EMC AX150-Series Integrated Management Software Version 02.20.150.5.024 Release Notes P/N 300-003-021 REV A06 April 13, 2007 These release notes contain supplemental information about EMC® CLARiiON® AX150SC, AX150SCi, AX150, and AX150i Integrated Management Software version 02.20.150.5.024. This document uses the following terms: - Server refers to a server or host that sends data to or receives data from the storage system.
Product description Product description The AX150SC, AX150SCi, AX150, and AX150i Integrated Management Software consist of the storage-system and server software below. Storage-system software component ® Version FLARE Operating Environment, which includes - Shared storage control - Navisphere® Express - Snapshot management 02.20.150.5.024 Server software component Version Navisphere Storage System Initialization Utility for Red Hat or SUSE Linux 6.20.0.3.
Product description Please go to your AX150 support website to download the latest version of the software, and to download a localized version of Navisphere Express. Navisphere Express is available in Chinese, English, French, German, Italian, Japanese, Korean and Portuguese. FLARE Operating Environment software FLARE Operating Environment (OE) software controls the operation of the AX150SC, AX150SCi, AX150, and AX150i disk-array storage systems.
Product description Snapshot management software The snapshot management software is a storage-system-based software application that lets you create a point-in-time copy — a snapshot — of a virtual disk; that is, you determine when the snapshot starts. A secondary server can then access and use the snapshot for backup purposes or as a base for temporary operations on the copy of the production data without changing the source data on the virtual disk.
Product description PowerPath software PowerPath path management software manages the paths between a Windows, Linux, NetWare, or Solaris server and virtual disks in the storage system. It transfers I/O to a working path if one path fails and provides load balancing to distribute I/O load equally among paths. The PowerPath software ships on the PowerPath CDs that are supplied with the storage system. Always check the support website for the latest version of PowerPath.
Product description Software Installation Wizard (Navisphere Manager only) The Software Installation Wizard (SIW) implements a user interface (UI) to the Navisphere Manager software upgrade function. It provides rulesbased instruction for future storage-system software upgrades similar to Navisphere Express. For details, see the separate document, EMC CLARiiON Software Installation Guide (P/N 300-001-504).
Product description SAN Copy/E is subject to the following configuration limits: Data can be copied only to CX-series storage systems that are also running EMC SAN Copy. A maximum of 100 copy sessions can be configured. A maximum of two copy sessions can be active simultaneously. The storage system must be managed with Navisphere Manager, not Navisphere Express. For further information, see the separate document, EMC SAN Copy/E for Navisphere Administrator's Guide (P/N 300-002-664).
New features and changes New features and changes The initial release introduced the following new features: 8 The AX150 storage system supports SATA II disk drives and the full complement of SATA II features including support for 3.0 Gb/s data transfer rates and support for native command queuing (NCQ). The AX150 storage system supports N+1 power, enabling the storage system to continue running if one of its power supplies fails.
Environment and system requirements Environment and system requirements This section identifies the minimum environment and system requirements necessary for the AX150SC, AX150SCi, AX150, and AX150i Integrated Management Software components.
Environment and system requirements For a listing of the currently supported versions of these operating systems, refer to Supported Configurations in the “Technical descriptions” section on the AX150 support website.
Fixed problems Fixed problems This section identifies issues fixed in various releases. Hardware problems fixed in version 02.20.150.5.024 Problem Details AX150SC, AX150SCi, AX150, AX150i – In very infrequent cases heavy I/O to the same LBA causes the front-end ports to hang (154617). Fixed in version: 02.20.150.5.024 Solution: Prevents overlapped I/O from reaching FLARE, which avoids causing the front-end ports to hang.
Fixed problems Problem Details AX150SC, AX150SCi, AX150, AX150i – The storage system or SP panics due to an unexpected interrupt related to a hardware error (146751). Fixed in version: 02.20.150.5.022 Solution: Modified storage system software by removing SMI handler access to the APIC spurious interrupt register and APIC task priority register. SMI handler now clears low level SMI status. AX150SC, AX150SCi, AX150, AX150i – The storage system will not boot.
Fixed problems Problem Details Diagnostic files could not be instantiated, listed, or retrieved on the peer storage processor. Frequency: Always [160503, 161475] Navisphere Express was not correctly sending along the security credentials to the peer storage processor which was then rejecting the request. Navisphere Express now correctly sends along the credentials so that diagnostic files can be instantiated, listed, and retrieved on the peer storage processor.
Fixed problems Problem Details Navisphere Express would not save the user’s selection to not send email events in the selected language. After a reboot, the option would be selected again. Frequency: Always under a specific set of circumstances. [156172] Navisphere Express now saves the user’s selection so that it persists through a reboot of the SP. Navisphere Express problems fixed in version 02.20.150.5.
Known problems and limitations Known problems and limitations This section identifies outstanding issues with this release, and important warnings associated with the connectivity and compatibility of this product. It also provides useful recommendations. Known problems frequency The frequencies for the known problems listed in this section have the following meanings: Frequency Definition Every Time Occurs whenever the specific condition is met.
Known problems and limitations Description Details AX150, AX150i, AX150SC, AX150SCi -- During an upgrade operation a message similar to the following appears in the event log: Frequency: Every Time Prevention/resolution: The message is expected and should be ignored. Checking file system on C: The type of the file system is NTFS. Volume label is FLARE Partition. A disk check has been scheduled. Windows will now check the disk. Cleaning up minor inconsistencies on the drive.
Known problems and limitations Description Detail Japanese version of Windows – Selecting the Help option results in two extraneous dialog boxes opening that indicate that the NavisphereArrayInitTool.htm file needs to be moved or copied. Frequency: Every Time Prevention/resolution: Press the Cancel button on each of these two dialog boxes and then the help text will open successfully. NetWare – Entering a blank or invalid IP address will cause the tool to appear hung.
Known problems and limitations Description Detail Configuring CHAP – Enabling or disabling CHAP on an existing connection can result in the connection becoming unconfigured. Frequency: Intermittent Prevention/resolution: Reconfigure the connection with the desired CHAP settings. VMware – The server utility will display only one path to the VMware console. Frequency: Every Time Prevention/resolution: This behavior is as expected.
Known problems and limitations Description Details Drive letter mappings – Navisphere Express does not correctly display drive letter mappings for all virtual disks when you assign a large number of virtual disks to a single server.
Known problems and limitations Problem description Details Navisphere Server Utility - Providing access to a snapshot on the secondary server can take up to 30 seconds. This issue has been seen only on Windows Server 2003 servers running PowerPath MPIO attached to an iSCSI AX-series storage system. (124230) Frequency: Every Time Prevention/resolution: None.
Known problems and limitations Problem description Details Navisphere Express – The following text string was not correctly internationalized. It will always appear in English. The specified user already exists. Frequency: Every time Prevention/resolution: Please refer to the localized release notice to obtain the translated version of this string. Navisphere Express – The following text string was not correctly internationalized. It will always appear in English.
Technical notes Technical notes This section contains information that will help with the installation, use, and management of the storage system. It provides generic information that applies to all platforms as well as platform-specific information. AX150SC, AX150SCi, AX150, and AX150i notes SP startup For dual-SP storage systems (AX150 or AX150i), EMC recommends that you reboot an SP only during periods of low I/O activity.
Technical notes On a disk module removal, the blue lights for the other disk modules return to a normal state: on or blinking due to I/O in progress. The storage system appears to have resumed normal operation. Database disk module replacement You should replace disk module 0, 1 or 2 only when the storage system is fully operational. The disk modules in these slots are FLARE OE database disk modules.
Technical notes VMware ESX Server configuration and usage notes Also see the notes in the “Installation” section. General limitations The following configuration limitations and caveats apply regardless of whether Navisphere Express or Navisphere Manager is used to manage an AX150-series storage system. Use of the Navisphere Server Utility View/Update Server to SP connections option under a guest OS running in a virtual machine will cause incorrect server information to be displayed in Navisphere.
Documentation Documentation The AX150 support website where you accessed these release notes also contains the most up-to-date documents and troubleshooting trees for this product release. The AX150-Series Documentation CD (P/N 053-001-518) that shipped with the storage system also contains documents and troubleshooting trees for this product release; however, they are superceded by those on the AX150 support website. The troubleshooting trees on the AX150 support website are updated frequently.
Documentation Update to AX150-Series - Installing an iSCSI Storage System with a Network Connection to a Windows Server and AX150-Series - Installing an iSCSI Storage System with a Direct Connection to a Windows Server Dynamic disks Contrary to what the installation guides say, do not upgrade a disk in an iSCSI storage system to a dynamic disk when writing a digital signature to the disk. Dynamic disks are not supported by the Microsoft iSCSI Software Initiator.
Documentation Update to PowerPath release notes All AX150-series installation, planning, and troubleshooting documents and software are located on the AX150 support website. For information on accessing the site, refer to the support documentation that shipped with your storage system. Refer only to these documents for prescribed installation and troubleshooting tips when using your AX150-series storage system.
Software media, organization, and files Software media, organization, and files The following table lists the software and documentation media for this product release. 28 Part Number CD-ROM 053-001-273 AX-Series Server Support CD 053-001-458 EMC PowerPath Version 4.3.2 w4.4 for Linux CD (Fibre Channel only) 053-001-460 EMC PowerPath Version 3.0.5 for Novell NetWare CD (Fibre Channel only) 053-001-340 EMC PowerPath Version 4.4.
Installation Installation The storage-system component (FLARE Operating Environment) of the Integrated Management Software is installed on the storage system at the factory prior to shipment. To install a new version of this software on the storage system, refer to the procedure for upgrading storage-system software on the AX150 support website. For information on accessing this site, refer to the support information that shipped with the storage system.
Installation For a storage system managed with Navisphere Express Follow the instructions in VMware ESX Server chapter in the EMC Installation Roadmap for CX3-Series, CX-Series, AX-Series, or FC-Series Storage Systems with the following exceptions: Install the Navisphere Initialization Utility and Navisphere Server Utility from the AX-Series Server Support Products CD that shipped with the storage system.
Installation VMware ESX Server guest OS installation instructions When installing the Navisphere Server Utility on a Windows guest OS virtual machine, it is important that you answer No to the question Do you want information about this server to be updated every time the server starts? Failing to do so can result in misleading server information in Navisphere Express displays.
Troubleshooting and getting help Troubleshooting and getting help To troubleshoot problems with your AX150SC, AX150SCi, AX150, and AX150i storage system, use the troubleshooting trees in the “Troubleshoot” section on the AX150 support website or the AX150Series Documentation CD. You must use the troubleshooting trees before your service provider will send you a replacement part. To launch the troubleshooting trees, click Interactive help tool in the “Troubleshoot” section.
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