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AC power supply and fan unit LEDs

This section describes the primary power supply and fan unit LEDs on the DS4700
Express Storage Subsystem (models 70A, 70H, 72A, and 72H).

Table 40. Power supply and fan unit LEDs

Number

LED

Normal Status

Problem Status

Power supply and fan unit
Power

Off

Service Action Allowed
(OK to Remove)

Off

Service Action Required
(Fault)

Off

Direct Current Enabled

Off

DC power supply and fan unit LEDs

This section describes the primary dc power supply and fan unit LEDs on the
DS4700 Express Storage Subsystem (models 70S, 70T, 72S, 72T).

ds470007

Figure 96. Power supply and fan unit LEDs

126

IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide

Содержание DS4700 EXPRESS

Страница 1: ...IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide GC26 7843 05...

Страница 2: ......

Страница 3: ...IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide GC26 7843 05...

Страница 4: ...to read the general information in the Safety on page xv and Notices on page 215 sections Sixth Edition November 2011 Copyright IBM Corporation 2010 US Government Users Restricted Rights Use duplicati...

Страница 5: ...y checklist 3 Product updates and support notifications 5 Best practices guidelines 5 Storage subsystem components 6 Enhanced Disk Drive Modules E DDMs 7 Controllers 8 Connectors switch and enclosure...

Страница 6: ...56 Working with SFPs and fiber optic cables 56 Handling fibre optic cables 57 Installing SFP modules 58 Removing SFP modules 60 Using LC LC fibre channel cables 61 Connecting an LC LC cable to an SFP...

Страница 7: ...stem 101 Storage subsystem management methods 101 Host agent in band management method 102 Direct out of band management method 102 Connecting hosts to the DS4700 Express 104 Fibre channel connections...

Страница 8: ...an SFP module 177 Replacing a midplane 178 Chapter 6 Hardware maintenance 183 General checkout 183 Solving problems 183 Parts listing 188 Appendix A Records 191 Identification numbers 191 Storage subs...

Страница 9: ...atibility Directive 219 Deutschland Einhaltung des Gesetzes ber die elektromagnetische Vertr glichkeit von Ger ten 220 Zulassungsbescheinigung laut dem Deutschen Gesetz ber die elektromagnetische Vert...

Страница 10: ...viii IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 11: ...fan unit 50 29 Replacing a dc power supply and fan unit 52 30 Replacing an E DDM 53 31 Installing a Telco bezel 54 32 Storage subsystem seven segment enclosure ID on models 70 and 72 56 33 Recommende...

Страница 12: ...S4700 Express and one EXP810 storage expansion enclosure Recommended cabling 89 72 One DS4700 Express and two EXP810 storage expansion enclosures behind a pair of DS4700 drive ports 90 73 One DS4700 E...

Страница 13: ...e latch plastic variety 147 106 Unlocking the SFP module latch wire variety 148 107 Removing a controller from the DS4700 Express 148 108 Installing a controller 149 109 Removing and replacing a bezel...

Страница 14: ...xii IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 15: ...ls 71 24 DS4700 Express Storage Subsystem Model 72 host ports and drive channels 71 25 DS4700 Express drive ports connected to EXP810 ESM ports labeled 1B 79 26 DS4700 Express drive ports connected to...

Страница 16: ...user tasks 205 60 DS4500 Storage Subsystem document titles by user tasks 206 61 DS4400 Storage Subsystem document titles by user tasks 207 62 DS4300 Storage Subsystem document titles by user tasks 20...

Страница 17: ...ous to you A danger statement is placed just before the description of a potentially lethal or extremely hazardous procedure step or situation v Caution These statements indicate situations that can b...

Страница 18: ...in the following table when installing moving or opening covers on this product or attached devices To Connect To Disconnect 1 Turn everything OFF 2 First attach all cables to devices 3 Attach signal...

Страница 19: ...n those specified herein might result in hazardous radiation exposure DANGER Some laser products contain an embedded Class 3A or Class 3B laser diode Note the following Laser radiation when open Do no...

Страница 20: ...connected from the power source 1 2 Statement 8 CAUTION Never remove the cover on a power supply or any part that has the following label attached Hazardous voltage current and energy levels are prese...

Страница 21: ...be located within the same premises as this equipment v Switching or disconnecting devices shall not be in the earthed circuit conductor between the dc source and the point of connection of the earthi...

Страница 22: ...essories sold with this product will expose you to lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling xx IBM System...

Страница 23: ...off the DS4700 Express Storage Subsystem recover from an overheated power supply and fan unit troubleshoot and interpret LEDs Chapter 5 Replacing components on page 145 contains step by step instructi...

Страница 24: ...e Guide v DS4400 Fibre Channel Storage Server Installation and Support Guide v DS4500 Storage Subsystem Installation User s and Maintenance Guide v DS4700 Express Storage Subsystem Installation User s...

Страница 25: ...ibre Channel Cabling Instructions v DS4500 Storage Subsystem Installation User s and Maintenance Guide v DS4700 Express Storage Subsystem Installation User s and Maintenance Guide v IBM System Storage...

Страница 26: ...ide v DS4200 Express Storage Subsystem Installation User s and Maintenance Guide v DS4300 Storage Subsystem Installation User s and Maintenance Guide v DS4400 Fibre Channel Storage Server Installation...

Страница 27: ...bsystem health v DS4100 Storage Subsystem Installation User s and Maintenance Guide v DS4200 Express Storage Subsystem Installation User s and Maintenance Guide v DS4300 Storage Subsystem Installation...

Страница 28: ...ake sure that the system is turned on v Use the troubleshooting information in your system documentation and use the diagnostic tools that come with your system v Check for technical information hints...

Страница 29: ...the latest information about IBM System Storage disk storage systems including all of the DS4000 storage subsystems www ibm com servers storage disk ds4000 IBM System Storage products Find information...

Страница 30: ...n select your product and fix type from the subsequent drop down menus Eserver System p and AIX information center Find everything you need to know about using AIX with System p and POWER servers publ...

Страница 31: ...s on fire suppression systems How to send your comments Your feedback is important to help us provide the highest quality information If you have any comments about this document you can submit them i...

Страница 32: ...xxx IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 33: ...s fibre channel or SATA E DDMs The DS4700 Express supports attachment of up to six EXP810 EXP710 or EXP100 storage expansion enclosures resulting in the capability to connect up to 112 disk drives and...

Страница 34: ...and fan units v Model 70A is the same as Model 70H except that you can select to upgrade partitions when placing the order You can also select a supported host kit v Model 70S is the same as Model 70...

Страница 35: ...over Parallel Advanced Technology Attachment ATA while maintaining the benefits of ATA SATA is designed to overcome the performance barriers that have been forecasted for current parallel technologies...

Страница 36: ...ncludes a DS4000 Storage Manager Support CD that has the appropriate IBM DS4000 Storage Manager host software The CD also includes firmware online help and publications in Adobe Acrobat Portable Docum...

Страница 37: ...tifications or the My Support feature including instructions on how to register see the following IBM Support Web page www ibm com systems support storage subscribe moreinfo html You can also check th...

Страница 38: ...he subsystem is powered on in the proper order during this entire power up procedure to ensure the controller will be able to optimally access all of your storage subsystems v The storage subsystem su...

Страница 39: ...rightmost slot slot 16 When a E DDM is installed the drive and tray slot designation is set automatically The hardware addresses are based on the enclosure ID which is set by the controller software a...

Страница 40: ...interface ports and LEDs The controller on model 70 has two fibre channel host ports and the controller on model 72 has four fibre channel host ports that you could use to connect the storage subsyste...

Страница 41: ...x different types of storage expansion enclosures in a redundant drive loop pair such as an EXP100 with an EXP810 For example with four enclosures attached to a DS4500 in a redundant drive loop pair t...

Страница 42: ...1 Controller A 2 Controller B 3 Host channels 4 Ethernet ports 5 Serial port 6 Dual ported drive channel 7 Enclosure ID ds47000 4 3 4 5 6 7 2 3 4 5 6 1 7 Figure 2 Back view connectors switch ports en...

Страница 43: ...propriate for your server v On a DHCP server create a DHCP record for each of the MAC addresses Set the lease duration to the longest time possible v On a BOOTP server edit the bootptab file to add in...

Страница 44: ...ewall configure the firewall to open port 2463 to TCP data AC power supply and fan units The DS4700 Express Storage Subsystem models 70A 70H 72A and 72H has two removable ac power supply and fan units...

Страница 45: ...supply and fan unit A 2 Power supply and fan unit B 3 Power connector 4 Power switch Figure 6 on page 14 shows a power supply and fan unit and the airflow through the storage subsystem ds47004 0 3 2 3...

Страница 46: ...maintains power to the storage subsystem To preserve the optimal airflow do not remove a failed dc power supply and fan unit CRU from the DS4700 Express chassis until you are ready to replace it with...

Страница 47: ...r the DS4700 Express model 72 Table 6 DC power supply and fan unit description for DS4700 Express model 70 Number Description 1 DC power supply and fan unit A 2 DC power connector A11 1 1 ds470070 Fig...

Страница 48: ...you might damage the connectors and short out the power supply 2 The B1 and B2 dc connectors are keyed so that the dc cables are connected to the B1 and B2 connectors in only one way and in opposite o...

Страница 49: ...grees and try again Do not force fit because you might damage the connectors and short out the power supply 2 The B1 and B2 dc connectors are keyed so that the dc cables are connected to the B1 and B2...

Страница 50: ...ttery completes its battery tests The battery unit is hot swappable You can remove the battery unit for servicing and then reinsert it while the DS4700 Express continues to perform I O operations Howe...

Страница 51: ...Conversely a 4 Gbps SFP that is plugged into a 2 Gbps capable port will limit the speed of the port to a maximum of 2 Gbps Carefully check the SFP s IBM part number option number and FRU part number t...

Страница 52: ...mpatibility and upgrades The latest DS4000 controller firmware and NVSRAM the storage expansion enclosure drive enclosure ESM firmware and fibre channel and SATA drive CRUs firmware must be installed...

Страница 53: ...ers storage disk ds4000 interop matrix html Determining firmware levels There are two different methods to determine the DS4000 storage subsystem and firmware versions Each method uses the DS4000 Stor...

Страница 54: ...ne The ESM information displays in the right pane of the Drive Enclosure Component Information window 3 Locate the firmware version of each ESM in the drive enclosure Specifications This section provi...

Страница 55: ...t CRUs and drives but with front cage frame and midplane Table 11 DS4700 Express component weights Unit Weight Drive 0 75 kg 1 65 lb Power supply and fan unit 3 60 kg 7 95 lb Controller including cach...

Страница 56: ...ent air temperature is 22 C 72 F or lower Table 13 Temperature and humidity requirements for storage subsystem when in storage or in transit Condition Parameter Requirement Temperature Storage range 1...

Страница 57: ...itude Table 16 lists the acceptable altitudes for operating storing and shipping the DS4700 Express Table 16 DS4700 Express altitude ranges Environment Altitude Operating 30 5 m 100 ft below sea level...

Страница 58: ...power spectral density Hz 5 17 45 48 62 65 150 200 500 g2 Hz 2 0x10 7 7 2 2x10 5 2 2x10 5 2 2x10 5 2 2x10 5 2 2x10 5 2 2x10 5 2 2x10 5 2 2x10 5 Acoustic noise Table 19 lists the maximum sound levels...

Страница 59: ...quirement Operating Voltage 42 V to 60 V Nominal Voltage 48 V Idle Current 11 8 A Maximum Operating Current 15 8 A Maximum Surge Current 16 A Power and site wiring requirements for models with ac powe...

Страница 60: ...ease as the ambient temperature of the environment in which it is being used increases The ambient temperature in the immediate area of the disk enclosure unit should be kept near 22 C 72 F or lower t...

Страница 61: ...nes of hot and cold aisle Perforated tiles or gratings back back T42 racks T42 racks T42 racks Cold aisle Hot aisle Air conditioner back front front front Airflow Figure 16 Example of cold aisle hot a...

Страница 62: ...30 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 63: ...ping box in order to lighten the storage subsystem See Removing the CRUs on page 40 The following steps summarize the DS4700 Express installation process Each step below is detailed in this chapter or...

Страница 64: ...m it must be populated with at least two E DDMs If at least two E DDMs are not installed in each attached storage expansion enclosure or DS4700 Express Storage Subsystem when you power on the DS4700 E...

Страница 65: ...ow to install the DS4000 Storage Manager host software 16 Use the DS4000 Storage Manager host software to verify the configuration 17 Review and perform the procedures described in Performing the DS40...

Страница 66: ...hese items from the shipping box without first removing the DS4700 Express open the two long sides of the shipping box Then open and fold flat the two short sides of the shipping box This enables you...

Страница 67: ...ds that are shipped with the DS4700 Express v SFP modules v Rack mounting hardware that ships with the DS4700 Express Preparing the site This section lists the floor space requirements and weight info...

Страница 68: ...cables 5 Install any additional interface cables and power cables After you have completed these steps continue with Installing the support rails Installing the support rails Attention Duplicate copi...

Страница 69: ...t Left Bezel Front Right Rail assembly Front Right FRONT Rack Mounting Template DS4700 Install first Install second Install second Install first Install first Install first ds470001 Figure 18 Front ra...

Страница 70: ...Ensure that the rack cabinet has already been installed 2 Ensure that a stabilizer has been correctly attached to the bottom front of the rack to prevent the rack from tipping forward while the DS470...

Страница 71: ...d as left or right However each rail can be correctly mounted on only one side of the rack cabinet The rails should be mounted with the alignment pins at the back of the rack Figure 20 on page 40 show...

Страница 72: ...rails on page 46 and then skip the CRU replacement instructions provided in Replacing the components on page 48 Attention IBM strongly recommends that you remove CRUs from the DS4700 Express chassis t...

Страница 73: ...18 kg 39 7 lb 32 kg 70 5 lb 55 kg 121 2 lb CAUTION Use safe practices when lifting Attention The storage subsystem comes with a bezel that is attached to the front of the unit The bezel protects the...

Страница 74: ...the power supply and fan unit Complete the following steps to remove a power supply and fan unit 1 Squeeze the latch and pull the lever open 90 so that the lever is horizontal to release the power su...

Страница 75: ...power supply and fan unit Removing a dc power supply and fan unit CAUTION This unit has more than one power source To remove all power from the unit all dc MAINS must be disconnected Statement 29 Leve...

Страница 76: ...onductor Statement 30 CAUTION To reduce the risk of electric shock or energy hazards v This equipment must be installed by trained service personnel in a restricted access location as defined by the N...

Страница 77: ...e tray Do not attempt to detach the E DDM from the tray 1 Use Table 55 on page 194 to record the location and identify your E DDMs You must record this information to be able to replace the E DDMs in...

Страница 78: ...not install modules or other equipment in the top half of a rackmount cabinet while the bottom half is empty Doing so can cause the cabinet to become top heavy and tip over Always install hardware in...

Страница 79: ...le to help you lift the DS4700 Express into the rack a Move the storage subsystem to the front of the rackmount cabinet b With help from another person place the back of the storage subsystem on the s...

Страница 80: ...t Replacing a controller Complete the following steps to replace the controller that you removed before the installation Attention After you remove an controller wait 70 seconds before reseating or re...

Страница 81: ...rrectly Attention Make sure that the levers lock into place in the storage subsystem chassis 3 Repeat step 1 on page 48 and step 2 to replace the second controller Replacing an ac power supply and fan...

Страница 82: ...chassis in opposite orientations If you cannot fully insert the power supply and fan unit into the power supply and fan unit bay flip it 180 and reinsert it 2 As you slide the power supply and fan uni...

Страница 83: ...itching or disconnecting devices shall not be in the earthed circuit conductor between the dc source and the point of connection of the earthing electrode conductor Statement 30 CAUTION To reduce the...

Страница 84: ...reinsert it 2 As you slide the dc power supply and fan unit into the empty slot make sure the guide pins on the side of the dc power supply fit into the notches along the sides of the dc power supply...

Страница 85: ...ks into place 3 Repeat step 1 and step 2 to replace additional E DDMs Installing a Telco bezel Complete the following step to install a bezel on a DS4700 Express Storage Subsystem if the storage subsy...

Страница 86: ...ds470067 Figure 31 Installing a Telco bezel 54 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 87: ...ure ID comprised of two seven segment numbers is located on the back of each controller next to the indicator lights It provides a unique identifier for each enclosure in the DS4000 storage subsystem...

Страница 88: ...to four single ported host channel connections depending on the model and two dual ported drive channel connections You use a small form factor pluggable transceiver SFP to connect each host channel...

Страница 89: ...the cables to a diameter of less than 76 mm 3 in or a radius less than 38 mm 1 5 in v When storing excess or unused fibre optic cables do not bend the cables to a diameter of less than 76 mm 3 in or a...

Страница 90: ...00 Express or any of the attached DS4000 storage expansion enclosures v The SFP module housing has an integral guide key that is designed to prevent you from inserting the SFP module improperly v Use...

Страница 91: ...itters are installed note the following v Do not remove the covers Removing the covers of the laser product could result in exposure to hazardous laser radiation There are no serviceable parts inside...

Страница 92: ...re that you unplug the LC LC fibre channel cable before you remove the SFP module 1 Remove the LC LC fibre channel cable from the SFP module For more information see Removing an LC LC fibre channel ca...

Страница 93: ...el cables The LC LC fibre channel cable is a fiber optic cable that you use to connect DS4700 Express fibre channel ports into one of the following devices v An SFP module installed in a fibre channel...

Страница 94: ...ult in hazardous radiation exposure DANGER Some laser products contain an embedded Class 3A or Class 3B laser diode Note the following Laser radiation when open Do not stare into the beam do not view...

Страница 95: ...Save the protective caps for future use 6 Connect this end of the LC LC cable to one of the following devices v An SFP module that is installed in a separate EXP810 or EXP710 storage expansion enclos...

Страница 96: ...ches 2 While pressing down the cable lever carefully pull on the connector to remove the cable from the SFP module as shown in Figure 42 3 Replace the protective caps on the cable ends 4 Replace the p...

Страница 97: ...emove the covers Removing the covers of the laser product could result in exposure to hazardous laser radiation There are no serviceable parts inside the device v Use of controls or adjustments or per...

Страница 98: ...ps fibre channel switch or fibre channel host bus adapter connect the SC connector end of the LC SC cable adapter to a Gigabit Interface Converter GBIC that is installed in the 1 Gbps fibre channel sw...

Страница 99: ...nector end of the LC SC cable adapter press down and hold the lever to release the latches Figure 46 shows the location of the lever and latches Lever Latches f10ug018 2 Carefully pull on the connecto...

Страница 100: ...pansion enclosures that you want to install currently contain logical drives or configured hot spares and you want them to be part of the DS4700 Express Storage Subsystem configuration refer to the IB...

Страница 101: ...ot case procedures in which the DS4700 Express is powered on when storage expansion enclosures are connected refer to the IBM System Storage DS4000 Hard Drive and Storage Expansion Enclosure Installat...

Страница 102: ...connect power to the storage expansion enclosures first and then connect power to the DS4700 Express After you have powered on the configuration use the DS4000 Storage Manager client to check the stat...

Страница 103: ...nnel 1 Port 2 on Controller A Drive Channel 2 Port 2 on Controller B 4 Drive Channel 1 Port 1 on Controller A Drive Channel 2 Port 1 on Controller B 5 Host Port 2 6 Host Port 1 Table 24 provides a lis...

Страница 104: ...ed storage expansion enclosure drive cabling schemes on page 77 for specific cabling instructions One DS4700 Express and two storage expansion enclosures If you are cabling one DS4700 Express Storage...

Страница 105: ...eft ESM Left ESM Right ESM Right ESM Controller A Controller B 1 2 2 1 ds470044 Figure 52 One DS4700 Express and two storage expansion enclosure Not recommended cabling Left ESM Left ESM Right ESM Rig...

Страница 106: ...losures If you are cabling one DS4700 Express Storage Subsystem and up to six storage expansion enclosures Figure 56 on page 75 shows the recommended cabling topology Left ESM Left ESM Right ESM Right...

Страница 107: ...of the dual ported drive channel in each controller Left ESM Left ESM Right ESM Right ESM Controller A Controller B 1 2 2 1 ds470051 Left ESM Right ESM Left ESM Right ESM Left ESM Right ESM Left ESM R...

Страница 108: ...noted in the graphic as 1 while the EXP810s are denoted as 2 Note If you are mixing EXP100s with EXP710s and EXP810s Figure 58 on page 77 is not the recommended cabling topology Additional cabling rul...

Страница 109: ...e expansion enclosures on page 85 v One DS4700 Express and three or more EXP710 storage expansion enclosures on page 86 v One DS4700 Express and one EXP810 storage expansion enclosure on page 89 v One...

Страница 110: ...limitation might result in loss of data availability In the DS4700 Express Storage Subsystem environment no more than six EXP810 and or EXP710 or EXP100 storage expansion enclosures can be connected...

Страница 111: ...losure s EXP710 or EXP100 left ESM IN port of the last enclosure in the group of enclosures that are cabled in a redundant drive loop pair In addition the DS4700 Express drive port must always be conn...

Страница 112: ...DDMs within the same drive enclosure One DS4700 Express and one EXP100 storage expansion enclosure Figure 61 on page 81 shows the recommended cabling scheme for one DS4700 Express Storage Subsystem a...

Страница 113: ...s behind both ports of a dual ported drive channel Perform the following steps to create the recommended cabling scheme shown in Figure 62 1 Connect port 2 of drive channel 1 on the DS4700 Express to...

Страница 114: ...t 1 on the left ESM in the third EXP100 5 2 Connect the IN port 1 on the right ESM in the third EXP100 5 to the OUT port 2 on the right ESM in the first EXP100 3 3 Connect the IN port 1 on the left ES...

Страница 115: ...the second EXP100 4 to the IN port 1 on the left ESM in the fourth EXP100 6 6 Connect the IN port 1 on the right ESM in the fourth EXP100 6 to the OUT port 2 on the right ESM in the second EXP100 4 7...

Страница 116: ...0 7 7 Connect the OUT port 2 on the left ESM in the second EXP100 4 to the IN port 1 on the left ESM in the fourth EXP100 6 8 Connect the IN port 1 on the right ESM in the fourth EXP100 6 to the OUT p...

Страница 117: ...ESM of the EXP710 One DS4700 Express and two EXP710 storage expansion enclosures Figure 67 shows the recommended cabling scheme for one DS4700 Express Storage Subsystem and two EXP710 storage expansio...

Страница 118: ...cheme shown in Figure 68 1 Connect the OUT port 2 on the left ESM in the first EXP710 3 to the IN port 1 on the left ESM in the third EXP710 5 2 Connect the IN port 1 on the right ESM in the third EXP...

Страница 119: ...710 4 to the IN port 1 on the left ESM in the fourth EXP710 6 6 Connect the IN port 1 on the right ESM in the fourth EXP710 6 to the OUT port 2 on the right ESM in the second EXP710 4 7 Connect the IN...

Страница 120: ...0 7 7 Connect the OUT port 2 on the left ESM in the second EXP710 4 to the IN port 1 on the left ESM in the fourth EXP710 6 8 Connect the IN port 1 on the right ESM in the fourth EXP710 6 to the OUT p...

Страница 121: ...ESM of the EXP810 2 Connect either port 1 or port 2 of the dual ported drive channel 2 in controller B on the DS4700 Express to port 1B 1 on the right ESM of the EXP810 One DS4700 Express and two EXP8...

Страница 122: ...three or more EXP810 storage expansion enclosures To connect three or more storage expansion enclosures to a DS4700 Express Storage Subsystem alternately connect a storage expansion enclosure to one...

Страница 123: ...700 Express to port 1B 1 on the right ESM in the third EXP810 4 5 Connect port 1B 1 on the left ESM in the second EXP810 3 to port 1 of drive channel 1 on the DS4700 Express 6 Connect port 1B 1 on the...

Страница 124: ...ESM in the fourth EXP810 5 6 Connect port 1A on the right ESM in the fourth EXP810 5 to port 1B 1 on the right ESM in the second EXP810 3 7 Connect port 1B 1 on the left ESM in the second EXP810 3 to...

Страница 125: ...f drive channel 2 on the DS4700 Express to port 1B 1 on the right ESM in the fifth EXP810 6 7 Connect port 1A on the left ESM in the second EXP810 3 to port 1B 1 on the left ESM in the fourth EXP810 5...

Страница 126: ...m the controller drive port to the IN port on the left ESM ESM A of the EXP100 v If an EXP100 follows the initial EXP100 cable from the IN port on the left ESM ESM A of the first EXP100 to the OUT por...

Страница 127: ...system controller is cabled to the IN port on the left ESM of the first EXP100 ESM B ESM A ESM B ESM A ESM B ESM A ESM B ESM A ESM B ESM A ESM B ESM A Out ESM B ESM A ESM B ESM A 1 1 2 2 2 3 3 4 5 4 5...

Страница 128: ...0 storage expansion enclosures behind a DS4700 Express Storage ESM B ESM A ESM B ESM A ESM B ESM A ESM B ESM A 1 2 2 3 4 5 4 5 4 4 5 5 6 7 6 7 6 7 7 6 exp100810u EXP100 EXP100 EXP810 EXP810 DS4000 Sto...

Страница 129: ...sical location bay of the E DDM DS4000 storage expansion enclosure ID settings Some DS4000 storage expansion enclosures such as the EXP710 and EXP100 have an enclosure ID switch that is used to identi...

Страница 130: ...with six EXP710 or EXP100 storage expansion enclosures connected in a redundant drive channel loop pair the recommended enclosure ID settings for the enclosures are shown in Table 30 EXP810 storage ex...

Страница 131: ...sion enclosures you can combine for use in a single redundant drive channel loop pair in a DS4700 Express configuration Table 31 shows the supported storage expansion enclosures combinations per redun...

Страница 132: ...public subnet Use a local private network for the DS4700 Express and the management station Ethernet ports 3 To ensure proper EMI shielding always use quality braided and shielded serial cables Conne...

Страница 133: ...tion Storage subsystem management methods Before you configure the storage subsystem determine which method of storage subsystem management you want to use You can manage the storage subsystems in eit...

Страница 134: ...t method Table 34 Description of Figure 61 Number Description 1 Two storage subsystems 2 Fibre channel I O path 3 Host server 4 Ethernet network 5 Management station Direct out of band management meth...

Страница 135: ...or the appropriate operating system for more information on setting the management connections and installing the DS4000 storage subsystem management software For a listing of default IP addresses see...

Страница 136: ...B Using the fibre channel switches up to 512 hosts can be redundantly attached to the DS4700 Express Storage Subsystem in a fibre channel SAN fabric To connect a host adapter to the DS4700 Express RA...

Страница 137: ...e the host system cables connect Table 36 DS4700 Express Storage Subsystem Model 70 location of host ports on controllers Number Description 1 Controller A 2 Controller B 3 Host Ports Table 37 DS4700...

Страница 138: ...nnection to a fibre channel host bus adapter in the DS4700 Express Storage Subsystem You can also connect to fibre channel switch ports not shown Host 1 Host Adapter 1 and 2 Host 2 Host Adapter 1 and...

Страница 139: ...700 Express supports redundant drive channel loop configurations You can build a redundant drive channel loop by connecting one or more storage expansion enclosures to the redundant RAID controllers T...

Страница 140: ...e 109 v Two storage subsystems in a dual SAN fabric configuration as shown in Figure 90 on page 110 v Two clusters as shown in Figure 91 on page 110 Notes 1 These configurations have host and drive pa...

Страница 141: ...N fabric Host system with two host adapters Host system with two host adapters Switch Switch Interswitch link ds470028 DS4700 Figure 88 Example of a single SAN fabric configuration Host system with tw...

Страница 142: ...s go to the following Web site www ibm com systems support storage disk Host system with two host adapters Host system with two host adapters Switch Switch DS4700 DS4700 ds470030 Figure 90 Example of...

Страница 143: ...nductor of the dc supply circuit to the earthing conductor at the equipment This equipment is designed to permit the connection of the earthed conductor of the dc supply circuit to the earthing conduc...

Страница 144: ...upply and fan units even though the power supply switch is in the OFF position Use a disconnect device to shut power off before unplugging the dc power jumper cable from the dc power supply connectors...

Страница 145: ...ction connect dc power connectors A2 and B2 to a different set of dc power sources than dc power connectors A1 and B1 are connected to This cabling scheme protects against certain combinations of dual...

Страница 146: ...iptions Number Description 1 Pin 1 48 V dc 2 Pin 2 POS RTN 3 Pin 3 GND 3 Connect the 48V line of the dc power cable to an approved and rated disconnect device The disconnect device must be easily acce...

Страница 147: ...protection against power loss connect each of the two dc power supplies to a different power source Table 39 DC power source wiring descriptions Number Description 1 Pin 1 48 V dc 2 Pin 2 POS RTN 3 P...

Страница 148: ...116 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 149: ...be gathered periodically for regular Health Check monitoring regardless of the state of the Recovery Guru You can collect all these logs at once and zip them into a single file by clicking Advanced Tr...

Страница 150: ...ad device drivers and updates For DS4000 information go to the following Web site www ibm com systems support storage disk For the latest information about operating system and HBA support clustering...

Страница 151: ...system Powering on the storage subsystem This section contains instructions for turning the storage subsystem on under normal and emergency situations When you turn on and turn off the DS4700 Express...

Страница 152: ...enclosure to power up Check the LEDs on the front and back of all the storage expansion enclosures Verify that no Needs Attention or enclosure ID LEDs light on any of the storage expansion enclosures...

Страница 153: ...indow b Complete the recovery procedure If the Recovery Guru directs you to replace a failed component use the individual LEDs on the storage subsystem to locate the specific failed component For trou...

Страница 154: ...the readme that is included with the DS4700 Express Storage Subsystem firmware package whether the firmware is accessed by the Web or CD for any special requirements or restrictions that apply to that...

Страница 155: ...4000 Storage Manager client can identify the risk level and provide the necessary recovery procedures Note For PFA flags the General system error LED and Drive Needs Attention LEDs do not turn on so c...

Страница 156: ...d the readme file that is included in each firmware or DS4000 Storage Manager software package for any limitations subsystem firmware prerequisites or download sequence information For example the con...

Страница 157: ...ou are finished with this procedure If you are still experiencing a problem with this storage subsystem create save and print a storage subsystem profile This information might be helpful when trouble...

Страница 158: ...an unit Power On Off 2 Service Action Allowed OK to Remove Off On 3 Service Action Required Fault Off On 4 Direct Current Enabled On Off DC power supply and fan unit LEDs This section describes the pr...

Страница 159: ...Current Enabled LED indicates that the dc output from the dc power supply and fan unit to the internal circuitry is good 2 Verify that any attached disconnect device is set to On and the power switch...

Страница 160: ...n On not blinking 3 Global Locate On N A 4 Global Summary Fault Off On 5 Global Power On Off 6 Link Rate Switch Set to the 2 Gbps or 4 Gbps position depending on your configuration N A Battery unit LE...

Страница 161: ...he storage subsystem configuration including all attached storage expansion enclosures The Global Power Global Summary Fault and Global Locate LEDs shine through the front bezel Attention If the Globa...

Страница 162: ...2 3 4 5 6 7 8 9 8 1 6 7 9 10 1 1 12 13 2 3 4 5 6 7 8 9 8 1 6 7 9 10 1 1 12 13 Figure 100 Rear controller LEDs controls and connectors Model 70 ds470062 2 3 4 5 6 8 9 8 1 7 9 10 1 1 12 13 2 3 4 5 6 8...

Страница 163: ...s of two FC ports This LED indicates the drive port bypass status of one of the two FC ports that comprise a drive channel The LED marked 13 shows the status of the other port Off Also off if no SFP c...

Страница 164: ...g at 2 Gbps On On The host or drive channel is operating at 4 Gbps Seven segment numeric display LEDs The numeric display consists of two seven segment LEDs that provide information about enclosure id...

Страница 165: ...isplay diagnostic codes Value Controller State Description Storage Manager View L0 Suspend Mismatched controller board ID Needs Attention condition for board ID mismatch L2 Suspend Persistent memory e...

Страница 166: ...ss will power up correctly later The DS4700 Express is designed to run continuously After you turn on the DS4700 Express do not turn it off Turn off the power only in the following situations v Instru...

Страница 167: ...dure to turn off power to one or more storage subsystems for a planned shutdown To turn off power for an unplanned shutdown see Restoring power after an unexpected shutdown on page 137 Before proceedi...

Страница 168: ...wer switch on each controller is turned off 9 Turn off both power switches on the back of each storage expansion enclosure in the configuration CAUTION The power switch on the power supply and fan uni...

Страница 169: ...ables or equipment attached to the storage subsystem v Yes Do not continue with this procedure Contact your IBM service representative for assistance Depending on the current service agreements you mi...

Страница 170: ...the fans in the power supply and fan units maintain a proper operating temperature inside the module If the internal temperature reaches 65 C 149 F the power supply shuts down automatically If both po...

Страница 171: ...e power supplies have shut down because of an overheating problem and then go to step 4 4 Stop I O activity to the storage subsystem and all attached storage expansion enclosures 5 Take all or some of...

Страница 172: ...Physical View of the Subsystem Management window to view the status of its components The status for each component is either Optimal or Needs Attention 11 Does each module display green LEDs only an...

Страница 173: ...the cache rather than to the drives The RAID controller has a Cache Active LED that displays the current status of the cache The LED is on if there is data in the cache and it is off if there is no d...

Страница 174: ...d as failed by the LEDs or in the DS4000 Storage Manager Subsystem Management window You do not need to replace both battery units when the Battery LEDs indicate that only one battery unit has failed...

Страница 175: ...104 shows the location of the Battery LEDs Table 48 Battery unit LEDs Number LED Normal Status Problem Status 1 Service Action Allowed OK to Remove Off On 2 Service Action Required Fault Off On 3 Bat...

Страница 176: ...144 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 177: ...rcuitry v Do not leave the device where others can handle and possibly damage the device v While the device is still in its static protective package touch it to an unpainted metal part of the storage...

Страница 178: ...ut state by the other controller in the DS4700 Express chassis Note The DS4700 Express Storage Subsystem controller FRU is not compatible with the DS4200 Express Storage Subsystem controller FRU v Bot...

Страница 179: ...labels and instructions are included with the replacement controller Make sure that the labels are aligned properly and do not cover any ports or LEDs Attention Handle and install fiber optic cables p...

Страница 180: ...hether the controller you are removing is the right or left controller CRU 9 Slowly pull the lever away from the chassis to remove the controller from the bay Use two hands when releasing the controll...

Страница 181: ...ep a and step b to replace the second controller 12 Wait up to 5 minutes for the DS4000 Storage Manager client software to recognize the new controller 13 Complete any remaining Recovery Guru procedur...

Страница 182: ...status v Yes Select the Recovery Guru toolbar button in the Subsystem Management window and complete the recovery procedure If the problem persists contact your IBM service representative v No Go to s...

Страница 183: ...e E DDMs or by replacing existing E DDMs with ones that have a larger capacity Before you begin complete the following tasks v Read the safety and handling guidelines in Safety on page xv and in Handl...

Страница 184: ...tem when you power on the DS4700 Express and its attached storage expansion enclosures your standard storage partition key might be lost and must be regenerated using instructions on the IBM DS4000 So...

Страница 185: ...When you install a E DDM in the storage subsystem the drive tray connects into a printed circuit board called the midplane The midplane sets the fibre channel loop ID automatically based on the setti...

Страница 186: ...e The hard disk drive comes installed in a drive tray Do not attempt to detach the drive from the tray a Release the latch on the drive CRU by pressing on the inside of the bottom of the tray handle b...

Страница 187: ...ocation of the E DDM that you want to remove Attention Never hot swap a E DDM CRU when its associated green Activity LED is flashing Hot swap a E DDM CRU only when its associated amber Fault LED is li...

Страница 188: ...ge 157 This is the safest way to exchange E DDMs without losing data However this method might take a long time to complete because of the backup reconfiguration and restoration processes In addition...

Страница 189: ...to replace all E DDMs at the same time You must use this method if you are upgrading E DDMs containing RAID 0 logical drives All the data currently on the E DDMs is lost when you replace the E DDMs th...

Страница 190: ...tem documentation for information about disconnecting the storage subsystem logical drives from the host before the storage subsystem is powered off b Turn off power to the storage subsystem before yo...

Страница 191: ...ata from backup to all the E DDMs Replacing the E DDMs one at a time Use this procedure to replace all the E DDMs one at a time You cannot use this procedure on RAID 0 logical drives use the procedure...

Страница 192: ...reinstall it Because you failed two E DDMs in a RAID array the array might be marked failed by the controller This array will not be available to the host for I O See the DS4000 Storage Manager softw...

Страница 193: ...witch enables you to select the data transfer rate between the controllers and the drives to either 2 Gbps or 4 Gbps The Link Rate switch is only read when the storage subsystem is powered up Note Do...

Страница 194: ...stem with Mixed Drives 2 Gbps Drives function in 2 Gbps mode Drives work in 2 Gbps mode All drives work in 2 Gbps mode 4 Gbps Drives do not come online Drives work in 4 Gbps mode 2 GB drives do not co...

Страница 195: ...avoid damage from static electricity For details about handling static sensitive devices see Handling static sensitive devices on page 33 4 Locate the Link Rate switch Figure 112 shows the location o...

Страница 196: ...the Recovery Guru select the Recovery Guru toolbar button in the Subsystem Management window b Complete the recovery procedure c When the procedure is completed rerun the Recovery Guru to ensure that...

Страница 197: ...er an unexpected shutdown on page 137 Attention The fans in the power supply and fan units draw in fresh air and force out hot air The power supply and fan units are hot swappable and redundant howeve...

Страница 198: ...fan unit CRU Note The new power supply and fan unit CRU comes with an instruction sheet and label sheet The instruction sheet provides instructions on placing the appropriate labels on the power suppl...

Страница 199: ...rst remove power cords from outlet 3 Remove signal cables from connectors 4 Remove all cables from devices 9 Turn off the power switch and unplug the power cord from the failed power supply and fan un...

Страница 200: ...connected to The power cord may be faulty Go to step 16 v Fault and ac power LED are on but the dc power LED is off The power supply and fan unit is faulty Turn the power supply and fan unit power swi...

Страница 201: ...e equipment If this connection is made all of the following conditions must be met v This equipment shall be connected directly to the dc supply system earthing electrode conductor or to a bonding jum...

Страница 202: ...S4700 Express The dc power supplies are customer replaceable units CRUs and do not require preventive maintenance Use only the supported dc power supplies for your specific storage subsystem Each dc p...

Страница 203: ...replace a failed dc power supply and fan unit CRU within 15 minutes of removal If replacing it will take longer than 15 minutes stop all I O activity to the storage subsystem and turn off the power u...

Страница 204: ...reconfiguration of this product during an electrical storm v Connect all power cords to a properly wired and grounded electrical outlet v Connect to properly wired outlets any equipment that will be a...

Страница 205: ...dc power supply and fan unit bay 12 Slide the new unit into the empty slot As you slide the dc power supply and fan unit into the empty slot make sure the guide pins on the side of the dc power suppl...

Страница 206: ...tep 17 16 Perform the following task or task s to resolve the problem v Ensure the disconnect device is set to the ON position v Ensure that the power switch is turned to the ON position v Ensure that...

Страница 207: ...ems the DS4700 Express Storage Subsystem battery units do not have set expiration dates Do not replace these batteries after a certain usage period Attention When you handle static sensitive devices t...

Страница 208: ...on and Lithium Ion battery packs For information on proper disposal of these batteries please contact IBM at 1 800 426 4333 Please have the IBM part number listed on the battery available prior to you...

Страница 209: ...talling an SFP module Electrostatic discharge can damage sensitive components To prevent electrostatic discharge damage to the storage subsystem use proper antistatic protection when handling componen...

Страница 210: ...d 14 Use the DS4000 Storage Manager Subsystem Management window to check the status the status of all components in the storage subsystem 15 Remove the antistatic protection 16 Does any component have...

Страница 211: ...ab on the lever Note The lever rotates upward or downward 90 depending on whether the controller you are removing is the right or left controller CRU b Slowly pull the lever away from the storage subs...

Страница 212: ...is that hold the DS4700 Express to the rails Attention The unit must be removed from the rack and placed on a level ESD protected surface before servicing it 13 Pull the chassis outward from the front...

Страница 213: ...and slowly sliding it into the storage subsystem chassis Make sure that the front cage frame EMC gaskets do not snag between the frame and chassis 17 Tighten the four front cage frame screws See Figu...

Страница 214: ...Manager client program 28 After removing the faulty cage frame with midplane assembly transpose the DS4700 Express serial number machine type and model tag from the faulty cage frame assembly to the...

Страница 215: ...stic aids Solving problems This section contains information to help you solve some of the problems you might have with your storage subsystem Table 51 on page 184 contains the problem symptoms and er...

Страница 216: ...r being placed online replace the RAID controller Unsupported controller type For example a DS4200 Express FRU is inserted into a DS4700 Express chassis Use the Storage Manager Client Subsystem Manage...

Страница 217: ...eplace the failed SFP module See the DS4000 Storage Manager software documentation for more information Battery unit fault Battery unit failure Verify the failure using DS4000 Storage Manager Client a...

Страница 218: ...ystem event logs to isolate the faulty component Controller drive port bypass LED The enclosure speed was set to 4 Gbps but the SFP inserted in the controller drive SFP port does not operate at 4 Gbps...

Страница 219: ...or all CRUs Defective ac power source or improperly connected power cable Check the ac power source Reseat all installed power cables and power supplies If applicable check the power components power...

Страница 220: ...ve CRU has interface problem with the ESM or controller Replace the drive CRU Incorrect firmware version Verify that the DS4700 Express Storage Subsystem has the correct firmware version Refer to Soft...

Страница 221: ...NEBs Level 3 Telco compliant 41Y5155 AC power supply and fan unit FRU 600 W Models that are NEBs Level 3 Telco compliant 1 42D3346 DC power supply and fan unit FRU 42D3290 3 Controller model 70 Contr...

Страница 222: ...0371 42D0372 42D0373 40K6815 40K6819 40K6823 39M4557 43W9715 6 Battery backup unit 41Y0679 7 Telco filter bezel assembly 42D3308 Blank drive module 42D3315 Cable FRU 1M 39M5699 Cable FRU 5M 39M5700 Ca...

Страница 223: ...contact your IBM technical support representative Identification numbers Record and retain the following information Product name IBM System Storage DS4000 DS4700 Express Storage Subsystem Machine typ...

Страница 224: ...r Domain Name System DNS table The information is also helpful if you add storage subsystems after initial installation Refer to your Storage Manager documentation for detailed instructions about how...

Страница 225: ...tion record Storage subsystem name Management method Controllers Ethernet and IP addresses and host name Host IP address and host name Controller A Controller B Finance Direct Hardware Ethernet addres...

Страница 226: ...sponding bay number Attention If you replace a hard disk drive in the wrong drive bay it might cause a loss of data Table 55 Hard disk drive record Bay number Hard disk drive serial number Replaced ha...

Страница 227: ...Figure 122 on page 197 to identify the proper locations for inserting M5 screws when mounting the support rails and DS4700 Express to a rack The locations for the M5 screws are highlighted in the temp...

Страница 228: ...ail assembly Front Right FRONT Rack Mounting Template DS4700 Install first Install second Install second Install first Install first Install first ds470001 Figure 121 Front rack mounting template 196...

Страница 229: ...0U 0U Rail assembly Rear Left Rail assembly Rear right Printed in the U S A REAR Rack Mounting Template DS4700 Rail mounting guide ds470002 Figure 122 Rear rack mounting template Appendix B Rack moun...

Страница 230: ...198 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 231: ...three conductor cord a maximum of 15 feet in length and a tandem blade grounding type attachment plug rated 15 amperes 250 volts For units intended to be operated at 230 volts outside the U S Use a co...

Страница 232: ...upe Guinea Guinea Bissau Hungary Iceland Indonesia Iran Kazakhstan Kyrgyzstan Laos Peoples Democratic Republic of Latvia Lebanon Lithuania Luxembourg Macedonia former Yugoslav Republic of Madagascar M...

Страница 233: ...8m Israel 39Y7919 9828 Power Cord 250v 10A 2 8m Liechtenstein Switzerland 39Y7922 9829 Power Cord 250v 10A 2 8m Bangladesh Lesotho Maceo Maldives Namibia Nepal Pakistan Samoa South Africa Sri Lanka S...

Страница 234: ...202 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 235: ...es each document in the DS4000 Version 10 Storage Manager library with its related common user tasks Table 57 DS4000 Storage Manager Version 10 titles by user tasks Title User tasks Planning Hardware...

Страница 236: ...Storage Subsystem library with its related common user tasks Table 58 DS4800 Storage Subsystem document titles by user tasks Title User Tasks Planning Hardware Installation Software Installation Confi...

Страница 237: ...Tasks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance IBM System Storage DS4700 Storage Subsystem Installation User s and Main...

Страница 238: ...sks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance IBM TotalStorage DS4500 Storage Subsystem Installation User s and Maintena...

Страница 239: ...asks Title User Tasks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance IBM TotalStorage DS4400 Fibre Channel Storage Server Use...

Страница 240: ...and Administration Diagnosis and Maintenance IBM TotalStorage DS4300 Storage Subsystem Installation User s and Maintenance Guide U U U U U IBM TotalStorage DS4300 Rack Mounting Instructions U U IBM T...

Страница 241: ...le User Tasks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance IBM System Storage DS4200 Express Storage Subsystem Installation...

Страница 242: ...titles by user tasks Title User Tasks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance IBM TotalStorage DS4100 Storage Server...

Страница 243: ...and Maintenance Guide U U U U U IBM System Storage Quick start guide Quick reference for the DS4700 and DS4200 Sections 2 3 and 4 also for installing the EXP810 and EXP420 U U U IBM TotalStorage DS400...

Страница 244: ...IBM TotalStorage DS4000 FC2 133 Host Bus Adapter Installation and User s Guide U U IBM TotalStorage DS4000 FC2 133 Dual Port Host Bus Adapter Installation and User s Guide U U IBM Netfinity Fibre Cha...

Страница 245: ...o the other required host software components Table 67 defines the keyboard operations that enable you to navigate select or activate user interface components The following terms are used in the tabl...

Страница 246: ...to select press Ctrl Spacebar to select the drive If you press Spacebar alone when multiple drives are selected then all selections are removed Use the Ctrl Spacebar combination to deselect a drive w...

Страница 247: ...mplied warranties in certain transactions therefore this statement may not apply to you This information could include technical inaccuracies or typographical errors Changes are periodically made to t...

Страница 248: ...eed is the variable read rate Actual speeds vary and are often less than the possible maximum When referring to processor storage real and virtual storage or channel volume KB stands for 1024 bytes MB...

Страница 249: ...such environmental contamination Implementation of such remedial measures is a customer responsibility Table 68 Limits for particulates and gases Contaminant Limits Particulate v The room air must be...

Страница 250: ...is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment Unauthorized cha...

Страница 251: ...bility Directive Deutschsprachiger EU Hinweis Hinweis f r Ger te der Klasse A EU Richtlinie zur Elektromagnetischen Vertr glichkeit Dieses Produkt entspricht den Schutzanforderungen der EU Richtlinie...

Страница 252: ...instimmung mit dem Deutschen EMVG das EG Konformit tszeichen CE zu f hren Verantwortlich f r die Konformit tserkl rung des EMVG ist die IBM Deutschland GmbH 70548 Stuttgart Generelle Informationen Das...

Страница 253: ...standard for IBM compatibles It extends the XT bus architecture to 16 bits and also allows for bus mastering although only the first 16 MB of main memory are available for direct access agent A server...

Страница 254: ...replaceable unit customer replaceable unit CRU An assembly or part that a customer can replace in its entirety when any of its components fail Contrast with field replaceable unit FRU cyclic redundanc...

Страница 255: ...expansion port error correction coding ECC A method for encoding data so that transmission errors can be detected and corrected by examining the data on the receiving end Most ECCs are characterized b...

Страница 256: ...etaphor of a real world scene often of a desktop by combining high resolution graphics pointing devices menu bars and other menus overlapping windows icons and the object action relationship GUI See g...

Страница 257: ...local area network LBA See logical block address local area network LAN A computer network located on a user s premises within a limited geographic area logical block address LBA The address of a log...

Страница 258: ...ork Management Protocol SNMP a station that runs management application programs that monitor and control network elements NMI See non maskable interrupt NMS See network management station non maskabl...

Страница 259: ...sk RVSD A virtual shared disk on a server node configured to provide continuous access to data and file systems in a cluster redundant array of independent disks RAID A collection of disk drives array...

Страница 260: ...to convert signals between optical fiber cables and switches An SFP is smaller than a gigabit interface converter GBIC See also gigabit interface converter SNMP See Simple Network Management Protocol...

Страница 261: ...t particular TL_port Transmission Control Protocol TCP A communication protocol used in the Internet and in any network that follows the Internet Engineering Task Force IETF standards for internetwork...

Страница 262: ...230 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance Guide...

Страница 263: ...on enclosures 90 one DS4700 and two EXP100 storage expansion enclosures 81 one DS4700 and two EXP710 storage expansion enclosures 85 one DS4700 and two EXP810 storage expansion enclosures 89 cabling t...

Страница 264: ...4 Web sites xxvii documentation format 217 documentation inventory 4 drive 2 Gbps 7 amber Fault LED 8 green Activity LED 8 trays 7 drive CRU labels 152 drive CRUs 151 drive information 123 drive LED a...

Страница 265: ...replacing 52 hot swap hard disk drives 151 installing 153 hot swap hard disk drives continued replacing 52 how to send your comments xxix hub See managed hub 105 I IBM address xxix IBM Safety Informat...

Страница 266: ...shutdown 138 power restoring after an emergency 137 powering off for planned shutdown 134 powering on after planned shutdown 119 after power supply shutdown 138 at initial startup 119 problem determi...

Страница 267: ...ubsystem airflow 12 checking status 125 configuring 101 connecting storage expansion enclosures to 69 drive ID numbers 8 fans 12 fault indicator LEDs 125 identification numbers 191 storage subsystem c...

Страница 268: ...ites continued premium feature activation xxviii readme files xxvii SAN support xxvii switch support xxvii 236 IBM System Storage DS4700 Express Storage Subsystem Installation User s and Maintenance G...

Страница 269: ......

Страница 270: ...Part Number 94Y8472 Printed in USA GC26 7843 05 1P P N 94Y8472...

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