Archive for the ‘Xsan’ Category
Setting up CHAP on LeftHand w/ CLI
LeftHand Storage uses the cliq command line for configuring their devices. cliq isn’t necessarily interactive and so we end up needing to specify the username, password and IP of the device with each command (although you can setup a key as well if you’re going to be doing automated tasks). One task that I’ve found [...]
In: Unix, Windows Server, Xsan · Tagged with: admin, assignvolumechap, chap, CLI, cliq, Command line, deletevolume, getLocalVolumes, lefthand, modifyraid, modifyvolume, Password, username, volume
InnerPool Video from Active Storage
In: Xsan · Tagged with: Active Storage, Active Xraid, innerpool, Xsan
Dot Hill with Xsan
The Promise Vtrak is the only officially supported platform that can be used to provide LUNs to an Xsan. Having said that, there are a number of other storage vendors that are supplying LUNs at this point. And while I don’t really want to speak to that it is worth noting that it brings me [...]
In: Xsan · Tagged with: Dot Hill, LUN, Promise, Xsan
Defining MultiSAN
In Xsan 2, MultiSAN was introduced. MultiSAN allows you to assign different sets of primary, secondary and tertiary metadata controllers to volumes. This provides a performance benefit for some environments that have saturated resources on a given metadata controller. However, MultiSAN does not allow you to build separate SANs. All of the volumes are still [...]
In: Mac OS X Server, Xsan · Tagged with: fsm, fsmpm, Mac OS X, metadata, metadata controller, multisan, Xsan
Post at Xsanity on Active Storage
Posted a little article on Xsanity about the new press releases from Active Storage regarding Innerpool and Active Stats. You can find it here: http://www.xsanity.com/article.php/20100415165329925
In: Mac OS X, Mac OS X Server, Mac Security, Xsan · Tagged with: innerpool, Promise, Xsan
Don’t Defrag the Whole SAN
I see a numer of environments that are running routine defragmentation scripts on Xsan volumes. I do not agree with this practice, but given certain edge cases I have watched it happen. When defragmenting a volume, there is no reason to do so to the entire volume. Especially if much of the content is static [...]
In: Xsan · Tagged with: Automation, cvfsck, defrag, grep, Mac OS X, pid, Shell Script, snfsdefrag, Xsan
Isolating iNodes in Xsan cvfsck Output
I’ve noticed a couple of occasions where data corruption in Xsan causes a perceived data loss on a volume. This does not always mean that you have to restore from backup. Given the cvfsck output, you can isolate the iNodes using the following: cat cvfsck.txt | grep *Error* | cut -c 27-36 > iNodeList.txt Once [...]
In: Xsan · Tagged with: cvfsck, cvfsdb, grep, inode, list, Mac OS X, show, Xsan
Uniq Logs
Recently I’ve been looking at a lot of log files. And sorting through them can be a bit of a pain. However, there are some tools out there to help make this process a bit easier. The first of these is sort. If I have a log that has 1,000 lines, while I like to [...]
In: Mac OS X, Ubuntu, Unix, Xsan · Tagged with: Command line, cvlog, grep, Mac OS X, script, sort, uniq, Xsan
Blessing the blessed
The bless command can be used to read your currently blessed operating system in Mac OS X. You can also leverage it to set an operating system in Mac OS X. Don’t ask why, but I recently needed to read what my blessed operating system was and set my blessed operating system to the same [...]
In: Mac OS X, Mass Deployment, Xsan · Tagged with: bless, get startup volume, Mac OS X, set startup volume, Xsan
Disable Spotlight for Xsan Volumes
I’ve seen a number of Xsan environments spewing tons of errors in regards to Spotlight this and Spotlight that. Yup, that is with Spotlight disabled on the volumes. You can use the mdutil command to help with this. If you have two volumes, then the script to do so would be similar to the following [...]
In: Xsan · Tagged with: 2.2, indexing, Spotlight errors, Xsan
