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ASTEK A54812-SW User Manual

Sas switch
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A54812-SW SAS Switch
User Guide
Version Release: April 12, 2016

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Summary of Contents for ASTEK A54812-SW

  • Page 1 A54812-SW SAS Switch User Guide Version Release: April 12, 2016...

  • Page 2: Table Of Contents

    1.5.1 SAS Zoning Overview ........................... 8 1.5.2 Creating SAS Zones ............................9 1.5.3 Configuring SAS Zones ..........................10 1.6 Connecting Devices to the A54812-SW Switch ....................11 Chapter 2: Installation and Hardware Setup ......................18 2.1 Unpacking the Switch ............................18 2.2 Identifying Switch Components ........................
  • Page 3 3.4 File, Server, and Help Menu Options ........................ 26 3.5 Views Tab ................................27 3.5.1 View End Device Table ..........................27 3.5.2 View Alias Table ............................28 3.5.3 View Zone Groups ............................29 3.5.4 View Zone Sets ............................30 3.6 Domain Tab ............................... 30 3.6.1 Alias Management .............................

  • Page 4: Chapter 1: Overview

    Chapter 1: Overview This document is the primary reference for the A54812-SW Serial Attached SCSI (SAS) switch. It describes the features of the switch and explains how to install and physically configure the switch. The document also explains how to use both the web-based interface and the command-driven interface of the SAS Domain Manager (SDM) utility to create storage configurations in the SAS domain.
  • Page 5 The A54812-SW switch uses one LSISAS3x48 12 Gb/s SAS expanders, which is compliant with the ANSI Serial Attached SCSI specification and support SATA as defined in the Serial ATA: High Speed Serialized AT Attachment and the Serial ATA II: Port Selector Specification.

  • Page 6: Sas Phys, Ports, And Connectors

     zoning. It also includes the SDM firmware. This block controls the flow of data through the SAS connectors. SAS Connectors – The A54812-SW switch has 12 x4 Mini SAS HD connectors, numbered 0 through 11. It  supports connection to SAS devices at link rates of 12.0Gb/s, 6.0Gb/s, and 3.0Gb/s.
  • Page 7 Figure 5 Narrow and Wide SAS Ports The A54812-SW switch has 48 phys, numbered 0 through 47. Each of the 12 SAS connectors on the switch case (numbered 0 through 11 in this document) contains four phys, making them wide ports.

  • Page 8: Sas Connectors And Cabling

    1.4 SAS Connectors and Cabling Use a crossover cable to connect the A54812-SW switch to a server or to another host device. Use 4x Mini SAS HD connectors (also called SFF-8644 connectors) on both ends of the crossover cable to connect the switch to the device.

  • Page 9: Creating Sas Zones

    Interface) configures the zone manager. The following figure shows a simple example of zoning. Figure 7 Simple Zoning Example A54812-SW 1.5.2 Creating SAS Zones To create SAS zones, start by creating zone groups that include hosts or storage devices that share common access privileges, and zone sets that connect the zone groups together.

  • Page 10: Configuring Sas Zones

    Changes to the active zone set do not take effect until the zone set is updated and reactivated. Zoning is managed throughout the ZPSDS formed around the A54812-SW switch, used to manage zoning, and ...

  • Page 11: Connecting Devices To The A54812-Sw Switch

     Zone Group 7 accesses Zone Groups 9 and 10, and vice versa.  1.6 Connecting Devices to the A54812-SW Switch The rules for connecting devices to the 12 SAS connectors on the A54812-SW switch are as follows: Page 11...
  • Page 12 Switches can be cascaded by connecting any SAS connector of the downstream switch to any SAS connector on  the upstream switch. When SAS zoning is used, and multiple A54812-SW switches are used in the domain, the switches can be  cabled directly to one another.
  • Page 13 RAID array. If more storage capacity is required, you can expand the RAID array, or you can create a configuration with a second cascading switch, as shown in the next example. Example 3 shows eight servers and one cascading switch connected to the A54812-SW switch. Several JBODs and RAID arrays connect to the other switch.
  • Page 14 Example 3 shows how you can cascade two A54812-SW switches to increase the number of devices in the SAS domain. As in Example 1, all of the servers can access all the data storage devices, or you can implement a zoning configuration to restrict the access.
  • Page 15 SDM utility detects newly added SAS devices during device discovery. You can use the SDM utility to modify and expand the storage configuration. NOTE For zoning to function correctly, you must cable A54812-SW switches directly to one another, or you must cable them through SAS 2.0 oe SAS 3.0 zoning expanders.
  • Page 16 Figure 15 Example 6, Cascaded Switch Configuration As in Example 3 (Figure 12), the cables in this example can run from any connector of the downstream switch to any connector in the switch above it. The cascade sequence is limited to four switches. Example 7 shows a star (tree) configuration of four switches, with Switch B, Switch C, and Switch D connected directly to Switch A.
  • Page 17 Figure 16 Example 7, Switches in a Star (Tree) Configuration NOTE The cables can run from any connectors on Switch B, Switch C, and Switch D to any connectors on the central Switch A. You can attach more switches to the other connectors on Switch A. You also can attach additional switches to Switch B, Switch C, or Switch D Page 17...

  • Page 18: Chapter 2: Installation And Hardware Setup

    If any item is missing or damaged, contact your local reseller for replacement. 2.2 Identifying Switch Components The following figure shows the connectors and LEDs on the A54812-SW switch. Each of the 48 SAS phys has a corresponding fault status LED and an activity LED.

  • Page 19: Installing The A54812-Sw Switch

     2.3 Installing the A54812-SW Switch CAUTION To prevent the A54812-SW switch from overheating; do not operate it in an environment that exceeds the maximum recommended ambient temperature of 45 °C (113 °F). When installing the switch, consider the following information: The acceptable temperature and humidity operating ranges for installation and operation of the switch are as ...

  • Page 20: Replacing A Failed Power Supply

    (non-network) Ethernet connection between the switch and the host. WARNING Provide the A54812-SW switch with an AC-protective earth-ground connection. Never defeat the ground conductor or operate the A54812-SW switch without a suitably installed ground conductor. The following table lists the switch configuration defaults.

  • Page 21: Changing The Ip Address

    SAS host bus adapter, a SAS or SATA JBOD, a RAID array, a SAS expander or SAS /SATA devices. You can use any SAS port on the A54812-SW switch to cascade to any port on another A54812-SW switch to increase the size of the storage configuration.

  • Page 22: Optimizing Switch Performance With Sata Drives

    Optimizing Switch Performance with SATA Drives Due to the nature of SATA drives the performance of the SAS bus will vary depending on the SATA IOs rate. During domain discovery the SATA drives will stop the IO stream for 1000 milliseconds. This interrupt of the IO stream will decrease the overall bandwidth.

  • Page 23: Safety/Emissions/Susceptibility Declarations And Notices

    The setting window will now appear. Uncheck the “Discovery enabled box, then click “Apply” Option 2 Change the polling interval Like option 1 select “SDM Settings”, do not uncheck “Discovery enabled” Change the Polling interval to 120 (2 minutes), this will reduce the effect on the SATA discovery delay. Click “Apply”...

  • Page 24: North America

    Astek Corporation is not responsible for any radio or television interference caused by unauthorized modification of this equipment or the substitution or attachment of connecting cables and equipment other than those specified by Astek. It is your responsibility to correct interference caused by such unauthorized modification, substitution, or attachment.

  • Page 25: Starting Sdm-Gui

    3.2 Starting SDM-GUI Follow these steps to start SDM-GUI: 1. Install Java 7 Update65 or later. 2. Run SDM_GUI.jar 3. Enter the Switch IP address 4. Enter your user name and password. 5. Click Login. The main window and Summary tab appear 3.3 Summary Tab and Menu Options The following figure shows the SDM main window, with the menu bar and Summary tab.

  • Page 26: File, Server, And Help Menu Options

    3.4 File, Server, and Help Menu Options The menu bar at the top of the SDM-GUI window provides several options for managing the server. The available commands are as follows: Select File > Refresh to scan the domain for topology or status changes. (SDM automatically scans the ...

  • Page 27: Views Tab

    Figure 22 Graphical View To view a list of device properties, position the mouse on top of a device icon. To view a pop-up menu of possible actions, right-click the mouse on a device icon. NOTE You can also open the Graphical View window by clicking the blue words Graphical View at the top of the main window.

  • Page 28: View Alias Table

    Figure 23 End Device Table 3.5.2 View Alias Table As shown in the following figure, the View Alias Table option displays a list of all aliases. Page 28...

  • Page 29: View Zone Groups

    Figure 24 Alias 3.5.3 View Zone Groups As shown in the following figure, the View Zone Groups option displays a list of zone groups. To view details about any zone group, select it from the list on the left of the window. An asterisk following a zone group name indicates that the zone group is currently active.

  • Page 30: View Zone Sets

    3.5.4 View Zone Sets As shown in the following figure, the View Zone Sets option displays a list of zone sets. To view details about any zone set, select it from the list on the left of the window. An asterisk at the end of a zone set name indicates that the zone set was active at the time of activation.
  • Page 31 Figure 27 Create/Modify Aliases To assign an alias, click a node in the tree on the left of the window and type an alias of up to 24 characters in the Enter alias field. Click Apply to assign the alias. You can change existing aliases in addition to assigning new aliases.

  • Page 32: Automatically Configure Zone Groups And Zone Sets

    Figure 28 View/Delete Alises To delete an alias, select the check box next to it and click Delete. 3.6.2 Automatically Configure Zone Groups and Zone Sets Zoning wizards simplify zone set creation. The Automatically Configure Zone Groups command and Zone Sets command include three wizards that automate the configuration of zone groups and zone sets.
  • Page 33 and share a common ZPSDS entry point. If so, the topology cannot support this zoning configuration, and the wizard terminates with an error message. If the topology supports the configuration, the wizard builds two zone groups: one group for the initiators, and one group for the targets. The groups have the names <zone set name> + #001 and <zone set name>...

  • Page 34: Manually Configure Zone Groups

    3.6.2.3 End Device Wizard Use the End Device Wizard to automatically configure a zone set and associated zone groups by grouping end devices. Each window of the wizard includes instructions to guide you through the configuration process. This wizard uses a snapshot of the domain to determine the available end devices and then displays lists of initiators and targets.
  • Page 35 Figure 29 Create Zone Group Zone group names must be unique and must be no longer than 32 characters. The only special characters you can use in a zone group name are # (pound), - (dash), and _ (underscore). The list of unselected zone group members contains only the expanders that are inside the ZPSDS boundary. The unselected members list box contains only the phys that are inside the ZPSDS boundary.

  • Page 36: Manually Configure Zone Sets

    Figure 30 Modify Zone Group 3.6.3.4 Delete Zone Group Use the Delete Zone Group command to delete an existing zone group. You can delete any zone group that is not currently a member of any zone set. Select the zone group name from the pull-down list in the upper left of the window and click Delete.
  • Page 37 expanders and switches are changed to the new password. The new password can be one of the current passwords for any switch or expander, or it can be a new one. All expanders and switches must have the same password. Passwords are text strings that consist of any valid ASCII character. The maximum password length is 32 characters.
  • Page 38 3.6.4.4 Modify Zone Set Use the Modify Zone Set command to modify existing zone sets. As shown in the following figure, the Modify Zone Set window lets you give or revoke the permission to communicate among the zone groups. You also can rename an existing zone set.
  • Page 39 Figure 33 Activate/Deactivate Zone Set To activate a zone set, select it from the pull-down list, type the zone manager password, and click Apply. When activated, copies of the zone set and component zone groups are made. An asterisk at the end of a zone group name indicates that the zone group is currently active 3.6.4.6 Delete Zone Set Use the Delete Zone Set command to delete an existing zone set.

  • Page 40: Devices Tab

    Figure 34 Delete Zone Set 3.7 Devices Tab The Devices tab displays the domain topology in the form of a tree. Select items in the tree to access a secondary set of tabs that can include Properties, Environmentals, Attached Devices, Phys, Operations, and SNMP. The tabs displayed on this row depend on both the account type and the device selected in the tree.
  • Page 41 Figure 35 Device Tree and Properties Tab NOTE If there is an active zone set, and if you click on an end device, all other end devices with which it has permission to communicate appear in blue. To view a list of the symbols used to represent devices in the domain, click the blue word legend in the upper left of the window.

  • Page 42: Properties Tab

    Figure 36 List of Symbols Note the red symbol that represents a SAS expander that does not support saving zone configurations. 3.7.1 Properties Tab The Properties tab displays information about the device that is currently selected in the left panel. Properties information includes SAS Address, Vendor ID, and Device Type.
  • Page 43 When the temperature, fan speed or voltage falls or rises to meet a set threshold value, the element enters either a noncritical warning state or a critical state. Temperature Threshold The temperature threshold range for the A54812-SW switch is 1 °C to 79 °C. Threshold values outside this range are not accepted. ...
  • Page 44 Figure 38 Threshold Values The A54812-SW switch firmware does not support changing the overall threshold. Expand the temperature icon or the voltage icon to get the actual elements, as shown in the following figure. The actual elements support the overall threshold.

  • Page 45: Attached Devices Tab

    Figure 39 Supporting Threshold Elements 3.7.3 Attached Devices Tab The Attached Devices tab appears for all expanders and end devices. This tab shows a list of devices directly connected to the selected device and the phys used in those connections. The following figure shows the Attached Devices tab.

  • Page 46: Phys Tab

    Figure 40 Attached Devices Tab 3.7.4 Phys Tab The Phys tab, which appears for expanders, lists information about the phys on the selected expander. The following figure shows the Phys tab. Figure 41 Phys Tab Page 46...

  • Page 47: Phy Counters Tab

    To view detailed information about any phy, click on an entry in the Phy Id column. A pop-up window appears with detailed status information. 3.7.5 Phy Counters Tab The Phy Counters tab, which appears for expanders, lists information about the phy error counters on the selected expander.

  • Page 48: Operations Tab

    The Operations tab appears only when you select an expander from an admin account. The following figure shows the commands that are listed in this tab when the A54812-SW switch is selected. The commands vary depending on the selected device type.
  • Page 49 Figure 44 Operations Tab 3.7.7.1 Download Firmware Use the Download Firmware command to update the firmware on Astek SAS 3.0 switches. SDM-GUI verifies that the product identification of the image matches the targeted device. SDM-GUI prevents downloading of incompatible firmware, based on the currently installed firmware version. SDM-GUI automatically resets the expander after a successful update.
  • Page 50 3.7.7.2 Upload Firmware Use the Upload Firmware command to upload the firmware from Astek SAS 3.0 switches. The following figure shows the third step of the update process: saving the file as an expander firmware image. Figure 46 Upload Firmware 3.7.7.3 Enable/Disable/Reset Phys...
  • Page 51 Figure 47 Enable/Disable/Reset Phys 3.7.7.4 Reset Switch Use the Reset Switch command to reset the Astek SAS 3.0 switches that is currently selected in the device tree. You must confirm the reset command. 3.7.7.5 Configure IP Use the Configure IP command to change the IP address for the Astek switches that is currently selected in the device tree.
  • Page 52 Figure 48 Set a Static IP Address Figure 49 Set a Dynamic IP Address 3.7.7.6 Get Date Use the Get Date command to obtain the switch date. SDM-GUI shows the device date in a user-friendly format. 3.7.7.7 Set Date Use the Set Date command to set the switch date. 3.7.7.8 Display Device Log Use the Display Device Log command to show the device log for the selected device.
  • Page 53 3.7.7.9 Performance Monitoring The A54812-SW switch supports event counters for performance monitoring and error monitoring on all switch phys. An event counter can be configured to count one specific SAS event, such as transmitted SSP frames. Each phy can have up to four event counters configured at a time. A configuration that specifies four event counters is a config set.
  • Page 54 Figure 51 Display Performance Monitoring Config List  Set Config – The Set active Performance Monitoring Config command, shown in the following figure, lets you  apply a different monitoring configset. You can select the time base (in seconds) for monitoring. Changing the time base changes how often the switch firmware updates the monitored values.
  • Page 55 Figure 53 Select Range for Monitor Values Figure 54 Performance Monitor Values Page 55...

  • Page 56: Snmp/Smtp Tab

    The MIB is stored in a set of files that are provided to an SNMP server to describe the SNMP interface for the switch. The file set is included on the CD with the switch and is available for download on the Astek website. This specification instead defines the high-level object identifiers (OID) tree.
  • Page 57 Supports the system MIB from RFC 1213.  Supports three SNMP v2 generic TRAPs: coldStart, warmStart, and authenticationFailure. The following figure  shows the Agent Security screen. Figure 56 Agent Security System MIB Use the System MIB command to change the settings in the SNMP system MIB configuration page. Any of the three strings can be set to empty.
  • Page 58 SNMP TRAP IP Use the SNMP TRAP IP command to configure how the SNMP agent sends TRAPs. Up to 16 target IP addresses can be set. The agent sends all TRAPs to any valid IP addresses specified by this command. To disable an entry, clear the check box to the left of the IP address.

  • Page 59: Configuration Backup And Restore

    3.8 Configuration Backup and Restore SDM-GUI lets you store aliases, zone groups, and zone sets. There are two types of restore: restore and smart restore. To create a backup, launch the configuration backup dialog from the Server > Configure > Backup menu. To perform a restore, launch the configuration backup dialog from the Server >...
  • Page 60 Page 60...

  • Page 61: Chapter 4: Troubleshooting

    Chapter 4: Troubleshooting The following table lists several troubleshooting issues related to the A54812-SW switch and the remedies for them. Table 5 Common Troubleshooting Issues and Remedies Issue Remedy Issue Remedy The password for the admin account is lost and...

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