Enterprise storage, planning and management

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  • mean time to repair (MTTR)

    Mean time to repair (MTTR) is the average time required to fix a failed component and/or device and return it to production status. 

  • Red Hat Enterprise Linux OpenStack Platform

    Red Hat Enterprise Linux OpenStack Platform is Red Hat's supported distribution of OpenStack. 

  • cache algorithm

    A cache algorithm is a detailed list of instructions that decides which items should be discarded in a computer's cache of information. 

  • soft zoning

    Soft zoning is used to allocate resources and control access in a storage-area network (SAN). 

  • Express Bay

    Express Bay is an externally accessible storage slot that is designed to accept a high-performance PCI Express (PCIe) solid-state drive (SSD), 

  • hard zoning

    Hard zoning is used to allocate resources and control access in a storage-area network (SAN). 

  • direct-attached storage (DAS)

    Direct-attached storage (DAS) is computer storage that is directly attached to one computer or server and is not, without special support, directly accessible to other ones. 

  • read cache

    A read cache is a computer storage component that temporarily keeps a copy of data from a slower permanent storage location in order to accelerate the fulfillment of future requests for the data. 

  • HA storage (high-availability storage)

    High-availability storage (HA storage) is a storage system that is continuously operational or provides at least 99% uptime. 

  • bad block

    A bad block is a damaged area of magnetic storage media (i.e., hard disk) that cannot reliably be used to store and retrieve data.