From the course: Linux System Engineer: iSCSI Storage Area Networks

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iSCSI addressing

iSCSI addressing

From the course: Linux System Engineer: iSCSI Storage Area Networks

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iSCSI addressing

- [Instructor] There are several ways of addressing iSCSI devices on a Trisquel Linux 7. It's important to know the differences as carrying out a destructive action such as formatting could be disastrous if you chose the wrong device. It's important that our addressing scheme is persistent across reboots. It's also useful for the naming scheme to be consistent and lastly easy to use. Devices given an SD number such as SATA, USB, and SCSI usually end up with the same device name after boot up such as /dev/sdb1. However, how these letters and numbers are given out can be complex and may not be 100% reliable. The device major and minor numbers are assigned based on the order in which the devices are detected with /dev/sdb1 being the first partition on the second device. If for any reason a device is scanned out of order, it may end up with a different device name. This could happen because of a slow SCSI adapter that doesn't scan devices quick enough or even a drive that's slow to…

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