

pvcreate <pvname>
pvscan to make sure physical volume is there
vgcreate -s 64 <vg_name> /dev/<vpathname>
lvcreate -l <# of extents> -n <full path of vg and lv>
mkfs -j /dev/<vgname>/<lvname>
Then create an entry in /etc/fstab for the filesystem. Once complete with that, you need to run the mkdir command.

mkdir <fs path>
mount <fs>

NOTE: Sometimes the syntax for lvcreate is: lvcreate -L(size) lvname vgname.

Comments and critics are always welcome!


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