RHBA-2011:1049 - Bug Fix Advisory

Topic

An updated scsi-target-utils package that fixes multiple bugs and adds one
enhancement is now available for Red Hat Enterprise Linux 5.

Description

The SCSI target package contains the daemon and tools to setup iSCSI and iSER
targets.

This update fixes the following bugs:

• Prior to this update, there was a bug in the "tgt-setup-lun" command that

caused a target to be deleted if an invalid Logical Unit Number (LUN) was added.
The problem has been resolved in this update so that "tgt-setup-lun" now works
as expected and the target is not deleted. (BZ#695867)

• Prior to this update, there was a bug in the iscsid and tgtd daemons that

caused the system log to be filled with the "iscsid: semop down failed" and
"tgtd: semop up failed" error messages while starting and stopping the
respective services in a particular order. The bug has been fixed in this update
so that no error messages from iscsid and tgtd are now written in the system
log. (BZ#676804)

• Prior to this update, there was a problem with using very large (more than 2TB

in size) hard disks with iSCSI. As a result, the iSCSI initiator failed with
"very big device. try to use READ CAPACITY(16)" and "unsupported sector size"
error messages. This bug has been fixed in this update so that using such hard
disks with iSCSI now works as expected. (BZ#674394)

• Prior to this update, the iSCSI initiator on Windows Server 2003 was not able

to use Logical Unit Numbers (LUNs) provided by the tgtd daemon on Linux. It did
not recognize simultaneous Linux SCSI Target Framework (STGT) LUNs provided by
the same STGT target. This bug has been fixed in this update so that the iSCSI
initiator is now able to use the LUNs as expected. (BZ#560534)

As well, this update adds the following enhancement:

• This update adds support for a read-only target by setting the "--params

readonly=1" option with the "tgtadm" command, or by setting the "readonly 1" and
"allow-in-use yes" options in the /etc/tgt/targets.conf file. (BZ#695870)

All users requiring scsi-target-utils should upgrade to this updated package,
which fixes these bugs and adds this enhancement.

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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Resilient Storage for x86_64 5 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 5 ppc
• Red Hat Enterprise Linux Resilient Storage for x86_64 5 ia64
• Red Hat Enterprise Linux Resilient Storage for x86_64 5 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 5 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 5 i386

Fixes

• BZ - 560534 - Windows iscsi initiator cannot use LUNs from multiple targets exported through tgt without reboot
• BZ - 674394 - [5.6] Problem using very large disks with iscsi but works with 5.5 scsi-target-utils
• BZ - 676804 - iscsid: semop down failed; tgtd: semop up failed
• BZ - 695867 - [tgt-setup-lun] - adding inaccurate LUN to existing target will remove the target itself
• BZ - 695870 - RFE: Enforce read-only target

CVEs

(none)

References

(none)