With Apple bundling Xsan into Lion and opening up more storage options than before, it seems like time to start exploring alternatives to Promise Vtrak’s for Xsan storage. ActiveStorage makes a very nice RAID chassis and should be shipping metadata controller appliances soon. I’ve discussed both here before and they make for very nice kit. But in order to have an ‘ecosystem’ you really need a little biodiversity. And the Xsan environment needs to become more of an ecosystem and less of a vendor lock-in situation. So another option that I’d like to discuss is the Rork Aurora Galaxy. These little firecrackers have a lot of potential upside: 4 8Gbps…
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Installing Windows Clients for Xsan & StorNext
There are a lot of environments that attach Windows client computers to an Xsan or StorNext filesystem. In the past I’ve looked at using different versions of StorNext to communicate with Xsan, but in this article we’re actually going to take a look at Quantum’s StorNext FX2 client software. Before getting started, you’ll want to have the StorNext media, have the serial number added to the metadata controllers, have the HBA (fibre channel card) installed, have the fibre patched into the HBA, have the IP addresses for the metadata controllers documented and have a copy of the .auth_secret file obtainable from the metadata controllers once they’ve been properly licensed. To…
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Removing A LUN Label in Xsan
In Xsan Admin you can easily label LUNs that are available on your Fibre Channel fabric. Using the cvlabel command, you can also easily label a LUN that isn’t on a Fibre Channel fabric. Labeling a LUN writes data to the LUN, thus allowing Xsan to somewhat mark its territory (insert vivid imagery of an Xsan shaped like a dog taking a whiz on a poor thumb drive). If you then look at that LUN from a Mac OS X system without Xsan installed, the computer will have greyed out options in Disk Utility and will not be able to treat the LUN as a “disk.” You also can’t use…
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Xsanity: Using Removable Media with Xsan
I posted another article on Xsanity. This one started out as an article on how to label LUNs from the command line, but ended up something completely different. It still explains how to do it from the command line, but since I wrote it while flying it ended up being more tailored to doing it on a USB jump drive since they don’t allow me to take an Xserve, Qlogic 9200 and a Promise RAID to my seat on the plane with me. Which is really a shame ’cause I could get SOOOO much done that way. Anyway, the article can be found here.
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How to Use Xsan with iSCSI
Using iSCSI targets with Xsan… Don’t do this one at home kids. It’s just silly and not going to be supported by anyone… But if you are like me then you can do it if you must. So to get started with iSCSI check out this article. When you have a LUN that is connected don’t yet assign it a file system (or if you have partition it back to free space). Now install Xsan but don’t yet create a volume. Once you’re done, you can go ahead and fire up your trusty Terminal app from /Applications/Utilities. Type in cvlabel -l which should show you all your available LUNs. Next,…