J-web Problem ( Request System Storage Cleanup)

Hello,

First of all sorry for my bad english.

In srx 650 firewall. I use cluster firewall. I opened j-web interface in browser. But device gave  error message.

J-Web is unable to access user information as the device file system is full. Please clear the storage from CLI using (request system storage cleanup) to continue with J-web access.

I applied request system storage cleanup command in two cluster device.  But problem persisted. After that I cleaned to /cf/var/log and /cf/var/tmp folders on two device. But problem persisted. After that I clean to /cf/var/transfer/config/ folder. But problem persisted. 

- Active node0 -

root@SRX-1% df -ah
Filesystem Size Used Avail Capacity Mounted on
/dev/ad0s1a 620M 148M 423M 26% /
devfs 1.0K 1.0K 0B 100% /dev
/dev/md0 20M 996K 17M 5% /junos
/cf/packages 620M 148M 423M 26% /junos/cf/packages
devfs 1.0K 1.0K 0B 100% /junos/cf/dev
/cf/usr 620M 148M 423M 26% /junos/cf/usr
/cf/boot 620M 148M 423M 26% /junos/cf/boot
/dev/md1 407M 407M 0B 100% /junos
/cf 20M 996K 17M 5% /junos/cf
devfs 1.0K 1.0K 0B 100% /junos/dev/
/cf/packages 620M 148M 423M 26% /junos/cf/packages1
/cf/boot 620M 148M 423M 26% /junos/cf/boot
/cf/usr 620M 148M 423M 26% /junos/cf/usr1
procfs 4.0K 4.0K 0B 100% /proc
/dev/bo0s3e 49M 374K 44M 1% /config
/dev/bo0s3f 616M 615M -48M 108% /cf/var
/dev/md2 336M 26M 283M 8% /mfs
/cf/var/jail 616M 615M -48M 108% /jail/var
/cf/var/log 616M 615M -48M 108% /jail/var/log
devfs 1.0K 1.0K 0B 100% /jail/dev
/dev/md3 63M 4.0K 58M 0% /mfs/var/run/utm
/dev/md4 1.8M 4.0K 1.7M 0% /jail/mfs

-Passive node 1-

root@SRX-2% df -ah
Filesystem Size Used Avail Capacity Mounted on
/dev/ad0s1a 620M 148M 423M 26% /
devfs 1.0K 1.0K 0B 100% /dev
/dev/md0 20M 994K 17M 5% /junos
/cf/packages 620M 148M 423M 26% /junos/cf/packages
devfs 1.0K 1.0K 0B 100% /junos/cf/dev
/cf/usr 620M 148M 423M 26% /junos/cf/usr
/cf/boot 620M 148M 423M 26% /junos/cf/boot
/dev/md1 407M 407M 0B 100% /junos
/cf 20M 994K 17M 5% /junos/cf
devfs 1.0K 1.0K 0B 100% /junos/dev/
/cf/packages 620M 148M 423M 26% /junos/cf/packages1
/cf/boot 620M 148M 423M 26% /junos/cf/boot
/cf/usr 620M 148M 423M 26% /junos/cf/usr1
procfs 4.0K 4.0K 0B 100% /proc
/dev/bo0s3e 49M 260K 45M 1% /config
/dev/bo0s3f 616M 226M 341M 40% /cf/var
/dev/md2 336M 46M 263M 15% /mfs
/cf/var/jail 616M 226M 341M 40% /jail/var
/cf/var/log 616M 226M 341M 40% /jail/var/log
devfs 1.0K 1.0K 0B 100% /jail/dev
/dev/md3 63M 4.0K 58M 0% /mfs/var/run/utm
/dev/md4 1.8M 4.0K 1.7M 0% /jail/mfs

I didnt solve this problem. Do you have any suggestion. 

Best regards.