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OpenVMS VMS73_FIBRE_SCSI-V0200 Alpha V7.3 FibreChannel/SCSI ECO Summary

TITLE: OpenVMS VMS73_FIBRE_SCSI-V0200 Alpha V7.3 FibreChannel/SCSI ECO Summary New Kit Date: 31-OCT-2001 Modification Date: Not Applicable Modification Type: Updated Kit Supersedes VMS73_FIBRE_SCSI-V0100 NOTE: An OpenVMS saveset or PCSI installation file is stored on the Internet in a self-expanding compressed file. For OpenVMS savesets, the name of the compressed saveset file will be kit_name.a-dcx_vaxexe for OpenVMS VAX or kit_name.a-dcx_axpexe for OpenVMS Alpha. Once the OpenVMS saveset is copied to your system, expand the compressed saveset by typing RUN kitname.dcx_vaxexe or kitname.dcx_alpexe. For PCSI files, once the PCSI file is copied to your system, rename the PCSI file to kitname.pcsi-dcx_axpexe, then it can be expanded by typing RUN kitname.pcsi-dcx_axpexe. The resultant file will be the PCSI installation file which can be used to install the ECO. Copyright (c) Compaq Computer Corporation 2001. All rights reserved. OP/SYS: OpenVMS Alpha COMPONENT: FibreChannel SCSI Drivers SOURCE: Compaq Computer Corporation ECO INFORMATION: ECO Kit Name: VMS73_FIBRE_SCSI-V0200 DEC-AXPVMS-VMS73_FIBRE_SCSI-V0200--4.PCSI ECO Kits Superseded by This ECO Kit: VMS73_FIBRE_SCSI-V0100 ECO Kit Approximate Size: 1888 Blocks Kit Applies To: OpenVMS Alpha V7.3 System/Cluster Reboot Necessary: Yes Rolling Re-boot Supported: Yes Installation Rating: INSTALL_1 1 : To be installed by all customers. Kit Dependencies: The following remedial kit(s) must be installed BEFORE installation of this kit: None In order to receive all the corrections listed in this kit, the following remedial kits should also be installed: None ECO KIT SUMMARY: An ECO kit exists for FibreChannel and SCSI Drivers on OpenVMS Alpha V7.3. This kit addresses the following problems: NEW FUNCTIONALITY INTRODUCED IN VMS73_FIBRE_SCSI-V0200 KIT: o Interrupt and Response Coalescing is a functional option implemented in KGPSA firmware which allows LP8000 and LP9002 adapters to reduce the number of interrupts seen by a host. Given a response count and a delay time (in ms), the adapter can defer interrupting the host until that number of responses is available or until that amount of time has passed, whichever occurs first. This also makes each interrupt seen by the host more cost-effective because it will generally process more responses per interrupt than without Interrupt Coalescing. Images Affected: [SYSHLP.UNSUPPORTED]FC$CP.EXE [SYS$LDR]SYS$FGEDRIVER.EXE [SYS$LDR]SYS$PGADRIVER.EXE o You can turn on Interrupt and Response Coalescing with the following command: $ MCR SYS$ETC:FC$CP FGx [] - $_ [] - FGx : the type of FG device (FGA, FGB etc.). To determine which FG devices are present, refer to the section titled "Determining FGx Devices" - : Enables bit 1 = Response Coalescing and bit 0 = Interrupt Coalescing. - : Delay is in milliseconds and can range from 0 to 255 decimal. - Response count can range from 0 to 63 decimal. - Any negative value leaves a parameter unchanged. - Values returned are those which are current after any changes. The recommended command is: MCR SYS$ETC:FC$CP FGA 3 1 8 You should substitute FGA with whatever FG device you wish to configure. The command must be run once per boot for every Emulex FibreChannel adapter on which Interrupt Coalescing is to be enabled. Once enabled it will persist across adapter initializations, path switches, CPU affinity changes, etc., in other words, until the next boot. Interrupt Coalescing can be turned off by passing an "enables" value of 0. o In order to tell which FGx device(s) you have on your system, execute the following commands: $ ANALYZE/SYSTEM SDA>CLUE CONFIG/A Following is an excerpt of an example of the output of the above commands. Note that all fields are not included, only those needed to determine adapter type. Adapter Configuration: ---------------------- Port BusArrayEntry Device Name / HW-Id ---- ---------------- -------------------- FGA: FFFFFFFF.810FBC40 KGPSA-CA (Emulex LP8000) FGB: FFFFFFFF.810FBC78 KGPSA-** (Emulex LP9000) Interrupt and Response Coalesing will only operate on LP8000 and LP9002 adapters. If the device name is not listed you will you will need to EXAMINE the BusArrayEntry entry to tell whether the Adapter is an LP8000, LP9002 or an earlier type of adapter. Following is an example of the EXAMINE command: SDA> EXAMINE FFFFFFFF.810FBC40 FFFFFFFF.810FBC40: F80010DF.F80010DF "...." SDA> EXAMINE FFFFFFFF.810FBC78 FFFFFFFF.810FBC78: F90010DF.F90010DF "...." The field F80010DF.F80010DF shows that the adapter is an LP8000 adapter. The field F90010DF.F90010DF shows that the adapter is an LP9002 adapter. NEW FUNCTIONALITY INTRODUCED IN VMS73_FIBRE_SCSI-V0100 KIT: o This kit provides support for the KZPEA-DB Ultra 160 SCSI Storage Adapter. The Compaq KZPEA-DB SCSI Storage Adapter is a high-performance dual channel Ultra 160 SCSI adapter that connects external or internal SCSI storage devices to a PCI-based host Alpha system. The module provides multimode SCSI support for both Single-Ended (SE) and Low Voltage Differential (LVD) SCSI peripherals in a 33/66 Mhz PCI slot. The KZPEA adapter has the following features: o Provides full-featured dual-channel Ultra 160 SCSI host adapter with a 66/33 Mhz 64-bit PCI interface. o Supports Ultra160 data transfer rates up to 160 MB/sec on the 16-bit SCSI bus using LVD SCSI peripherals. o Supports mixed SCSI-2, Ultra2, and Ultra160 SCSI peripherals on Compaq Storageworks enclosures. o Supports hot-swapping/hot-adding of SCSI peripherals. Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE PROBLEMS ADDRESSED IN VMS73_FIBRE_SCSI-V0200 KIT: o For 8MM tapes only (eg. Exabyte, TZK15), a COPY command to a freshly initialized tape results in a fatal drive error whenever the COPY command is issued on a TMSCP client node. The error log shows that an Illegal Request has been sent to the drive. Images Affected: [SYS$LDR]SYS$MKDRIVER.EXE o INCONSTATE crash @SYS$PGADRIVER+AB78. See crash dump summary below. Crashdump Summary Information: ------------------------------ Bugcheck Type: INCONSTATE, Inconsistent I/O data base Current Process: NULL Current Image: Failing PC: FFFFFFFF.AA7D2B78 SYS$PGADRIVER+0AB78 Failing PS: 28000000.00000804 Module: SYS$PGADRIVER (Link Date/Time: 4-MAY-2001 13:43:31.82) Offset: 0000AB78 Images Affected: [SYS$LDR]SYS$FGEDRIVER.EXE [SYS$LDR]SYS$PGADRIVER.EXE PROBLEMS ADDRESSED IN VMS73_FIBRE_SCSI-V0100 KIT: o The system can hang due to IO's Timing Out, and the driver not re-trying the IO command. The IO timeout can be detected through the error log. Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE o The KZPEA SCSI adapter is seen as a disk and not a device. Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE o When an HSZ/HSG device reports mirror copy status events, the ERRCNT of the device is incremented. This gives the false impression that there is a problem with the device(s). Images Affected: [SYS$LDR]SYS$DKDRIVER.EXE o MountVerifyTimeouts do resets during heavy IO's. Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE o Add device recognition for the 7892 SCSI Adapter. Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE o Exception conditions, such as those resulting from power surges, disk errors or AUTOGEN operations, can produce hangs, crashes or data corruption in an SMP environment. Images Affected: [SYS$LDR]SYS$PKWDRIVER.EXE o Tape drive performance degrades significantly after a tape error. Images Affected: [SYS$LDR]SYS$MKDRIVER.EXE o Odd byte records read from tape to a memory buffer larger than the tape record results in one extra byte of data. Images Affected: [SYS$LDR]SYS$PKWDRIVER.EXE o Performance degrades after a bus reset. Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE o A Target negotiates a speed it can't support. Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE o The Emulex FibreChannel adapters support a feature called Interrupt & Response Coalescing which can significantly reduce the number of host interrupts the adapter generates. To enable this feature the driver must pass a response count and a delay in milliseconds to the adapter when it configures the FibreChannel link. This causes the adapter to defer interrupting the host until it has accumulated the requested number of responses or until the specified amount of time has passed, whichever occurs first. The feature has the added benefit of making each interrupt more cost-effective by driving up the average number of responses processed for each one. This kit adds SYS$ETC:FC$CP.EXE, an application which a privileged user can run to enable Interrupt & Response Coalescing, and a $QIO API to SYS$FGEDRIVER to handle the $QIO request. Images Affected: [SYS$LDR]SYS$FGEDRIVER.EXE o An f$getdvi ("tape","mt3_density") command does not show compaction correctly. Images Affected: [SYS$LDR]SYS$MKDRIVER.EXE o If a disk is mounted software write protected, when the disk enters and completes mount verification, the disk is software write enabled. Images Affected: [SYS$LDR]SYS$DKDRIVER.EXE o KZPEA takes too long to reconfigure hot-swapped disks Images Affected: [SYS$LDR]SYS$PKADRIVER.EXE o A system can experience CPUSPINWAIT Crashes. See Crash dump summary below. Crashdump Summary Information: ------------------------------ Bugcheck Type: CPUSPINWAIT, CPU spinwait timer expired Current Process: NULL Current Image: Failing PC: FFFFFFFF.80088384 SMP$TIMEOUT_C+00064 Failing PS: 18000000.00000804 Module: SYSTEM_SYNCHRONIZATION_MIN (Link Date/Time: 26-MAY-2001 22 :21:11.81) Offset: 00000384 Images Affected: [SYS$LDR]SYS$PKQDRIVER.EXE INSTALLATION NOTES: This kit requires a system reboot. Compaq strongly recommends that a reboot is performed immediately after kit installation to avoid system instability If you have other nodes in your OpenVMS cluster, they must also be rebooted in order to make use of the new image(s). If it is not possible or convenient to reboot the entire cluster at this time, a rolling re-boot may be performed. INSTALLATION INSTRUCTION: Install this kit with the POLYCENTER Software installation utility by logging into the SYSTEM account, and typing the following at the DCL prompt: PRODUCT INSTALL VMS73_FIBRE_SCSI /SOURCE=[location of Kit] The kit location may be a tape drive, CD, or a disk directory that contains the kit. Additional help on installing PCSI kits can be found by typing HELP PRODUCT INSTALL at the system prompt Special Installation Instructions: o Scripting of Answers to Installation Questions During installation, this kit will ask and require user response to several questions. If you wish to automate the installation of this kit and avoid having to provide responses to these questions, you must create a DCL command procedure that includes the following definitions and commands: 1. Define logical NO_ASK$BACKUP as TRUE 2. Define logical NO_ASK$REBOOT as TRUE 3. Add the following qualifiers to the PRODUCT INSTALL command and add that command to the DCL procedure. /PROD=DEC/BASE=AXPVMS/VER=V2.0 4. De-assign the logicals assigned For example, a sample command file to install the VMS73_FIBRE_SCSI-V0200 kit would be: $ DEFINE/SYS NO_ASK$BACKUP TRUE $ DEFINE/SYS NO_ASK$REBOOT TRUE $! $ PROD INSTALL VMS73_FIBRE_SCSI/PROD=DEC/BASE=AXPVMS/VER=V2.0 $! $ DEASSIGN/SYS NO_ASK$BACKUP $ DEASSIGN/SYS NO_ASK$REBOOT $ exit All trademarks are the property of their respective owners.

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