37.2. Resizing an iSCSI Logical Unit

download PDF
After modifying the online logical unit size, re-scan the logical unit to ensure that the system detects the updated size. To do this for iSCSI devices, use the following command:
# iscsiadm -m node --targetname target_name -R
Replace target_name with the name of the target where the device is located.


You can also re-scan iSCSI logical units using the following command:
# iscsiadm -m node -R -I interface
Replace interface with the corresponding interface name of the resized logical unit (for example, iface0). This command performs two operations:
  • It scans for new devices in the same way that the command echo "- - -" > /sys/class/scsi_host/host/scan does (refer to Chapter 36, Scanning iSCSI Targets with Multiple LUNs or Portals).
  • It re-scans for new/modified logical units the same way that the command echo 1 > /sys/block/sdX/device/rescan does. Note that this command is the same one used for re-scanning fibre-channel logical units.
Red Hat logoGithubRedditYoutubeTwitter


Try, buy, & sell


About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.