
chaanal prograamnu amalu cheyandi

ibm mainframe operating systemlalo, execute chaanal programme (esppi) anedi oka vyavastha kaalnu roopondinche sthuula roopam, idhi takkuva-sthaayi parikara access kosam paryaveekshakudi coll suuchanagaa amalu cheyabadutundi, ikkada programmer "chaanal programme"-parikara-nirdishta aadesaala (ccws) jaabitaanu andinchadaaniki baadhyata vahistaadu-ii/oo chaanellu, niyantrana unitlu mariyu parikaraala dwara amalu cheyabadutundi. OS/360 mariyu vaarasula kosam expi anedi OS system programmer guidelo marinta pratyaekamgaa vivarinchabadindi.daas/360 mariyu vaarasula kosam expi marinta pratyaekamgaa daas supervisor mariyu ii/oo macrolalo vivarinchabadindi.
eee vyaasam ekkuvagaa os/360 nundi z/os varaku pratibimbistumdi; konni vivaralu tos/360 mariyu dos/360 nundi z/vse varaku bhinnamgaa untaayi.
datasetlanu perkonadam.
expi, legacy parikaraalu mariyu legacy datasetlanu upayoginchadam saapekshamgaa adhika panitiirutoe nirvahinchavacchu. OS kosam dayta controll block (dcb) mariyu Dos kosam dtfph nuu perkonadam dwara expi parikaraalu teravabadataayi (antey, applicationku andubaatulo unchabadataayi).
ii/oo karyakalapalanu perkonadam.
os/360 nundi z/os varaku, programme expi cheyadaaniki "input/avtput block" (aiobi) nuu andistundi; programme bahula aiobi laku expiny amalu chesthe, system vaatini abhyardhinchina kramamlo proses chestundi. dasd kosam aiobi loe embibisihechar aakrutilo "iobseek" anae seek chirunama untundi, ikkada m anedi paridhi, bibi anedi dayta sell kosam binn, sihechhech anedi cylinder mariyu head, mariyu aarr anedi record number.
anubandhalu.
"anubandham anedi programmer vraasina rotein, idhi adanapu sevalanu andistundi.
chaanal programme amalu samayamlo ii/oo karyakalapalapai niyantrana."anubandhaala samagra jabita (exip sandarbhamlo nishkramanalu) adheekruta prograamlanu aneka vyavastha bhadrata mariyu dayta samagrata tanikheelanu adhigaminchadaaniki ledhaa penchadaaniki anumatistundi. eee anubandhaalalo chaalaa varaku OS yokka munupati sandarbhaalato anukuulata kosam maddatu istayi, conny aneka vidhulu mvs kosam savarinchabaddaayi ledhaa vistarinchabaddaayi. anubandhalu dcbloe module paeru igg019x yokka chivari rendu aksharaluga perkonabaddaayi, ikkada xx = vaa nundi z9 varaku, kalupukoni untaayi. eee module paerlu samsthaapana-vraata anubandhaala kosam ketayinchabaddayi. ibm access paddhatula upayogam kosam igg019ex phaaram yokka edainaa itara paeru ketayinchabadindi. anubandhalu tappanisarigaa sys1.svclib (sys1.lpalib svs ledhaa OS yokka taruvaati sandarbhaalalo) loe undaali.
dataset samagrata.
saadhaaranamgaa, oka programme expi kosam oka dsibini terichinappudu, open anubandha dataset yokka modati valume kosam prati "paridhi" nii kaligi unna "dayta extent block" (deb) nuu srushtistundi; ayithe, "samaantara mount" open kosam anni valuemlaku anni sthaayilanu kaligi unna debnu srushtistundi. prati debnu munduki mariyu venukaku dcbki golusugaa unchutaaru, mariyu dcblo asurakshita viniyogadaaru nilvalo unnanduna, espee vyavastha bhadrata charyaga golusunu tanikhi chestundi, ayithe deb rakshita vyavastha nilvalo untundi, sub pool 253; oes/verses 1loe mariyu oes/verses 2 espeelo deb open dwara srushtinchabadindani nirdhaarinchadaaniki debchaknu upayogistundi. dasd kosam, aiobloni seek chirunama oka paridhi lopala undho ledho expi tanikhi chestundi mariyu "sett file mask" nuu upayogistundi, udhaa.zii. aaa paridhi cylinder ledhaa track oriented kaadaa, vraayadaaniki anumati undaa anie soochinchandi; idhi perkonna track (cylinder) nundi vetakadaanni nirodhistundi. programmer track (cylinder) chivara daati chadavadaaniki prayatniste, oka "unit check" sambhavistundi mariyu error recovery prastuta paridhi yokka tadupari track (cylinder) thoo chaanal prograamnu punahpraarambhistundi. operation antam daati velthe, exepi "end off end" anubandhaanni pilustundi, idhi aiobini naveekarinchi, abhyardhananu tirigi jaarii cheyamani ledhaa exepi daanini muginchamani abhyardhinchavacchu.
vaarasatva datasetlu matrame.
expi konnisaarlu direct access storage device access paddhatitoe ayomayam chendutundi, conny idhi pratyaekamgaa direct access storage parikaraala kosam kaadu; badulugaa, idhi edainaa "legacy" parikara rakam mariyu edainaa "legacy" dataset samsthaku maddatu ichhe saadhaarana prayojana takkuva-sthaayi parikara access interfaces. anni" parikara rakalu mariyu "anni" dataset samsthalanu access cheyadaaniki, marinta saadhaarana prarambha input/avtput interfaces (startio) mvs/370loe andubaatulo undhi mariyu idhi adhikarikamga maddatu ichhe interfaces kaanappatikee, OS yokka tadupari sandarbhaalalo andubaatulo undhi.
pratyaksha praapyata datasetlapy karyakalapalanu saralikrutam chesindi.
expi yokka vaividhyam execute direct access programme (xdap), idhi direct access storagenu access cheyadaaniki matrame upayoginchabadutundi mariyu ippatike unna direct access storage recordulanu chadavadaaniki mariyu naveekarinchadaaniki andinchabadutundi. recordulanu jodinchadaaniki xdapnii upayoginchalemu, conny atuvanti datasetlaku rikaardu cherpulanu prabhaavitam cheyadaaniki bsam ledhaa bpamthoo paatu xdapnii upayoginchavacchu, mariyu aneka OS bhagalu eee paddhatiloo xdapnii upayogistaayi (mukhyamgaa linkage editor, iewl).
telecommunication parikaram access.
ibm 2701,2702 mariyu 2703 communication kantrolarlaku mariyu ibm 370x ledhaa emdall 470x front-end processorlu (mariyu vaati sambandhita phaalo-aanlu) emulator mode (ipi) ledhaa vibhajana emulator mode (pep) loe panichese communication parikaraalanu access cheyadaaniki kooda expiny upayoginchavacchu.
paryaveekshakuditoe sambandham.
expi yokka front-end ellappuduu task controll block (tcb) modlo untundi, idhi applicationla kosam saadhaarana mode, endukante expi anedi type 1 esvisi.
mvs/370 mariyu oes yokka tadupari sandarbhaalalo, espi processor chaanal programme amalunu schedule cheyadaaniki startionu prerepistundi. esppi processor yokka byaak-end ellappuduu servies rickwest block (srb) modlo unnappatikee, byaak-end emulation kodnu kaligi untundi, idhi OS yokka munupati, prii-mvs sandarbhaala kosam abhivruddhi cheyabadina anubandhaalanu anumatistundi, pratyaekamgaa espi kosam, munupatilage ekkuvagaa panicheyadaaniki mariyu tadwara tcb modlo unnatlu kanipistundi, dheeni kosam eee anubandhalu modata roopondinchabaddaayi. eee vyatyaasam konni roll-mea swantha access paddhatulu mariyu anuvartanaalanu mvsga marchadanni klishtataram chestundi.
chaanal karyakramalu.
system/360 chaanal prograamlu anevi chhaanel mariyu ii/oo parikaram dwara amalu cheyabade aadesaala kramam. chaanal prograamlanu pradhana nilvalo ekkadainaa unchavacchu. chaanal programme anedi "chaanal command words" (ccws) yokka kramam, idhi "chaanello badilee" (tick) anie piluvabade oka saakha amalu cheyakapothe ledhaa chhaanel sthithi maarpunu tirigi ivvakapothe varusaga amalu cheyabadutundi. prati cisidableu eee krindi vidhamgaa double vard (enimidi baitlu) gaa untundih
dayta chirunama (8-31) anedi daetaanu badilee cheyalsina pradhana nilva buffer praantam yokka 24-bitt chirunama.
flag bits (32-36) eee krindi vidhamgaa nirvachinchabaddayih
count feeled (48-63) eee command dwara badilee cheyavalasina baitla sankhyanu suuchistumdi.
ii/oo karyakalapalanu praarambhinchae mottam enimidi bits commands parikaraniki pampabadataayi. "modifier bits command elaa amalu cheyaalo parikaraniki paerkontaayi."udaaharanaku, ibm 2305 dasd kosam" "vraayandi" "aadesam ('mmmm01' bx) krindi viluvalanu kaligi undavachuhu

