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unable to claim Netapp volumes on Vplex as LUNs are not divisible by 4k
Hello,
I am trying to encapsulate some Netapp LUNs created via Windows.
The error I am getting is "the storage-volume does not have a capacity divisible by the system block size (4K and cannot be claimed."
I tried expanding the volume so that it becomes divisible by 4K, I even tried creating new Netapp volumes divisible by 4 K, but no luck, the new volumes have the same problem whenever I try to claim them.
Please advise.
Thanks
ankur.patel
286 Posts
0
September 12th, 2018 07:00
Have you seen this?
https://support.emc.com/kb/461229
Many years ago a customer created this script for his environment
#!/usr/bin/ksh
#run "netapp_vplex_resize.ksh arrayname lunname" to resize the LUN until it is 4K divisible
#requires extra space in the volume for increased LUN sizes
#requires you to be able to remotely execute commands on the filer through remsh
#you must rediscover the array through VPLEX once resizing is complete.
ARRAY=$1
LUN=$2
COUNT=0
SIZE=$(remsh $ARRAY lun show -v $LUN | grep $LUN | awk '{print $3}' | sed 's/[()]//g')
ORIGSIZE=$SIZE
NEWSIZE=$SIZE
echo "current size is $SIZE"
DIVSIZE=$(echo "$SIZE / 4096" | bc -l)
#echo "LUN divided by 4096 equals $DIVSIZE"
INTERGER=$(echo $DIVSIZE | grep -c 00000000000000000000)
while [[ $INTERGER -eq 0 ]]
do
COUNT=$(( $COUNT + 1 ))
NEWSIZE=$(remsh $ARRAY lun resize $LUN $(( $NEWSIZE + 1 )) | awk '{print $NF}' | sed 's/[()]//g')
DIVSIZE=$(echo "$NEWSIZE / 4096" | bc -l)
echo "new LUN size divided by 4096 equals $DIVSIZE"
INTERGER=$(echo $DIVSIZE | grep -c 00000000000000000000)
done
echo "LUN is divisible by 4096"
echo "$2 added $(( $(( $NEWSIZE - $ORIGSIZE )) / 1048576 )) MB in $COUNT resizes"
echo "$2 added $(( $(( $NEWSIZE - $ORIGSIZE )) / 1048576 )) MB in $COUNT resizes" >> /home/cschm/netapp_vplex_resize.out
I just looped through it for each of the LUNs on the arrays with
for LUN in $(remsh ahnetap002 lun show| awk '{print $1}')
do
/home/cschm/netapp_vplex_resize.ksh ahnetap002 $LUN
Done
And
for LUN in $(remsh ahnetap001 lun show| awk '{print $1}')
do
/home/cschm/netapp_vplex_resize.ksh ahnetap001 $LUN
Done
Mircevski
1 Message
0
May 12th, 2019 08:00
Hi,
I have the same issue. Even though I make sure that the netapp luns are 4k divisible, Vplex complains that they are not 4k divisible.
Were you able so solve the issue ?
This article https://support.emc.com/kb/461229 cannot be opened with my current EMC credentials.
Regards,