RHEA-2012:0970 - Product Enhancement Advisory

Topic

An updated scsi-target-utils package that adds two enhancements is now available
for Red Hat Enterprise Linux 6.

Description

The scsi-target-utils package contains a daemon and tools to setup Small
Computer System Interface (SCSI) targets. Currently, software Internet SCSI
(iSCSI) and iSCSI Extensions for RDMA (iSER) targets are supported.

This update adds the following enhancements:

• Previously, scsi-target-utils did not accurately report certain parameters,

such as the native block size of the "direct-store" backing store, lowest
aligned logical block address, and optimal transfer length. This could decrease
performance of iSCSI devices. This update adds support for the "B0 VPD" and
"READ CAPACITY(16)" SCSI commands to match the characteristics of the iSCSI
device to its underlying backing store, which improves performance of the iSCSI
device. (BZ#747510)

• With this update, scsi-target-utils now supports authentication for target

discovery. It may be configured using the "incomingdiscoveryuser" and
"outgoingdiscoveryuser" directives in the "/etc/tgt/targets.conf" file.
Configuration details can be seen in the targets.conf(5) manual page.
(BZ#605925)

All users of scsi-target-utils are advised to upgrade to this updated package,
which adds these enhancements.

Solution

Before applying this update, make sure all previously-released errata relevant
to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red
Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386

Fixes

• BZ - 605925 - RFE: tgtd/scsi-target-utils does not support CHAP for discovery
• BZ - 747510 - automatically expose backstore block size in exported LUN

CVEs

(none)

References

(none)