[SOLVED] 'ceph-volume lvm zap' zfs drive issue

RobFantini

Famous Member
May 24, 2012
2,008
102
133
Boston,Mass
for drives that were part use with zfs, ceph-volume lvm zap /dev/sdX did not prepare drive for pve: ceph > osd create osd. no unused drives were found

this old script fixed the issue:
Code:
DISK=$1

if [ "$1" = "" ]; then
 echo "Need to supply a  dev name like  sdg . exitting"
 exit 0
fi


echo " make sure this is the correct disk "
echo $DISK

echo " you will end up with NO partition table when this procedes .  example:

Disk /dev/$1  doesn't contain a valid partition table

Press enter to procede , or ctl-c to exit "

read x

dd if=/dev/zero of=/dev/$DISK bs=512 count=50000

# 2014-08-08 need for 3ware end of disk has stuff
#-----------
LBAS=$(cat /sys/block/$DISK/size)
dd if=/dev/zero of=/dev/$DISK bs=512 count=1024
dd if=/dev/zero of=/dev/$DISK bs=512 seek=$(($LBAS-1024)) count=1024
 
Our tooling 'pveceph osd create/destroy' will take care of this annoyance.
 
Hi,

I had a strange issue on a "future ceph volume" that already have lvm volume :

pveceph osd create /dev/sdf
/dev/sdg: open failed: No medium found
/dev/sdg: open failed: No medium found
device '/dev/sdf' is already in use

any idea

best regards,

Virttom007
 
no medium found and open and already in use - check this
Makefile:
mount|  grep sdf

I asssume it is mounted. umount and try again

if that fails umount and zap /dev/sdf


if you are sure you want to kill any data on /dev/sdf then zap the disk. AFAIR there used was a ceph zap disk command around but with a quick check i do not see it. look for it or ask others. otherwise this script would work, save it at zap-disk , and chmod +x nd rn with ./zap-disk sdf
Code:
DISK=$1

if [ "$1" = "" ]; then
 echo "Need to supply a  dev name like  sdg . exiting"
 exit 0
fi


echo " make sure this is the correct disk "
echo $DISK

echo " you will end up with NO partition table when this procedes .  example:

Disk /dev/$1  doesn't contain a valid partition table

Press enter to procede , or ctl-c to exit "

read x

dd if=/dev/zero of=/dev/$DISK bs=512 count=50000

# 2014-08-08 need for 3ware end of disk has stuff
#-----------
LBAS=$(cat /sys/block/$DISK/size)
dd if=/dev/zero of=/dev/$DISK bs=512 count=1024
dd if=/dev/zero of=/dev/$DISK bs=512 seek=$(($LBAS-1024)) count=1024
 
Hi rob,

I did with success zap the drive (with a combinatio of vgremove / pvremove and sfdisk before zapping). But I did have a sdg message (and no sdg harddrives) that is annoying.
 

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