Preventive Service Planning
This document provides information about limitations and known issues that you might encounter when you use IBM® Spectrum Control™ V5.3.2
This document contains the following sections:
- Support links and Documentation
- Installation, Upgrade, and Configuration
- General IBM Spectrum Control issues
- EMC Support Issues
- Language Related issues
- Cognos Analytics
- Documentation updates and corrections
- Browser issues
Support links and Documentation
To access all of the support documentation, including alerts and APARs, go to the IBM Support Portal.
For information about the devices that are supported by IBM Spectrum Control, see the Supported Hardware, Products and Platforms Interoperability Matrix Links at http://www.ibm.com/support/docview.wss?uid=swg21386446
IBM Spectrum Control Knowledge Center: http://www.ibm.com/support/knowledgecenter/SS5R93_5.3.2/com.ibm.spectrum.sc.doc/tpc_kc_homepage.html
PDF guides for IBM Spectrum Control: http://www.ibm.com/support/knowledgecenter/SS5R93_5.3.2/com.ibm.spectrum.sc.doc/fqz0_r_printable_pdf_files.html
For a list of the known issues with the IBM Spectrum Control support for Hitachi Data Systems Virtual Storage Platform, see http://www.ibm.com/support/docview.wss?uid=swg21667294
Product licenses for IBM Spectrum Control
IBM Spectrum Control V5.3.2 offers product licenses with differing functionality to meet your storage management needs. For information about these licenses, see http://www.ibm.com/support/knowledgecenter/SS5R93_5.3.2/com.ibm.spectrum.sc.doc/fqz0_r_product_packages.html
Installation, Upgrade, and Configuration
SSLv3 disabled by default
Before you upgrade to IBM Spectrum Control 5.3.2 or later, read and understand the information in this security bulletin: Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect Tivoli Storage Productivity Center October 2014 CPU
SSLv3 (the legacy SSL protocol) has been disabled by default once you upgrade to Tivoli® Storage Productivity Center 5.2.5 and later releases. To maintain compatibility between Tivoli Storage Productivity Center and storage systems or devices that support only SSLv3, you must upgrade the storage systems and devices to a level that provides TLS support (if available) or manually enable SSLv3 in Tivoli Storage Productivity Center using a script after you upgrade. Information about using the script to enable SSLv3 is provided in the link in the security bulletin.
The Supported Hardware, Products and Platforms Interoperability Matrix Links support pages have been updated to reflect known compatibility considerations related to this security update.
Related Information: Security Bulletin: Multiple vulnerabilities impact DS8000 HMC
Direct upgrade from IBM Spectrum Control V5.2.12 to IBM Spectrum Control V5.3.2 is not supported.
Direct upgrade from IBM Spectrum Control V5.2.12 to IBM Spectrum Control V5.3.2 is not supported. If you are currently at 5.2.12, upgrade to another release less then 5.3.2 and then you will be able to upgrade to 5.3.2.
IBM Spectrum Control V5.3.2 installation might use an incorrect common user password set
During a new installation of IBM Spectrum Control V5.3.2, the common user password might be set incorrectly after you leave the Configure the Database repository page. To avoid this problem, click only OK to complete the Configure the Database Repository page, do not click Previous. If you do accidentally click Previous, it's recommended you cancel out of your installation and start again from the beginning to avoid potential installation problems.
IBM Spectrum Control V5.3.2 installation may appear to hang at Database component upgrade while database tables are cleaned up and migrated
When upgrading Spectrum Control V5.2.11 or earlier to 5.2.16 or later, some customers may experience a long duration of the upgrade where it appears to hang while database tables are cleaned up and migrated. This is a known limitation, and is a required migration step that (depending on your database size) may take a long time to complete. It is a one-time only clean up process, and will not be experienced at the next upgrade of Spectrum Control.
You can review the log files to determine if your upgrade is undergoing this database clean and migration process: In traceTPCInstall.log look near the end of the log file, there would be an executing SQL statement similar to one of these:
"SET INTEGRITY FOR T_RPT_HOST_KEYS ..." or "REFRESH TABLE T_RPT_HOST_KEYS ..."
And the last lines in the log file during the process would be similar to this:
"... INFO com.ibm.tpc.install.frontend.ia.actions.ProgressBarUpdater setPercentageComplete Seconds complete = ..."
IBM Spectrum Control V5.3.2 installation might fail during the Storage Resource agent installation
During the IBM Spectrum Control installation, the Storage Resource agent installation might time out, causing the product installation to fail.
To resolve this issue:
1. Edit the tpcsra.xml file in the installation directory. The default installation directories are
Windows™: C:\Program Files\IBM\TPC\config\install\tpcsra.xml
2. Change <property name="sra.timeout" value="600000" /> to <property name="sra.timeout" value="1200000" />.
3. Save your changes.
4. Start the IBM Spectrum Control installation program again and resume the Storage Resource agent installation.
A generic Storage Resource agent probe error may be a registration problem / GUID mismatch
A generic Storage Resource agent (SRA) probe error may occur when sending data to the server, with the following in the SRA probe log:
STA0109I Probe completed successfully
STA0249I Sending results to server
AGT0306E Failed to send Probe complete status to server, for Agent in /opt/IBM/TPC
STA0251E Results not saved
To check if this problem is caused by a registration problem or GUID mismatch, review the Data Server logs (TPC\data\log\TPCD_0000xx.log) for the following:
SRV0040E: No agent is registered under machine identifier XX.XX.X.XX (GUID: XXXxxXXXXXXXXXXXxxxxxxxxxXXXXXXX)
GEN0100E: Error processing request from host <XX.XX.X.XX >, for service <Scheduler>, request(3, 1)
To resolve this issue manually register the SRA again so the GUID matches. Register the SRA by running this command on the SRA host:
<SRA_install_location>/agent/bin/Agent -notify register -serverName <server_name>
Following Spectrum Control server upgrade, the Storage Resource agents may lack the Upgrade action
Immediately following a Spectrum Control server upgrade, the SRAs will have the Agent State of "Upgrade needed", but may lack the option to start the SRA upgrade. Once a probe has been run on the SRA the option to upgrade will be available. Simply wait for the scheduled probes to occur, or (to speed up the process) initiate probes of the SRAs, and then upgrade each to the current version.
For information on upgrading SRAs, see https://www.ibm.com/support/knowledgecenter/SS5R93_5.3.2/com.ibm.spectrum.sc.doc/fqz0_t_configuration_upgrade_data_agent.html
Context Root Not Found in 5.3.2 on RedHat 7
On RedHat 7, DB2 and Spectrum Control's web server are configured to start at the same time on boot up. If DB2, for whatever reason, takes significantly longer to start than the Spectrum Control web server, the user will see a 'Context Root Not Found' page when trying to load the Spectrum Control web UI. Restarting the webserver after DB2 has fully started will resolve the issue until the next reboot. To fix the issue across reboots, do the following:
1.) Edit /usr/lib/systemd/system/webWLP.service and add the bolded lines:
Description=IBM Spectrum Control Web Server
2.) Execute the following command as root:
# systemctl daemon-reload
This also assumes that the user has implemented this fix for DB2 autostart on RedHat 7:
General IBM Spectrum Control issues
APAR IT24763: Adding or modifying the connection information for an IBM FlashSystem V9000
When adding or modifying the connection information, be sure to use the correct credentials for the FlashSystem V9000: the connection information for the V9000 control nodes.
Probe of a FlashSystem V9000 will fail if connection credentials were for the internal FlashSystem 900 module rather than providing connection information for the V9000 control nodes.
The reported Spectrum Control probe error is: CMMVC7205E The command failed because it is not supported
Spectrum Control can only manage the control nodes of a V9000 cluster, it cannot manage the backend Flashsystem module.
HDS back-end storage devices behind an SVC shows as "not monitored"
IBM support worked with Hitachi support and this is the answer from Hitachi:
We have identified the root cause and are working on new SVP SMI-S Provider code to fix the issue.
Details: When IBM SMI-S Spectrum Control version 126.96.36.199 sends query “HITACHI_StorageProcessorSystem”, the
Controller ID on DKC1 side that the SVP SMI-S provider calculates was incorrect; so IBM SMI-S Spectrum Control
version 188.8.131.52 does not receive the port information for DKC1 side correctly from the SVP.
Unfortunately there is no workaround at present. The permanent fix will be to upgrade to the new code.
You can see the status of this APAR here: http://www.ibm.com/support/docview.wss?uid=swg1IT25032
Submitting 2 Tiering jobs concurrently may not complete
When submitting 2 tiering jobs to run at the same time or overlap, they may stall and fail to complete. Some optimization tasks may complete correctly, but at some point the tasks may hang. There are no errors displayed, and the logs indicate that the jobs are still running, however once they stall no further tasks are updated or completed. This can happen for the first tiering job or for both.
The work around is submitting one tiering job at a time, and waiting for it to complete before submitting another tiering job.
Information about resources that use the iSCSI protocol is not shown in IBM Spectrum Control
IBM Spectrum Control does not collect iSCSI port information for storage systems and servers. Information about resources that connect to monitored storage systems using the iSCSI protocol is not shown in the web-based GUI. For example, information about iSCSI mapped volumes is not shown.
In Metro Mirror or Global Copy relationship, if a Peer to Peer Remote Copy (PPRC) is terminated and then deleted on one of the storage systems, the other storage system retains the relationship
If a storage system is not aware of the termination due to the loss of the PPRC path, volumes on that system might be counted as both unprotected and protected.
To correct the reporting, take one of the following actions:
Issue a terminate to the storage system, which retains the relationships.
Reestablish the PPRC paths and the relationship by using the dscli command or another copy services management tool (such as the CSM product).
Provisioning fails with ADD_PORTS_TO_HOST message on XIV 11.5.0 when modifying host
When trying to provision storage from an IBM XIV® 11.5.0 system, the provisioning task fails with an "ADD_PORTS_TO_HOST task failed" message when trying to provision storage to a host that is already defined on the XIV subsystem. This can happen when the host definition does not contain all the Fibre Channel ports that IBM Spectrum Control is trying to assign the volume to.
For example, if you try to provision storage to a host that has 2 Fibre Channel ports and the host is
already defined on the XIV 11.5.0 system but with only one of the Fibre Channel ports, the assign job will fail and the second port will not be added to the host.
This condition does not occur when IBM Spectrum Control is creating the host definition, or when an existing host definition already has all ports defined. This issue does not occur with XIV 11.4 systems, and 11.5.1 or later systems.
Workaround: modify the host definition on the XIV 11.5.0 system to contain all the Fibre Channel ports, then run a probe of the XIV 11.5.0 system in IBM Spectrum Control or upgrade to XIV 11.5.1 or later.
Enabled ethernet port that is not connected to a switch can cause the GUI to hang
On some IBM servers running Windows 2012, an enabled ethernet port can cause the IBM Spectrum Control web-based GUI to stop responding if the port is not connected to a switch. This condition causes a DB2 SQL -911 error and also causes the IBM Spectrum Control GUI to stop responding.
To prevent this, disable the ethernet port or configure the port by using the instructions here: https://publib.boulder.ibm.com/infocenter/bladectr/documentation/index.jsp?topic=/com.ibm.bladecenter.hs22.doc/dw1iu_t_lan_over_usb_install_windows_driver_install.html
Switches from a subordinate server with Unknown condition are seen as Normal on the rollup master server
If a subordinate server is at a level lower than Spectrum Control 5.2.10, switches in an Unknown condition will be seen as Normal on the rollup master server.
Upgrade the subordinate server to get the correct status shown on the master server.
Fabrics on master server are not displayed under Rollup Fabrics reports after upgrade from Tivoli Storage Productivity Center or Spectrum Control to Spectrum Control 5.2.10 or later
When Tivoli Storage Productivity Center or Spectrum Control 5.2.9 or lower is upgraded to Spectrum Control 5.2.12 or higher, fabrics on the master server are not displayed under Rollup Fabrics reports. Once fabrics have been probed on the upgraded master server, they will appear in the Rollup Fabrics reports.
Unassigned Volume Space and Assigned Volume Space values are slightly different between the subordinate server and the rollup server.
Due to differences in the methods used to calculate Unassigned Volume Space and Assigned Volume Space, there may be minor variations between the rollup and subordinate servers. The value recorded in the subordinate server resource list panel is the definitive one.
Disable Windows User Account Control to edit configuration files
On Windows installations, if you installed IBM Spectrum Control by using a domain user account, you must disable User Account Control to edit the IBM Spectrum Control configuration files.
Cannot report detailed back-end storage information for a DS5000 or a DS4000 system
If a SAN Volume Controller uses back-end storage from a DS5000 system or a DS4000 system, some information about the back-end storage might be missing. If you did not create explicit host connections for the back-end disks on the DS5000 or DS4000 system, the following problems might occur:
The CIM agent for the DS5000 or DS4000 system does not report any detailed information about the back-end storage.
IBM Spectrum Control cannot provide other information about the back-end storage for the consuming disk system. For example, IBM Spectrum Control cannot provide RAID information.
Therefore, you must create explicit host connections for the back-end disks on the DS5000 or DS4000 system. It is not sufficient to associate the back-end disks with the default host group.
IBM Spectrum Control cannot detect the mount status of file systems on Scale Out Network Attached Storage and Storwize V7000 Unified storage systems
If a file system is manually unmounted from an IBM Scale Out Network Attached Storage (SONAS) or Storwize® V7000 Unified storage system, IBM Spectrum Control cannot detect that the file system was unmounted. Because of this limitation, information that is displayed in the IBM Spectrum Control GUIs is not accurate and some storage-related actions on the file system might fail.
For example, when you provision storage, a file system on a Storwize V7000 Unified storage system might be recommended for provisioning. However, if that file system was manually unmounted after it was first detected by IBM Spectrum Control, the provisioning action will fail. An unmounted file system cannot be used for provisioning. To avoid this issue, ensure that the monitored file systems on the Storwize V7000 Unified storage system are mounted before you run the provisioning action.
A new IBM SONAS fileset might be mistakenly deleted
The fileset information was deleted in the other system before the new fileset with the existing ID was created.
If IBM Spectrum Control discovers a new IBM SONAS fileset, the ID of a deleted file set might be reused for the new file set. If you delete the older fileset in IBM Spectrum Control, the new file set is deleted instead. This issue occurs in the following circumstances:
A file set that is known to IBM Spectrum Control is deleted in a system other than IBM Spectrum Control.
IBM Spectrum Control retained the deleted file set information, either because the probe was not run after the file set was deleted or because the retention period of the file set has not expired.
The file set information was deleted in the other system before the new fileset with the existing ID was created.
The change password tool cannot restart the Device server
When you run the change password tool, the following message is displayed:
There was an error restarting the Device server. Restart the server manually.
To manually start the Device server, follow these steps:
On Windows operating systems:
At the command prompt, go to the TPC_installation_directory\scripts directory.
Run the stopTPCDevice.bat command.
Run the startTPCDevice.bat command.
On AIX® or Linux operating systems:
At the command line, go to the TPC_installation_directory/scripts directory.
Run the ./stopTPCDevice.sh command.
Run the ./startTPCDevice.sh command.
SVC/Storwize may not accurately report used space of data reduction pools and deduplicated volumes
When an SVC or Storwize device is configured with data reduction pools, the device (on certain firmware levels, including 184.108.40.206) no longer reports the used space for a specific volume, and the tier distribution is no longer reported. This is a limitation from the SVC firmware with data reduction pools/deduplicated volumes.
Running multiple optimization recommendations at the same time results in a Pool Exhaustion Exception error
In some cases, running more than 15 optimization recommendations at the same time can cause one or more of the individual recommendation executions to result in a Pool Exhaustion Exception error. This can be caused by a lack of available resources in the operating system thread pool. You can manually complete the failed recommendations.
Changing an existing NetApp filer that uses a Storage Resource agent to use NAPI
You cannot change an existing NetApp filer that is managed by using a Storage Resource agent to be directly managed by using NetApp NAPI-based management. If you want to change from using a Storage Resource agent to NAPI for your existing NetApp filers, you must add the filers to IBM Spectrum Control again. Specify the NetApp credentials when you add the filer.
IBM Spectrum Control determines that the NetApp resource is already monitored. IBM Spectrum Control modifies the data source information so that the NetApp filer data is retrieved directly from the NetApp itself rather than from the Storage Resource agent.
Setting the rate at which data is copied between volumes that run IBM Spectrum Virtualize
IBM Spectrum Control can do tasks that significantly alter the structure of storage. For example, IBM Spectrum Control can add a mirrored volume copy, or migrate volumes from one pool to another by using storage optimization functions. When IBM Spectrum Control performs these tasks, a default synchronization rate of 100% is set.
For more information about how to change the synchronization rate, see the "Changing the synchronization rate for volumes on SAN Volume Controller or Storwize family systems" http://www.ibm.com/support/knowledgecenter/SS5R93_5.3.2/com.ibm.spectrum.sc.doc/tbs_svc_setting_sync_rate.html .
Linux SRA Probes hang and remain "In Progress" forever
SRA probes run Logical Volume Manager (LVM) commands and these can hang causing the entire SRA to hang and appear to be "In Progress" indefinitely.
To verify that this is the situation causing the hang, view the SRA trace log on the SRA Deployment and verify that the last command was an LVM one.
To recover from this:
Kill the hung SRA process
Kill the hung LVM command
From a command line, retry the LVM command and verify that it runs successfully. If it does not, use the LVM documentation to repair the LVM so that it does.
Restart the SRA
You can follow the progress of the APAR related to this issue here: http://www.ibm.com/support/docview.wss?uid=swg1IT15105
RHEL known issues with fprintd-pam module (fingerprint authentication module)
Spectrum Control may report incorrect vmdk size and incorrect capacity of VM
Spectrum Control persists the relation between a vmdk and vmdisk, restricting the relation to vmdisk <-> current vmdk file. The current vmdk file has an aggregate size which includes the sizes of snapshots up to the current vmdk file. Spectrum Control associates the latest running delta file with vmdisk, hence Spectrum Control may report the size smaller than actual size of the vmdisk if there are newer snapshots (which are not included in the current vmdk size).
Installation, upgrade, and configuration for Saving custom reports to file systems on remote servers
The machine on which the Web server component was installed and runs must be able to access the remote or shared file system that is specified for saving custom reports.
To make file systems on a server available to remote clients, they must be mounted as a CIFS export on Windows operating systems or as an NFS export on UNIX or Linux operating systems. On Windows operating systems, the file system must be mounted as the local system user or from a service that is running under the local system account so that it is visible to all logon sessions. One way of mapping a drive as the local system user is to map the drive from a psexec command window. The psexec command window is available as part of the Sysinternals command-line tools for Windows operating systems.
Export Performance Data Tool
The output format from the exportPerformanceData Script has changed in the Spectrum Control 5.3.1 release. To minimize the impact of this and all future output format changes, users of the CSV files are encouraged to parse the column headers they are interested in.
EMC Support Issues
In 5.2.14 and later, you can view more information about the capacity, space usage, and performance of EMC™ storage systems. However, keep in mind the following issues for EMC support:
On the details page for an EMC storage system, duplicate NAS nodes might be displayed if the EMC's NAS Servers support both NFS and CIFS protocols. This issue occurs because each protocol represents a node. For example, on the same NAS server, if nas1451 supports NFS and NAS1451 supports CIFS protocols, two node entries are displayed on the details page for the storage system.
Information about both FC and Serial Attached SCSI (SAS) ports are returned when FC ports are probed.
- Thin-provisioned volumes: The value for allocated space is incorrect.
- Total or available capacity values of each storage tier in a storage pool are incorrect.
- Thin pools: The value for physical allocated space is incorrect.
- File system pools are not displayed.
- Total or available capacity values of each storage tier in a storage pool are incorrect.
- The VNX regular thin pool's "pool capacity" value, returned by EMC SMI-S provider, is slightly lower than reported by the element manager. This applies only to VNX thin pool, referred to as "Pools" in Unisphere.
- Disk and volume response times and utilization percentages: The displayed values for these metrics are higher than their actual value.
- Available pool space or any allocated capacity values are always 0.
- All aggregated volume capacity values are 0 because of the missing relationship between pools and volumes.
- Mappings of volume to pool and volume to disk are not displayed.
Due to the capacity value limitations above, the Spectrum Control License Compliance panel displays "N/A" in the capacity columns for EMC devices.
EMC Reporting: In Cognos Analytics, pre-defined reports might not be available for EMC storage systems.
Language Related Issues
Changing language in web browser doesn't change the entire Spectrum Control GUI
When the WebSphere Liberty Profile (WLP) is running in another language, other than English, the user can not change the Spectrum Control GUI to English. However, it can be changed to any language other than English (the default language) and some fields in the Spectrum Control GUI are displayed in an incorrect language.
The work around is to modify the WLP language to English:
1. Stop the Spectrum Control web server
2. Navigate to:
3 Edit jvm.options file, and add these lines:
4. Start the web server
5. Open the web browser, set the language in the browser, and open the Spectrum Control GUI.
6. (optional) Confirm the changes were made by viewing log file.
Navigate to <TPC_install_location>\wlp\usr\servers\webServer\logs\
Open the console.log file, the content should be in English.
GPFS/GSS/Spectrum Scale is not supported in Cognos Analytics
GPFS/GSS/Spectrum Scale™ file systems are not correctly represented in Cognos reports and are not supported in Cognos.
Information is not collected about NFS and CIFS exports that are defined on a GPFS/GSS/Spectrum Scale clusters.
Links to Help in Spectrum Control 5.3.2 predefined reports launch the public Spectrum Control Knowledge Center
When using the Cognos Analytics User Interface to generate Spectrum Control predefined reports, the Help link will launch the public Spectrum Control Knowledge Center. The system running Cognos Analytics will need access to the internet in order to get to the Knowledge Center. Alternatively, you can access the online help in the Spectrum Control GUI and navigate to the help information for reports.
Migrating Cognos BI reports with schedules from Tivoli Common Reporting to IBM Cognos Analytics
To export schedules with your Cognos BI reports content from Tivoli Common Reporting, follow these steps:
On the Select the public folders content page, select Include schedules.
Set Conflict resolution to Replace existing entries.
To import the report content and the schedules into IBM Cognos Analytics, follow these steps:
On the Select the public folders, directory, and library content page, select the items to import.
Select Include schedules.
Set Conflict resolution to Replace existing entries.
The results of importing the reports and schedules into IBM Cognos Analytics contain the following similar messages:
CM-REQ-4328 A problem was encountered while importing the object "/content/folder[@name="IBM Spectrum Control Predefined Reports"]/ folder[@name="Servers"]/report[@name="Servers Capacity"]/schedule". CM-REQ-4329 The following references cannot be resolved and were cleared: "credential: CAMID("VMMProvider:smadmin")/credential[@name=’Credential ’] ".
CM-REQ-4328 A problem was encountered while importing the object "/content/folder[@name="IBM Spectrum Control Predefined Reports"]/ folder[@name="Servers"]/report[@name="Servers Capacity"]/ schedule[@name="2018-04-27T18:03:22.638Z"]". CM-REQ-3282 The schedule will not run because the credential is missing.
You can safely ignore the messages as they are expected.
After you import the report content and schedules into IBM Cognos Analytics, the schedules will not run due to missing credentials.
To update the schedules in IBM Cognos Analytics with the correct credentials, follow these steps:
1. Open a web browser and enter either of the following URLs:
http://FQDN_Of_Your_Machine :port/ b i
https: / /FQDN_Of_Your_Machine:port/bi
Where http or https are protocols, FQDN_Of_Your_Machine is your fully qualified domain name (for example, myserver.mycompany.com), and the port value is the value where Cognos Analytics is listening for communication. The default port value is 9300.
2. On the IBM Cognos Analytics Welcome page, click Team content.
3. Select a report that has an existing schedule.
4. Select the Properties for the report.
5. Select the Schedule tab.
6. Select the > icon to open the schedule.
7. Click Update on the schedule page.
Repeat steps 3 - 7 for each migrated report whose schedule you want to run in IBM Cognos Analytics.
Documentation Updates and Corrections
There are no documentation updates or corrections at this time.
Browser displays a security certificate error
Some browsers will display: "There is a problem with this website's security certificate." when you log in to IBM Spectrum Control. To continue to the GUI, click "Continue to this website" and you will be returned to the previous page. This behavior does not occur on all browsers.
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22 February 2022