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GA26-1619-4
F i l eN o . 5 3 7 0 - 0 7
Reference
Manualfor
Systems IBM 3340/3344 Disk Storage
IEnfi
PREFACE,
This publicatic,nis intended to familiarize rCata
proc- 3340/3344 Operator and Power Panels. Provides
essingpersonnellvith the characteristics IBM
ol' suggested instructions for data module unloading
3340/3344 Disk Storage. The reader should have and loading procedures and the EnableT'Disable
prior knowledge of direct-access storagedievices and Read Only Function.
concepts.
The following publications are recommendedfor
This publication is organized by topics as follows: detailed information concerning the subjectscovered
r I N T R O D T i C T I O N - D e s c r i b e s a s i c u n i r sa n d
b in this manual:
lists highlights and f'unctions.
c IBM System/370 Principles of Operatlon, Order
o CONFIGTJRATIONSand ATTACHVIENTS - No. GA22-7000.
Defines sornepossi'trle combinationsand svstem
c IBM 3348 Data Module Handling Procedures,
a t t a c h m e n t so r t h e 3 3 4 0 i 3 3 4 4 .
f
O r d e rN o . G A 2 6 - 1 6 2 5 .
o FEAT'URF,S- Describesboth standandand
o IBM ,1340 Disk Storage Fixed Head Feature
optional fe:rturesavailablefor the 334(l/3344 with
UsersGuide. Order No. GA26-1632.
illustrationsof some combinations.
c IBM Reference Manual for Integrated Storage
o FORMATS - Describesand illustratesthc record
and track Irtrnratsfor data. Also provided are Contol. Order No. GA26-1620.
Record,iT'rack capacity charts including formulas o IBM Reference Manual .f-or 3830 Model 2
for capacitll calculationsof various length records. StorageControl,Order No. GA26-1617.
o I N P U T / O L T T P U T - I n c l u d e sa d d r e s s i n g o The Data Processing Glossary, Order No. GC20-
m e t h o d s . a c c e s s i n t e s .a n d i d e n t i f i e ss e c u r i t ya n d
t | 699, defines terms related to direct-access
storage
p r i v a c y m e : a n s .L i s t s a n d s u m m a r i z e sh et devices.
3340/3341 command set and sensebyte formats.
o Thc functional characteristics
manual applicableto
A l s o i n c l u d e sa n e r r o r c o n d i t i o n t a b l e a n d t h e
{lrror recovery actions. thc parent system. C)rcler
numbers for functional
associated
characteristicsmanuals can be found in the IBM
o OPERAI lNG INSTRUCTIONS - Describes ll a .S.y.stem/ and System/ 370 Bihliography,
360
switchesanrdindicators associatedwith tht: Order No. GA22-6822.
Fifth Edition (July 1975)
'Ihis
p u b f i c a t i o n r c p l a c e s a r r d n r a k c s R e . l ' e r e n c e a n u u l { r : r l B l l [ - t- ] 4 0 D i s i
M
S t o r a s e ,O r d c r \ , r . G A 2 6 - 1 6 1 9 - 1 . o b s o l c t c .
S i g n i f i c a n t c h a t t g , : s r r a d d i l i o n s t o t h c s p e c i f i c a t i o n sc o n t a i n c d i n t h i s n u b l i e a r r g n
t
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r
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c o p i e s o f t h i s a r r d o t h e r [ 8 1 \ 1p u b l i c a t i o n s c a n b e o b t a i n e d t h r < i u s h l l ] f u l l l r a n c l r
C)ffices.
. A f o r m f o r r e a d c r ' sr o m m c l l t s i s p r o v i < 1 e d t t h c b a c k o f l l i i s n u b l i c a l i o n , l f t h r :
a
f o r n r h a s b e e n r e n t o v c d . s e n d v o u r c ( ) n t i n e n t : t, o t h e a d c l r e s s , : l o w .
h
'fhis
nranualwas preparedby thc IBM Gc'cral Pr'duc1s [)ivision. Craphics and
P u b l i s h i n g . D e p a r t m c n t G 2 6 . S a n . , I o s eC l a i i f o r n i a9 5 1 9 3 .
.
! : ' C o p y r i g h t l n t e r n a t i o n a l I l u s i n c s sM a c h i n e s C o r p o r a t i o n l g 7 j . 1 9 7 4 , 1 9 7 5 .
ii IBM 334014'1 ferencc
Re Manual
P a g co l ( i A 2 6 - 1 6 1 9 - , 1
R c v i s c dM a y 1 6 . l t ) 7 6
By'l NL: (;N26-012ti
CONTENTS
Introduction Access Motion Time . t6
I B M 3 : 1 4 0D i s k S t o r a g e Head SelectionTime l6
DataModule.... R o t a t i o n a lD e l a y . t1
'l'ransfer
Defect Skipping Data l1
IBM 3344-82ll]2F Disk Storage . . . . Data Security and Privacy . . 11
I B M 3 3 4 0 / 3 3 4 4U n i t s ReadOnly Function 11
3340/3344 Storage Clontrol and Features 3 FileProtection... 11
StorageControl Devices 3 S e e kV e r i f i c a t i o n . 11
S p e c i a lF e a t u r e s 3 ErrorRecoveryProcedure..". 18
StringSwitch.... 3 E r r o r C o r r e c t i o nF u n c t i o n . . . 18
Rotational Position Sensing 3 ltJ
Error ConditionTable
Fixed Heirds 3 E r r o r R e c o v e r yA c t i o n l8
Configurrations.... 4 C o n s t r u c t i o nR f s t a r t C C W s
oe ....... l8
3340 Stc,rage Without 3344 . 4
M o d e l iI l 5 ( 1 1 5 D D A ) A Channel Commands l.)
M o d e t 1 ' 2 5( 1 2 5 D D A ) 4 SenseCommancls . i-)
M o d e L1 3 - 5 I F A )
( 4 Control Commands _-)
M o c l e l s 3 5 . 1 4 5 . 1 5 5 - l l ,1 5 8 , 1 6 5 - l l ,
1 R c a dC o m m a n d s . J)
a n c l l 6 8 ( 3 8 3 0 - 2 )M o d e l s 1 4 5 , l 5 B . Write Commands . -:)
ancl168 (lSC) 4 S e a r c hC o m m a n d s i)
3340/3344 Configurations . . . .4
Sense Data l4
M o d e l l . 1 5( I F A ) 4 j'1
S e n s eB y t e S u n t m a r y
M o d e l 1 3 5 , 4 5 , 5 5 - t l1 5 8 , 6 5 - l l .
1 1 . 1
s ScnseBytesO-7Suntmary..., -15
a n r l1 6 8( 3 8 3 0 - 2 ) o d e l 1 4 5 ,1 5 8 ,
M s 3 3 4 0 S e n s eB y t e F o r m a t I S u m m a r y l(r
a n d1 6 8( l S C ) 3344 SenseByte Fornrat I Summary -lti
IBM 33418 Data Module . . . . 6 Formatsl, 4, and 5 Message ummary S 40
Data Mc,duleTypes 6 S e n s eB y t e F o r m a t 4 S u m m a r y 1l
DataMo'duhInitialization . . . 6 SenseByte Format 5 Summary 4)
SenseByte Format 6 Summary '+-3
D a t a S u r f a c cF o r m a t 6
Formats 8 Operating Instructions ,+4
Record Format 8 3340 OperatorPanel 44
Count Area 6 3 3 4 4 O p e r a t o rP a n e l 14
Key Area d 3340/3344 Power Panel .
Data Area 8 Machines Without String Switch Feature 4l
TrackFormat.... 8 M a c h i n e sW i t h S t r i n s S w i t c h F e a t u r e 4-\
Home Acldress d
Data Module Loading 46
Track Descriptor Record (R0) 8 Data Module Unloading 4()
DalaRecords.... 8 ReadOnly Function '+7
'frack
Capacity 9 Enable Read Only F-unction 1'1
Input/Output Operations lo D i s a b l eR e a d O n l y F u n c t i o n 1l
Device Selectionand Addressing . . . l6
l6 Index. 48
Device Address
S e e k A d c l r e s s. . . I O
Access and Data T'ransferSpeed . 16
C o n t en t s iti
[ ' a - e ct ' l C , ' \ ] r i - l ( r l 9 - . 1
Rt'viscd\1ay 2(r. l9 /(,
tsy'l Nt-: (;\16-().1:tt
FIGURES
F i g u r e l . Ittlvl3340/:1,144 DiskStoraire . . . lic:nse urnrnand\
L l(r
F i g u r e 2 . I F A 3 3 4 0 / - i 3 4 4 a x i m u nC e n l ' i s u r a l i o n
M r 5 ( lontrol (.onrnrirrrils ) l
F i g u r e3 . ISC or 3IJ30-2 Maximurn Llonl"isuration ) R c a c i( - o r n n r a r r d s -19
F i g u r c 4 . l ) a t a S u r f a c e ' l ' r a c kl - a y , o u t. . . . . W r i t . e( . ' o r n m a n L l s -)l
F i g u r e5 . l ) a t a M o d u l e ( i e o n r c t r v S e a r c h( . ' o r n n r a r r r l s ll
l'igure b. l { e c o r d a n d ' l ' r a c k F o r m a r S c r r s c[ 3 y t . e s . ] - J S u m n r a r y . . . . . .
( ,15
-
F i g u r e7 . l ' r a c k , / ( l y i i n c l cC : . i p a c i t i r : sN o K c l s .
r - J - 1 . 1 '0 r r l r a ti 5 c ; t s cl l t t c S u n i l t r a r v. . . . . .
l o 36
Figurc8. Darta odule Capacitics Ntr Keys . . . .
M -
-l-rack,/Cylincle - l . l - 1 .l1o r r r u r l I S c n : ; cB y t c S u n r u t a r y . - .
" -18
F i g u r c9 . ,
r C a p r a c r t r c sW i r h K c y s
l r o r m a t s l . 4 , a n d 5 M e s s a p ' . q 'u r n i r r . r r v
S 10
F i g u r e 1 0 . D a t a f r 4 o d u i e a p a c i t i c r, V ' 1 i r h L : y ' s
C K
F o r n t . r t- l S u l r r n r r r y 4l
Irigure I I . Errclr CS.e n s i n g s s t a n d a r t l . F i x e d l l e a d
r r i 3 3 4 t ' t - 7 0 F a t a r n o d u l eo n a r . r y 3 4 0 d r i v c t l ' r r t h a s
d 3
S t o r a g ei s a v a i l a b l e . u t m u s t b e t l r d e r c dL r yn r o c l c l .
b [ - r e e n o n v e r t e df o r f i x e d h e a r -rl. r s c . h i s 7 0 - m c g a b y t c
c T
l ' h e 3 3 4 4 l \ { o c l e R 2 F c o n t a i n sl ' i x e dh c a d s t o r a q ea n t i
l cletamclilulccontains lixed heads in addititlu ttl tl.tc
t h e M o d e l I l 2 d o e sn o t . r r o r m a la c c c s s c a c l s .W i t h t h c s c l ' i x e dh e a c l s5 0 0
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t l . r o u s a n h l t c s t l l s t ( ) r a g e r e a v a i l a b l ct h a t h a v e z er < r
cy a
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s t r i n g : i ' w i t c h ea t t t r c i s i n s t a l l c do n t h c 3 3 4 0 - 4 2
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h h
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(controller) [e'ature crrrtitshc 3340 strins t
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