I just got a strange problem on one of my ESXI 5.1 hosts.
It is not possible to login with the Vsphere/ESXI client to the host ( SSH works )
According to the hostd.log there is not any more space left on the device, but when I run vdf -h there is 98 % space available.
df -h shows more then 50% free on the volumes...
Affected ESXI hostd.log:
----
pam_per_user: create_subrequest_handle(): doing map lookup for user "root"
pam_per_user: create_subrequest_handle(): creating new subrequest (user="root", service="system-auth-generic")
PAM unable to dlopen(/lib/security/$ISA/pam_unix.so): /lib/security/../../lib/security/pam_unix.so: failed to map segment from shared object: No space left on device
PAM adding faulty module: /lib/security/$ISA/pam_unix.so
---
While on my other ESXI host:
---
pam_per_user: create_subrequest_handle(): doing map lookup for user "root"
pam_per_user: create_subrequest_handle(): creating new subrequest (user="root", service="system-auth-generic")
Accepted password for user root from 192.168.0.43
---
I found something this KB: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=204346...
Where the workaround is to restart wsman, but It did not work for me 
Anybody have any ideas? Cause I am all out now...
