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Sun StorageTek 6540 Array Release Notes, Release 6.6 |
This document contains important release information about the Sun StorageTek 6540 Array or information that was unavailable at the time the product documentation was published. Read this document so that you are aware of issues or requirements that can affect the installation and operation of the Sun StorageTek 6540 Array.
The release notes consist of the following sections:
See the Sun StorageTek Common Array Manager software product page at:
http://www.sun.com/storage/management_software/resource_management/cam/index.xml
For information about the management software for the 6540 array, see the CAM documentation at:
http://docs.sun.com/app/docs/prod/stor.arrmgr66#hic
Look for the latest patches pertaining to your environment at:
http://sunsolve.sun.com/show.do?target=patchpage
1. In the Search box in the masthead, enter 6540.
2. Filter Results By: Downloads > Patches.
Patches related to the array are listed.
Array controller firmware version 7.60.18.13 includes expanded disk drive support, including support for encryption-capable drives (see TABLE 3 for a list of supported drives).
The firmware is provided with Sun StorageTek Common Array Manager (CAM)
v. 6.6.0, available for download at:
http://www.sun.com/storage/management_software/resource_management/cam
Click the “Buy Now” button to download the latest CAM software.
For more information about bug fixes, see the Sun StorageTek Common Array Manager Release Notes, 6.6.0. See Upgrading Firmware for details about upgrade paths.
The Sun StorageTek 6540 Array is a 4-Gb/2-Gb/1-Gb Fibre Channel (FC) array that offers both direct attached and storage attached network (SAN) access. The Sun StorageTek 6540 Array includes the following features:
The Sun StorageTek 6540 Array is available in a 4-Gbyte-cache, an 8-Gbyte-cache, and a 16-Gbyte-cache configuration, compared in TABLE 1.
Auto Service Request (ASR) is a feature of the array management software that monitors the array system health and performance and automatically notifies the Technical Support Center when critical events occur. Critical alarms generate an automatic Service Request case. The notifications enable Service to respond faster and more accurately to critical on-site issues.
The Auto Service Request capability in Sun StorageTek Common Array Manager software allows you to register devices to participate in the ASR service. Refer to the Sun StorageTek Common Array Manager Release Notes, Release 6.4.1 or higher, for more information.
TABLE 2 lists supported expansion modules. Controller firmware 06.19.25.10 (or higher) allows tray mixing of 6540, 6140, and 6130 array controller modules and the Sun StorageTek CSM100, CSM200, FLA200, FLA300, and FLC200 Expansion Modules.
Caution - To add trays with data already on them, contact your service representative for assistance to avoid data loss. |
Refer to “Installing Firmware for Additional Expansion Modules” in the Sun StorageTek Common Array Manager Release Notes, v.6.6.0 or higher, for more information on the procedure to upgrade trays without data. Also refer to Best Practices for Adding Expansion Modules.
Only Sun Service should install expansion modules with data. Refer to the Sun StorageTek Common Array Manager Release Notes for more information about supported expansion modules by array.
When you add a new expansion module to an existing array in a production or active environment, it is best practice to cable and add the trays while the RAID controller module is powered on in order to avoid a variety of issues including those listed below.
Before connecting any replacement drive or additional expansion module to an existing functioning array, it is best practice to contact Sun Support Services. One reason for this is to avoid issues related to DACstore, the configuration and status database maintained by the array firmware, that stores its information on each of the disk drives.
Contact Sun Support Services promptly upon experiencing any of the following symptoms:
The software and hardware products that have been tested and qualified to work with the Sun StorageTek 6540 Array are described in the following sections:
You must have Sun StorageTek Common Array Manager, v5.00 or later software. Current CAM Release 6.6.0 is recommended.
TABLE 3 lists the size, spindle speed, type, interface speed, and tray capacity for the supported FC and SATA disk drives in the Sun StorageTek 6540 Array.
This section describes supported data host software, HBAs, and switches.
You must install multipathing software on each data host that communicates with the Sun Storage 6540 Array.
For Solaris Operating System (OS) 9 data hosts, the multipathing software is part of the Sun StorageTek SAN Foundation Software (SFS). Solaris OS 10 includes the multipathing software. For data hosts running supported versions of Solaris prior to Solaris OS 10, follow the instructions in the Sun StorageTek 6540 Array Hardware Installation Guide to download and install the software from the Sun Download Center.
Note - Single path data connections are not recommended. For more information, see Single Path Data Connections. |
TABLE 4 lists supported multipathing software by operating system.
Note - Download the MPIO and RDAC multipathing drivers from the Sun Download Center http://www.sun.com/download/index.jsp?tab=2. |
Note - The multipathing driver for the IBM AIX platform is Veritas DMP, bundled in Veritas Storage Foundation 5.0 for Sun StorageTek 6540 Array. Download the Array Support Library (ASL) from http://support.veritas.com/. |
TABLE 5, TABLE 6, and TABLE 7 list supported HBAs and other data host platform elements by operating system.
HBAs must be ordered separately from Sun or its respective manufacturers. Sun HBAs can be ordered from:
http://www.sun.com/storagetek/storage_networking/hba/
You can download HBA drivers and other host software from the Sun Download Center at:
http://www.sun.com/software/download/
Download operating system updates from the web site of the operating system company.
You must install the multipathing software before you install any OS patches.
Emulex LPe12000/LPe12002/LPe1250 |
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Emulex LPe12000/LPe12002/LPe1250 |
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The enterprise software applications listed in TABLE 9 are compatible with the Solaris OS on the data host.
The following FC fabric and multilayer switches are compatible for connecting data hosts and Sun StorageTek 6540 Array:
Host management software upgrades are described in the Sun StorageTek Common Array Manager Release Notes. This section describes release-specific steps for firmware and driver upgrades that you must perform:
New firmware files are included in each release of the Sun StorageTek Common Array Manager software, currently Release 6.6.0. When you install new management software from DVD or web download and perform the Upgrade Firmware function, the software will detect older firmware versions and prompt you to upgrade to the new firmware versions required for this release. It is not necessary to uninstall the existing firmware.
If the software detects that there is no earlier version installed, it will perform a complete new installation. The software is available on the Sun StorageTek Common Array Manager CD, or in the package you obtain from:
http://www.sun.com/storage/management_software/resource_management/cam/get_it.jsp
TABLE 10 lists the available firmware upgrade paths.
CAM (See To Upgrade the Firmware on the Array) |
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CAM (See To Upgrade the Firmware on the Array) |
Using CAM, this procedure downloads the firmware binary on the management host to the array and upgrades the firmware running in the array.
Note - This procedure does not apply to 06.xx to 07.xx firmware upgrades. |
1. Log in to the management host.
2. On the Java Web Console page, click Sun StorageTek Common Array Manager.
3. Go to the Storage System Summary page and select the arrays to be upgraded.
4. Click the Upgrade Firmware button.
Caution - If your array is at firmware version 07.xx, you cannot downgrade to 6.xx. If you must downgrade to 6.xx, contact Sun support. |
If you receive a failure message during a firmware upgrade, contact a technical support representative.
After installing software for the data hosts, go to SunSolve (http://www.sun.com/sunsolve) and download the SSD driver for data hosts running the Solaris 8 or 9 OS.
Note - Patch 108974-49 or higher requires patch 108528-29 or higher. If needed, apply patch 108528-29 or higher first. |
1. Download the 108974-49 or higher patch from SunSolve.
4. Apply the patch with the patchadd command:
1. Download the 113277-44 or higher patch from SunSolve.
4. Apply the patch with the patchadd command.
The following sections provide information about restrictions, known issues, and bugs filed against this product release:
If a recommended workaround is available for a bug, it follows the bug description.
This section describes known issues and bugs related to installing and initially configuring the Sun StorageTek 6540 Array.
In a single path data connection, a group of heterogeneous servers is connected to an array through a single connection. Although this connection is technically possible, there is no redundancy, and a connection failure will result in loss of access to the array.
Caution - Because of the single point of failure, single path data connections are not recommended. |
CSM200 expansion trays can hold either 2 or 4 Gbps drives, but not within the same tray. Mixing 2 and 4 Gbps drive trays in the same tray group (drive channel) will run all drives at the lower speed.
Trays Groups that must run at the same drive speed:
Figure 2-4 from the Sun StorageTek 6540 Array Hardware Installation Guide shows 4 tray groups. If you have 2 Gbps drive trays to mix with 4 Gbps drive trays, you could add all the 2Gbps drives to trays with IDs of X0 and X2. The 4 Gbps drive trays could go in trays with IDs of X1 and X3.
This does not apply to new trays consisting of all 4 Gbps drives.
The Ethernet ports of the array auto-negotiate for standard 10 and 100 Mbits/second full duplex connectivity. The ethernet switch that the array’s management path connects with must have auto-negotiation turned on. If it is not set, the array will eventually lose visibility from the management host.
This section describes general issues related to the Sun StorageTek 6540 Array hardware and firmware.
Caution - The front and back doors of the system cabinet must be closed for compliance to domestic and international EMI regulations as well as proper equipment cooling. |
Do not block or cover the openings of the system cabinet.
Cabinet airflow is from front to back. Allow at least 30 inches (76.2 cm) in front of the cabinet, and at least 24 (60.96 cm) inches behind the cabinet, for service clearance, proper ventilation, and heat dissipation.
When you add a new expansion tray to an existing array in a production or active environment, you must cable and add the trays while the RAID controller module is powered on.
Bug 6438824 - There is a module on the array, physically labeled ESM, that is identified by Sun StorageTek Common Array Manager software as an input/output module (IOM).
If a volume failure on a Sun StorageTek 6540 Array results from failed disk drives and you introduce replacement drives that were part of a volume in use by another Sun StorageTek 6540 Array, the array might incorrectly initiate a volume migration process with the replacement drives.
Workaround - Perform one of the following tasks:
The following is a list of the meanings of the status and diagnostic codes that may display on the numerical LEDs on the controller and expansion modules.
SFP speed mismatch (2 Gbit/sec SFP installed when operating at 4 Gbit/sec) |
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Current enclosure fibre channel rate different than rate switch |
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The Sun StorageTek 6540 Array Site Preparation Guide (819-6524-nn) incorrectly cites the following information in Chapter 2 under cabinet Power Requirements:
This should state the following:
Four 20 Amp circuits are required for the 6540 cabinet to insure full redundancy. (UL allows the planned use of only 16A from each of those 20A circuits.) |
All components in the cabinet should operate on only two of the 20A circuits (16A loaded each), but in this case no AC redundancy would be in place (power only A0/A1 or B0/B1).
With all four 20A circuits powered (A0, A1, B0, B1), the cabinet will draw a maximum total of 32A from the four circuits. If the system were to draw more than that 32A, then full AC redundancy cannot be present.
The Sun Rack 1000-38 cabinet power distribution systems work at 180-264VAC only. Internal components will never be operated below 180V (200V nominal) when in this cabinet.
This section provides useful operational information not documented elsewhere.
If you power off, remove, or experience a failure of either of the power cooling units, the system generates battery alerts for both batteries as “transitioning to an unknown state.”
Even though the batteries are listed as being in an unknown state, they are still providing protection in the event of a cache failure. No workaround is required.
If you power off, remove, or experience a failure of either of the power cooling units (which also house the controller’s battery packs), the system generates battery alerts for both batteries as “transitioning to an unknown state.”
Workaround - You should not lose data unless the batteries fail, or unless you do not have adequate charges remaining in the batteries for cached data to finish being written to disk.
Controller tray IDs can be set to any number between 0 and 99. Expansion trays use the values 0 to 79. Controller trays should use the values 80 to 99 (except 85) to avoid duplicate tray IDs.
If tray IDs are duplicated, the array will not be able to detect the drives on one of the two trays that have the same ID (which one is arbitrary). Do not use ID 85 for the controller tray, as this number is the default setting that indicates everything is operating as expected.
If you create management objects while an “import array” job is running, it might interfere with the import. Be sure that everyone who uses the destination array does not modify or create any objects (including volumes, initiators, mappings, and so on) while the import is in progress.
When you create a volume and label it, you can start using the volume before it is fully initialized.
During bootup, the battery light might flash for an extended period. The battery charger performs a series of battery qualification tests before starting a battery charge cycle. This series of tests occurs at subsystem power-up. The tests are automatically reinitialized by a timer approximately every 25 hours.
Each controller tray contains a hot-pluggable lithium ion battery pack for cache backup in case of power loss. The on-board battery is capable of holding a 2-Gbyte cache for up to three days (72 hours). The service life of the battery pack is three years, at the end of which the battery pack must be replaced (it is field-replaceable).
The Solaris data host format command might render one or more of the following listings:
STK-FLEXLINE380-0616 and STK-UniversalXport-0616
These are not data volumes and should be ignored.
The following is a list of documents related to the Sun StorageTek 6540 Array.
Documentation for this product is available online at: http://docs.sun.com/app/docs/prod/stortek.6540rohs#hic
You can also search for additional documentation at:
http://docs.sun.com
If you need help installing or using this product, go to:
http://www.sun.com/service/contacting
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Sun StorageTek 6540 Array Release Notes, Release 6.6, part number 821-1426-10.
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