Manuale d’uso / di manutenzione del prodotto AHA-1740A del fabbricante Adaptec
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AHA-1 740A/17 4 2 A/1744 EISA-to-Fast SCS I Hos t A dapter Use r’s Manual.
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AHA-1740A/17 42A/174 4 EISA-to-Fast SCSI Host Adapter User’s M anua l.
Copyrig h t © Copyright 1992 Adaptec, I nc. All rights reserv ed. No part of th is publi cation m ay b e reproduce d, store d in a retrieval system, or transmitted in any form or by any means; elec tronic, m echa nica l, photo copy i ng, reco rdi ng or o therwise, without the prior written con sent of Adap tec, Inc.
Technic al Sup port There are sev eral ways to get te chni cal ass ista n ce for your Adaptec pr oduct(s). Each is described below. When re q uestin g ass i stanc e, b e sure that you have the fo llowing i tems available (or if you write or FAX, send them along): • the mode l of any Adaptec hardware product(s) yo u have.
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Table of Contents Prefac e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Co n v en ti o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x Chapter One Overv ie w G en er a l Pr od uc t In f o r m a ti o n .
Standar d M ode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3 Enable P arity Chec k ing . . . . . . . . . . . . . . . . . . . . . . 3-1 3 Initiate Synch N egotiation . . . . . . . . . . . . . . . . . . . . 3-14 Enable Disc on ne ction .
Chapter Seven Troubleshooting Deter minin g Pro blems Using the LED . . . . . . . . . . . . . . . 7-1 Problems Detected During Installation . . . . . . . . . . . . . . 7-2 Problems Bootin g the System f rom a SCSI Driv e . . . . . . 7-4 Problems Using a SCSI a nd a Standard Disk Driv e .
List of Figures Figur e 2-1. SCSI Device T ermin ation . . . . . . . . . . . . . . . . . . 2-3 Figure 3-1. S ystem Configur ation Over view . . . . . . . . . . . . . 3-2 Figure 3-2. System Conf iguration Detailed View . . . . . . . . . 3-3 Figur e 3-3.
Pref ace This User Gu ide pr ovides inf orm ation relating to the oper ation of th e Adaptec AHA-1740A/1742A/ 1744 EISA-to-Fast SCSI Host Adapter in an EISA (Extende d Ind ustr y St andar d Ar chi- tectur e) system. Cha pte r On e , O ver vie w , prov ides gene ral infor mation a nd a list of files provided for conf iguration .
Conve ntions The follow in g ty pog raph ic c on vention s are u sed thr ou ghou t this Ins ta llation Guid e . bo ld Used for keystrok es (.. p ress the En ter k ey ..) and sc reen selec- tion fie lds (.. selec t Backup Device and ..). Helvetica Used for oper ator e ntr y that must be typed ex ac tly as shown ( .
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Printed in Singa pore STO CK NO.: 5 10215-00 Rev B LL 8/ 93 691 south m ilpitas blvd. • milpitas, ca 95035 • (408)945-8600.
Chapter One Ov erview This U ser Gu id e provides softwar e installation information for the Adaptec AHA-1740A, 1742A, and the 1744 EISA-to-fast-SCSI bus mast er host adapters. Cumulatively the cards are referred to as AHA-1740A/1742A/ 1744 in this gu ide.
The AHA-1740A/1742A/1744 sup port s async hro nous, synchro- nou s, and Fast SCSI da ta transfer s on the SCSI bus. Asynch ro- nou s data tr ansf ers sup p o rt up t o 2 MBytes/sec , sy nchr onous transfer s suppo rt up to 5 MBy tes/sec , and Fast syn chr onou s trans- fer s suppo rt up to 10 MBy tes/sec .
The AHA-1744 microco de is stored i n an EEPROM. This allows the micr oc ode to be ch anged with the Adapte c adl.exe progr am. Th e adl .exe program c an also be used to determin e the ch ecksu m of the cu rrently installed micr ocode and low-lev el for mat SCSI fixed disks.
Insta llat ion S oft ware Software requir ed to ins tall the AHA-1740A/1742A/ 1744, in a n EISA system, is provided in the ASW-C174 softwar e packag e. The files con sist o f : Fi le Name File D e scriptio n !a dp00 00.cfg EI SA configu ration fi le for the AHA-1 740A/1 742A/1 74 4 !a dp0001 .
BIOS Operat ion Mode s The AHA-1740A/1742A/1744 h as two modes of opera tion: stand- ard mo de and enhan c ed mo de. Th e stan dard mo de i s software compatible with t he AHA-1540 ser ies host adapter drivers. T he enh anc ed mode uses an advanc ed, high p e rfor mance mailbox interf ace and feature s f ull EISA 32-bit addres si ng .
System Cac hing Descript ion The AHA-1740A/1742A/1744 fully suppor ts operating systems cach in g to maximize overall system per for man ce. Havin g RAM on the host adapter can actu ally dec rease ov er all system perfo rm- ance while addin g c ost .
Product Specific at ions The followin g table lists some o f the physic al produc t descr iptions relating to the AHA-1740A/ 1742A/1744 Host Ad apter s. Phys i cal D imensions Length 13-3/8 inches Width 5/8 inch Height 5 inches Standard EISA-compati ble form fa ctor Power Requir ements + 5.
As sociat ed Documenta tio n The follow ing do c umen tation is also available f o r th e AHA-1740A/1742A/ 1744: • I nst alla ti o n G u i d e This in cludes basic installation infor mation in this boo k - let. T he d ownlo ad utility adl.exe is also describe d.
Chapter Two Hardware Ins tallatio n Unp ac king a nd I n spect ion The carr ier is respon sible for damage incur red durin g shipmen t. In case of damag e, have the car r ier note the damage on both t.
Prep arat ion The configuration o ptions for the AHA-1740A/1742A/1744 can be selected fr om softwar e. Ther efor e, jumper s do not need to be checked before installing the AHA-1740A/1742A/1744 into the EISA sys t em. One exception is the AHA-1742A, sinc e it con tains an on-boar d floppy con tro ller.
SCSI Terminato rs The SCSI bus must be terminated co rrec tly to e nsur e proper op- eration . Only the first and last device on the SCSI bus (cable ) should have the t ermin atin g resistors installed. All other SCSI devic es shou ld have the termin a ting resistor s removed.
The RN5, RN6 and RN7 termin ators on t he AHA-1740A/1742A are 150 ohm termin ator s. The RN2, RN4, and RN5 terminator s on the AHA-1744 are 330 ohm terminator s.
Ph ysical Insta llat ion in t he S ystem The follow ing steps shou ld be follow ed to install the AHA-1740A/1742A/ 1744 into the s ystem: 1. Tur n OFF the power to the comp uter system. 2. Remove the system cover accor din g to the dir ec tions of the c omputer manu factur er.
6. The 50-pin SCSI ribbon cable can now be attached to each SCSI device. Refer to the device’s installation instru c- tions to ensu re pro per p in 1 orie ntation . Pin 1 orie ntation must be consistent t hroughout the system. K eep t he rib- bon cable neatly dr essed away from the ventilation slots in the computer system.
Chapter Four Multiple Host Adapter Support The AHA-1740A/1742A/1744 sup port s more than one host adapter in the system. T he max imum n umber of h ost adapters suppor ted depe nd s o n the operatin g mode of t he host adapter .
Stand ard and Enhanced Modes In gener al, the host ad apter SCSI I D doe s not need to be ch anged from the default of 7. Even if t wo host adapters are installed i n the same co mpu ter, each wo uld hav e its own SCSI bus (cable), and th us each host adap te r w o uld still be set to SC S I ID 7.
Chapter Five Adaptec D ownlo ad Utility The Adaptec Down load utility (ADL ) is used to download a differ - ent v ersion of the mic rocode software to the AH A-1744. T his chap t er desc ribes the o pe ration of t he pro gram which affec t s on ly the AHA-1744; the AHA-1740A/1742A do not suppor t micr ocode repr og ramming .
Also ensu re that the follow in g mic roco de files are presen t. • standard.hex Standar d mode micro code • enhanced.hex Enhan c ed mode mic ro code To run the progr am, type adl .
The installed host adapters are displayed. In this e xample , one AHA-1744 is installed in slot 3. It is curre ntly set t o e nh ance d mode. Both standar d mode and enh an ced mode fir mwar e can be downloade d, regard less of th e current operation mode of the AHA-1744.
Download Firmware After sele cting D own lo a d Fir mw a re , the next s creen display s. Ente r the filename of th e microc ode tha t you a re g oing to do wn- load to the host adapter. Enter standard. hex for standar d mode an d enhanced.hex for enhan c ed mode .
After e nterin g the f ilename, press th e Esc k e y. T he ne xt s cre e n displays. The chec k sum of the micro co de is displayed, wh ic h uniqu ely iden - tifies the microc od e. Select Y to contin ue with the downlo ad, or N to stop. The down load can take up to 45 seconds to complete.
Firm ware I nformati on This menu option is used to di splay infor mation on the installed firmw are. If the AH A-1740A/ 1742A1744 is operating in the stand - ard mo de, only info rmation on the standar d mode firmwar e is dis- played.
Low- Level F orma t This optio n is used to low-le vel format, verify , or erase the boot sector of att ach ed SCSI f ixed disks o n the AHA-1740A/1742A/ 1744. When selected , all attached SCSI device s are d isplaye d. Select a devic e and press the En te r key.
Th e Low- Lev el Fo rma t Opt ion s sc reen displays. Selecting Fo rmat/Ver ify ca uses th e AHA-1740A/ 1742A/1744 t o send a SCSI F ormat Unit comman d to the selec ted di sk driv e whic h per forms a low-lev el for mat of t he di sk.
Exiting the ADL Program To ex it the adl prog ram, p re ss the Es c key a nd the following scree n displays. Select Yes to exi t . ❐ Fi gure 5-8. Ex itin g the AD L Prog ra m EISA -t o-Fast SC SI Ho.
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Chapter Six Host Adapter BI OS Operation The AHA-1740A/1742A/1744 BIO S oper ates in two modes: s t and- ard and enh anced . The mode of operation is selected wi th t he use of the EISA Configur ation utility sup plied wi th y ou EISA com- puter s ystem.
The BIOS version and operation mode of the AHA- 1740A/1742A/1744 appear at t he top of t he message, followed b y a list of the identified SCSI devices. In the e xample show n, a SCSI f ixed disk was found at SCSI I D 0 and in stalled a s drive C . No S CSI fi xed disks were fou nd at SCSI ID 1.
Enha nced M ode Ope ration The enhanc ed mode opera t ion enables the adapter BIOS to iden- tify all installed fixed disks with a valid SCSI I D. All SCSI I Ds with the BIOS suppor t option enabled , using the EISA Configuration utility, are s can ned.
If Erro r if Device Not Found is enable d, throug h the EISA Con- figu ration utility , then you will see a screen similar to the one shown below : By de faul t , remo vable media disk d riv es are not in st alled by t he adapter BIO S.
Chapter Seven Troubleshooting The AHA-1740A/1742A/1744 execu tes a self-test diagnostics whe n the s ystem power is t urn ed on or after a Hard Reset. The self-test diagn ostics tests t he CPU operation , per fo rms a c hec k- sum test on the EPROM an d chec ks the data tran sfer paths on the host adapter.
The follow in g table lists the LED flash cod es with the associ ated failur e description s. Flash Code Fai lure Description LED Remains On Host Adapter Control Pro cessor f ailu re. Termi nators inope rative, missing or not powered-on or the card enabl e h as not been asserted after reset.
• LED on host adapter after powe r-on - The LED o n the AHA-1740A/1742A/ 1744 shou ld come on briefly after turn- in g the sys te m powe r on . The LED shou ld tur n off when a reque st is sent to the host adapter .
Problems Booting the System f rom a SC SI Drive • Make sur e that both s tandar d fixed disks are mapped ou t of the sy stem . • Make sur e that the SCSI boot driv e addre ss is set to SCSI ID 0:0. Check the drive ins tallation manual for i nfo rma- tion about setting the SCSI ID for that device.
• Make sur e that the SC SI driv e to be used as drive D is se t to SCSI ID 0:0. Chec k the drive manu al for information on setting the SCSI ID for that d evic e. The Retur n In- stalled Devices utility i n the Onboard utilities can also be used to determin e the SCSI addr es ses of peripher als on the SCSI bus.
• Pow er shou ld be cyc led O FF and ON afte r chan gin g an y valu es on a h ost adapter, setup prog ram, or SC SI devic e to be sure that the new initial values are loaded. • Make sur e that SCSI parity is con si stently enabled or dis- abled on all devices on the SCSI bus.
Appendix A Disk Driv es Over 1 Gigabyte Exte nded Tra nsla tion (Using DOS 5 ) Adaptec ho st adapters hav e alway s suppor ted the full rang e of disk driv e sizes u nde r all major oper ating systems. As disk drive s have rec en tly gro wn bey ond 1 Gigaby te in formatted cap acity , they have run up again s t the DOS 1024 cy lin der limit.
When t o Use E xt ende d Tran slatio n With DOS Version 5 Only NetWare 38 6 and the newer ver sion s of UNIX do not share the 1024 cylin der limit of DOS and do n ot requ ir e exten de d tran sla- tion to supp ort large disk d riv es. O S/2 does not cu rr ently supp ort exten ded tran slation .
Using Fdisk To install a new disk, or to re-partition an existing disk, use the fdisk DO S utility as y ou nor mally wou ld. The cylin der size in- crea ses to 8 MBytes w hen you enable extended translat ion. The size of the partition you reque st must t heref or e be a multiple of 8 MBy tes.
Wh at if I use olde r ve rsi ons of softwa re dri ve rs wi th ex - t e nd e d t ran s lat io n en ab le d ? To pr otect your data, th e host ad apter will lock out a n y dr iver that does not identify itself as capable of exten ded tran slation.
Appendix B Loading the I/O Ope rating Env ironment S oftw are DOS/Window s Under DO S 5.0 or higher , up to seven SCSI fixe d disk drives can be connected to the 1740A/1742A/ 1744 witho ut additional soft- ware . (Olde r versions of DOS suppo rt up to t wo disk driv es).
Nov ell Ne tWare NetWare 4.x inclu des the Adaptec I/O Ope ratin g Enviro nme nt and does not re quir e additional so ftwar e. To load software f or Novell NetWar e 286 2.x and 386 3.x follow the instruc tions included in the ASW-1440 softwar e packag e.
Gloss ary Adap ter Co mmand A comman d transmitted to the host adapter usi ng the Command Da ta Out P ort and the Data In Port. The command s are sequen ced using the Control Port, the S tatus Port, and t he Inter- rup t Flag Por t. Abbreviated as IOCP comman d.
ra te and ind epen de nce of ex ter nal timing constr aints, in clu din g cable le n gth and cir c uit respon se times. A sy nc h ron ou s Ev en t N ot if ica ti on A proce ss by which a target can se.
Commo n Co mmand Set A de facto s tandar d SC SI comman d set for commun ic ation with fixed disk dr iv es. The Common Command Set (CCS) is the basis for the SCSI-2 comman d set for all types of periph er al device s.
Rec onn ect is the f u nction tha t occ urs w hen a target s elec t s an ini tiator to con tinu e an opera tion after a discon ne ct. EEPRO M Electric ally -Er asable Programmable Read O nly Memor y. An inte- grated cir cuit used to store the hos t adapter fir mwar e, wh ic h allows both mode dow n load and fi rmw ar e upgr ade while in- circ ui t.
Ho st Ad ap t er A har dw are printed c ircu it board that installs in a standar d micro co mpu ter backplan e an d provid es a SCSI bus connection so that SCSI devices can be conn ec ted to the micr ocompu ter . A ho st adapter i s inte ll igen t if it has a simple hig h -lev el so ftwar e inte r- face to the microc omputer .
Ma ilbo x I n An area in main memory a ssigned by the host micr ocompu ter soft- ware f or commu ni cation w ith th e host adapter . Th e host ad apter places status and pointer inf orm ation in e ntr.
RAM Random Acc ess Memo ry. Memor y of wh ic h any byte can be acce ssed direc tly in a single memor y cy c le. Infor mation can be read fr om and written to the memory.
Sta nda rd Mo de The oper ation mode that allows softwar e written for the AHA- 1540/1640 family to be fully compatible with the AHA-1740A/ 1742A/1744. T h e limitation is that you cann ot select addresses beyo nd 16 MBytes or access several EISA register s.
Index A Active ter minator 1-2 Address prio rity 3 -8 ADL pr og ra m exit ing 5-9 adl.ex e 1-1, 1-3, 3-9, 5-1 AMI configur ation utility 3-1 ASW-C174 1-1, 1-4 ASW-M174 1-1, 1-4 B BIOS add ress selec t.
Dis k dri ves standar d 3-9 DMA See D irect M emory Acce ss DMA c han n el selec tio n 3-7 Dow nlo ad utility 1-4, 5- 1 See ad l.exe Dow nlo ad utility prog r am s 5-1 E EISA configu ra tion utility 1.
I I/O ports addresses 3-6 Ins t allation erro rs 7-3 IRQ sele ction 3-4 J Jumper s 1-3, 2-2, 2-4 L LED indic ation 7-1 Low-le vel formattin g 1-3, 3-9, 5-7 M MC S config uration utility 3-1 Micr ocod .
R Reliability information 1-7 Removable dr ives 3-16 S Scatter/gath e r 1-2 SCS I compatibilit y 1-2 termin ator s 2-3 SCSI bus reset 3-10 SCSI devi ce configuration 3-12 SC SI devic e identific ation.
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 Adaptec AHA-1740A 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 Adaptec AHA-1740A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Adaptec AHA-1740A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Adaptec AHA-1740A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Adaptec AHA-1740A, 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 Adaptec AHA-1740A.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Adaptec AHA-1740A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Adaptec AHA-1740A 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.
