Category Archives: Dell

Dell PowerEdge Servers | Internal Dual SD Module (IDSDM) Failure

We are running Dell R620/630 servers with “Internal Dual SD Module” (IDSDM) for the VMware ESX installation.
Unfortunately SD card 1 recently developed a fault.
As the IDSDM is configured in a fail-over SD1 copies to SD2 therefore we had to swap the cards before performing the rebuild.

It is important to note a few IDSDM module behaviors: IDSDM White Paper

Mirror State Stored on the IDSDM module

The SD cards mirror state, along with the Disabled or Mirror mode for modular servers, is stored on the IDSDM module itself. This means that it is possible to move an IDSDM module between two systems and preserve the mirror; the BIOS will read the states from the cards during boot up and will reflect the state of the card in setup.

Master SD Card

The module design allows that either SD card slot can be the master; in the event of a tie between the two cards, then SD1 is picked as the master. For example, if two new SD cards are installed in the IDSDM while AC power is removed from the system, SD1 is considered the Active or master card in the mirror. SD2 is the backup card, and all file system IDSDM writes will go to both cards, but reads will occur only on SD1. If at any time SD1 fails or is removed, SD2 will automatically become the Active (master) card. The IDSDM module should not be serviced while AC power is present.

 


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Dell PowerEdge Servers | iDRAC Interface & Connection Issues

Configuring iDRAC IP (From Windows)

If you want to configure the iDRAC while in Windows the best option is to install “Dell Open Manage Server Administrator” this will allow you to open the web interface and assign the iDRAC IP. The default iDRAC IP is “192.168.0.120” so unless you have a system on this subnet to connect you will need to use another method.

  • Default OMSA address: https://localhost:1311/
  • Authentication is using a standard Windows Administrator username/password without the “domain\”
  • The iDRAC options are displayed under: System -> Main System Chassis -> Remote Access

If you are configuring iDRAC outside windows the default login is:

  • Default Username: root
  • Default Password: Calvin

Unable to connect to iDRAC IP:

If you are unable to connect to the iDRAC via HTTP/Web Interface even though it is responding to ICMP (Ping) request it most likely needs a kick! or a reboot (of just that component) Best option is to putty into it.

Resets/Reboots iDRAC:

  • racadm racreset (Reset)
  • racadm -r <ip address> -u <username> -p <password> racreset(Passthough Credentials)
  • racadm -r <ip address> -i racreset (Prompt for Credentials)


Resets/Reboots iDRAC (Factory Defaults):

  • racadm racresetcfg (Reset)
  • racadm -r <ip address> -u <username> -p <password> racresetcfg (Passthough Credentials)
  • racadm -r <ip address> -i racresetcfg (Prompt for Credentials)

Unable to connect to iDRAC “Maximum number of user sessions is reached”

I tried to SSH to the IP using putty (Method Above) but got the same error.

In order to resolve this I used the following command from another server which had Dell Open Manage installed.

racadm -r 192.168.1.2 -u root -p Passw0rd racreset soft
racadm -r 192.168.1.2 -i racreset soft

Downloads:

Reference:

Dell OpenManage | Windows Server & ESXi

I’ve been doing a lot of more work with Dell hardware and configuration of OpenManage. This ties in with my configuration of Dell OpenManage with VMWare ESXi 5.1 & 5.5 and SNMP monitors. See Vmware ESXi Host for info 

Here is some info on the installation:

Dell OpenManage Server Administrator (Windows):

Dell OpenManage Server Administrator vSphere Installation Bundle for ESXi:

Dell OpenManage Server Administrator Install Guide: http://en.community.dell.com/techcenter/extras/m/white_papers/20402167.aspx

This offers a full guide on how to install OpenManage on ESXi. I’ve taken this process and tried to simplified it so a script does the work for you on.

Dell VMWare packages:

Installing Dell OpenManager Server Administrator via CLI (No Prompts):

  1. Download/Install: VMware vSphere CLI 5.1
  2. Download VIB file (links above)
  3. Upload VIB file into your VM datastore root (.zip format). Note filename for script
  4. Change varibles and run script below.
  5. Process should will notify of errors / completion, this usually takes a few minutes to complete.
@echo off
set hostname=UK-ESX01.domain.com
set dsname=UK-ESX01-DS
set password=Password123
set vibname=OM-SrvAdmin-Dell-Web-7.2.0-6870.VIB-ESX51i.zip
set user=root
"C:\Program Files (x86)\VMware\VMware vSphere CLI\bin\esxcli.exe" --server %hostname% --username %user% --password %password% software vib install -d /vmfs/volumes/%dsname%/%vibname%
echo Task Run | Please see Status above.
pause

This script will output results similar to this…

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Note: The VIB filename must match the name in the datastore.