HP StorageWorks EVA4400 iSCSI Connectivity Option (mpx100b) 5.
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Description The EVA4400 iSCSI Connectivity Option (mpx100b) provides iSCSI connectivity to the HP StorageWorks 4400 Enterprise Virtual Array (EVA4400) Fibre Channel storage systems. You can order: • AJ713A with an EVA4400 storage system or to upgrade an existing EVA4400 storage system. This option includes one mpx100b hardware unit and the components needed for installation in any EVA cabinet.
• • • • • • Apple Mac OS X (Power Mac G5, Xserve, Mac Pro) Linux–Red Hat (32/64-bit, IA64) Linux–SUSE (x86 32/64-bit, IA64) Microsoft Windows Sun Solaris VMware ESX For the latest product support information, see SPOCK on the HP website: http://www.hp.com/storage/spock You must sign up for an HP Passport to access the website.
iSNS IP address and IPv4, IPv6 When the IP address for the iSNS server is changed from an IPv4 address to an IPv6 address, or from an IPv6 address to an IPv4 address, the command completes successfully but the change does not take place. Workaround Disable iSNS for the existing address before setting the new address. Sequence out-of-range errors—Microsoft initiator The CmdSN out of range error messages may be logged as Critical. You can view them by issuing a show logs command to the mpx100b.
If the following lines are added to the /kernel/drv/scsi_vhci.conf file with LUN 0 present, any mpathadm command will panic the server after reboot: device-type-scsi-options-list = “HP HSV”, “symmetric-option”; symmetric-option = 0x1000000; Workaround 1 During the initial Solaris iSCSI initiator setup, LUN 0 must be disabled from the mpx100b. To disable the Controller Lun AutoMap parameter using the mpx100b CLI: 1.
1. Use Telnet to connect to the mpx100b management port, or connect to the mpx100b serial port using the connector supplied by HP. NOTE: The mpx100b management port default IP address is 10.0.0.1/255.0.0.0. The mpx100b serial port default setting is 115200/8/n/1. 2. Log in using the following: User name: guest Password: password 3. Enable administrator privileges by entering the following: admin start config EVA4400 iSCSI Connectivity Option (mpx100b) 5.
4. Issue the lunmask rm command and follow the prompts to remove the Solaris iSCSI initiator from each iSCSI-presented target. For example: > telnet 10.6.7.65 login: guest password: password >admin start password: config mpx100b (admin) #> lunmask rm Index (WWNN,WWPN/iSCSI Name) — ——— ————————————— 50:00:1f:e1:50:00:2f:70,50:00:1f:e1:50:00:2f:7e Please select a Target from the list above ('q' to quit): 0 LUN Vendor — ——— — 0 HP 1 HP 2 HP 3 HP 4 HP . . .
• qn.1986-03.com.hp:fcgw.mpx100 is the standard IQN for all mpx100s. • 1 is the iSCSI part number. • 50001fe150002f70.50001fe150002f7f is the presented EVA port. If you enter a name in the Symbolic Name attribute, the iSCSI port IQN target name presented to iSCSI initiators and iSNS servers shows the Symbolic Name. For example, the following iSCSI port IQN target name has the Symbolic Name blg2-lab embedded in it: iqn.1986-03.com.hp:fcgw.mpx100b:blg2-lab.1.50001fe150002f70.50001fe150002f7f Where: • iqn.
Workaround The CHAP setup issue will be resolved in a future release of the Linux initiator. Windows drops the IP connection Certain I/O workloads can result in LUN removal because Windows has dropped the IP connection. Workaround The connection can be restored by rebooting the system.
The type designator consists of the following parameters: • The string iqn followed by a dot (.) • A date code, in yyyy-mm format, followed by another dot (.) • A reverse domain name • (Optional) A string followed by a colon (:) If you are using only ASCII characters (U+0000 to U+007F), the following characters are allowed: • • • • • ASCII ASCII ASCII ASCII ASCII dash character (’-’ = U+002d) dot character (’.’ = U+002e) colon character (’:’ = U+003a) lowercase characters (’a’..’z’ = U+0061..
Windows iSCSI initiators must add Tcp1323Opts to registry CAUTION: Using the Registry Editor incorrectly can cause serious problems that may require reinstallation of the operating system. Back up the registry before making any changes. Use the Registry Editor at your own risk. Timestamps enable TCP to measure the round-trip time (RTT) accurately to adjust retransmission timeouts.
Ordered tagged commands Ordered delivery of iSCSI commands is not guaranteed for applications running on iSCSI initiators that use ordered tagged commands. HP is investigating a fix for a future release of mpx100b firmware. Private iSCSI network for mpx100b GbE ports To ensure adequate performance and data security, HP recommends using a private Gigabit Ethernet (GbE) network between the iSCSI initiators and the mpx100b in any iSCSI configuration.
