Manuale d’uso / di manutenzione del prodotto DS-16B2 del fabbricante EMC
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EMC Enterprise Storage EMC Corporation 171 South Street, Hopkinton, M A 01748-9103 Corpor ate Headquar ters : (508) 435 -1000, (80 0) 424-EMC2 Fax : (508) 435-5374 Service : (800) SVC-4EMC Departm ental Switch Model DS-16B 2 Fabric OS Version 3.
Departmenta l Sw itch DS-16B 2 Fabric OS Procedures M anual ii Copyright © 2001 EMC Corporation. All rights reser ved. Printe d Septe mber, 2001 EMC bel ieves the information in this pu blication is accura te as of it s publica tion date. Th e informa tion is subje ct to chan ge witho ut not ice.
Depar tm enta l Sw itc h D S-1 6B2 Fa bri c OS Pr oce dur es M anu al iii Operat ion of this equipment in a residentia l area may cause int erference in w hich case the user at his own e xpense will be require d to take what ever mea sures may be required t o correct the interfe rence.
Departmenta l Sw itch DS-16B 2 Fabric OS Procedures M anual iv.
Depar tm enta l Sw itc h D S-1 6B2 Fa bri c OS Pr oce dur es M anu al v Preface ....................... ................ ............ ................. ........... ................. ........... ............... vii Chapter 1 Setting t he Initial Switch C onfiguration Logging In to a Switch .
Departmenta l Switch Model DS-16B2 Fab ric OS Procedures Ma nual vi Contents Displaying Help Information for a T elnet Command .............. 2-1 1 Reading Hexadecimal Port Diagra ms . ............ ................. .......... 2-12 Chapter 3 Displaying Er ror Logs and St atus Displaying the Status of a Port .
Depar tm enta l Sw itc h D S-1 6B2 Fa bric OS Pr oced ures Ma nual vii Preface The Departmental Swit ch Model DS-16B2 Fabric OS Procedures Manual provides pr ocedures for many of the basic tasks of adm inistrating and configurin g a DS-16 B2 switch through the T elnet interface.
viii Departmenta l Sw itch DS-16B 2 Fabric OS Pro cedures M anual Preface ◆ Chapter 3, Displaying Error Lo gs and Status , provides instructions for displaying po rt and swi tch status inf ormatio n.
Dep art ment al S witch D S-16B2 Fab ric OS Pr ocedu res Man ual ix Preface WARNING A warning contains informa tion essential to avoid a h azard that can cause severe personal injury , death, or subst antial property damage if you ignor e the warning.
x Departmenta l Sw itch DS-16B 2 Fabric OS Pro cedures M anual Preface Where to Get H elp Obtain techn ical support by callin g your local sales o ffice. For service, call: and as k for Custo mer S uppo rt. If you ar e located outside the USA, call the near est EMC off ice for technical assistance.
Setting the Initial Switch Configur ation 1-1 1 Invisible Body T ag The Departmental Switch Model DS-16B2 requir es a connection to your IP network. Thi s chapter provides informatio n on h ow to set up initial con figuration ta sks for a switch. ◆ Logging In to a Switch.
1 1-2 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Setting the Initial Switch Configuration Logging In to a Switch The switc h must be con nected to an IP netw ork through th e RJ-45 po rt to enab le a conn ection th rough T elnet.
1 Enabling Licensed Features 1-3 Setting the Initial Switch Configuration Enabling Licensed Fe atures Licensed featur es such as Departme ntal Switch DS-16B2 Fabric W a tch , Depar tment al Swi tch D .
1 1-4 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Setting the Initial Switch Configuration Displaying the Installed Featur e Licenses T o display what features have been enabled on a switch: 1. Log in to the switch as the admin us er .
1 Configu ring the IP Add ress 1-5 Setting the Initial Switch Configuration Configuring the IP Addr ess The Depart mental Swi tch DS-16B2 switch is shipped with a defaul t IP address of 10.77.77.77. T o change the default IP Address and configur e the Fibre Channel IP address of the switch: 1.
1 1-6 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Setting the Initial Switch Configuration Displaying the Fabric-Wide Device Count T o verify that you have fabric-wide co nnectivity when you install a new switch, display th e fabric-wide device count from the newly installed sw itch.
Basic Sw itch C onfigur ation Procedures 2-1 2 Invisible Body T ag This chapter provides the foll owing inform ation on basic configuratio n tasks for De partment al Switch Mod el DS-16B2 switch. ◆ Setting the T elnet T imeout V alue ...............
2 2-2 Departmenta l Switch D S-16B2 Fabric OS Pro cedures Ma nual Basic Switch Configuration Procedures Setting the T elnet Timeout V alue T o set a new T elnet timeout value: 1.
2 Setting the Switch Da te and T ime 2-3 Basic Swi tch Configur ation Pr ocedures Setting the Switch Date and Time All switches ma intain current date and time in n onvolatile memo ry .
2 2-4 Departmenta l Switch D S-16B2 Fabric OS Pro cedures Ma nual Basic Switch Configuration Procedures Displaying the System Configuratio n Settings T o display the system configuration settings: 1.
2 Restorin g the Syst em Config uration Setti ngs 2-5 Basic Swi tch Configur ation Pr ocedures Restoring the Syste m Configuration Settings T o restore the system configuration sett ings from a backup: 1. V erify that the RSHD service (on UNIX hosts only) or the F TP service ( on a UNIX or W indow s host) is running on the ho st workstat ion.
2 2-6 Departmenta l Switch D S-16B2 Fabric OS Pro cedures Ma nual Basic Switch Configuration Procedures Upgrading or R estoring the Switch Firmwar e T o upgrade or restore the switch firmware: 1. V erify that the RSHD service/utilities or the F TP s ervice is running on the host workstatio n.
2 Enabling a Switch 2-7 Basic Swi tch Configur ation Pr ocedures Enabling a Switch T o enable a switch: 1. Log in to the switch as the admin us er . 2. At the command line, en ter the following command: switchEnable All Fib re Cha nnel ports th at passed the POST test a re en abled.
2 2-8 Departmenta l Switch D S-16B2 Fabric OS Pro cedures Ma nual Basic Switch Configuration Procedures Changing a Switch Name T o change the name of a switch: 1. Log in to the switch as the admin us er . 2. At the command line, en ter the following command: switchName "new_name" where new_name is the new name for the switch.
2 Setting the Switc h Status Policy 2-9 Basic Swi tch Configur ation Pr ocedures Setting the Switch Status Policy There are s even parameters that determine the status of a switch: ◆ Number of faulty ports ◆ Missing GBICs (i.
2 2-10 Departmenta l Sw itch DS-16B 2 Fabric OS Pro cedures M anual Basic Switch Configuration Procedures Enabling the T rack Changes Feature T o enable the track changes feature: 1.
2 Configuring a S tatic Route Between Two Ports 2-11 Basic Swi tch Configur ation Pr ocedures Configuring a Static Route Between T wo Ports T o configure a static rout e between two ports: 1.
2 2-12 Departmenta l Sw itch DS-16B 2 Fabric OS Pro cedures M anual Basic Switch Configuration Procedures Reading Hexadecimal Port Diagrams Many of the commands return port diagrams in hexadecimal format.
2 Reading Hexa deci mal Por t Diagr ams 2-13 Basic Swi tch Configur ation Pr ocedures Once the hexadecimal is converted into a binary bit map, each bit repr esents a port, where a va lue of 1 means yes and a value of 0 means no . The bit map is read from right to left, that is, the least significant bi t represents port 0.
2 2-14 Departmenta l Sw itch DS-16B 2 Fabric OS Pro cedures M anual Basic Switch Configuration Procedures.
Displaying Error Logs and Status 3-1 3 Invisible Body T ag This chapter provides the foll owing inf ormation on displaying po rt and swi tch status informa tion: ◆ Displaying the Status of a Port .............. ........... ................. ........
3 3-2 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Displaying Err or Logs and Status Displaying the Status of a Port There are two types of statis tics you can view for a port: ◆.
3 Displaying a Summ ary of Por t Errors 3-3 Displaying Err or Logs and Status Display ing a Summ ary of P ort Err ors This command displays a sum mary of port errors for all the ports in a single switch . T o display a summary of port errors for a switch: 1.
3 3-4 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Displaying Err or Logs and Status For m ore inf orma tio n on th e portErrShow command , r efer to th e Departmental Switch Model DS -16B2 Fabr ic OS R efer ence Ma nual.
3 Displayin g Infor mati on About a Sw itch 3-5 Displaying Err or Logs and Status Displaying Information About a Switch T o display switch information: 1.
3 3-6 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Displaying Err or Logs and Status Displaying the Uptime of the Switch T o display the uptime for a switch: 1.
3 Display ing Pow er Sup ply Status 3-7 Displaying Err or Logs and Status Displaying Power S upply Status T o display the power supply status of a switch: 1.
3 3-8 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Displaying Err or Logs and Status Displaying the T emperature Status T o display the temperature status of a switch: 1.
3 supportSh ow 3-9 Displaying Err or Logs and Status Syntax supportShow [firstPort, lastPort, nLog ] Desc ript ion Th is comm and is avail able to all u sers. It h as the ef fect of running each of the following commands one after the other in the following order: 1.
3 3-10 Departmenta l Switch Model DS-16B2 Fab ric OS Procedures Ma nual Displaying Err or Logs and Status Operands This command has the f ollowing operands: firstPort Specify the first port, of a ran ge of ports, to dump information. The d efault (if no op erand specified) is to print state of port 0.
Customer Suppo rt A-1 A nvisible Body T ag This appendix reviews the EM C process for detecting and resolving software problems, and provides essenti al question s that you sh ould answer before contacting the EMC Customer Support Center . This appendix covers th e following to pics: ◆ Overview of Detecting and Resolving Pro blems .
A A-2 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Customer Support Overview of Detecting and Resolving Prob lems EMC software pr oducts are supported di rectly by the EM C Customer Support Center in the United States . EMC uses th e following process to resolve customer problems wit h its software products (Figure A-1).
A Troubleshooting the Problem A-3 Custom er Supp ort T roublesh ooting the Pr oblem Please perform the r elevant diagnostic steps before yo u contact the EMC Customer Support Center: 1. Rea d t he doc ume nt atio n ca reful ly . 2. Reconstruct the events lead ing up to the problem and describe them in writin g.
A A-4 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Customer Support Before Calling the Customer Support Cente r Have the follo wing informatio n available bef ore calling the Cus t.
A Docum enting the Problem A-5 Custom er Supp ort Documenting the Pr oblem If the EMC Customer S upport Center requ ests information regar ding the problem, please document it com pletely , making sur.
A A-6 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Customer Support Reporting a New Pr oblem For a new problem, please provide the following i nformation: ❑ Release level of the .
A Sendin g Problem Docu mentatio n A-7 Custom er Supp ort Sending Problem Documentation Use on e of the fo llowi ng metho ds to sen d doc umenta tion o f the problem to the EMC Cus tomer Support Center: ◆ E-mail ◆ FT P ◆ U.
A A-8 Departmenta l Switch Model DS-16B 2 Fabric OS Proced ures Manual Customer Support.
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-1 Glossary The terms in the glo ssary relate to the sw itch and Fibre Channel connections. Many of these terms ar e used in this manual. A 8b/10b En coding An encoding s cheme that con verts each 8 bit byte in to 10 bits .
g-2 De partmental Switc h Model DS-16B2 Fab ric OS Proced ures Manual Glossa ry API Application Programming In terface; a defined protocol that allo ws applications to interface with a set of services. Arbitrated Loop A s hared 1 00 MBps Fibre Chan nel t ransp ort stru ctured as a l oop .
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-3 Glos sary Buf fer- to- Buf fer Flow Control Management of the frame transmission rate in either a point to point topology o r in an arbitrated loop. S ee also BB_Cr edit . C Cascade T w o o r more in terc on nec ted F ibre Ch ann el sw it che s.
g-4 De partmental Switc h Model DS-16B2 Fab ric OS Proced ures Manual Glossa ry CRC Cyclic Redundancy Check; a check for trans mission errors included in every data frame. Credit As applies to Fibr e Channel, the number of receive buf fers available for transmission of frame s between ports.
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-5 Glos sary EE_Cr edit En d to end Credit; th e number of r eceive buffers allocated by a recipient port to an originating port. Used by Class 1 and 2 services to manage the exchange of frames acr oss the fabric between source an d destinat ion.
g-6 De partmental Switc h Model DS-16B2 Fab ric OS Proced ures Manual Glossa ry FC-FLA The Fibre Channel Fabric Loop Attach standa rd defined by ANSI. FCP Fibre Channel Proto col; mapp ing of p rotocols onto the Fibre Channel standar d protocols. For example, SCSI FCP maps SCSI-3 onto Fibr e Channel.
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-7 Glos sary FS Fibre Channel Service; a service that is defined by F ibre Channel standar ds and exists at a well known a ddress. For exam ple, the Simple Name Server is a Fibr e Channel service.
g-8 De partmental Switc h Model DS-16B2 Fab ric OS Proced ures Manual Glossa ry Hub A Fibre Channel wiring concentra tor that colla pses a loop topo logy into a phys ical star topo logy . Nod es are automatical ly added to the loop when active and r emoved when inactive.
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-9 Glos sary L L_Port Lo op Port; a no de port (NL_Port) or fabric port (F L_Port) that has arbitrated lo op capabilities. An L_Port can be in one of two modes: • Fabric mode-Connected to a port that is not loop capable, and using fabric protocol.
g-10 Departmenta l Switch Model DS-16B2 Fab ric OS Procedures Ma nual Glossa ry LW L Long W avelength; a type of fiber opti c cabling that is based on 1300mm lasers and supports link speeds of 1.0625 Gb ps. May also refer to the type of GBIC or SFP . See also SW L .
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-11 Glos sary Nonparticipating Mode A mode in which an L_Po rt in a loop is inactive and cannot arbitrate or send frames, but can retransm it any received transmis sions. This mode is enter ed if ther e are more than 12 7 devices in a loop and an AL_P A cannot be acquir ed.
g-12 Departmenta l Switch Model DS-16B2 Fab ric OS Procedures Ma nual Glossa ry Port_Name The unique identifier ass igned to a Fibre Channel port. Communicated during lo gin and port discovery . POST Power On Self T est ; a series of tests ru n by a switch aft er it is turned on.
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-13 Glos sary RAI D Redundant Array of Independent Disks; a collecti on of disk dr ives that appear as a single volu me to the server and are fault tolerant through mirr o ring or parity checking.
g-14 Departmenta l Switch Model DS-16B2 Fab ric OS Procedures Ma nual Glossa ry SNMP Simple N etwork Mana geme nt P rotocol. A n inte rne t mana gemen t protocol that uses either IP for network level functions and UDP for transport level function s, or TCP/IP for both.
Depa rtmental Sw itch Mod el DS-16 B2 Fabric OS Procedure s Manua l g-15 Glos sary T ranslative Mode A mode in which private d evices can commu nicate with public devices acr oss the fabric. T ransmission Character A 10 bit character encoded according to the rules of the 8B/10B algori thm .
g-16 Departmenta l Switch Model DS-16B2 Fab ric OS Procedures Ma nual Glossa ry Wo r k s t a t i o n A computer used to access and m anage the fabric. May also be referr ed to as a management station or host. WWN W orld W ide Name; an identifier that i s unique worldwide.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il EMC DS-16B2 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del EMC DS-16B2 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso EMC DS-16B2 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul EMC DS-16B2 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il EMC DS-16B2, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del EMC DS-16B2.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il EMC DS-16B2. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo EMC DS-16B2 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
