1/1/2023 0 Comments Rhel rescan disks![]() To scan for new disks, determine the host bus adapter to which the disk is # ls -l /sys/class/scsi_host/host*/proc_name When you do such changes you have to tell linux that something has been changed. For example adding new disks or increasing the disk size of a hard disk without a reboot. Review the official documentation from the vendors of the respective platforms to confirm the correct usage of these commands.With virtualization it simply possible to change systems within a few mouse clicks. This table is provided as a convenience and should not be regarded as authoritative. Note: Most of the commands below are not Veritas commands and may vary depending on the version of the platform. Table 2: Procedures that can be used to scan for new devices, organized by platform Note: Adding "-f" limits the rescan to new devices. Sets vxconfigd to the "enabled" state, if it is not already enabled.Note: This command does not replace the need to scan for devices using the commands that are provided by the OS. Refreshes the DMP device tree with information drawn from the current system device listings, updating devices that have changed and registering new, previously undiscovered devices. Table 1 - Commands that are used by Storage Foundation to update itself with information about devices that are visible to the OS Command ![]() Third-party multi-pathing drivers ( such as MPxIO and EMC PowerPath ) are not supported and will not work with the new interface. The new enhanced dmpdr tool will only work in connection with Veritas DMP (Dynamic Multi-Pathing). # /usr/lib/vxvm/voladm.d/bin/dmpdr -o refresh To reduce the complexity surrounding the multi-step Dynamic LUN reconfiguration process, Veritas has created a new non-interactive interface to aid the provisioning and removal of devices. When adding and removing physical LUNs that are connected to a server, it is necessary to run many steps. Since the writing of this article, Veritas dynamic multipathing environments benefit from the "dmpdr" utility This article provides information about the commands and procedures that may be used to scan for disks. ![]() When adding new disks to a Storage Foundation configuration, separate scans are required by the operating system (OS) and by the Storage Foundation application. ![]()
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