Suddenly unable to log into vSphere 5.5

[Segz]

I was faced with the following error when attempting to login into vSphere yesterday morning.  No updates/upgrades where performed on the system

503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http16LocalServiceSpecE:0x7f5549785a20] _serverNamespace = /vsphere-client _isRedirect = false _port = 9090)

I restarted the vCenter VM command-line on the ESXi host.  I rebooted the ESXi host.  No success.

I've came across a few articles regarding some steps that can be performed from the VCSA VM; however, I have neither console or SSH access to VCSA.

Is rebuilding VCSA my only option?

Thanks!

-Ron

[Segz · Accepted solution]

Was able to finally gain SSH access to VCSA and discovered and that my root partition was full.  Followed the following article VMware Knowledge Base resolved my issue.

localhost:/ # df -k

Filesystem                           1K-blocks     Used Available Use% Mounted on

/dev/sda3                             11215096 11215096         0 100% /

udev                                   4097004      164   4096840   1% /dev

tmpfs                                  4097004      160   4096844   1% /dev/shm

/dev/sda1                               130888    38236     85894  31% /boot

/dev/mapper/core_vg-core              25794876  1310640  23173928   6% /storage/core

/dev/mapper/log_vg-log                10313016  7787316   2001824  80% /storage/log

/dev/mapper/db_vg-db                  10313016   224196   9564944   3% /storage/db

/dev/mapper/dblog_vg-dblog             5152384   239872   4650780   5% /storage/dblog

/dev/mapper/seat_vg-seat              10313016   666704   9122436   7% /storage/seat

/dev/mapper/netdump_vg-netdump         1024024    17688    954320   2% /storage/netdump

/dev/mapper/autodeploy_vg-autodeploy  10313016   154236   9634904   2% /storage/autodeploy

/dev/mapper/invsvc_vg-invsvc           5152384   168204   4722448   4% /storage/invsvc