Category / VMware ESXi

  • So you are trying to install *nix OS and during setup you receive an error stating:¬†no /dev/disk/by-id This is due to the new method *nix machines are now using to address hard disks. before each disk was handled as /dev/sd(x)(n) for example /dev/sda1 or /dev/sdb2 Now disks are handled by addressing them UUID for example: […]

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  • Disable Delayed ACK in VMware ESXi for iSCSI: A lot of system administrators I encounter are faced with various levels of performance issues most of them are related to host resources over commitment and some are because of poor I/O performance. If you are using iSCSI protocol¬†for your main storage communication then you might have […]

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  • As anyone who has ever called DELL for technical support regarding a server DELL tech support will always 100% of the time will ask you for DSET logs, now while this is very easily accomplished on a physical server since you can simply run the DSET collector and send them the logs in a virtual […]

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  • Thin provisioning an OK idea for test a terrible idea in production: I see more and more system administrators utilize thin provisioning in their production environment(s), some use it as a means to conserve storage utilization, some use it for storage over commitment. But most simply do not understand how thin provisioning works and why […]

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