Snapshot Changes in XtremIO X2

I've written previously about how Snapshots (and snapshot refresh) works in XtremIO. With XtremIO X2 we changed the way a few of the snapshot-related concepts work in order to simplify things, as well as to add some additional use cases that were not possible previously.…

#Tags: xtremio, snapshot

Querying Performance Data from the XtremIO REST API

(If you're not already famaliar with using the XtremIO REST API, then I'd suggest reading my series on using it first) XtremIO has a very powerful API for accessing performance data from the XMS, but it can be a little difficult to get your head around. The REST API Guide…

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XtremIO X1 and VMware - APD v’s PDL

In general, when a Storage Controller is shutting down for any reason, XtremIO X1 will send a "Logical Unit Not Supported" SCSI response code (0x5/0x25) in response to any requests received by that storage controller from a connected host. This could be just a single SC shutdown…

#Tags: xtremio, vmware, APD, PDL

Hidden City Ticketing

Recently there has been a lot of talk around a method of saving on airfares called "Hidden City Ticketing". Whilst Hidden City Ticketing can save money, there are a number of catches when it comes to using it - catches that can cause extreme difficulties and extra cost…

#Tags: travel, hidden-city, airlines

REST API Scripting with curl

I've stated previously that using curl for accessing the XtremIO REST API (or any API!) isn't ideal as it's difficult to handle errors returned by the API. Below is a BASH function that can help with this. It takes the options for a REST API call, and returns an error…

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XtremIO Snapshots and Veritas Volume Manager

It's been 20 years almost to the day since I started using Veritas Volume Manager, or Sun Enterprise Volume Manager (SEVM) as the re-branded version from Sun was called at the time. SEVM used to be included free with all Sun SPARCstorage Array 110 model arrays (an external proprietary fiber-connected…

#Tags: xtremio, vxvm, snapshot