The directory in Branch devices/Mid range devices to which we can refer to maintain the upgrade images and confirm the space of a certain folder are both explained in this article.
Customers frequently enquire about which folder to check to see if they have enough space on their SRX devices during an upgrade.
You can determine how much storage space you have by issuing the following command: user@host> show system storage Filesystem Size Used Avail Capacity Mounted on /dev/da0s1a 2.4G 369M 1.9G 16% / devfs 1.0K 1.0K 0B 100% /dev /dev/md0 20M 11M 6.7M 63% /junos /cf/packages 2.4G 369M 1.9G 16% /junos/cf/packages devfs 1.0K 1.0K 0B 100% /junos/cf/dev /dev/md1 1.2G 1.2G 0B 100% /junos /cf 20M 11M 6.7M 63% /junos/cf devfs 1.0K 1.0K 0B 100% /junos/dev/ /cf/packages 2.4G 369M 1.9G 16% /junos/cf/packages1 procfs 4.0K 4.0K 0B 100% /proc /dev/bo0s3e 185M 74K 170M 0% /config /dev/bo0s3f 2.1G 1.7G 219M 89% /cf/var >>>> Need to check available capacity in this folder /dev/md2 1.0G 90M 859M 10% /mfs /cf/var/jail 2.1G 1.7G 219M 89% /jail/var /cf/var/log 2.1G 1.7G 219M 89% /jail/var/log devfs 1.0K 1.0K 0B 100% /jail/dev /dev/md3 1.8M 4.0K 1.7M 0% /jail/mfs For TVP platform/bracnh devices: user@host> show system storage node 0 node0: -------------------------------------------------------------------------- Filesystem Size Used Avail Capacity Mounted on /dev/gpt/junos 4.0G 735M 3.0G 20% /.mount tmpfs 5.7G 64K 5.7G 0% /.mount/tmp tmpfs 643M 352K 642M 0% /.mount/mfs /dev/gpt/config 1.5G 84K 1.4G 0% /.mount/config /dev/gpt/var 57G 131M 52G 0% /.mount/var >>>>>>>>>>>> Need to check available capacity in this folder host_corefiles 379G 872M 359G 0% /.mount/var/crash/corefiles host_volatile 125G 4.0K 125G 0% /.mount/var/log/host host_log 379G 872M 359G 0% /.mount/var/log/hostlogs host_traffic_log 379G 872M 359G 0% /.mount/var/traffic-log host_local 379G 872M 359G 0% /.mount/var/db/host host_aamwd 379G 872M 359G 0% /.mount/var/db/aamwd host_geoip 379G 872M 359G 0% /.mount/var/db/geoip host_secinteld 379G 872M 359G 0% /.mount/var/db/secinteld host_app_disk 9.0G 2.3G 6.2G 27% /.mount/var/install_disk