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Sun Microsystems Sun StorEdge T3, Инструкция по установке, эксплуатации и обслуживанию

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xxii

Sun StorEdge T3 Disk Tray Installation, Operation, and Service Manual • July 2000

Chapter 3 describes options for operating your disk tray, such as reconfiguring the
default settings and monitoring disk tray activity.

Chapter 4 provides information on how to approach troubleshooting the disk tray
and references troubleshooting tools.

Chapter 5 describes how to service the major components of the disk tray and how
to upgrade disk tray firmware.

Appendix A contains listings of disk tray specifications.

Appendix B contains an illustrated parts list.

Glossary is a list of words and phrases and their definitions. Glossary terms are
italicized in the text.

Using UNIX Commands

This document contains some information on basic UNIX

®

commands and

procedures such as booting the devices. For further information, see one or more of
the following:

■

AnswerBook2™ online documentation for the Solaris™ software environment

■

Other software documentation that you received with your system

Содержание Sun StorEdge T3

Страница 1: ...01 San Antonio Road Palo Alto CA 94303 U S A 650 960 1300 Send comments about this document to docfeedback sun com Sun StorEdge T3 Disk Tray Installation Operation and Service Manual Part No 806 1062 11 July 2000 Revision A ...

Страница 2: ...Sun Microsystems Inc 901 San Antonio Road Palo Alto CA 94303 4900 Etats Unis Tous droits réservés Ce produit ou document est protégé par un copyright et distribué avec des licences qui en restreignent l utilisation la copie la distribution et la décompilation Aucune partie de ce produit ou document ne peut être reproduite sous aucune forme par quelque moyen que ce soit sans l autorisation préalabl...

Страница 3: ...e not approved by Sun Microsystems Inc may void the authority granted to the user by the FCC to operate this equipment FCC Class B Notice This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation...

Страница 4: ...his Class A digital apparatus complies with Canadian ICES 003 Cet appareil numérique de la classe A est conforme à la norme NMB 003 du Canada ICES 003 Class B Notice Avis NMB 003 Classe B This Class B digital apparatus complies with Canadian ICES 003 Cet appareil numérique de la classe B est conforme à la norme NMB 003 du Canada ...

Страница 5: ...Regulatory Compliance Statements v BSMI Class A Notice The following statement is applicable to products shipped to Taiwan and marked as Class A on the product compliance label ...

Страница 6: ...vi Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 ...

Страница 7: ...ble for regulatory compliance of a modified Sun product Placement of a Sun Product Caution Do not block or cover the openings of your Sun product Never place a Sun product near a radiator or heat register Failure to follow these guidelines can cause overheating and affect the reliability of your Sun product Caution The workplace dependent noise level defined in DIN 45 635 Part 1000 must be 70Db A ...

Страница 8: ...behördlicher Vorschriften Auf dieser Seite werden Sicherheitsrichtlinien beschrieben die bei der Installation von Sun Produkten zu beachten sind Sicherheitsvorkehrungen Treffen Sie zu Ihrem eigenen Schutz die folgenden Sicherheitsvorkehrungen wenn Sie Ihr Gerät installieren Beachten Sie alle auf den Geräten angebrachten Warnhinweise und Anweisungen Vergewissern Sie sich daß Spannung und Frequenz I...

Страница 9: ...duzieren schließen Sie das Kabel nur an eine fachgerecht verlegte geerdete Steckdose an Die folgende Warnung gilt nur für Geräte mit Wartezustand Netzschalter Achtung Die Ein Aus Schalter dieses Geräts schalten nur auf Wartezustand Stand By Modus Um die Stromzufuhr zum Gerät vollständig zu unterbrechen müssen Sie die Netzkabel aus der Steckdose ziehen Alle Netzkabel müssen ausgesteckt sein um die ...

Страница 10: ...st élevée et leur contact peut provoquer des blessures corporelles Attention présence de tensions dangereuses Pour éviter les risques d électrocution et de danger pour la santé physique veuillez suivre les instructions MARCHE votre système est sous tension courant alternatif Un des symboles suivants sera peut être utilisé en fonction du type d interrupteur de votre système ARRET votre système est ...

Страница 11: ...que Panasonic modèle HHR200SCP Il existe un risque d explosion si cette batterie est manipulée de façon erronée ou mal mise en place Ne remplacez cette batterie que par une batterie Sun Microsystems du même type Ne la démontez pas et n essayez pas de la recharger hors du système Ne faites pas brûler la batterie mais mettez la au rebut conformément aux réglementations locales en vigueur Couvercle A...

Страница 12: ...ento de la normativa SELV El estado de la seguridad de las conexiones de entrada salida cumple los requisitos de la normativa SELV Conexión del cable de alimentación eléctrica Precaución Los productos Sun están diseñados para trabajar en una red eléctrica monofásica con toma de tierra Para reducir el riesgo de descarga eléctrica no conecte los productos Sun a otro tipo de sistema de alimentación e...

Страница 13: ...ón puede ocasionar daños personales o perjudicar el funcionamiento del equipo Aviso de cumplimiento con requisitos de láser Los productos Sun que utilizan la tecnología de láser cumplen con los requisitos de láser de Clase 1 Precaución El manejo de los controles los ajustes o la ejecución de procedimientos distintos a los aquí especificados pueden exponer al usuario a radiaciones peligrosas GOST R...

Страница 14: ...xiv Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 ...

Страница 15: ...2 Controller Card 1 5 1 3 3 Interconnect Card 1 7 1 3 4 Power and Cooling Unit 1 8 1 4 Architecture 1 9 1 5 Supported Configurations 1 10 2 Installation 2 1 2 1 Preparing for the Installation 2 2 2 1 1 Electrical Requirements 2 2 2 1 2 Placement 2 2 2 2 Inspecting the Disk Tray 2 3 2 3 Editing the Host Files 2 5 2 4 Installing the Disk Tray 2 7 2 4 1 Tabletop Placement 2 7 ...

Страница 16: ... Changing the Default Configuration 2 40 2 12 Connecting the Host System 2 40 2 12 1 Verifying the Data Host Connection 2 41 2 12 2 Establishing Logical Volumes on the Host 2 41 2 12 3 Creating Soft Partitions on the Data Host 2 42 2 12 4 Establishing Alternate Pathing on the Host 2 43 3 Operation 3 1 3 1 Powering Off and On 3 1 3 1 1 Powering Off 3 1 3 1 2 Powering On 3 2 3 2 Reconfiguring the Di...

Страница 17: ...mponents 5 2 5 2 1 Disk Drives 5 3 5 2 2 Power and Cooling Units 5 7 5 2 3 UPS Battery 5 10 5 2 4 Interconnect Cards 5 11 5 2 5 Controller Card 5 14 5 2 6 Chassis 5 16 5 3 Upgrading Firmware 5 16 5 3 1 Upgrading Controller Firmware 5 17 5 3 2 Upgrading Controller EPROM Firmware 5 19 5 3 3 Upgrading Interconnect Card Firmware 5 20 5 3 4 Upgrading Disk Drive Firmware 5 22 A Specifications A 1 A 1 Po...

Страница 18: ...n StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 A 5 Connectors A 4 A 5 1 10BASE T Connector A 4 A 5 2 RS 232 Serial Port Connector A 5 B Illustrated Parts B 1 Glossary G 1 Index I 1 ...

Страница 19: ... Pull out Tab 2 4 FIGURE 2 3 Removing the Feet 2 9 FIGURE 2 4 Baseplate for Sun StorEdge Expansion Cabinet 2 10 FIGURE 2 5 Positioning a Single Tray Rail and Threading Screws 2 11 FIGURE 2 6 Positioning a Dual Tray Rail and Threading Screws 2 12 FIGURE 2 7 Aligning the Disk Tray Chassis and Baseplate With the Side Rails 2 14 FIGURE 2 8 Securing the Disk Tray Chassis 2 15 FIGURE 2 9 Installing a Se...

Страница 20: ...E 5 1 Removing the Front Panel 5 4 FIGURE 5 2 Disk Drive Numbering 5 4 FIGURE 5 3 Releasing the Latch Handle 5 5 FIGURE 5 4 Removing a Disk Drive 5 6 FIGURE 5 5 Power Cords Connected to the Power and Cooling Units 5 7 FIGURE 5 6 Removing the Power and Cooling Unit 5 9 FIGURE 5 7 Removing the Interconnect Card 5 13 FIGURE 5 8 Removing the Controller Card 5 15 FIGURE A 1 10BASE T Connector A 4 FIGUR...

Страница 21: ...T3 Site Preparation and Planning Guide and the Sun StorEdge T3 Configuration Guide available from your Sun representative Work with your Sun representative to determine if you require any external hardware or software products for using this device Being prepared with this knowledge and the appropriate tools will simplify the installation How This Book Is Organized This manual is organized as foll...

Страница 22: ...onents of the disk tray and how to upgrade disk tray firmware Appendix A contains listings of disk tray specifications Appendix B contains an illustrated parts list Glossary is a list of words and phrases and their definitions Glossary terms are italicized in the text Using UNIX Commands This document contains some information on basic UNIX commands and procedures such as booting the devices For f...

Страница 23: ...with on screen computer output su Password AaBbCc123 Book titles new words or terms words to be emphasized glossary terms Command line variable replace with a real name or value Read Chapter 6 in the User s Guide These are called class options You must be superuser to do this To delete a file type rm filename TABLE P 2 Shell Prompts Shell Prompt C shell machine_name C shell superuser machine_name ...

Страница 24: ...Installation Task Map 806 1061 Administration Sun StorEdge T3 Disk Tray Administrator s Guide 806 1063 Release notes Sun StorEdge T3 Disk Tray Release Notes 806 1497 Disk drive specifications 18 Gbyte 10K rpm Disk Drive Specifications 806 1493 36 Gbyte 10K rpm Disk Drive Specifications 806 1491 Component Manager installation Sun StorEdge Component Manager Installation Guide 806 4811 Using Componen...

Страница 25: ...docs sun com archive or search for a specific book title or subject at http docs sun com Sun Welcomes Your Comments We are interested in improving our documentation and welcome your comments and suggestions You can email your comments to us at docfeedback sun com Please include the part number 806 1062 11 of your document in the subject line of your email ...

Страница 26: ...xxvi Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 ...

Страница 27: ...er provides a high level introduction to the Sun StorEdge T3 disk tray product line and is organized as follows Product Description on page 1 2 Disk Tray Features on page 1 3 Components on page 1 4 Architecture on page 1 9 Supported Configurations on page 1 10 ...

Страница 28: ...ne storage unit or as a building block interconnected with other Sun StorEdge T3 disk trays and configured in various ways to provide a storage solution optimized to the host application The disk tray can be placed on a table top or rackmounted in a server cabinet or expansion cabinet The Sun StorEdge T3 disk tray expansion unit contains the same components as the Sun StorEdge T3 disk tray control...

Страница 29: ...ity per unit 162 GB 9 x 18 2 GB drives 256 MB cache Performance per controller 90 MB sec for large RAID 5 reads from disk 64K 85 MB sec for large RAID 5 writes to disk 4 400 IOPS for 8 KB 100 cache hit reads Connectivity per controller FC AL copper for optical using MIA provided 10BASE T network port Scalability one to two units one to two controllers 324 GB maximum capacity 256 to 512 MB cache On...

Страница 30: ...d external chassis are physically connected and are available as one field replaceable unit FRU This FRU must be replaced by a qualified field service representative only 1 3 1 Disk Drive Behind the panel at the front of the disk tray are nine Fibre Channel disk drives numbered drive 1 through drive 9 from left to right Each drive is in an enclosed canister that is easily installed and removed fro...

Страница 31: ...he RAID controller hardware and firmware as well as a host Fibre Channel interface an Ethernet 10BASE T host interface an RS 232 serial port for special service procedures and 256 Mbytes of high speed synchronous dynamic random access memory SDRAM data cache Chapter 5 provides information on how to service the controller card 1 2 3 4 9 ...

Страница 32: ...1 6 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 FIGURE 1 3 Controller Card Rear View Controller card ...

Страница 33: ...nterconnecting multiple Sun StorEdge T3 disk trays It provides loop switch capability and contains an environmental monitor for the disk tray Each disk tray contains two interconnect cards for redundancy For information on how to service the interconnect card see Chapter 5 FIGURE 1 4 Interconnect Cards Rear View Interconnect card 1 Interconnect card 2 ...

Страница 34: ...ans an integrated uninterruptible power source UPS battery and LED status indicators for AC power Each tray contains two power and cooling units for redundancy See Chapter 5 for information on how to service the power and cooling unit and for information on UPS battery maintenance FIGURE 1 5 Power and Cooling Units Rear View Power and cooling unit 1 Power and cooling unit 2 ...

Страница 35: ...ng controller and data path redundancy and mirrored caches for high availability Partner groups support host based alternate pathing for enhanced availability Data and administrative paths are completely independent for reliability security serviceability and ease of use The network based administrative path allows for centralized configuration and monitoring of large numbers of Sun StorEdge T3 di...

Страница 36: ...dundant hot swap components and nine disk drives FIGURE 1 6 Single Controller Unit Configuration Partner group This is a configuration of two controller units paired using interconnect cables for back end data and administrative connections The partner group provides all the RAS of single controller units plus redundant hardware RAID controllers with mirrored caches and redundant host channels for...

Страница 37: ... StorEdge T3 Disk Tray Overview 1 11 FIGURE 1 7 Partner Group Configuration Application host Management host Ethernet 10BASE T 10BASE T FC AL connection MIA Interconnect cables port LAN HBA HBA MIA FC AL connection ...

Страница 38: ...1 12 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 ...

Страница 39: ... Tray on page 2 7 Connecting the Cables on page 2 17 Powering On and Verifying the Hardware Configuration on page 2 24 Establishing a Network Connection on page 2 25 Verifying the Firmware Level and Configuration on page 2 28 Installing the Administration Tools on page 2 33 Defining and Mounting Volumes on page 2 33 Changing the Default Configuration on page 2 40 Connecting the Host System on page...

Страница 40: ...t The 10BASE T cable is not included with the ship kit and must be purchased separately 2 1 1 Electrical Requirements The disk tray uses nominal input voltages of 100 120 VAC or 200 240 VAC Sun products are designed to work with single phase power systems that have a grounded neutral conductor See Appendix A for additional specifications Caution To reduce the risk of electrical shock do not connec...

Страница 41: ... media interface adapter MIA One 5m fiber optic cable Two power cords The MIA and cables are illustrated in Appendix B and in Section 2 5 Connecting the Cables on page 2 17 2 Inspect the disk tray for evidence of damage If the disk tray is damaged keep all contents and packing materials for the shipping company s agent to inspect 3 Save the packing materials for future use 4 Remove the front panel...

Страница 42: ...he pull out tab at the left side of the disk tray next to the first disk drive FIGURE 2 2 This tab contains the disk tray serial number and media access control MAC address Record this information you will need the MAC address for the installation FIGURE 2 2 Serial Number and MAC Address on Pull out Tab Latch Latch Pull out tab ...

Страница 43: ... MAC address IP address For this information contact the person who maintains your network Disk tray name This is the user assigned name of the disk tray you are installing Note If you are configuring a redundant controller configuration partner group you need the MAC address that will be assigned only to the master unit disk tray In a partner group this is the disk tray that is located on the bot...

Страница 44: ...etc ethers and etc hosts files edit the host and ethers entries in the etc nsswitch conf file so that the files parameter appears before the NOTFOUND return statements 4 Determine if the RARP daemon is running by typing If the RARP daemon is running proceed to Section 2 4 Installing the Disk Tray on page 2 7 If the RARP daemon is not running proceed to the next step 5 Start the RARP daemon in the ...

Страница 45: ...Tabletop Placement on page 2 7 If you are mounting the disk tray s in a server cabinet or expansion cabinet proceed to Section 2 4 2 Cabinet Installation on page 2 8 2 4 1 Tabletop Placement The disk tray is designed to sit on a desk or table Use the following guidelines to prepare a location for your system Choose a desk or table that can support up to 67 pounds 30 kg for one fully configured dis...

Страница 46: ...bling Proceed to Section 2 5 Connecting the Cables on page 2 17 for cabling instructions 2 4 2 Cabinet Installation Note Refer to your product announcement literature from your Sun sales representative to determine if mounting the disk tray in a cabinet is an available option at this time You can install the disk tray unit in either a server cabinet or an expansion cabinet If you are installing a ...

Страница 47: ...and move the disk tray Use care to avoid injury A disk tray with a baseplate attached can weigh up to 87 pounds 39 kg 2 4 2 1 Installing the Baseplate 1 With the aid of an assistant invert the disk tray so that the bottom faces up and the front is facing you 2 Remove the feet from the disk tray by turning each one counterclockwise FIGURE 2 3 FIGURE 2 3 Removing the Feet ...

Страница 48: ...rews FIGURE 2 4 Baseplate for Sun StorEdge Expansion Cabinet 4 With the aid of an assistant restore the disk tray to the upright position with the front of the disk tray facing you 2 4 2 2 Preparing the Cabinet Follow the instructions on preparing for service in your server cabinet or expansion cabinet documentation Be sure to Extend the stabilizer legs Remove or open the top front panel Remove or...

Страница 49: ...ces that are detailed in the illustrations that follow 1 Loosely thread the two top screws into the hole numbers as specified in the Rackmount Placement Matrix The side rails could be easily misaligned if you select the wrong holes 2 Place the left side rail in the cabinet Align the open slotted holes at the top of the rail with the screws you installed in Step 1 See FIGURE 2 5 for a single rail i...

Страница 50: ...2 12 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 FIGURE 2 6 Positioning a Dual Tray Rail and Threading Screws ...

Страница 51: ...hassis in the Cabinet Caution The cabinet can become front heavy while the disk tray is being installed Unless your cabinet is bolted to the floor ensure that the stabilizer legs are extended before proceeding Failure to extend the legs can result in the cabinet tipping forward and injuring personnel Caution This installation requires two people to lift and move the disk tray Use care to avoid inj...

Страница 52: ... T3 Disk Tray Installation Operation and Service Manual July 2000 FIGURE 2 7 Aligning the Disk Tray Chassis and Baseplate With the Side Rails 3 Rest the disk tray chassis on the side rails and then slide the chassis in ...

Страница 53: ...Chapter 2 Installation 2 15 4 Secure the disk tray into the rails by threading the two screws into the baseplate at the back of the disk tray chassis FIGURE 2 8 Securing the Disk Tray Chassis ...

Страница 54: ... proceed to Section 2 5 Connecting the Cables on page 2 17 Caution If you need to remove the disk tray make sure you have someone to assist you one of you should be positioned at the front of the cabinet and one at the back The person at the back of the cabinet can push it forward slightly after removing the mounting screws The person at the front of the cabinet should be ready to take hold and st...

Страница 55: ...s and adapters FIGURE 2 10 Fiber optic cable one per unit Media interface adapter MIA one per unit AC power cords two per unit 10BASE T interface cable 1 per controller unit not illustrated The 10BASE T cable is not packaged with the disk tray and must be purchased separately Interconnect cables one pair of cables per partner group Note Your Sun StorEdge T3 disk tray packaging might not have inclu...

Страница 56: ...s 1 Connect one end of the fiber optic cable to the host adapter 2 Attach an MIA to the other end of the fiber optic cable FIGURE 2 11 3 Connect the MIA to the FC AL connector on the controller board at the back of the master unit Tighten the retaining screws Fiber optic cable MIA Interconnect cable AC power cord ...

Страница 57: ...ecting the Fiber Optic Cable and MIA to the FC AL Connector 4 Partner group only Repeat Step 1 through Step 3 to connect a second fiber optic cable to a separate host adapter and to the alternate master unit MIA Fiber optic cable FC AL connector ...

Страница 58: ...10BASE T Cable 6 Attach the other end of the 10BASE T cable to a network hub or router Note You must use a shielded 10BASE T interface cable to comply with regulatory emissions requirements 7 Partner group only Repeat Step 5 and Step 6 to connect the alternate master unit to a hub or router using a second 10BASE T cable Connect this cable to a hub or router on the same network as the master unit 1...

Страница 59: ... Step 8 to connect the power cords to the alternate master unit Caution Do not power on the units yet If you are connecting a single disk tray unit proceed to Section 2 6 Powering On and Verifying the Hardware Configuration on page 2 24 for instructions on powering on the unit If you are connecting a partner group proceed to Step 10 Power button AC power cords AC LED PS LED Power button AC LED PS ...

Страница 60: ...E 2 14 Make sure you connect the cables to the correct interconnect card connectors exactly as shown in the figure This cable connection determines the master and alternate master relationship Tighten the retaining screws The remaining connectors are reserved for expansion units FIGURE 2 14 Connecting the Interconnect Cables Master controller unit Alternate master controller unit ...

Страница 61: ...URE 2 15 Fully Cabled Partner Group Note The cabling for a single disk tray configuration would appear similar to the disk trays shown in FIGURE 2 15 except there would not be interconnect cables attached to the interconnect cards Master controller unit Alternate master controller unit ...

Страница 62: ...n all disk trays to power on the units FIGURE 2 13 on page 2 21 shows the power button location The AC and power supply PS LEDs on the power and cooling units will be green 4 Check the LEDs at the front and back of the unit to ensure that all components are receiving power and are functional While the drives are spinning up the LEDs will blink The disk tray boot time will take up to several minute...

Страница 63: ... information Note The telnet session will not connect until the controller LEDs are green 1 On the host use the telnet command with the disk tray name or IP address to connect to the disk tray For example Note The telnet session will verify that your network connection is good If you cannot connect through the telnet session see the troubleshooting information in the Sun StorEdge T3 Disk Tray Admi...

Страница 64: ...sing the set gateway command The gateway address enables you to access the disk tray outside the subnet For example 5 Set the netmask using the set netmask command The netmask specifies the network mask used to implement IP subnetting 6 Set the host name using the set hostname command Login root Password Return T300 Release 1 13 2000 05 17 16 15 41 129 150 47 104 Copyright C 1997 2000 Sun Microsys...

Страница 65: ...ifference would be minus eight hours 0800 from GMT as shown 8 Set the date using the date command The date syntax is yyyymmddHHMM SS For example 9 Reset the disk tray using the reset command Answer y when prompted for confirmation A reset will disconnect the telnet session with the disk tray The disk tray will reboot This can take up to several minutes 10 On the host exit the telnet session by pre...

Страница 66: ...nd disk tray information in a telnet session with the disk tray 1 On the host use the telnet command with the disk tray name or IP address to connect to the disk tray For example 2 Log in to the disk tray by typing root and your root password at the prompts The disk tray prompt is displayed 3 Type ver to identify the controller firmware For example The ver command displays the header information I...

Страница 67: ...k drive SEAGATE ST118202FSUN EA29 LKG82282 u1d9 disk drive SEAGATE ST118202FSUN EA29 LKG95302 u2d1 disk drive SEAGATE ST118202FSUN EA29 LKG63405 u2d2 disk drive SEAGATE ST118202FSUN EA29 LKH57340 u2d3 disk drive SEAGATE ST118202FSUN EA29 LKD20515 u2d4 disk drive SEAGATE ST118202FSUN EA29 LKG89040 u2d5 disk drive SEAGATE ST118202FSUN EA29 LKG89845 u2d6 disk drive SEAGATE ST118202FSUN EA29 LKG82866 ...

Страница 68: ...structions in Section 5 3 Upgrading Firmware on page 5 16 If you do not need to upgrade firmware proceed to Step 7 7 Type port list to display how the paths are mapped from the host to the volumes An example of port list output for a single controller unit Use the world wide number wwn from the port list output to map the volume to the Solaris environment using the format 1m utility on the data ho...

Страница 69: ... group 9 Type vol mode to display the cache and mirror settings and to determine whether the volume is mounted The default settings for a single controller unit are as follows t300 9 sys stat Unit State Role Partner 1 ONLINE Master t300 10 sys stat Unit State Role Partner 1 ONLINE Master 2 2 ONLINE AlterM 1 t300 11 vol mode volume mounted cache mirror v0 yes writethrough off ...

Страница 70: ...ady 40 v0 u1d8 ready enabled data disk ready ready 36 v0 u1d9 ready enabled data disk ready ready 29 v0 u2d1 ready enabled data disk ready ready 42 v1 u2d2 ready enabled data disk ready ready 36 v1 u2d3 ready enabled data disk ready ready 35 v1 u2d4 ready enabled data disk ready ready 35 v1 u2d5 ready enabled data disk ready ready 40 v1 u2d6 ready enabled data disk ready ready 36 v1 u2d7 ready ena...

Страница 71: ...ry steps to verify the installation launch the software and uninstall the software The Sun StorEdge Component Manager User s Guide describes how to use the GUI to administer Sun StorEdge T3 disk trays 2 10 Defining and Mounting Volumes This section includes information on defining and mounting volumes for both a single controller unit configuration and a partner group For information on the comman...

Страница 72: ...0 1 Single Controller Unit Configuration on page 2 35 If you have a partner group configuration and want to mount the default volumes skip to Section 2 10 2 Partner Group Configuration on page 2 37 Note If you are creating new volumes or changing the volume configuration you must first manually rewrite the label of the previous volume using the autoconfigure option of the format 1M utility Refer t...

Страница 73: ...of 0 Other possible status messages are listed in the following table If the vol stat output shows the volume as mounted skip to Step 4 If the vol stat output shows the volume as unmounted go to the next step 2 Use the vol mount command to mount the volume t300 2 vol stat v0 u1d1 u1d2 u1d3 u1d4 u1d5 u1d6 u1d7 u1d8 u1d9 unmounted 0 0 0 0 0 0 0 0 0 TABLE 2 1 Drive Status Messages Value Description 0...

Страница 74: ...he host system type luxadm insert Note If the luxadm utility is not available you will have to do a reconfiguration reboot boot r to ensure that the host recognizes the new volumes It is preferable however to use the luxadm command for this procedure instead of the boot r command 5 Verify that the new volume is available to the host system by using the format 1M command on the data host t300 5 vol...

Страница 75: ...volume unmounted is the status of the volume u1d1 u1d9 are the disk drives in the volume 0 is the status of the disk drives in the volume All the disk drives should show a status of 0 Possible status messages are listed in TABLE 2 1 If the vol stat output shows the volume as mounted skip to Step 4 If the vol stat output shows the volume as unmounted go to the next step 2 Type vol mount to mount th...

Страница 76: ... stat to check the status of the volumes The status of all drives must be 0 For example 6 Use the vol init command to initialize the volume on the alternate master Depending on system activity at the time of initialization it can take up to an hour to initialize a volume Only one volume can be initialized at a time 7 Use the vol mount command to mount the volume on the alternate master t300 4 vol ...

Страница 77: ...oot r to ensure that the host recognizes the new volumes It is preferable however to use the luxadm command for this procedure instead of the boot r command 10 Verify that the new volume is available to the host system by using the format 1M command on the data host t300 8 vol list volume capacity raid data standby v0 143 2 GB 5 u1d1 9 none v1 143 2 GB 5 u2d1 9 none mkdir dev es luxadm insert form...

Страница 78: ...The command line procedures for reconfiguring the disk tray are in the Sun StorEdge T3 Disk Tray Administrator s Guide Once you have reconfigured the disk tray return to this chapter and proceed to Section 2 12 Connecting the Host System on page 2 40 If you are not changing the default configuration proceed to Section 2 12 Connecting the Host System on page 2 40 2 12 Connecting the Host System Thi...

Страница 79: ...e 2 12 2 Establishing Logical Volumes on the Host Using the format 1M utility within the Solaris environment you can view the disk space available on the disk tray from the host At this point in the installation process you can use this disk space as you would any physical disk This includes performing operations such as installing a file system using the device as a raw device or partitioning the...

Страница 80: ...tes blk 1 Gbyte 10243 66 69 Gbytes There is no loss of actual disk capacity 2 12 3 Creating Soft Partitions on the Data Host The Sun StorEdge T3 disk tray s native volume management can support a maximum of two volumes or logical units LUNs per disk tray unit This can result in very large volumes 128 Gbytes in a configuration of single 7 1 RAID 5 LUN plus hot spare with 18 Gbyte drives Some applic...

Страница 81: ...ture of VERITAS Volume Manager or the Solaris alternate pathing software When a failure occurs in the host data path the alternate pathing mechanism reroutes data to the other disk tray controller in the partner group The controller then redirects the data across one of the back end loops to the disks of the other controller thus maintaining data availability to the host application For more infor...

Страница 82: ... 2000 2 At the disk tray prompt type 3 Use the sys list command to verify that the mirror setting is set to auto t300 1 sys mp_support rw t300 2 sys list blocksize 64k cache auto mirror auto mp_support rw rd_ahead on recon_rate med sys memsize 32 MBytes cache memsize 256 MBytes ...

Страница 83: ... rebooted from the host side you will see two paths available to the same volume a primary path and an alternate path This means that if you are using the format 1M utility in the Solaris environment you will see two paths for each volume This completes the installation process for a partner group configuration For information on available Sun StorEdge T3 disk tray settings and monitoring options ...

Страница 84: ...2 46 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 ...

Страница 85: ... do not need to power off the disk tray except under the following circumstances Hardware reconfiguration Relocation Replacement of the centerplane and chassis Emergency such as a threat of flooding 3 1 1 Powering Off Caution This procedure will power off the disk tray and all disk trays connected to it Note If the disk tray is operating in the Solaris environment and there are volumes mounted unm...

Страница 86: ... Locations 3 1 2 Powering On When powering on a configuration always power on the Sun StorEdge T3 disk trays before booting the host server Power on the master unit by pressing the power button on each power and cooling unit At this point all power and cooling unit LEDs on the disk tray and any units connected to it will turn green indicating that power has been restored Note If the green power an...

Страница 87: ...failed drive until you replace it When you replace the failed drive data from the hot spare is copied back to the replaced drive and the hot spare returns to a standby status Parity is additional information stored along with the data that enables the controller to rebuild data after a drive failure Only RAID 5 volumes have parity RAID 1 uses mirroring not parity which enables the controller to re...

Страница 88: ... 2 2 RAID Levels The RAID level determines how the controller reads and writes data and parity on the drives The Sun StorEdge T3 disk tray can be configured with RAID level 0 RAID level 1 1 0 or RAID level 5 The default configuration is a RAID level 5 The following sections describe the data layout for each of the three RAID levels TABLE 3 1 Volume Configuration Examples Volume 1 Volume 2 Hot spar...

Страница 89: ...ity is 2 x 18 36 Gbytes TABLE 3 3 shows the data blocks in a RAID 1 1 0 volume with 9 drives 3 2 2 3 RAID 5 In RAID level 5 data is striped across the drives in the volumes in segments with parity information striped across the drives as well Because of this parity if a single drive fails data can be recovered from the remaining drives Two drive failures cause all data to be lost A RAID 5 volume h...

Страница 90: ...Sun StorEdge T3 disk tray is set to auto In the auto cache mode if the disk tray has full redundancy available then the caching mode is write behind If any component is nonredundant then the cache mode is set to write through Read caching is always performed This mode provides the best performance while retaining full redundancy protection The write behind cache mode forces write behind caching to...

Страница 91: ...s been disabled the disk tray is designed to protect the data in cache If any hardware component fails that might compromise the safety of this data the disk tray will disable write behind cache causing outstanding cached data to be flushed to disk Write behind caching is re enabled when the failed condition has been corrected TABLE 2 Cache Transition States Failure or Problem Write Behind Cache S...

Страница 92: ... operation is complete the volume is operating with full redundancy protection so another drive in the volume may fail without loss of data After a drive has been replaced the original data is automatically reconstructed on the new drive If no hot spare was used the data is regenerated using the RAID redundancy data in the volume If the failed drive data has been reconstructed onto a hot spare onc...

Страница 93: ...rEdge Component Manager User s Guide For information on installing the software refer to the Sun StorEdge Component Manager Installation Guide 3 3 2 SNMP Notification SNMP notification directs the software to send remote notification of disk tray events to the administrator s host by using SNMP traps An SNMP trap is a UDP datagram sent to a set of hosts that are identified by their IP addresses Th...

Страница 94: ...te monitoring There are four possible levels of messages Error Indicates a critical system event requiring immediate user intervention or attention For example an over temperature condition or a removed FRU Warning Indicates a system event that will eventually require user intervention For example a FRU being disabled and a recovery procedure being executed Notice Indicates a system event that may...

Страница 95: ...e following four resources A host generated message found in the var adm messages file indicating a problem with the host channel connection to the disk tray unit A message generated by the Sun StorEdge Component Manager software indicating a problem A telnet session that monitors the disk tray unit for its status The disk tray LEDs which provide a visual status 4 1 1 Host Generated Message The da...

Страница 96: ...t through a polling routine The Component Manager GUI displays information on the unit including the suspected problem area The software can be configured to route error messages to a log file generate an email or page an on call person The log file contains information that you can use to determine the fault and what caused the message to be sent 4 1 3 Telnet Session The telnet session is a direc...

Страница 97: ...he LED states are shown in the following sections Even though the LED indicates a FRU failure you should always verify the FRU status using either the CLI or Component Manager before replacing the component Refer to the Sun StorEdge T3 Disk Tray Administrator s Guide or the Sun StorEdge Component Manager User s Guide for instructions Note See Chapter 5 for instructions on how to service a failed F...

Страница 98: ...rive LEDs Viewed Through Front Cover Note See Chapter 5 for instructions on how to service a failed disk drive TABLE 4 1 Disk Drive LED Descriptions Drive Activity green Drive Status amber Description Off Off Drive not installed not recognized Slow blink Off Drive is spinning up or down Solid Off Drive OK idle Flashing Off Drive OK activity n a Solid Drive reconstruct firmware download in progress...

Страница 99: ...er and Cooling Unit LED Descriptions AC LED green or amber PS LED green or amber Description Off Off Power is off No AC input Amber Off Power is off Power switch turned off AC power is available Green Off Occurs when disk tray is shut down PCU disabled AC power is available Green Green Normal operating state PCU receiving AC power Power switch is turned on AC power is available Amber Amber Switch ...

Страница 100: ... Both fans fault PCU disabled Battery on refresh cycle Green Blinking green Battery not OK Green Blinking amber Indicates one or more of following PCU disabled One fan fault Battery hold time low PCU remains enabled Battery out of warranty PCU remains enabled Battery life span failure PCU remains enabled Note Verify a power and cooling unit failure using the CLI or Component Manager TABLE 4 2 Powe...

Страница 101: ... 3 Interconnect Card LED Descriptions Interconnect Card Status LED green or amber Description Off Interconnect card not installed not recognized Green solid Interconnect card OK Cable OK if present Green slow blink Interconnect card OK Cable bad OK to replace cable Amber solid Interconnect card firmware download in progress Amber slow blink Interconnect card failure OK to replace interconnect card...

Страница 102: ...te See Chapter 5 for instructions on how to service a failed controller card TABLE 4 4 Channel Active LED Descriptions Channel Active LED green Description Off Port disabled Solid Port enabled idle Blinking Port enabled activity TABLE 4 5 Controller Status LED Descriptions Controller Status LED green or amber Description Off Controller not installed not recognized Green Controller OK Amber Control...

Страница 103: ...Edge T3 disk tray To determine failures in the data path you must use host based application diagnostics such as the StorTools product for the Solaris operating environment Refer to the documentation of the selected diagnostics tool for information on identifying data channel failures 4 3 FRU Failures FRU failures are reported by means of an alarm or message notification from the tool used to moni...

Страница 104: ...4 10 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 ...

Страница 105: ...placing Components on page 5 2 Disk Drives Power and Cooling Units UPS Battery Interconnect Cards Controller Card Chassis Upgrading Firmware on page 5 16 Upgrading Controller Firmware Upgrading Controller EPROM Firmware Upgrading Interconnect Card Firmware Upgrading Disk Drive Firmware Caution Any FRU that is removed must be replaced within 30 minutes or the Sun StorEdge T3 disk tray and all attac...

Страница 106: ...a FRU only by its edges and avoid touching the circuitry Do not slide a FRU over any surface Avoid having plastic vinyl and foam in the work area Limit body movement which builds up static electricity during FRU installation Caution Although the disk tray will remain operational for up to 30 minutes with a FRU removed replace a failed FRU as soon as you have removed it from the disk tray 5 2 Remov...

Страница 107: ...es if disk drives are removed and replaced on a powered down or incompletely booted disk tray the internal system monitoring facilities may not correctly detect the drive replacement Therefore replace disk drives on powered up fully booted disk trays only 5 2 1 1 Disk Drive LEDs The top of each disk drive has LEDs that indicate drive activity and status For information about the disk drive LEDs an...

Страница 108: ... electricity precautions 2 Remove the front panel by pressing in on the side latches and pulling the front panel forward FIGURE 5 1 Removing the Front Panel 3 Locate the disk drive that needs to be replaced Disk drives are numbered from 1 to 9 starting on the left side of the disk tray FIGURE 5 2 Disk Drive Numbering Latch Latch Disk 1 Disk 9 ...

Страница 109: ... slowly pull the disk drive out an inch Wait 30 seconds before pulling the drive out completely giving the disk drive time to spin down 6 Remove the disk drive from the disk tray FIGURE 5 4 Caution Any disk drive that is removed must be replaced within 30 minutes or the Sun StorEdge T3 disk tray and all attached disk trays will automatically shut down and power off ...

Страница 110: ... the middle of the rails and push it in until it is seated with the centerplane connector 10 Use a coin or small screwdriver to press in and lock the latch handle 11 Replace the front panel Caution You must replace the front panel for the disk tray to meet FCC safety regulations 12 Using Component Manager or the CLI verify that there are no disk drive errors Refer to the Sun StorEdge Component Man...

Страница 111: ...are turned off system primary power will not actually turn off until the controller has performed an orderly shutdown including writing any data cache to disk This process can take up to two minutes Separate power cords are used for the connector on each power and cooling unit to provide redundant cabling The power cords need to be connected to alternate AC power sources for full redundancy FIGURE...

Страница 112: ...failed power and cooling unit should be removed only when a replacement power and cooling unit is available to be inserted Caution Replace only one power and cooling unit at a time to prevent system interruption To replace a power and cooling unit 1 Power off the power and cooling unit by pressing the power switch FIGURE 5 5 Make sure that the AC LED is amber and the PS LED is off 2 Disconnect the...

Страница 113: ...wer and cooling unit 7 Lock the new power and cooling unit by pushing in both latch handles 8 Insert the power cord into the power and cooling unit connector 9 Connect the power cord to the AC outlet Verify that the AC LED on the power and cooling unit is amber indicating that AC power is present 10 Push the power and cooling unit power switch on Verify that both LEDs on the power and cooling unit...

Страница 114: ...fresh cycle ensuring that only one battery in a disk tray is refreshed at a time This refresh cycle verifies the health of the battery During the refresh if a problem is detected with the battery future refresh operations are suspended until the problem is fixed If this happens write behind caching is turned off automatically as a safety precaution A refresh cycle will not begin unless both power ...

Страница 115: ...rd for interconnecting multiple Sun StorEdge T3 disk trays The interconnect card also contains the environmental monitor for the disk tray If an interconnect card or cable fails the disk tray continues to function using the remaining interconnect card and cable The interconnect cards in a disk tray are assigned a master and slave status similar to the controller card If you unplug or remove the ma...

Страница 116: ... Preparing for Service on page 5 2 for a list of static electricity precautions Caution Replace one interconnect card at a time Follow the procedure as described to ensure that there is no interruption in system operation or loss of data To prevent interruption of system operation during interconnect card replacement make sure that In a single controller unit configuration remove only the failed i...

Страница 117: ...all attached disk trays will automatically shut down and power off 6 Insert the new interconnect card making sure that the card sits on the frame 7 Lock the new interconnect card in place by pushing in on the latch handle 8 Reconnect the interconnect cable to the interconnect card 9 Verify that the LEDs on the interconnect card show that the interconnect card has initialized properly You can verif...

Страница 118: ...ne When a controller card is replaced the disk tray automatically downloads the previous settings to the new controller card The disk tray is fully functional once the new controller card is installed and the controller is online 5 2 5 1 Controller Card LEDs The controller card has a channel active LED for the host interface port a controller status online LED and a reset switch For the locations ...

Страница 119: ... trays will automatically shut down and power off FIGURE 5 8 Removing the Controller Card 7 Insert the new controller card 8 Lock the new controller card by pushing in the latch handles 9 Insert the fiber optic cable and MIA back into the FC AL connector 10 Insert the Ethernet cable into the 10BASE T connector 11 Check the controller status LED to determine when the controller is operational While...

Страница 120: ...liminated all possibility of a FRU component failure and the problem still remains it is likely to be a centerplane failure If there is a centerplane failure contact your Sun service representative Only trained qualified service providers should replace a disk tray chassis and centerplane 5 3 Upgrading Firmware The firmware upgrade procedures that follow must be done through the Ethernet connectio...

Страница 121: ...TP sessions to the Sun StorEdge T3 disk tray Halt all disk tray activity no I Os running from the host and keep activity through the one remaining telnet session to a minimum Also be sure the system is in an optimal state before starting the upgrade by verifying the system controller states Use the port listmap command to verify that no failover conditions have occurred Use the vol stat command to...

Страница 122: ...on the host to the directory on the disk tray 5 Type quit to exit the ftp session mngt_host 15 ftp 129 150 47 101 Connected to 129 150 47 101 Escape character is 220 129 150 47 101 pSOSystem NUPPC 2 0 0 G ready Name 129 146 81 201 root Name 129 146 81 201 root root 331 Password required for root Password password 230 User root logged in ftp ftp binary ftp put firmware 200 PORT command successful 1...

Страница 123: ...artner group you need to do this procedure only once for it to affect both units To upgrade the EPROM firmware 1 Start an FTP session from the management host to the disk tray For example 2 Log in to the disk tray by typing root and the root password at the prompts t300 2 boot i filename t300 3 reset mngt_host 15 ftp 129 150 47 101 Connected to 129 150 47 101 Escape character is 220 129 150 47 101...

Страница 124: ... to reboot the disk tray for the EPROM firmware to become effective However the release version number will not be updated in a fru list output until the disk tray is rebooted 5 3 3 Upgrading Interconnect Card Firmware The interconnect card firmware is stored in the FLASH memory device on the interconnect card The disk tray can be operational during the interconnect card firmware upgrade ftp binar...

Страница 125: ... Type quit to exit the ftp session mngt_host 15 ftp 129 150 47 101 Connected to 129 150 47 101 Escape character is 220 129 150 47 101 pSOSystem NUPPC 2 0 0 G ready Name 129 146 81 201 root Name 129 146 81 201 root root 331 Password required for root Password password 230 User root logged in ftp ftp binary ftp put firmware 200 PORT command successful 150 Binary data connection for filename 129 150 ...

Страница 126: ...ing during the download To avoid system problems Ensure that the data path to the host has been quiesced There must not be any I O activity during the disk drive firmware download Ensure that the Ethernet connection is not being used If Component Manager is being used it must be set to Disable Polling There is an option to select this setting Refer to the Sun StorEdge Component Manager User s Guid...

Страница 127: ...n the disk tray 5 Type quit to exit the ftp session mngt_host 15 ftp 129 150 47 101 Connected to 129 150 47 101 Escape character is 220 129 150 47 101 pSOSystem NUPPC 2 0 0 G ready Name 129 146 81 201 root Name 129 146 81 201 root root 331 Password required for root Password password 230 User root logged in ftp ftp binary ftp put firmware 200 PORT command successful 150 Binary data connection for ...

Страница 128: ...e disk command can download firmware for only one drive type at a time Verify that the download was successful using either the CLI or Component Manager Refer to the Sun StorEdge T3 Disk Tray Administrator s Guide or the Sun StorEdge Component Manager User s Guide for more information You do not have to reboot the disk tray for the disk drive firmware to become effective t300 2 disk download u1d1 ...

Страница 129: ...ntal Specifications on page A 2 Mechanical Specifications on page A 3 Cable Specifications on page A 3 Connectors on page A 4 A 1 Power Specifications TABLE A 1 Power Specifications Specification Rating Voltage and frequency 100 to 240 VAC 47 to 63 Hz Input current 5A max Input power 450W max Heat load 1540 BTUs hr max ...

Страница 130: ...ensing with maximum gradient 10 per hour 5 to 93 noncondensing with maximum gradient 10 per hour Effective altitude from drive specification 1 000 to 10 000 feet 305 to 3 048 meters 1 000 to 40 000 feet 305 to 12 192 meters Shock from drive specification 4g for maximum duration of 11 ms half sinewave 10g for maximum duration of 11 ms half sinewave Shock can be applied from any axis X Y Z Vibration...

Страница 131: ...ysical Specifications Height Width Depth Weight 5 25 inches 17 5 inches 18 5 inches 67 lbs 13 33 cm 44 45 cm 46 99 cm 30 39 kilograms TABLE A 3 Cable Specifications Cable Type Connector Maximum Length Host interface FC AL requires copper adapter DB 9 copper 25 meters Shielded Ethernet 10BASE T RJ45 100 meters RS 232 COM RJ11 6 25 meters Power 110V Standard n a Power 220V Standard n a Disk tray int...

Страница 132: ...2 connectors A 5 1 10BASE T Connector The controller card has a 10BASE T connector RJ45 A shielded twisted pair Ethernet cable is used to connect the controller server to the site s network hub for administration of the disk tray FIGURE A 1 10BASE T Connector Pin Function 1 TD 2 TD 3 RD 4 Reserved 5 Reserved 6 RD 7 Reserved 8 Reserved 1 2 3 4 5 6 7 8 10BASE T ...

Страница 133: ...or computer serial port with terminal emulation Note The serial port is reserved for special service procedures that can be performed only by qualified trained service personnel Do not attempt to perform any procedures through the serial port or you risk damaging the disk tray configuration and data FIGURE A 2 RS 232 Serial Port Connector RJ11 6 Pin Function 1 GND 2 Reserved 3 Reserved 4 GND 5 RXD...

Страница 134: ...A 6 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 ...

Страница 135: ...n service representative page B 2 Controller card F375 0084 page B 2 Interconnect card F375 0085 page B 2 Power and cooling unit F300 1454 page B 3 Interconnect cable 14 in 36 cm 24 in 61 cm F530 2842 F530 2843 page B 3 Power cord F180 1918 page B 3 5m fiber optic cable F537 1020 page B 3 Media interface adapter MIA F370 3989 page B 3 Front panel F540 4306 page B 4 Empty Sun StorEdge T3 disk tray ...

Страница 136: ...B 2 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 FIGURE B 1 Disk Drive in Canister FIGURE B 2 Controller Card FIGURE B 3 Interconnect Card ...

Страница 137: ...Appendix B Illustrated Parts B 3 FIGURE B 4 Power and Cooling Unit FIGURE B 5 Cables and Cords FIGURE B 6 Media Interface Adapter MIA Interconnect cable Power cord Fiber optic cable ...

Страница 138: ...B 4 Sun StorEdge T3 Disk Tray Installation Operation and Service Manual July 2000 FIGURE B 7 Front Panel Front panel ...

Страница 139: ...A mechanism that reroutes data to the other disk tray controller in a partner group upon failure in the host data path Alternate pathing requires special software to perform this function auto cache mode The default cache mode for the Sun StorEdge T3 disk tray In a fully redundant configuration cache is set to write behind mode In a nonredundant configuration cache is set to write through Read cac...

Страница 140: ...ead only memory EPROM Memory stored on the controller card useful for stable storage for long periods without electricity while still allowing reprogramming expansion unit A Sun StorEdge T3 disk tray without a controller card It must be connected to a controller unit to be operational F Fibre Channel Arbitrated Loop FC AL A 100 MB s serial channel which allows connection of multiple devices disk d...

Страница 141: ...ed while the system remains powered on and operational I input output operations per second IOPS A performance measurement of the transaction rate interconnect cable An FC AL cable with a unique switched loop architecture that is used to interconnect multiple Sun StorEdge T3 disk trays interconnect card A disk tray component that contains the interface circuitry and two connectors for interconnect...

Страница 142: ...ional information stored with data on a disk that enables the controller to rebuild data after a drive failure partner group A pair of interconnected controller units Expansion units interconnected to the pair of controller units can also be part of the partner group power and cooling unit A FRU component in the Sun StorEdge T3 disk tray It contains a power supply cooling fans and an integrated UP...

Страница 143: ...nous dynamic random access memory SDRAM A form of dynamic random access memory DRAM that can run at higher clock speeds than conventional DRAM system area Located on the disk drive label the space that contains configuration data boot firmware and file system information U uninterruptable power source UPS A component within the power and cooling unit It supplies power from a battery in the case of...

Страница 144: ...W world wide number WWN Number used to identify disk tray volumes in both the disk tray system and Solaris environment write caching Data used to build up stripes of data eliminating the read modify write overhead Write caching improves performance for applications that are writing to disk ...

Страница 145: ...ty per unit 1 3 centerplane service 5 16 changing the default configuration 2 40 channel connection failures 4 9 chassis service 5 16 Component Manager 3 9 4 2 installing 2 33 components 1 4 controller card description 1 5 disk drive description 1 4 interconnect card description 1 7 power and cooling unit description 1 8 configurations supported 1 10 connecting the cables 2 17 2 23 10BASE T cable ...

Страница 146: ...umbers B 1 firmware controller 2 28 disk drive 2 28 EPROM 2 28 interconnect card 2 28 upgrading 5 16 controller 5 17 disk drive 5 22 EPROM 5 19 interconnect card 5 20 front panel 2 4 illustrated B 4 removing and replacing 5 4 FRU failures 4 9 FRU part numbers B 1 H host generated messages 4 1 I illustrated parts B 1 to B 4 inspecting the disk tray 2 3 installation 2 1 2 45 alternate pathing 2 43 c...

Страница 147: ...ability and redundancy 1 3 removing disk tray caution 2 16 front panel 2 3 removing and replacing controller card 5 14 disk drives 5 3 front panel 5 4 interconnect card 5 12 power and cooling unit 5 8 UPS battery see power and cooling unit root password 2 26 RS 232 serial port connector specifications A 5 S Safety Agency Compliance statements English vii French x German viii Spanish xi scalability...

Страница 148: ...ring on 2 24 servicing 5 1 to 5 24 specifications A 1 supported configurations 1 10 troubleshooting 4 1 verifying the firmware level 2 28 syslog files 3 10 system area 1 9 T telnet session 2 25 troubleshooting 4 1 to 4 9 analyzing the problem 4 1 channel connection failures 4 9 FRU failures 4 9 telnet sessions 4 2 typographic conventions xxiii U unit volume configuration options 3 3 unpacking the ...

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