Thursday, January 31, 2008

Dell Server OMSA Reporting

I used to think that Dell OpenManage Server Administrator (OMSA) was worthless. I was wrong. I apologize.

I've found for me it's the best way to do actual hardware monitoring. Although there are probably "Official Dell Best Practices" on using and implementing OMSA, I've just gone and installed it and then accessed the machine via my web browser (https://hostname:1311). However, today I found you can actually get some good stuff via the command line using "omreport". Dell's command line documentation for it is located at

http://support.dell.com/support/edocs/software/svradmin/5.2/en/cli/html/report.htm#wp1068065

For instance, I can find out really quick what the status is of my hardware, except for disk/storage related hardware.

# /opt/dell/srvadmin/oma/bin/omreport chassis
Health

Main System Chassis

SEVERITY : COMPONENT
Ok : Fans
Ok : Intrusion
Ok : Memory
Ok : Power Supplies
Ok : Processors
Ok : Temperatures
Ok : Voltages
Ok : Hardware Log

Also, someone wrote a nagios plugin that executes this as well.

http://www.nagiosexchange.org/DELL_Server.61.0.html?&tx_netnagext_pi1%5Bp_view%5D=432

To check storage related, you can run the following command.

# /opt/dell/srvadmin/oma/bin/omreport storage pdisk controller=0
List of Physical Disks on Controller PERC 4e/Di (Embedded)

Controller PERC 4e/Di (Embedded)
ID : 0:0
Status : Ok
Name : Physical Disk 0:0
State : Online
Failure Predicted : No
Progress : Not Applicable
Type : SCSI
Capacity : 68.24 GB (73274490880 bytes)
Used RAID Disk Space : 68.24 GB (73274490880 bytes)
Available RAID Disk Space : 0.00 GB (0 bytes)
Hot Spare : No
Vendor ID : FUJITSU
Product ID : MAW3073NC
Revision : 5803
Serial No. : DAL3P6200PR8
Negotiated Speed : 320
Capable Speed : 320
Manufacture Day : Not Available
Manufacture Week : Not Available
Manufacture Year : Not Available
SAS Address : Not Available

ID : 0:1
Status : Ok
Name : Physical Disk 0:1
State : Online
Failure Predicted : No
Progress : Not Applicable
Type : SCSI
Capacity : 68.24 GB (73274490880 bytes)
Used RAID Disk Space : 68.24 GB (73274490880 bytes)
Available RAID Disk Space : 0.00 GB (0 bytes)
Hot Spare : No
Vendor ID : FUJITSU
Product ID : MAW3073NC
Revision : 5803
Serial No. : DAL3P6200PK3
Negotiated Speed : Not Available
Capable Speed : Not Available
Manufacture Day : Not Available
Manufacture Week : Not Available
Manufacture Year : Not Available
SAS Address : Not Available

My Controller ID is 0. This can be found by running "omreport storage controller". Storage commands can be found on

http://support.dell.com/support/edocs/software/svradmin/5.2/en/cli/html/storage.htm#wp1082304


Friday, January 25, 2008

Clean cabling in the datacenter

Often, clean cabling in the datacenter is neglected; especially by yours truly. It's a hassle, it takes time, and usually you cut corners because you're trying to get other tasks done. However, I was sent this blog post that shows good cabling. I may have re-think about investing the time to do cabling right.

http://royal.pingdom.com/?p=240

Monday, January 14, 2008

RE: iPhone MAC address post

I ran into this post today from TUAW, and there is now an iPhone app that can switch your MAC address.

http://www.tuaw.com/2008/01/14/tuaw-responds-mac-addresses-on-the-iphone/

I guess that would make it more difficult to keep users from using the corporate wireless network with iPhones, unless you can implement a 802.1 solution.

What I've done at work is only allow wireless into our Guest VLAN. If they need to access corporate assets (printers, shared drives, etc.), then they need to use VPN after connecting to the
wireless network.