Chapter 1. Package Updates
134
• The
tg3
driver has been updated to version 3.96. This update corrects problems with sluggish
performance (on systems with BCM5704 NICs) and adds full support for Broadcom® 5785 NICs.
(
BZ#481715
984
BZ#469772
985
)
1.110.9.10. Storage Driver Updates
Driver updates for Storage devices
• The SCSI tape driver (st) has been enhanced with support for the Suppress Incorrect Length
Indicator (SILI) bit in variable block mode. If SILI is set, reading a block shorter than the byte count
does not result in
CHECK CONDITION
. The length of the block is determined using the residual
count from the HBA. Avoiding the REQUEST SENSE command for every block speeds up some
applications considerably. The SILI bit is set to off by default. It must only be set this if the tape drive
supports SILI and the HBA correctly returns transfer residuals.
Note
The current version of the mt-st management utility does not have a keyword for the
SILI bit. It must be set explicitly with:
mt -f /dev/nst0 stsetoptions 0x4000
BZ#457970
986
.
• The
bnx2
driver now supports iSCSI. The
bnx2i
driver will access the
bnx2
driver through the
cnic
module to provide iSCSI offload support. (
BZ#441979
987
and
BZ#441979
988
)
Note
The
bnx2i
version included in this release does not support IPv6.
• The
md
driver has been updated to provide support for
bitmap merging
. This feature eliminates the
need for full resync when performing data replication. (
BZ#481226
989
)
• The
scsi
driver now includes the upstream
scsi_dh_alua
module. This adds explicit
asymmetric
logical unit access
(ALUA) support with this release. To utilize the
scsi_dh_alua
module when
using
dm-multipath
, specify
alua
as the
hardware_handler
type in
multipah.conf
.
(
BZ#482737
990
)
Note
For EMC Clariion devices, using only
scsi_dh_alua
or
dm-emc
alone is supported.
Using both
scsi_dh_alua
and
dm-emc
is not supported.
• A bug in the retry logic of the
scsi
driver is now fixed. This bug made it possible for some failovers
to execute properly in multipathed environments.(
BZ#489582
991
)
Summary of Contents for ENTERPRISE 5.4 RELEASE NOTES
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