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

[RobFantini]

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:

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

 

[Alwin]

Our tooling 'pveceph osd create/destroy' will take care of this annoyance.

 

[RobFantini]

ok thanks..

 

[RobFantini]

Our tooling 'pveceph osd create/destroy' will take care of this annoyance.

there have been drives not seen by pve web page due unusual circumstances. zapping 1ST allows pve to see the drive. as happened just now.

 

[virttom]

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

 

[RobFantini]

no medium found and open and already in use - check this

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

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

 

[virttom]

ok THX for this.

my main concern here is the reference to a /dev/sdg that neither exist nor existed ? why and how to fix it ?

 

[RobFantini]

sdf or sdg ?
run the mount command i wrote above

 

[virttom]

DISK=$1

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

 

[virttom]

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.