Archive
Posts from 2007
Solaris fibre channel management
With the introduction of Solaris 10, storage management has changed considerably. The storage foundation kit is now integrated into the base OS, the leadville driver has been expanded to include HBAs from Emulex, JNI and Qlogic, and the fcinfo utility as well as several mdb DCMDS were added to view fibre channel connectivity information. fcinfo is especially useful, since it provides a tool with the base Operating System to view HBA and connectivity information. The fcinfo utility has two main options…
$ read more →Concert review Buckcherry and Saliva
This past week I continued my quest to see every band live, and ventured out to see Saliva and Buckcherry at a relatively small venue. The music started around 9pm, when the Saliva lead singer came to the stage with one of the coolest mohawks I have seen in quite some time (I think it was colored bright pink). The band wasted no time getting the crowd energized, and cranked out one hit after another. This included their mega hit "Ladies And Gentlemen," as well as "Click Click Boom," "Always," "Your disease," "Survival Of The Sickest," "Broken," and "Raise Up." Each song was filled with passion and a lot of aggression, and you could tell the crowd was loving the music…
$ read more →iSCSI slides
I gave a presentation on the Solaris iSCSI stack at the Atlanta opensolaris users group meeting this evening. If your curious what was discussed, you can look through the slides that were used for the presentation. I would like to thank everyone for coming out, and for being such a great audience. It was a pleasure talking about this super cool topic with everyone!!!
$ read more →Taking IPMP managed interfaces online and offline
I use Solaris IPMP (IP multipathing) on several of my servers to allow them to keep operating in the event that a network interface or switch were to fail. Periodically I need to take IPMP managed interfaces offline, but I need to keep the IP addresses attached to those interface up and operational. Solaris comes with the if_mpadm utility, which provides a simple and straight forward way to take IPMP managed interfaces online and offline. Prior to using the if_mpadm utility, it is useful to check the status of the interface you want to take online or offline…
$ read more →Mounting directories and file systems to more than one location
While reading through the mount(8) manual page on one of my RHEL4 servers this week, I came across the "--bind" option. This nifty option allows you to mount a directory in the file system namespace to a second location. The following example shows how to use this option to mount the directory /home/data to a second location, /opt/data: Once the bind mount is created, /opt/data will look and feel just like /home/data, and will show as a mounted file system when the mount utility is run: This is a nifty option, and saved me having to recreate a file system on one of my servers. :)
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