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OS and Applications

OS and Applications
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Results for Dell PowerEdge Linux
  • Faster Block Device Performance with NVMe PCIe SSD based dm-cache on RHEL 7

    dm-cache (Device Mapper cache) is a device mapper target to improve performance of a block device (e.g., a spindle device ) HDD by dynamically migrating some of its data to a faster, smaller device (SSD). NVMe based PCIe SSD will act as the cache device. For more details about the NVMe based PCIe SSD...
  • NVMe on RHEL7

    Posted on behalf of Lakshmi Narayanan Durairajan (Lakshmi_Narayanan_Du@dell.com) What is NVMe? NVM Express [NVMe] or Non-Volatile Memory Host Controller Interface Specification (NVMHCI), is a specification for accessing solid-state drives (SSDs) attached through the PCI Express (PCIe) bus. NVM is...
  • Secure Boot overview

    You may be hearing a lot of clamor about secure boot these days in Linux and Windows operating systems. This set of blogs will explain about secure boot and how it is extended to Linux; specifically RHEL7. I’ll also provide some insights in to Linux ‘trusted kernel Boot’ and implications...
  • Using Systemd for Automated System Recovery

    With the inclusion of support for watchdog hardware, systemd can now perform the function of a watchdog daemon Linux. On Dell PowerEdge systems, this hardware could either be the chipset watchdog timer built into the platform’s chipset (like Intel ICH9) or Dell iDRAC’s IPMI compliant BMC...
  • Set OS information in iDRAC via IPMI

    On Dell PowerEdge systems, in addition to providing comprehensive information about the system, the Integrated Dell Remote Access Controller (iDRAC) provides useful information about the operating system running on the host. Of these, there are three pieces of information that is made available that...
  • Hacking Fedora install ISOs

    While working on testing some minor installer changes, I found myself wanting a simple way to modify the Fedora install media without having to rebuild the install ISO from scratch each time. I found some guides for doing this on older versions of Fedora and on live ISOs, but none really worked for the...