Dell EqualLogic PS6210XS EqualLogic Host Integration Tools for Linux Version 1 - Page 2

New in This Release, Known Issues and Usage Constraints, Known Issues

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New in This Release The following features are new in HIT/Linux version 1.7: • Support for RHEL Server 7.5 • Compatibility with PS Series firmware version 10.0.3 • Support for importing EqualLogic storage to PowerStore Known Issues and Usage Constraints This section describes known issues and usage constraints in this software release. Known Issues Known issues reported in HIT/Linux version 1.7 include the following items: A Warning Message is Displayed When you run pvs, vgs, and lvs Commands for Physical/Logical Volumes and Volume Groups During the HIT/Linux 1.7 installation, the lvm.conf file is updated with the filter [ "r|^/dev/ignore_eql/.*|" ]. When you run pvs, vgs, and lvs commands for physical/logical volumes and volume groups, the boot device /dev/sd[x] is not ignored. The following warning message is displayed: WARNING: duplicate PV 2oAd2IBdphLl04rmsQFJAS1w4c3q92n1 is being used from both devices /dev/eql/68-hit15 and /dev/sdb Found duplicate PV 2oAd2IBdphLl04rmsQFJAS1w4c3q92n1: using /dev/eql/68-hit15 not /dev/sdb Using duplicate PV /dev/eql/68-hit15 from subsystem DM, ignoring /dev/sdb To resolve this issue, modify the lvm.conf file with the filter [ "r|^/dev/ignore_eql/.*|" , "r|/dev/sd|"] to exclude the boot device. The value of x represents the sd device, if the boot device is sda then the value of x is a. Red Hat Enterprise Linux 7.4 Does not Support On-Demand Thin-Provisioning During On-Demand Thin-Provisioning, the eqlvolume utility first attempts to perform a FITRIM ioctl operation to each mount point. Red Hat Enterprise Linux 7.4 does not support On-Demand Thin-Provisioning and displays the following error message: Does not support the FITRIM ioctl or "mount -o discard" SAN HQ Installation Intermittently Fails on 32-Bit Windows Systems When installing SAN HQ on a supported 32-bit Windows operating system, the installation might abort and display an error message. If this happens, rerun the installation. It might take a few times to complete a successful installation. RSWCLI Fails to Create CHAP User Name and Password When Initializing an Array RHEL 7.x servers, and Oracle Linux 7.x UEK3 servers, HIT/Linux initializes the array but fails to create a CHAP user name and password when you specify the ˗˗chap-user and ˗˗chap-secret parameters. Data Center Bridging Limitations of Some Switches Certain 10 Gb network switch models do not fully support DCB for Dell EqualLogic PS Series arrays. Running in such a requirement could result in alerts being reported by the array and incorrect failure of RWSCLI initialization due to an unspecified DCB VLAN ID. As a workaround, disable DCB on your network switch. See the following Technical White Paper for additional information: http://en.community.dell.com/techcenter/storage/w/wiki/ 4355.configuring-dcb-with-equallogic-sans.aspx Kernel Memory Requirements When connecting to many iSCSI volumes from a 32-bit server, allocations by the storage and network layers might exhaust the kernel's physical memory pool (also referred to as Low Memory). To resolve this issue, determine how much of this memory pool has been used by looking at the LowTotal and LowFree values in / proc/meminfo. Dell recommends using a 64-bit operating system installation for large configurations so that the kernel can directly access more than 1 GB of RAM. Renamed HIT/Linux Volume Does Not Appear in ehcmcli Output When you the enter the ehcmcli status command, the volume name displayed is generated from the iSCSI target name. The iSCSI target name is not changed if you rename an existing HIT/Linux volume. As a result, ehcmcli status continues to report the original 2 Dell EqualLogic Host Integration Tools for Linux Version 1.7 Release Notes

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New in This Release
The following features are new in HIT/Linux version 1.7:
•
Support for RHEL Server 7.5
•
Compatibility with PS Series firmware version 10.0.3
•
Support for importing EqualLogic storage to PowerStore
Known Issues and Usage Constraints
This section describes known issues and usage constraints in this software release.
Known Issues
Known issues reported in HIT/Linux version 1.7 include the following items:
A Warning Message is Displayed When you run pvs, vgs, and lvs Commands for Physical/Logical Volumes and Volume Groups
During the HIT/Linux 1.7 installation, the
lvm.conf
file is updated with the filter
[ "r|^/dev/ignore_eql/.*|" ]
. When you run
pvs
,
vgs
, and
lvs
commands for physical/logical volumes and volume groups, the boot device
/dev/sd[x]
is not ignored. The
following warning message is displayed:
WARNING: duplicate PV 2oAd2IBdphLl04rmsQFJAS1w4c3q92n1 is being used from both
devices /dev/eql/68-hit15 and /dev/sdb
Found duplicate PV 2oAd2IBdphLl04rmsQFJAS1w4c3q92n1: using /dev/eql/68-hit15 not /dev/sdb
Using duplicate PV /dev/eql/68-hit15 from subsystem DM, ignoring /dev/sdb
To resolve this issue, modify the
lvm.conf
file with the filter
[ "r|^/dev/ignore_eql/.*|" , "r|/dev/sd<x>|"]
to exclude
the boot device. The value of
x
represents the
sd
device, if the boot device is
sda
then the value of
x
is
a
.
Red Hat Enterprise Linux 7.4 Does not Support On-Demand Thin-Provisioning
During On-Demand Thin-Provisioning, the
eqlvolume
utility first attempts to perform a
FITRIM ioctl
operation to each mount point.
Red Hat Enterprise Linux 7.4 does not support On-Demand Thin-Provisioning and displays the following error message:
Does not support the FITRIM ioctl or "mount -o discard"
SAN HQ Installation Intermittently Fails on 32-Bit Windows Systems
When installing SAN HQ on a supported 32-bit Windows operating system, the installation might abort and display an error message. If this
happens, rerun the installation. It might take a few times to complete a successful installation.
RSWCLI Fails to Create CHAP User Name and Password When Initializing an Array
RHEL 7.x servers, and Oracle Linux 7.x UEK3 servers, HIT/Linux initializes the array but fails to create a CHAP user name and password
when you specify the
˗˗chap-user
and
˗˗chap-secret
parameters.
Data Center Bridging Limitations of Some Switches
Certain 10 Gb network switch models do not fully support DCB for Dell EqualLogic PS Series arrays. Running in such a requirement could
result in alerts being reported by the array and incorrect failure of RWSCLI initialization due to an unspecified DCB VLAN ID.
As a workaround, disable DCB on your network switch.
See the following Technical White Paper for additional information:
4355.configuring-dcb-with-equallogic-sans.aspx
Kernel Memory Requirements
When connecting to many iSCSI volumes from a 32-bit server, allocations by the storage and network layers might exhaust the kernel’s
physical memory pool (also referred to as Low Memory).
To resolve this issue, determine how much of this memory pool has been used by looking at the
LowTotal
and
LowFree
values in
/
proc/meminfo
. Dell recommends using a 64-bit operating system installation for large configurations so that the kernel can directly
access more than 1 GB of RAM.
Renamed HIT/Linux Volume Does Not Appear in ehcmcli Output
When you the enter the
ehcmcli status
command, the volume name displayed is generated from the iSCSI target name. The iSCSI
target name is not changed if you rename an existing HIT/Linux volume. As a result,
ehcmcli status
continues to report the original
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Dell EqualLogic Host Integration Tools for Linux Version 1.7 Release Notes