*********************************************************************** * Version History for the IBM DS4000 Fibre Channel Hard Disk Drive and * * EXPxxx drive expansion enclosure ESM Firmware Update Pack * * Version 1.57 * ************************************************************************ NOTE TO SERVICE ?Reference RETAIN # N/A (C) Copyright International Business Machines Corporation 1999, 2006. All rights reserved. US Government Users Restricted Rights - Use, duplication, or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Note: Before using this information and the product it supports, read the general information in "Notices and trademarks?in this document. Last Update: 01/28/2008 ========================================================================== Version History for the IBM DS4000 Fibre Channel Hard Disk Drive and EXPxxx drive expansion enclosure ESM Firmware Update Pack ========================================================================== 1. IBM DS4000 FC Hard Disk and EXP100/420/710/810 ESM Update Program Version 1.57 - 01/26/2008 Updated the EXP710 ESM firmware to 9673. Updated the EXP810/EXP420 ESM firmware to 98B3. - Fix 386583, CR128599/CR131243/CR131110 ESM upgrade to 9661 on EXP710s fails on DS4500. Description: While attempting to update the ESM fw from 9639 to 9661. One channel always went down and it only recovered after a ESM with fw 9640 has been installed. An investigation revealed that the ESM that is directly connected to a channel will pull the channel down if it had ESM code 9661. After the EXP710 has been upgraded to 9661, a drive channel went down, All ESMs that are connected to the drive channel are seen as unknown. On channel that did not go down, the Drive channels are seen as optimal. All other drive channels are going down as soon as a ESM with fw 9661 is connected to it. The event was triggered by some DS4500 controllers (and likely other) were found to have a problem, related to CR 95892. These controllers failed to connect to EXP710 at 96.43 or later, due to CRC errors caused during the EXP710 SOC PTBI Lite diagnostic. This is apparently due to minor timing differences in the Tachyons on the DS4500. Where Seen: When updating ESM Firmware (fw) from 9639 to 9661 when system is at 06.12.56.00. Symptom: EXP710 ESMs connected directly to the controller will have the link to controller stay down after a FW upgrade. In the 96.43 SBOD code, the PTBI Lite to PTBI Regular toggling was removed to resolve CRs 108149 and 94410. Resolution: The issue was resolved by adding in enhanced PTBI toggling, where PTBI Lite would be tried for 3 iterations before switching to PTBI Regular. Updated the HDS725050KLA360 drive firmware files to CTA. CTA fixes listed below: -SDB FIS A1 with an invalid SActive bit is sent to the host during NCQ Write operations. The following conditions can result in this: * Write Cache Disable * Mixed Non-NCQ / NCQ Write workload * Write DMA command followed by a sequential Write FPDMA command * FW includes performance improvement for NCQ Sequential Write with Write Cache Disable After Write DMA command completes, used cache segment is left active, then a subsequent sequential Write FPDMA command executes where a cache scan results in a Sequential Hit to the Active cache segment. This results in sequential Write FPDMA and Write DMA extending write operations to the disk. After all write data has been completed to disk, firmware tries to send SDB FIS A1 for NCQ Write command from the non-NCQ write path. This results in a invalid SDB FIS being sent to the host. The fix is to Check previous command is NCQ before allowing firmware to execute new NCQ command as sequential. Firmware Changes in LP1158: New default setting for SERDES values in Polaris card image. New defaults settings value = RC_RX_EQ={10,1,0,10,1,0}. New settings were requested by manufacturing in order to speed up manufacturing processes. This firmware the same as LP1157 but with this default setting value added. Version 1.56 - 12/03/2007 Updated the EXP710 ESM firmware to 9663. Version 1.55 - 10/31/2007 Replace to correct ST3500641NS driver firmware in SATA_HDD_SM9x_format folder. Firmware header string was changed from... ST3500641NS 39M4517 39M0181 IBM to... ST3500641NS 39M4557 39M0181 IBM. This corrected error message of "drive firmware is incompatible". Repackaged and reposted to fix corrupted version of EXP810 ESM firmware 98A3 and to fix corrupt hard disk firmware files contained in the x_HDD_SM9x_format folders (10/24/2007). Updated the ST373455FC, ST3146855FC, ST3300655FC drive firmware files to B977. This firmware has a fix for manufacturing only firmware updates. Firmware Changes in LP1157: 52269 ENG_411 Polaris build that has the TOV for the spin-up increased to 300 seconds 51805 ENG_402 Final work around for LISM handling issue in a open loop situation and DLM=0 51808 Possible lost inbound frames 51832 ABTS for an IO in the task list doesn't get BA_ACC 52085 ENG_407 PANIC TARGET 1 77 - Target FC IB parity error. 52089 ENG_409 Drive fault when sector 0 is not readable on startup Updated the ST3500630NS and ST3750640NS drive firmware files to 3.AEP. Updated the EXP100 ESM firmware to 9566. Updated the EXP420 ESM firmware to 98A3. 128871/128502 (CL #WIC~128502) Boot Panics When Power Supply with a Bad I2C bus is installed 128873 (RW #WIC~127755) (CL #WIC~127754) (CAL05184) For SEOC Retry, increase retries and add debug dump 128874 (CL #WIC~127984) (TD_PT24173) ESM failed during continual upgrade/downgrade 123473 mfgSubsystemLineShow "AltESMRunning" command is failing 124377/124378 (CL #WIC~124071) (2-178252461) Bad Zone Recovery did not activate on li 125459 Husker panics or is reset by alternate during State Capture upload 117836 CLI command logClear during SES stress test results in a watchdog timer panic 119116 Move Log Buffer Init Before SPI Bus Init in System Initialization 121952 (CL #WIC~121564) SOC SERDES pwr reg at 2 gig changed Updated the EXP710 ESM firmware to 9662. Updated the EXP810 ESM firmware to 98A3. 128871/128502 (CL #WIC~128502) Boot Panics When Power Supply with a Bad I2C bus is installed 128873 (RW #WIC~127755) (CL #WIC~127754) (CAL05184) For SEOC Retry, increase retries and add debug dump 128874 (CL #WIC~127984) (TD_PT24173) ESM failed during continual upgrade/downgrade 123473 mfgSubsystemLineShow "AltESMRunning" command is failing 124377/124378 (CL #WIC~124071) (2-178252461) Bad Zone Recovery did not activate on li 125459 Husker panics or is reset by alternate during State Capture upload 117836 CLI command logClear during SES stress test results in a watchdog timer panic 119116 Move Log Buffer Init Before SPI Bus Init in System Initialization 121952 (CL #WIC~121564) SOC SERDES pwr reg at 2 gig changed Version 1.54 - 6/14/2007 Updated the MAX3036FD, MAX3073FD, and MAX3147FD drive firmware files to version S708. This firmware has the fix to the drive reporting an invalid frame as an 04/44/98 internal hardware error rather than a 0b/44/98 retryable error. Version 1.53 - 4/26/2007 Updated EXP710 ESM firmware to 9661 to - Support the intermix of EXP810, EXP710 and EXP100 enclosures behind a DS4300, DS4500, DS4700 and DS4800 storage subsystem with controller firmware 6.23.xx.xx or later. - Fix 94410 Critical error DRIVE_TRAYS_NOT_GROUPED_TOGETHER. MEL Event type 2835 Drive trays not cabled correctly. Fixed by adding the same SEOC retry mechanism as used in EXP420/EXP810 ESM firmware. Updated EXP420/EXP810 ESM firmware to 9898 to support - The intermixing of the Fibre Channel and SATA E-DDMs within the same DS4700 storage subsystem or EXP810 drive expansion enclosure. - The intermix of EXP810, EXP710 and EXP100 enclosures behind a DS4300, DS4500, DS4700 and DS4800 storage subsystem with controller firmware 6.23.xx.xx or later. Updated the ST336605FC and ST373405FC drive firmware files to version B34C This firmware version has the fix to the drive handling of Fibre Channel LIPs and LPEs primitives, which is required to prevent drives from being incorrectly marked as failures when having EXP810s in the DS4300 and the DS4500 drive loop(s.) Updated the ST373455FC, ST3146855FC, and ST3300655FC drive firmware files to version B976. This firmware version has the fix to the drive green LED is off when idle after a power cycle. The LED blinks with activity and the drive is still optimal. Version 1.52 - 1/17/2007 Updated EXP420/EXP810 ESM firmware to 9884 for the following fixes. - 111133 Fixed improper fibre channel loop initialization (LIP) injection for disk drive devices. ESM firmware was obtaining the wrong arbitrated loop physical address (ALPA) resulting in a mismatched drive configuration. - 114285 Fixed ESM failures due to flash timeout. EXP810 indicates ".8". - 114295 Fixed ESM with wrong tray ID when swapped. - 114298 Fixed multiple drive failures when processor has failed (".8). Version 1.51 - 10/30/2006 Include the following required updates to support the intermix between the EXP810 and EXP100 storage expansion enclosures and the attachment of EXP810s to the DS4300 and DS4500 subsystems. - Updated the EXP810 ESM firmware to 9881 - Updated the EXP710 ESM firmware to 9640 - Update the drive firmware of the following Fibre Channel drives to the levels as stated in the table below. The fix to the drive handling of Fibre Channel LIPs and LPEs primitives, which is required to prevent drives from being incorrectly marked as failures when having EXP810s in the DS4300 and the DS4500 drive loop(s.) --------------------------------------------- | FC Drive Product ID | Firmware Version | --------------------------------------------- | ST3146807FC | B35F | | ST373307FC | B35F | | ST336607FC | B35F | | ST318307FC | B35F | --------------------------------------------- | ST318453FC | B95E | | ST336753FC | B95E | | ST373453FC | B95E | --------------------------------------------- | ST3146854FC | B96C | | ST373454FC | B96C | | ST336754FC | B96C | --------------------------------------------- | ST3146954FC | B90A | | ST373554FC | B90A | | ST336854FC | B90A | --------------------------------------------- Version 1.50 - 5/24/2006 Updated the EXP700 ESM firmware to 9330 to incorporate the following fix. - 999718/99956 - several 0x280D and/or 0x280C errors incorrectly posted in the subsystem event (MEL) log after the DS4000 controller firmware is updated to 6.12.16.00 or later. These errors mislead the customers into thinking that they are having hardware failures when there is none. Updated the EXP710 ESM firmware to 9639 to incorporate the following fixes/updates. - Fix the i2c bus timeout that caused ESM incorrectly reporting hardware failures (90949/90152). - Fix the i2c bus read problem in the ESM modules that resulted in several 0x280D and/or 0x280C errors incorrectly posted in the subsystem event (MEL) log after the DS4000 controller firmware is updated to 6.12.16.00 or later. These errors mislead the customers into thinking that they are having hardware failures when there is none (99861/99718). - Fix the "drive tray not connected correctly" in DS4800 storage subsystem with EXP810s and EXP710s intermixing in the same drive channels (100949/99810) - Improve ESM handling of internal EXP710 i2c bus errors (98007/cal05913). - Shorten the ESM reboot time to 15 seconds to allow faster recovery during DS4000 storage subsystem startup or after ESM firmware download (102261.) Updated the EXP810 ESM firmware to 9865 to support the new 4Gbps fibre channel drive modules and to fix the memory leak in the EXP810 ESM SES API code, which could result in a depletion of ESM memory resources. (101242) Updated drive firmware for the fibre channel drives with the following Product ID strings HUS103073FLF21, HUS103030FLF21 and HUS103014FLF21 to JFQ8 to fix a potential incompatibility problem with the new DS4000 4Gbps hard drive options when hot inserting the new DS4000 4Gbps drives in the same DS4000 EXP drive expansion enclosure that these drives are located. The 4Gbps drives will be operated at 2Gbps mode in this condition. It also incorporate maintenances fixes for the several low-severity problems. General released drive firmware version B909 for the 4Gbps fibre channel drives with the following Product ID strings - ST336854FC, ST373554FC and ST3146954FC. Version 1.49 - 2/17/2006 Updated drive firmware for the fibre channel drives with the following Product ID strings - ST336754FC, ST373454FC and ST3146854FC - to version B96B to correct the reporting of IBM hard drive part number. 2. IBM DS4000 FC Hard Disk and EXP500/700/710 ESM Update Program Version 1.48 - 11/22/2005 Updated drive firmware for the fibre channel drives with the following Product ID strings - ST336754FC, ST373454FC and ST3146854FC - to version B969 to turn SMART PERF bit on to improve drive latency. Version 1.47 - 10/24/2005 Updated the EXP700 ESM firmware to 9329 to incorporate the following fix. - 93692/90152/88897 (C294615) - several 0x280D and/or 0x280C errors incorrectly posted in the subsystem event (MEL) log after the EXP700 ESM is upgraded to 9328. Version 1.46 - 07/26/2005 Updated the EXP700 ESM firmware to 9328 to incorporate maintenance fixes. - 90152 - ESM firmware has a too short i2c timeout value causing unnecessary device failures reported - 280D errors after upgrading EXP700 ESMs to ESM firmware version 9327 (C280030) Version 1.45 Updated the EXP710 ESM Firmware to 9631 to incorporate maintenance fixes. - Fix the notification problem between the Switch-JBOD chips (SOC) in the EXP710 ESM during the DS4000 storage subsystem powering up that might caused the EXP710 ESMs to falsely believe they were not connected to other EXP710 ESMs. This in turn lead the DS4000 controllers to think that the EXP710 drive enclosures were not properly clustered together (83970). - Fix the problem that might cause drive(s) to report a loss of redundancy after hot swapping the EXP710 ESMs as part of a ESM replacement procedure. The problem was caused by the SerDes PLLs on the SOC chips in the EXP710 ESMs locking onto the wrong frequency at SOC power-up, causing loss of access to drive(s). As part of this change to allow the EXP710 ESM time to boot up and stabilize after being hot-plugged, the EXP710 ESM firmware will now wait 12 seconds before unbypassing the external SFP connections. One visible external indicator of this change is that the EXP710 ESM SFP ports will flash for 12 seconds while they are held in bypass, until they are released to "automatic" /normal mode. (85965/TD_PT5331) Updated drive firmware for the fibre channel drives with the "Product ID" strings ST318453FC, ST336753FC and ST373453FC to B95B and ST373307FC, ST336607FC and ST3146807FC to B35C to incorporate enhancements and maintenance fixes. The list of enhancements are as followed: 1. Corrected & Updated List of Sense Key Error Codes that need trigger to save to disc of Log Page 3Ah to improve the amount of data collected during failures. 2. Fix drive false errors reporting while running background write/read test 3. Incorporate Drive State Dump feature which is controlled through mode page setting and can be initiated by SCSI command. 4. Change format of Inquiry page C4h to comply with IBM Manufacturing test enhancements 5. Add Enable ECHO_FAULT_LED_TO_ACTIVE feature so that the HDD drive fault blink codes are reported on HDD Activity LED instead of Fault LED. This will allow customers and field service to read the blink codes of faulty drives to assist with drive failure analysis. This new version of drive firmware also contains various maintenance fixes for field problems. Only the major severity problem fixes are listed below: 1. No Response to PLOGI 2. Drive goes bypass with no/rapid flashing of activity LED 3. Assert when busying port during CRC triggered abort 4. Target busy for >20 seconds after receiving LIP FF with WCE=0 5. Prediction not disabled following ABTS 6. No sense data after a check status 7. Need extra free retries for ROA issue causing 09/8000/C3 8. Format Immediate causes other commands to hang. 9. Port Busy Assert After Write merge Abort 10. Fix cleaning up of ALU Buffer Parity error prior to flashing LED 0x19 11. Assert Failure: Dirty Segment Flags was set upon releasing segment . This problem has been reported by some DS4000 customers 12. RLA algorithm overflow caused read command with long transfer to timeout. 13. Corrupted DRAM read cause link service command timeout 14. Drive Hanging due to not reselecting for a read command or hanging not sending the data for a read command 15. Assert with disk transfer ctb=null when a paused WCE restarts. 16. Targeted LIP Reset during data-in phase causes target to OPN itself.....WCE must be enabled. 17. Performance degradation on Write / Read until Reset is received. 18. Set "Perf" bit in mode page 1C to disable the Fly-Height measurement subset of SMART data collecting. In certain IO work load scenarios, this measurement might cause read latency spikes whenever it is invoked as part of the drive on-going SMART data collecting function. Updated drive firmware for the fibre channel drives with the following Product ID strings HUS103073FLF21, HUS103030FLF21 and HUS103014FLF21 to JFQ4 to incorporate maintenances fixes for the several low-severity problems. The most severe problem fixes are listed below: - drive hung after the OPN retry time-out occurred and the next queued command the was fetched (dequeued) from the command queue is the write command. - 60s timeout occurred for the random read/ write command when large number sequential reads are received and get full cache hits in different segments. - problem that could degrade the write sustain rate and 1Gbps write sequential performance. - drive went into degraded mode and reported 04/4400 forever after being reboot three times to recover from the drive S-RAM correction. Version 1.44 - 03/15/2005 Updated the EXP710 ESM Firmware to 9629 to incorporate maintenance fixes. - 81272 Drive-side timeouts with EXP710 on the DS4300 mreg (2) - 82461 (C259426) : drives do not spin up when incorrectly connecting EXP710/EXP700 in non-clustered setup (2) - 83528 (WIC~80458) two drive enclosure IDs of 0 on the loop after doing simulated ESM pulls (2) - 79542 Drive side timeouts during benchmarks when using EXP710 enclosures Updated the EXP700 ESM firmware to 9327 to incorporate maintenance fixes. - 82950 LIP not generated as drives join the loop...ESM does not complete diagnostics - 83188 2G ESM becomes unresponsive on fibre loop when peer has I2C failure - 83211 2G ESM sets SES bypass bits incorrectly when drive bypasses itself - 83812 Power cycle EXP700 trays caused loop stability issue due to improper LISM Version 1.43 Document the correct behavior when one inserts an ESM that does not have same ESM firmware version as the surviving ESM in the drive expansion enclosure in section 1.4 of the README file. Modify section 1.5 of the README file to show the new IBM recommended firmware upgrade sequence for the ESMs, controllers and hard drives in an DS4000 storage subsystem configuration. Version 1.42 - 10/21/2004 Repackage the Drive firmware files so that they are recognized as the drive firmware files by the DS4000 storage subsystem with controller firmware version 06.xx.xx.xx installed. Version 1.41 Updated EXP700 ESM Firmware to 9326 to correct memory corruption issue that caused the ESM port name to change on the loop, resulting in I/O errors. The memory corruption was occurring when the ESM sent a response frame that didn't get taken off the loop for any reason and came back to it, which might happen if one of the ports on the ESM or controller tray were bypassed at the right time. This was fixed with new Vitesse libraries. The new Vitesse libraries also fixed a problem where the Vitesse code was occasionally incorrectly removing some spawned tasks and preventing them from firing, which was causing problems with loop diagnostics. There were some additional changes to help make sure we report loop diagnostic failures correctly by adding retries to the code for turning on fault LEDs in case of temporary I2C failures. The new Vitesse libraries also fixed some issues we were seeing with unexpected LIPs on the loop under heavy I/O loads. 3. IBM DS4000 Hard Disk and EXP500 ESM Update Program Version 1.40 Updated EXP700 ESM Firmware to 9324 to correct false fan and temperature errors, correct problems where the drives in bays 11-14 would not spin up at power up, correct other drive side issues, and provide support for copper GBIC cabling for use only with the SAN Integrated subsystem. Updated EXP500 ESM Firmware to prevent accidental corruption from downloading the wrong firmware to the ESM. In environments where there are EXP500s and EXP700s in the same controller, it is IMPERATIVE that all EXP500s ESMs are updated to 9166 before the EXP700 ESM firmware is applied. Updated firmware for drives with Strings ST318304FC, ST336704FC, and ST173404FC to B338; ST318452FC and ST336752FC to B94a; ST318432FC and ST336732FC to B949; ST318453FC, ST336753FC and ST373453FC to B954; ST373307FC, ST336607FC and ST3146807FC to B356 to correct a problem that caused the drive to marked offline when a lip was received on both ports, corrected a problem where the light for the drive would be lit green even if it failed an internal diagnostic, corrected a problem where drives did not report the proper status when a correctable error was encountered, and corrected a performance problem when the drive did queued sequential writes. 4. IBM DS4000 Fibre Hard Disk and EXP500 ESM Update Program Version 1.30 Updated firmware for drives with ID strings of ST39103FC, ST318203FC, ST136403FC to B325; ST336605FC, ST373405FC to B346; ST318451FC, ST318452FC, ST336752FC to B946; ST318432FC, ST336732FC to B947 to correct a performance issue where the drives would recover slowly from Fibre Channel LIPs as well as mode page enhancements for better log reporting of drive activity. EXP500 ESM code is updated to 9166 to improve bypass diagnostics when a bad GBIC is detected, correct an error where a HDD replacement is logged when an ESM is replaced, correct a condition where the ESM reports incorrect EXP component information, and protects the ESM from accepting incorrect firmware. 5. IBM Fibre Hard Disk and EXP500 ESM Update Program Version 1.20 Updated firmware for drives with product ID strings of ST318304F, ST336704F and ST173404F to B337, ST318451F to B933 as well as disable write cache on all drives to prevent drives from being failed by controller under extreme circumstances 6. IBM Fibre Hard Disk Drive and EXP500 ESM Update Program Version 1.10 Added update of EXP500 ESM Firmware from 9150 to 9163 to prevent false fan alerts and correct diagnostic lights 7. IBM Fibre Hard Disk Drive Update Program Version 1.01 Updated firmware for drives with product ID strings of DDYS and DPSS to S9HA 8 IBM Fibre Hard Disk Drive Update Program Version 1.00 Initial Release __________________________________________________________________________ ========================================================================== Version History for ESM firmware ========================================================================== 1. For EXP810 drive expansion enclosure A. ESM firmware 9898 to support - The intermixing of the Fibre Channel and SATA E-DDMs within the same DS4700 storage subsystem or EXP810 drive expansion enclosure. - The intermix of EXP810/EXP710 and EXP100 enclosures DS4300, DS4500, DS4700 and DS4800 storage subsystem with controller firmware 6.23.xx.xx or later. B. ESM firmware 9884 to support the following field fixes - 111133 Fixed improper fibre channel loop initialization (LIP) injection for disk drive devices. ESM firmware was obtaining the wrong arbitrated loop physical address (ALPA) resulting in a mismatched drive configuration. - 114285 Fixed ESM failures due to flash timeout. EXP810 indicates ".8". - 114295 Fixed ESM with wrong tray ID when swapped. - 114298 Fixed multiple drive failures when processor has failed (".8). C. ESM firmware 9881 to support the intermix of EXP710 and EXP810 with EXP100 storage expansion enclosures or the attachment of EXP810s in DS4300 and DS4500 subsystems with controller firmware version 6.19.xx.xx or later. D. ESM firmware 9865 to support the new 4Gbps fibre channel drive modules and to fix the memory leak in the EXP810 ESM SES API code (101242). E. ESM firmware 983A is the initial firmware 2. For EXP710 drive expansion enclosure A. Version 9661 to support - Support the intermix of EXP810/EXP710 and EXP100 enclosures behind a DS4300, DS4500, DS4700 and DS4800 storage subsystem with controller firmware 6.23.xx.xx or later. - Fix 94410 Critical error DRIVE_TRAYS_NOT_GROUPED_TOGETHER. MEL Event type 2835 Drive trays not cabled correctly. Fixed by adding the same SEOC retry mechanism as used in EXP420/EXP810 ESM firmware. B. Versionn 9640 to support the intermix of EXP710 and EXP810 with EXP100 storage expansion enclosures or the attachment of EXP810s in DS4300 and DS4500 storage subsystems with controller firmware version 6.19.xx.xx or later. C. Fixes in ESM firmware 9639 - Fix the i2c bus timeout that caused ESM incorrectly reporting hardware failures (90949/90152). - Fix the i2c bus read problem in the ESM modules that resulted in several 0x280D and/or 0x280C errors incorrectly posted in the subsystem event (MEL) log after the DS4000 controller firmware is updated to 6.12.16.00 or later. These errors mislead the customers into thinking that they are having hardware failures when there is none (99861/99718). - Fix the "drive tray not connected correctly" in DS4800 storage subsystem with EXP810s and EXP710s intermixing in the same drive channels (100949/99810) - Improve ESM handling of internal EXP710 i2c bus errors (98007/cal05913). - Shorten the ESM reboot time to 15 seconds to allow faster recovery during DS4000 storage subsystem startup or after ESM firmware download (102261.) D. Fixes in ESM firmware 9631 - Fix the notification problem between the Switch-JBOD chips (SOC) in the EXP710 ESM during the DS4000 storage subsystem powering up that might caused the EXP710 ESMs to falsely believe they were not connected to other EXP710 ESMs. This in turn lead the DS4000 controllers to think that the EXP710 drive enclosures were not properly clustered together (83970). - Fix the problem that might cause drive(s) to report a loss of redundancy after hot swapping the EXP710 ESMs as part of a ESM replacement procedure. The problem was caused by the SerDes PLLs on the SOC chips in the EXP710 ESMs locking onto the wrong frequency at SOC power-up, causing loss of access to drive(s). As part of this change to allow the EXP710 ESM time to boot up and stabilize after being hot-plugged, the EXP710 ESM firmware will now wait 12 seconds before unbypassing the external SFP connections. One visible external indicator of this change is that the EXP710 ESM SFP ports will flash for 12 seconds while they are held in bypass, until they are released to "automatic" /normal mode. (85965/TD_PT5331) E. Fixes in ESM firmware 9629 - 81272 Drive-side timeouts with EXP710 on the DS4300 mreg (2) - 82461 (C259426) : drives do not spin up when incorrectly connecting EXP710/EXP700 in non-clustered setup (2) - 83528 (WIC~80458) two drive enclosure IDs of 0 on the loop after doing simulated ESM pulls (2) - 79542 Drive side timeouts during benchmarks when using EXP710 enclosures F. ESM firmware 9627 is the initial firmware 3. For EXP700 drive expansion enclosure A. Fixes in ESM firmware 9330 - 999718/99956 - several 0x280D and/or 0x280C errors incorrectly posted in the subsystem event (MEL) log after the DS4000 controller firmware is updated to 6.12.16.00 or later. These errors mislead the customers into thinking that they are having hardware failures when there is none. B. Fixes in ESM firmware 9329 - 93692/90152/88897 (C294615) several 280D and/or 280C errors incorrectly posted in the subsystem event logs after the EXP700 ESM is upgraded to 9328. C. Fixes in ESM firmware 9328 - 90152 - ESM firmware has a too short i2c timeout value causing unnecessary device failures reported - 280D errors after upgrading EXP700 ESMs to ESM firmware version 9327 (CMVC 280030) D. Fixes in ESM firmware 9327 - 82950 LIP not generated as drives join the loop...ESM does not complete diagnostics - 83188 2G ESM becomes unresponsive on fibre loop when peer has I2C failure - 83211 2G ESM sets SES bypass bits incorrectly when drive bypasses itself - 83812 Power cycle EXP700 trays caused loop stability issue due to improper LISM E. Fixes in ESM firmware 9326 - 78870 TD_PT3513 Read I/0 error occurred during controller fail over, drive fail, and sysR (3) - 79319 (#73007) Update ESM firmware with changes from latest Vitesse SDK, version 1.97 (2) - 79320 (#73249) TD_PT1612 Excessive Wdog Lips from bad cable cause ESM to fail (2) - 79321 (#77001) Disk side Fibre channel errors during volume creation operations (2) - 72038 ESM_timeout_set_too_high (2) - 72499 2G ESM becomes unresponsive on fibre loop during controller reboot test (2) F. Fixes in ESM firmware 9324 - 67365 Drives fail during reconstruction after power down of drive tray - 68029 (#67500) SFP VPD information are not retrieved and displayed correctly - 68040 (#67377) Rapid commands to SES on ESM causes it to hang - 63966 Controller cannot map drives due to 2G FC ESM reporting incorrect drive hard ALPAs - 63972 Controller cannot map drives in tray 7 - 65464 ESM reboots if a Receive Diagnostic for page 0x80 is sent - 65463 When ESM midplane EEPROM fails, potential for data corruption exists - 64949 2G ESM does not report status correctly if alt ESM has failed I2C bus - 64768 (#63966) Controller cannot map drives due to 2G FC ESM reporting incorrect drive - 62960 ESM bypass reporting may cause incorrect mapping or mapping failures - 62838 Drive identify LED stops blinking when ESM is removed - 62052 ESM does not always reporting VPD data for SFP when ESM is removed and then reinserted - 67059 (#66864) Power supply fault LEDs erratic behavior using dual ESM's - 66220 2G ESM doesn't detect alt ESM removal G. ESM firmware 9319 is the initial firmware 4. For EXP500 drive expansion enclosure A. Fixes/Enhancements in ESM firmware 9166 - Improve bypass diagnostics when a bad GBIC is detected. - Correct an error where a hard drive (HDD) replacement is logged when an ESM is replaced. - Correct a condition where the ESM reports incorrect EXP component information. - Protects the ESM from accepting incorrect firmware. B. Fixes in ESM firmware 9163 - Prevent false fan alerts and correct diagnostic lights C. ESM firmware 9150 is the initial firmware 
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