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Space or DRAM Error During Software Upgrade of a Routing Matrix with a TX Matrix Router
Problem
 | Note: Throughout this document, we use the term TX Matrix router to refer to the switch-card chassis (SCC) and T640 router to refer to the line-card chassis (LCC). |
A routing matrix with a TX Matrix router (scc) and T640 routers (lcc) must have sufficient disk space and DRAM on all Routing Engines for an upgrade of the Junos OS to install successfully. If there is insufficient disk space or DRAM, you might receive a warning indicating that the /var file system is low on free disk space similar to the following:
WARNING: The /var filesystem is low on free disk space. WARNING: This package requires 1075136k free, but there WARNING: is only 666502k available.
To determine the amount of free disk space on the Routing Engine, use the CLI show system storage command. To determine the amount of DRAM available on the Routing Engine, use the CLI show chassis routing-engine command.
Below is sample output showing the two commands.
{backup}
user@host-re1> show system storage
scc-re1:
--------------------------------------------------------------------------
Filesystem Size Used Avail Capacity Mounted on
/dev/ad0s1a 217M 176M 24M 88% /
devfs 1.0K 1.0K 0B 100% /dev
devfs 1.0K 1.0K 0B 100% /dev/
/dev/md0 31M 31M 0B 100% /packages/mnt/jbase
/dev/md1 199M 199M 0B 100% /packages/mnt/jkernel-9.5R2.1
/dev/md3 4.9M 4.9M 0B 100% /packages/mnt/jdocs-9.5R2.1
/dev/md4 55M 55M 0B 100% /packages/mnt/jroute-9.5R2.1
/dev/md5 14M 14M 0B 100% /packages/mnt/jcrypto-9.5R2.1
/dev/md7 2.0G 40K 1.8G 0% /tmp
/dev/md8 2.0G 11M 1.8G 1% /mfs
/dev/ad0s1e 24M 1.5M 21M 7% /config
procfs 4.0K 4.0K 0B 100% /proc
/dev/ad1s1f 25G 2.4G 21G 10% /var
/dev/ad1s1e 24M 1.5M 22M 6% /tmp/.snp3061/mnt
lcc0-re1:
--------------------------------------------------------------------------
Filesystem Size Used Avail Capacity Mounted on
/dev/ad0s1a 220M 186M 16M 92% /
devfs 1.0K 1.0K 0B 100% /dev
devfs 1.0K 1.0K 0B 100% /dev/
/dev/md0 33M 33M 0B 100% /packages/mnt/jbase
/dev/md1 216M 216M 0B 100% /packages/mnt/jkernel-9.6B1.8
/dev/md2 66M 66M 0B 100% /packages/mnt/jpfe-T-9.6B1.8
/dev/md3 4.1M 4.1M 0B 100% /packages/mnt/jdocs-9.6B1.8
/dev/md4 57M 57M 0B 100% /packages/mnt/jroute-9.6B1.8
/dev/md5 15M 15M 0B 100% /packages/mnt/jcrypto-9.6B1.8
/dev/md6 34M 34M 0B 100% /packages/mnt/jpfe-common-9.6B1.8
/dev/md7 2.0G 10.0K 1.8G 0% /tmp
/dev/md8 2.0G 532K 1.8G 0% /mfs
/dev/ad0s1e 24M 44K 22M 0% /config
procfs 4.0K 4.0K 0B 100% /proc
/dev/ad2s1f 34G 21G 11G 66% /var
lcc2-re1:
--------------------------------------------------------------------------
Filesystem Size Used Avail Capacity Mounted on
/dev/ad0s1a 217M 178M 21M 89% /
devfs 1.0K 1.0K 0B 100% /dev
devfs 1.0K 1.0K 0B 100% /dev/
/dev/md0 33M 33M 0B 100% /packages/mnt/jbase
/dev/md1 216M 216M 0B 100% /packages/mnt/jkernel-9.6B1.8
/dev/md2 66M 66M 0B 100% /packages/mnt/jpfe-T-9.6B1.8
/dev/md3 4.1M 4.1M 0B 100% /packages/mnt/jdocs-9.6B1.8
/dev/md4 57M 57M 0B 100% /packages/mnt/jroute-9.6B1.8
/dev/md5 15M 15M 0B 100% /packages/mnt/jcrypto-9.6B1.8
/dev/md6 34M 34M 0B 100% /packages/mnt/jpfe-common-9.6B1.8
/dev/md7 2.0G 8.0K 1.8G 0% /tmp
/dev/md8 2.0G 538K 1.8G 0% /mfs
/dev/ad0s1e 24M 46K 22M 0% /config
procfs 4.0K 4.0K 0B 100% /proc
/dev/ad1s1f 25G 1.3G 22G 5% /var{master}
user@host-re0> show chassis routing-engine
scc-re0:
--------------------------------------------------------------------------
Routing Engine status:
Slot 0:
Current state Master
Election priority Master (default)
Temperature 41 degrees C / 105 degrees F
CPU temperature 43 degrees C / 109 degrees F
DRAM 2048 MB
Memory utilization 21 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 4 percent
Interrupt 0 percent
Idle 96 percent
Model RE-4.0
Serial ID P11123909610
Start time 2009-06-16 13:21:12 PDT
Uptime 21 hours, 19 minutes, 44 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.03 0.06 0.07
Routing Engine status:
Slot 1:
Current state Backup
Election priority Backup (default)
Temperature 39 degrees C / 102 degrees F
CPU temperature 38 degrees C / 100 degrees F
DRAM 2048 MB
Memory utilization 20 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 0 percent
Interrupt 0 percent
Idle 100 percent
Model RE-4.0
Serial ID 211123900273
Start time 2009-06-15 13:38:48 PDT
Uptime 1 day, 21 hours, 2 minutes, 5 seconds
Last reboot reason Router rebooted after a normal shutdown.
lcc0-re0:
--------------------------------------------------------------------------
Routing Engine status:
Slot 0:
Current state Master
Election priority Master (default)
Temperature 46 degrees C / 114 degrees F
CPU temperature 50 degrees C / 122 degrees F
DRAM 2048 MB
Memory utilization 18 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 2 percent
Interrupt 0 percent
Idle 98 percent
Model RE-4.0
Serial ID P11123908065
Start time 2009-06-16 13:20:59 PDT
Uptime 21 hours, 19 minutes, 56 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.05 0.03 0.00
Routing Engine status:
Slot 1:
Current state Backup
Election priority Backup (default)
Temperature 50 degrees C / 122 degrees F
CPU temperature 55 degrees C / 131 degrees F
DRAM 3584 MB
Memory utilization 11 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 0 percent
Interrupt 0 percent
Idle 100 percent
Model RE-A-2000
Serial ID 1000673710
Start time 2009-06-15 13:34:44 PDT
Uptime 1 day, 21 hours, 6 minutes, 8 seconds
Last reboot reason Router rebooted after a normal shutdown.
lcc2-re0:
--------------------------------------------------------------------------
Routing Engine status:
Slot 0:
Current state Master
Election priority Master (default)
Temperature 41 degrees C / 105 degrees F
CPU temperature 42 degrees C / 107 degrees F
DRAM 2048 MB
Memory utilization 18 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 2 percent
Interrupt 0 percent
Idle 98 percent
Model RE-4.0
Serial ID P11123908326
Start time 2009-06-16 13:21:10 PDT
Uptime 21 hours, 19 minutes, 44 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.00 0.00 0.00
Routing Engine status:
Slot 1:
Current state Backup
Election priority Backup (default)
Temperature 41 degrees C / 105 degrees F
CPU temperature 42 degrees C / 107 degrees F
DRAM 2048 MB
Memory utilization 18 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 0 percent
Interrupt 0 percent
Idle 100 percent
Model RE-4.0
Serial ID 212058900119
Start time 2009-06-15 13:37:41 PDT
Uptime 1 day, 21 hours, 3 minutes, 8 secondsSolution
If you find that you need to free up some space, issue the request system storage cleanup command and delete everything that appears in the output. then try the upgrade again.
{master}
user@host-re0> request system storage cleanup
List of files to delete:
Size Date Name
2B Jun 16 12:46 /var/crash/bounds
80.4M Jun 15 14:56 /var/crash/cores/kernel.0.090615.1455
80.4M Jun 15 15:46 /var/crash/cores/kernel.1.090615.1546
80.4M Jun 15 15:58 /var/crash/cores/kernel.2.090615.1558
80.4M Jun 16 12:47 /var/crash/cores/kernel.3.090616.1246
30.6M Jun 15 15:05 /var/crash/cores/vmcore.0.090615.1455.tgz
33.5M Jun 15 16:33 /var/crash/cores/vmcore.1.090615.1546.tgz
35.9M Jun 15 17:52 /var/crash/cores/vmcore.2.090615.1558.tgz
48.0M Jun 16 13:47 /var/crash/cores/vmcore.3.090616.1246.tgz
504B Jun 15 14:55 /var/crash/info.0
504B Jun 15 15:46 /var/crash/info.1
505B Jun 15 15:58 /var/crash/info.2
505B Jun 16 12:46 /var/crash/info.3
716B Jun 15 13:43 /var/log/install.0.gz
1669B Jun 13 18:05 /var/log/install.1.gz
[...Output Truncated...]
201.6K Jun 11 02:27 /var/tmp/jnx-routeservice-9.6I20090611_0926_root.tgz
59.7K Jun 10 09:07 /var/tmp/jnx_ifinfo_sanity.pl.base_test_cfg_66245
59.9K Jun 10 15:19 /var/tmp/jnx_ifinfo_sanity.pl.base_test_cfg_74023
59.7K Jun 11 02:57 /var/tmp/jnx_ifinfo_sanity.pl.base_test_cfg_83419
181.0M Jul 23 2008 /var/tmp/mchassis-install.tgz
59.7K Jun 10 09:07 /var/tmp/orig_z8_cfg_66245
59.9K Jun 10 15:19 /var/tmp/orig_z8_cfg_74023
59.7K Jun 11 02:57 /var/tmp/orig_z8_cfg_83419
Delete these files ? [yes,no] (no) yes | Note: For some DRAM issues, remove any superfluous files from the /root and /tmp directories. |
