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Static drive mapping using Open Compute Windmill with CentOS 6.4 and the Open Compute Open Vault (Knox Unit) JBOD
In my previous post about Installing CentOS on the Open Compute Windmill servers, all of the testing was done and completed without using the OCP Knox Unit. Once connected, it routinely caused drive mapping issues. For instance, /dev/sda would become /dev/sdb, /dev/sdo or /dev/sdp at reboot. Causing the server to hang at boot since it […]
Tags: CentOS, Knox Unit, OCP, Open Compute, opencompute
Posted in Cloud, Knox Unit, Linux, MegaCLI, OCP, Open Compute, Open Vault, OpenCompute, Storage | No Comments »
Open Compute Windmill + Open Compute Open Vault hangs at booting from local disk fix
Working through installing CentOS 6.4, ESXi and others, I started running into issues where the systems would run their PXE installations just fine, then end up hanging at booting from local disk afterwards… As it turns out, the systems we’re having issues trying to boot to /dev/sda when /dev/sda was not always where the OS […]
Tags: Knox Unit, OCP, Open Compute, Open Vault
Posted in Cloud, Knox Unit, Linux, Open Compute, Open Vault, OpenCompute, Virtualization, vmware | No Comments »
Open Compute Open Vault Knox Unit Drive Identification
Trying to find a failed drive that does not have a red light on it can be quite challenging with the Open Vault Knox Unit(s) since the drives/slots are not labeled. After looking around the interweb’s and reading the Open Compute Project Open Vault Storage Specification I found the diagram indicating which drive is which. […]
Tags: Knox Unit, OCP, Open Compute, Open Vault
Posted in Cloud, Knox Unit, Linux, MegaCLI, Open Compute, Open Vault, OpenCompute, Storage, Virtualization | No Comments »
MegaCLI working examples cheat sheet
MegaCLI is a pain… a real pain. I’m not a fan of the syntax, it’s not easily readable, did I say it was a pain? Well, our OCP Knox Units are connected via the LSI MEGARAID SAS 9286CV-8E (SGL) controller, so I’ve been using MegaCLI quite a bit lately. Here is a collection of my working […]
Tags: Knox Unit, KnoxUnit, LSI, MegaCLI, OCP, Open Compute, opencompute
Posted in Cloud, Open Compute, OpenCompute, Virtualization | 13 Comments »