Author Archive

Exchange no email flow January 1st 2022


01 Jan

Update Jan 3rd:
Microsoft has release a solution for this problem.

Looks like Microsoft has dropped us a present for New Year. This morning I found that no emails are flowing.
Quick look at event logs was showing FIPFS as a culprit. FIPFS Event id 5300

The FIP-FS “Microsoft” Scan Engine failed to load. PID: 15952, Error Code: 0x80004005. Error Description: Can’t convert “2201010003” to long.

The temporary workaround is to disable Anti malware scanning and restart Transport service. The script to disable Anti malware scanning is located in your Exchange script directory. From Exchange Management Shell do:

cd $exscripts
.\Disable-AntimalwareScanning.ps1
Restart-Service MSExchangeTransport

To confirm that it was disabled run:
Get-TransportAgent "Malware Agent"

The email should start flowing

Happy New Year!!!

Nexus: %VMS-1-CONN_SSL_NOAUTH: SSL AUTHENTICATION after upgrading Nexus 1000v


16 Jun

After upgrading Nexus 1000V VSM to version 4.2(1)SV2(2.1a) you start recieving ‘%VMS-1-CONN_SSL_NOAUTH1: SSL AUTHENTICATION failure.‘ message in the console every couple minutes:

N1Kv# 2014 Jun 1 18:34:48 N1Kv %VMS-1-CONN_SSL_NOAUTH: SSL AUTHENTICATION failure.
2014 Jun 1 18:37:48 N1Kv %VMS-1-CONN_SSL_NOAUTH1: SSL AUTHENTICATION failure.
2014 Jun 1 18:40:48 N1Kv %VMS-1-CONN_SSL_NOAUTH: SSL AUTHENTICATION failure.
2014 Jun 1 18:43:47 N1Kv %VMS-1-CONN_SSL_NOAUTH1: SSL AUTHENTICATION failure.
2014 Jun 1 18:46:47 N1Kv %VMS-1-CONN_SSL_NOAUTH: SSL AUTHENTICATION failure.

This is expected behavior because of a new feature that was added in Nexus 1000v 4.2(1)SV2(2.1a) version:
vCenter Server Certificate Validation
The Cisco Nexus 1000V VSM can validate the certificate presented by vCenter Server to authenticate it. The certificate may be self-signed or signed by a Certificate Authority (CA). The validation is done each time the VSM connects to the vCenter Server. If the certificate authentication fails, a warning is generated but the connection is not impaired. This is an optional feature.

To get rid of the warning please generate a valid SSL certificate for vCenter server.

Nexus: Pre-upgrade check failed. Return code 0x40930062 (free space in the filesystem is below threshold).


16 Jun

While trying to upgrade Nexus 5000 series switch I ran into following issue:

Pre-upgrade check failed. Return code 0x40930062 (free space in the filesystem is below threshold).

Pre-upgrade check failed. Return code 0x40930062 (free space in the filesystem is below threshold).

Switch has enough free:

Enough free space

Enough free space

Look at install logs to identify where the problem is by typing:
show system internal log install details | include space

show system internal log install details | include space

show system internal log install details | include space

As you can see the problem is because /var/tmp is bellow the threshold.
To identify what is  taking space in /var/tmp type:
show system internal dir /var/tmp (more…)

UCS: Cisco FN – 63812


13 Jun

Cisco has release a field notice FN – 63812 on 4th of June for their servers that are using Seagate hard drives.
According to Cisco some Seagate drives with specific level of firmware might not respond to requests.
There is a list of drives and instructions how to identify these drives. Unfortunately if you have C220 M2 server with integrated controller like LSI 1064E the instruction are not going to work as the drives are not visible in CIMC.

In CIMC there is nothing listed under Storage tab

CIMC/Storage

CIMC/Storage

In CLI you cannot scope to storage adapter as non exists

show storageadapter

show storageadapter

(more…)

UCS: Unable to communicate with Flexible Flash controller


28 May

For all of you who are using Cisco UCS C220 M3 server and Flexible Flash controller with SD card beware that there is a bug in firmware prior to 1.5(3a)

The problem shows up as timeout error for FlexFlash controller. The interesting part is even though there is a problem with the FlexFlash, CIMC still is showing that overall Server Status as good:
Once you log-in into CIMC you will not see that there is a problem:

2

No Errors

but once you click on Storage tab you’ll get error message:

Error: Unable to communicate with Flexible Flash controller: operation ffCardsGet, status ERROR_TIMEOUT

In the logs you’ll see: (more…)

UCS: Chassis Decommission is stuck


27 Dec

After trying to decommission chassis the task never finishes. It gets stuck at Erasing chassis identity task:
2

FSM is stuck at 8% with error 403, Error Leaving fabric port-channel for port 1/16 (the port can be different)
3

Trying to Acknowledge or Remove Chassis is not successful.
1 (more…)

UCS: Running UCS Server Configuration Utility (SCU) Diagnostic on C series servers


18 Dec

UCS Server Configuration Utility (SCU) allows user to configure the server and also run diagnostics tests.

Do the following to run SCU diagnostics tests:

1. Download SCU from Cisco.com
2. Login to CIMC of the server and map the SCU ISO image
1
3. Restart the server and wait until it boots to SCU
2
4. Accept the License Agreement
3
5. In SCU expand Diagnostic Tools, select Quick Tasks and choose the test you want to run Quick or Comprehensive.
4
6. Confirm
5
7. You can see the status of the tests under Tests Summary and the results under Test log Summary.
6
8. Once finished click on Reboot button
7

UCS: After firmware upgrade B230 M1 blade is failing discovery at 4%


15 Dec

After upgrading B230 M1 blade it gets stuck in discovery at 4% and is showing following errors:

no connection to MC endpoint
1

Error retrieving Server Params-MC Error(-6): Connection is closing

2

No DIMMs present

3

The errors can be rotating but it is stuck at 4%.

1. Check Firmware versions and see if all are as expected.
3_5

2. Reset CIMC and after this is done Reacknowledge the server.
3. Check the firmware versions of the blade again. The Running Board Controller version is set to 00000000
4

4. Activate the Board Controller with correct version and wait until activation is finished.
5

5. Reacknowledge the server

UCSPE 2.2(1bPE1) is out


15 Dec

UCSPE 2.2(1bPE1) is out. Get it here.

UCS: Blade is stuck in EFI Shell, service profile association stuck


11 Dec

After associating service profile to a blade it gets stuck in EFI Shell and association can not complete.
The KVM is showing EFI Shell
1

FSM status is stuck on Configure Apply Config
2

The problem could be because the service profile does not have all the required configuration. Have a look at Status under General tab to see what is the error.
3

In this case there were no MACs or WWPNs defined. CNA cards must have these defined as they do not have them burned in.

 

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