Ask the Experts

Ask the Experts

Data center server infrastructure and OSes

• How is RHEL in the cloud different than in the data center?

  Implementing RHEL in the cloud isn't exactly the same as using cloud technology in the data center, especially when addressing swap and support concerns.  Continue Reading

• What are the options for log management in Linux?

  Linux administrators should use syslog and systemd-journald together for smart log analysis. But there are also open source log management tools to consider.  Continue Reading

• Are hyper-converged infrastructure appliances my only HCI option?

  Preconfigured hyper-converged appliances aren't your only option anymore. Software-only and build-your-own hyper-converged infrastructure have unique pros and cons.  Continue Reading

• What Linux storage benchmarking tools are best?

  Several tools and commands can come in handy to storage admins looking to benchmark I/O performance on Linux systems. But not all benchmarking tools are created equal.  Continue Reading

• SUSE Linux Enterprise Real Time boosts app performance

  Some organizations require real-time support for critical applications that run on Linux. What are some options to achieve that on a SUSE distribution?  Continue Reading

• How can I prevent data loss during a Linux distribution upgrade?

  It's important to prevent data loss during a Linux OS upgrade. How can partitions or disk drives help IT teams meet that goal?  Continue Reading

• How do I convert CPU hours to MIPS for mainframe capacity planning?

  For better mainframe capacity planning, how do I convert CPU hours to MIPS? And is there a way to calculate the relationship between MIPS and MSUs?  Continue Reading

• Should I make a storage LUN for each server?

  In some scenarios, more than one LUN per server makes sense. In others, it's better to maintain a one-to-one ratio. So which is better?  Continue Reading

• What is the best SSD for server storage improvement?

  Should data centers use SAS- or PCIe-based on-server flash devices? What options are out there for SSDs on servers?  Continue Reading

• How do you verify a HA server or cluster is working?

  I want to ensure server high availability in my production IT environment. Is it better to test server HA and risk disruption, or trust in the systems' reliability?  Continue Reading

• What can I do to gain Java skills and leave mainframe programming?

  I have two years of experience in mainframe technology, currently working as a mainframe developer. I want to change to Java technology.  Continue Reading

• Do I need another VM host server?

  Operations manager Adam Fowler explains the many factors that determine a VM host server's ability to increase its workload and whether you need to buy additional equipment for your VMs.  Continue Reading

• How expandable or configurable is a white box server?

  A white box server typically comprises standardized parts in a no-frills system configuration. Will they work with GPUs or handle upgrades well?  Continue Reading

• How should I spec our new server hardware configuration?

  We are a SaaS Web provider and operate a private cloud in a colo. We are slowly switching from VMs to containers. How do we spec the best hardware for this private cloud?  Continue Reading

• Help! I deleted a Linux boot partition

  I deleted a partition on my Linux system, but I still see a boot menu. How do I re-install GRUB2 and not lose data?  Continue Reading