Hard disk showing 123% used

[Altheus]

I have a check that is showing 123% usage on a large (>4TB) disk

Critical
E:\ Label:Shared Disk Serial Number 58745973: 123%used(-16731736MB/-13631618MB) (>95%) : CRITICAL

Can you please tell me how to make this check behave?

[scottwilkerson]

What plugin/agent are you using for this check?

[Altheus]

I'm using

check_xi_service_snmp_win_storage! -C RMCPUB --v2c -m ^E: -w 80 -c 95 -f

as the agent.

[scottwilkerson]

These volumes may be too large to be manages by the version of SNMP you have on the remote system, I would highly recommend using an Agent such as NCPA for this monitoring if possible

To confirm this we could run the following to get the detailed results with verbose output:

Code: Select all

/usr/local/nagios/libexec/check_snmp_storage.pl -H HOSTADDRESS -G -C RMCPUB --v2c -m ^E: -w 80 -c 95 -f -v

ref: https://support.nagios.com/forum/viewto ... =10#p87367

[Altheus]

Thanks Scott the output is:

login as: martinp
[email protected]'s password:
Last login: Mon Jan 20 10:29:08 2020 from 172.31.20.98
[martinp@4rdr-vs ~]$ /usr/local/nagios/libexec/check_snmp_storage.pl -H HOSTADDR ESS -G -C RMCPUB --v2c -m ^E: -w 80 -c 95 -f -v
Alarm at 15
SNMP v2c login
ERROR: Unable to resolve UDP/IPv4 address 'HOSTADDRESS'.
[martinp@4rdr-vs ~]$ /usr/local/nagios/libexec/check_snmp_storage.pl -H 172.31.1 20.16 -G -C RMCPUB --v2c -m ^E: -w 80 -c 95 -f -v
Alarm at 15
SNMP v2c login
Filter : ^E:
OID : 1.3.6.1.2.1.25.2.3.1.3.3, Desc : D:\ Label:IR2_SSS_X64FREV_EN-US_DV5 Seri al Number ca57887
OID : 1.3.6.1.2.1.25.2.3.1.3.5, Desc : Virtual Memory
OID : 1.3.6.1.2.1.25.2.3.1.3.2, Desc : C:\ Label: Serial Number 82d5868c
OID : 1.3.6.1.2.1.25.2.3.1.3.4, Desc : E:\ Label:Shared Disk Serial Number 5874 5973
Name : E:\ Label:Shared Disk Serial Number 58745973, Index : 4
OID : 1.3.6.1.2.1.25.2.3.1.3.6, Desc : Physical Memory
OID : 1.3.6.1.2.1.25.2.3.1.3.1, Desc : A:\
storages selected : 1
1.3.6.1.2.1.25.2.3.1.6.4 : -2138397629
1.3.6.1.2.1.25.2.3.1.4.4 : 8192
1.3.6.1.2.1.25.2.3.1.5.4 : -1744847105
Descr : E:\ Label:Shared Disk Serial Number 58745973
Size : -1744847105
Used : -2138397629
Alloc : 8192
Perf data : 'E:\_Label:Shared_Disk__Serial_Number_58745973'=-16315GB;-10650;-126 47;0;-13312
E:\ Label:Shared Disk Serial Number 58745973: 123%used(-16315GB/-13312GB) (>95% ) : CRITICAL | 'E:\_Label:Shared_Disk__Serial_Number_58745973'=-16315GB;-10650;- 12647;0;-13312
[martinp@4rdr-vs ~]$ /usr/local/nagios/libexec/check_snmp_storage.pl -H 172.31.120.16 -G -C RMCPUB --v2c -m ^E: -w 80 -c 95 -f -v
Alarm at 15
SNMP v2c login
Filter : ^E:
OID : 1.3.6.1.2.1.25.2.3.1.3.3, Desc : D:\ Label:IR2_SSS_X64FREV_EN-US_DV5 Serial Number ca57887
OID : 1.3.6.1.2.1.25.2.3.1.3.5, Desc : Virtual Memory
OID : 1.3.6.1.2.1.25.2.3.1.3.2, Desc : C:\ Label: Serial Number 82d5868c
OID : 1.3.6.1.2.1.25.2.3.1.3.4, Desc : E:\ Label:Shared Disk Serial Number 58745973
Name : E:\ Label:Shared Disk Serial Number 58745973, Index : 4
OID : 1.3.6.1.2.1.25.2.3.1.3.6, Desc : Physical Memory
OID : 1.3.6.1.2.1.25.2.3.1.3.1, Desc : A:\
storages selected : 1
1.3.6.1.2.1.25.2.3.1.6.4 : -2138397629
1.3.6.1.2.1.25.2.3.1.4.4 : 8192
1.3.6.1.2.1.25.2.3.1.5.4 : -1744847105
Descr : E:\ Label:Shared Disk Serial Number 58745973
Size : -1744847105
Used : -2138397629
Alloc : 8192
Perf data : 'E:\_Label:Shared_Disk__Serial_Number_58745973'=-16315GB;-10650;-12647;0;-13312
E:\ Label:Shared Disk Serial Number 58745973: 123%used(-16315GB/-13312GB) (>95%) : CRITICAL | 'E:\_Label:Shared_Disk__Serial_Number_58745973'=-16315GB;-10650;-12647;0;-13312
[martinp@4rdr-vs ~]$

Regards.

[scottwilkerson]

Code: Select all

1.3.6.1.2.1.25.2.3.1.6.4 : -2138397629
1.3.6.1.2.1.25.2.3.1.4.4 : 8192
1.3.6.1.2.1.25.2.3.1.5.4 : -1744847105

As I suspected, SNMP on this system is returning negative numbers which does happen frequently in SNMP with very large disks, there isn't going to be any way to get correct results like this.

I would recommend using an agent such as NCPA or NSClient++, or you could use WMI with the Wizard after the setup in the doc below

https://assets.nagios.com/downloads/nag ... ios-XI.pdf