Gebruiksaanwijzing /service van het product XP10000 van de fabrikant HP (Hewlett-Packard)
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HP S tor age W orks Busine ss C o p y XP u ser gui de f or the XP1 2000/XP1 0000/S VS200 Pa r t n u m b e r : T 1 7 1 3 - 9 6 0 07 F ifth edition: Marc h 200 7.
Legal and notice information © Cop yr ight 1 9 99 , 200 7 Hew lett-P ac kar d De velopment C ompan y , L.P . Con fi dential compute r softwar e. V alid li cense fr om HP r equired f or posse ssion , use or cop ying . Consistent w ith F A R 1 2.2 1 1 and 1 2 .
Co nt e n t s A b o u t t h i s g u i d e ................ .......... 7 I n t e n d e d a u d i e n c e ................ .................. .... 7 P r e r e q u i s i t e s ............... .................. ....... 7 R e l a t e d d o c u m e n t a t i o n .
S t a r t i n g B C .................. .................. .... 5 2 B C m a i n s c r e e n .............. .................. .... 5 3 V o l u m e l i s t .................... ................ 5 5 D e t a i l w i n d o w ......................... .....
Fi g u r e s 1 .. B C o v e r v i e w ............. .................. ... 1 2 2 .. A d d i n g a p a i r i n B C ............... ............... 2 2 3 .. Update cop y o p e r a t i o n .................... ......... 2 3 4 .. N o r m a l a n d q u i c k p a i r r e s y n c o p e r a t i o n s .
Ta b l e s 1 .. D o c u m e n t c o n v e n t i o n s .............. ................. 8 2 .. B C o p e r a t i o n a l r e q u i r e m e n t s f o r t h e a r r a y .................... . 1 4 3 .. T o t a l n u m b e r o f d i f f e r e n t i a l t a b l e s p e r p a i r .
About t his guide This guide pr ov ides inf ormation about: • using Busine ss Cop y XP operati ons • pr eparing Bus iness Cop y XP oper ations • starting Busine ss Cop y XP operati ons • perfo.
Doc ument con v en ti ons and s y mbols T able 1 Document c on v entio ns Conv ention Element Blue te xt: T able 1 Cr oss- re fer ence l inks and e-mail addr esses Blue , underlined te xt: ht tp://ww w .
• Deta iled qu estions Sub sc r ipti on s ervi ce HP r ecommends t h a ty o u r e g i s t e ry o u rp r o d u c ta tt h eS u b s c r i b e r ' sC h o i c ef o rB u s i n e s sw e b s i t e : h ttp:/ /ww w .
10 About t his gu ide.
1 B usines s C op y XP (BC) f or t he A rray H PS t o r a g e W o r k sB u s i n e s sC o p yX P ( B C )m a i n t a i n si n t e r n a lc o p i e so fu s e rd a t ao nd i s ka r r a y sf o r purpos es such as data bac k up or dupli cation . Dupli cate volumes are cr eated on the same disk arr ay as the pr imary volume at har dw are s peeds.
Fig ure 1 BC overvi ew Use BC f r om the Command V ie w XP management s tati on or XP Re mote W eb Console t o make local copies of v olumes. The v olume that has original data is called a P-V OL (primary volume) , and a volume to whi ch data is cop ied is called an S-V OL (secondary volume).
differ ential data in the P-V OL (due to P-VOL and S-V OL updates) is copied to the S-VOL, so the S-VOL is again identi cal to the P-V OL. F or re ver se r es ync , the differ enti al data in the S-V OL (due to P-V OL and S-V OL updates) is copi ed to the P-V OL, so the P-V OL is no w identi cal to the S-V OL.
T able 2 BC operational requirements for the arra y Pa r a m e t e r Req uire me nt P air objects Logi cal devi ce s (LDEVs): O PEN-x (suc h as OPEN-3, OPEN-9 , OPEN-E , and OPEN-V), inclu ding CVS and LU SE vo lumes. Dev ices m ust be installed and con fi gured .
Pa r a m e t e r Requirement Phy sical de vice (P DEV) maintenance Maintenance of a P DEV that is not use d by BC does not aff ect BC oper ations or the status of BC pair s. If a P DEV contains LDEVs used by BC, y ou can maintain that PDE V independentl y of the BC oper ations and pair s tatus .
• Hitachi F lashCopy Mirr oring ver sion 2 • Fl ex C o py X P • Auto LUN XP • Snapsho t XP F or more inf ormation , ref er to the follo wing doc uments: • F or Shado wImage for z/OS , Hitac .
T able 3 T otal numb er of dif fer ential t ables per p air Emulation type Equation OPEN-3 OPEN-8 OPEN-9 OPEN-E OPEN-L T otal number of differ ential tables per pair = [(X ÷ 48) + (Y x 1 5)] ÷ Z •.
T able 5 Re lation ship be twee n emulati on type, c apacity , and diffe rent ial table s Emulation type Capacity 1 Dif ferential tables per pair OPEN-3 Does not depend on capacity 1 Up to 2 .7GB 1 Up to 5. 5GB 2 OPEN-9 Up to 6.8GB 3 Up to 2 .7GB 1 Up to 5.
Capacity 1 Differ en- tial tables Capac ity 1 Differen- tial tables Capacit y 1 Diffe ren- tial tables Up to 344.2GB 23 U p t o 823. 2 G B 55 Up to 1 ,30 2 .2 GB 8 7 Up to 3 5 9 .2GB 24 Up to 8 38.2GB 5 6 Up to 1 ,3 1 7 .2GB 88 Up to 3 7 4.2GB 25 U p t o 853.
Capacity 1 Differen- tial tables Capac ity 1 Differen- tial tabl es Capac ity 1 Differen- tial tables Up to 1 ,8 5 6. 1GB 12 4 Up to 2 ,3 50. 0GB 15 7 Up to 2 ,844. 0GB 19 0 U p t o 1 ,87 1 .0G B 1 25 U p t o 2,36 5.0 G B 1 58 U p t o 2,85 9 . 0 G B 1 9 1 Up to 1 ,8 86 .
•( Β ) = 30, 7 1 8 when additional shar ed memory for diff eren tial tables i s installed. F or e xample , if y ou cr eate 1 0 pairs of L U SE volumes consisting of three OPEN-3 v olumes, use the f.
Befor e the initial copy oper ation , the status of a pair is SMP L. T he status of the pair i s COP Y(PD) (PD = pending) whi le the initial copy oper ation is in pr ogr ess.
CA UT ION: Even if a copy oper ation is completed without an y host I/O, the data in the P-V OL and S -V OL may not b ei d e n t i c a l . W h e t h e rt h eP - V O L a n dt h eS - V O Lh a v et h es a m ed a t ad e p e n d so nt h ec o n d i t i o no f t h e disk ar r ay .
new pair , all P-V O L data is copi ed to the S-V OL. When the split operati on is complete , the pair status changes t o PS U S, and y ou hav e full r e ad/wr ite acce ss to the split S-V O L (e ven though it is still r eserved).
F or w ar d pair r e syn c o p e ra t i o n A forw ard pair r es y nc oper ation r es ync hr oni z es pairs b y copy ing data on P-VOLs to S-V O Ls. The f ollo wing ar e the types o f f orwar d pairr es ync oper ations: • Normal .T h i s o p e r a t i o n ( s e e Fi g u r e 4 ) r es ync hr oni z es the S-V OL with the P -VOL .
• Reverse . This oper ation (s ee Fi g u re 5 ) sy nchr oni zes t he P-VO L with the S- VOL . T he copy dir ection for a rev erse p airres ync op eration i s S-VOL to P -VOL. T able 7 shows the r equire ments for re v erse and quic k res tor e pairr es ync oper ations.
Figure 5 R e ver se and quic k restor e pair operations NO TE: T h eP - V O Lr e m a i n sr e a d - e n a b l e dd u r i n gt h eq u i c kr e s t o r eo p e r a t i o n o n l yt oe n a b l et h eh o s tt or e c o g n i z e the volume .
2. Because Cache L UN settings are e xc hanged during a quic k res tor e operati on, y ou must perf orm one of the f ollo wing oper ati ons. If y ou do not , the change of location of cache r esi dence areas may c a u s eI / Op e r f o r m a n c et ot h eC a c h eL U N d a t at o b ed o w n .
F i g u r e 6B CP - V O Lf o r m i n gp a i rw i t hC o n t i n u o u sA c c e s sX PS - V O La n de x t e r n a lS - V O L , res pec tivel y Fig ure 7 B C P-V OL form in g pa ir wi th extern al S -V .
status c hanges to P AIR. T he disk arr ay r esumes BC u pdate copy oper ations after the pair status c hanges to P AIR. T he P-VOL r emains f ully accessible dur ing a normal pair re sy nc oper ation , but becomes inaccessible to all hos ts during a r e ver se or qui ck r estor e pa irr es y nc oper ation .
Use the P airs plit-E w indow to s uspend BC pairs . When a pair is sus pended, the s tatus c hanges to P SUE . When the pairr es ync oper ation starts, the pair status c hanges to COP Y(R S) . The P-V OL remains f ully accessible w hile suspended and during the pair r esy nc oper ation.
Figure 1 1 Q uick Restore operation wit h or without Sw ap&Freeze option The Quic k Res tor e pairr es ync oper ation on a pair with st atus of P S US e xc hanges data in the pair's P-VOL and S-VOL .
F or L ev el 1 (L1 ) pairs, the r oot volume could ha ve MU=0, MU=1 , and MU=2 . For L1 pairs, the assoc i ated S-VOLs all have MU=0 bec ause this is the fi rst pair of w hic h they ar e a member . F or the L ev el 2 (L2) pair s, the L1 S-V OLs ar e no w all acting as L2 P-V OLs.
NO TE: • Combining L1 and L2 p airs w ith Continuous Access XP volumes is allo wed; how ev er , Continuou s A c c e s sX Pc o n s i d e r sn o d ea n dl e a fv o l u m e sa ss e c o n d a r yv o l u m e s( S - V O L s ) .
T able 1 0 Re lations hip betw een L 2 pair stat us and L1 p air o perat ions L1 P air Operations L2 P air Status Pa i r c r e a t e Pa i r s p l i t Pa i r r e s y n c Reverse/ Qui ck Restore Pa i r .
T able 1 2 Read/write operation (host to the leaf v olume) and L2 pair status L2 P air Status COP Y PA I R COP Y(SP) PSUS( SP )/ PSUS CO P Y(RS) PS UE Rea d O nly Rea d O nly Rea d O nl y Rea d /Write Read Only Read Onl y At-T ime S plit functi on In the past , a BC pair gr oup split e ach L UN pair in the gr oup at a sli ghtly diff er ent time .
Figure 1 3 Overview of At -Time Split fun ctio n Enabling the At-T ime Split func tion u sing R AID Manager 1. Create BC At-Time Split pairs as follo ws: a. De fi ne a consist ency group f or BC pairs . Y ou cannot de fi ne L1 and L2 cascade pairs (see Cascade f unction ) shar ing the same node v olume in a consis tency gr oup .
NO TE: Aft er the pai rsp lit , r espons e time of t he fi rst I/O to ea ch lo gica l un it ( L U) c an b e up to app ro ximat ely fi ve se co nd s in t he wo rst c ase. Thi s wors t ca se s hou l d be i n a on e -to -t hre e BC p ai r si t ua tio n an d 36 LDEV L USE co n fi gur ati on .
4. The f ollo wi ng are the ty pes of pair s tatus (P S US and P SUE) when the pair is not s y nchr oni z ed: • When you s plit a pair (pairsplit), the p air status c hanges to COP Y(SP) or P SU S(SP) for qui c k pairsplit . Duri ng the pairsplit pr oces s, the pair statu s becomes COP Y(SP).
T abl e 1 3 BC pair s tatus con ditions P air Status Desc ription S-V OL Access SMPL The vol um e is n o t assigned to a BC pair . The disk arra y accepts r ead and wr ite I/Os for all SMPL vo lumes that ar e not r eserve d. N/A (there is no S-V OL yet).
NO TE: If the shar ed m emory is v olatili zed w hen yo u sw itch o n the pow er su ppl y again , the pair in the COP Y(SP) or PSUS(SP) status c hanges to PSUE .
• Command V ie w XP management s tati on (us er-suppl ied Wi ndo ws-ba sed PC) or X P Remot e We b C o n s o l e . • BC license k e y installed . Pr epar ing for B C operati ons T o ensure that y .
Comb ining BC w it h other data ma nagement operations BC supports con cur r ent operati ons with the fo llow ing data management func tions: • L U Size Expansion (L USE) . L USE volumes can be ass igned to BC pairs if the P-V O L and S-V OL hav e the same L U type and n umber of LDEVs (same siz e) .
BC and Continuous Access XP Journal can functi on together in the same Local disk arr ay to pr ov ide both internal and r emote back up for y our important data . NO TE: • A primary vo lume (P- V OL) of Continuou s Access XP Journal means a primary data volume of Continuous A ccess XP Journal .
Figure 1 6 BC and C ontinuous Acce ss XP Journal: Shared P - V OL and S - V OL Fi g u r e 1 7 is an ex ample of a volume that func tions as both a Continuou s Access XP Journal P-V O L and a BC P-V OL, w hile the S-V OL of the same Con tinuous A ccess XP Jour nal pair also functi ons as the P-V OL of another BC pair .
Comb ining BC an d Continuous Access XP oper ations BC and Continuo us Acces s XP can functi on together in the same disk arra y to pr o vide both inte rnal and r emo te bac ku p for important data . NO TE: • BC is r ecommended f or intr a-disk arr ay cop y oper atio ns.
Figure 1 9 BC and Continuous Access XP: shared P - V OL/S - V OL CA UT ION: When you shar eaB CP - V O Lw i t haC o n t i n u o u sA c c e s sX PS - V O La ss h o w ni n Fi g u r e 1 9 ,t h ew r i t e operati on to the Continuous Acces s XP P-VOL takes time.
Figure 2 1 BC an d Continuous Access XP: shared S - V OL/P- VOL Usually C ontinuous A ccess XP and Continuous A ccess XP Jour nal can share v olumes w ith BC. Ho we v er , in some cases , you cannot c r eate BC pairs using v olumes shar ed with Con tinuous A ccess XP and Continuous Access X P Journa l.
Figur e 23 BC, Continuous Access XP , and C ontinuou s Access XP Jour nal: Shar ed S -VO L / P -VO L / S -VO L Com bin in g B C with L UN Sec ur ity XP Extension BC can creat e pairs using v olumes for w hich L UN Secur ity XP Extension sets the access attr ibute .
T ab le 1 7 VMA set ting a nd availab ility of Paircreate o perati on S-VOL P-V OL V olume without VMA V olume with VMA Vo l u m e w i t h o u t VMA OK NO Vo l u m e w i t h V M A NO OK NO TE: Y ou can specify a volume with VMA as a reserv e volume.
CA UT ION: Because the S-V O L's access attribute is c hanged after copy ing the P-V OL's access attribute , be car eful a b o u ta c c e s sa t t r i b u t e so fv o l u m e st ob es p e c i fi ed as BC pair s.
Y ou can also copy access attr ibutes of cas caded pairs. Fi g u re 25 show s the r equir ed licens e capac ity of L UN Sec ur ity XP Extension when y ou c re ate cascaded pairs u sing volumes w ith VMAs and access attr ibut es .
Figure 26 BC m ain s cree n Y ou can now perfor m BC operati ons. Y ou fi rst need to reserve the volum es you plan to use as BC S-V OLs (see Setting res erve attribute s for ins tructi ons). Y ou can then s tart adding BC pairs (see Creating B C pairs (P a ir cr eate) f or instruc tions).
NO TE: Yo u c a n fi lter vo lumes or volume pairs displa yed in the V olume list on t he upper-ri ght side of t he Displa y tab b y selecting a port, host gr oup , or v olume (P-VOL). T o display all volumes and pairs, select Po r t ( Subsy stem ) at the top o f the T ree V iew bo x.
NO TE: The value (X) does not in clude Auto L UN XP , Fle x Copy , Snaps hot XP , Hitachi F lash Copy Mirr or ing, or Hi tac hi F lashCo py Mirr or in g V ersi on 2 pair s. If the se pair s ex is t , BC pair cr eate ope r ati ons ma y f a i l ,e v e nw h e n( X )i sl e s st h a n8 , 1 9 1 .
Fig ure 27 V olu me l ist The V olume list contains all inst alled volumes (L Us) on the selected port and display s the foll ow ing infor mation f or each v olume: • Po r t : P or t ID ( clust er an d cha nn el nu mb er) of each volu me. If L 2 pa irs exist, a di fferent ic on display s .
Y ou can perfor m BC operati ons for v olumes in the V olume list by using the f ollo wing shortc ut menu commands (see also Ta b l e 2 1 ): • Detail : Display s pair status f or selected v olumes/pairs. • Pa i r c r e a t e : Cre ates or adds new BC pair s.
Fig ure 28 D eta il wi nd ow S-V ol P ath w indow This win do w display s inf ormation on the s elected pair (all paths de fi ned f or the S-VOL). T o open the S-V ol P ath windo w , selec t one or more pair s in the V olume list , righ t-cli ck , and select S-V ol P at h .
Display F ilter wi n d ow Thi s wi nd ow fi lt ers volumes displa yed in the V olum e list b y rese r v e at tri bute, pair condition , and pair status . T o open the Display F ilte r windo w , cli ck Disp lay F ilter on the BC main screen , or select an y pair or volume in the V olume list , right-c lic k, and select Displa y Filter .
• Pa i r S t a t u s : • BC : Displa ys or hide s BC pairs. • Snapshot XP : Displa ys or hi des Snapshot XP pair s. NO TE: If a ch eck b ox is no t sele cte d, all ch eck b oxes in ea ch tab a re gray e d out. • BC : Chec k box es f or the pair statuses ar e a vailable onl y when y ou select the Pa i r che ck b ox i n th e Attribute bo x .
NO TE: An LD EV num ber end ing with # (for e x amp le , 00: 0 1 # ) indicates the LDEV is an external volume . • Pa c e : Cop y pace for all pairs being c r eated: Slow er , Med i um ,a n d Fa st e r .F o r m o r e i n f o r m a t i o n about what a ppears if you s elect Snapshot XP pairs, see the HP Stor age W orks Snapshot XP user gu ide .
2. F r om the BC main scr een , select the port, ho st gr oup , or L UN in the T ree V ie w box . 3. Display reserved SM PL volumes in th e Vo l u m e L i s t .
2. In the BC main scr een, select the port, host gr oup , or L UN in the T r ee Vie w box . 3. T o display r eserved SMPL volumes in the V olume l ist , open the Display F ilter w indo w , select the Reser ve(d) check box, an d click OK . 4. Select the v olumes, r ight-clic k, and se lect Change R eserve .
•S e l e c t S - V o l b o x •B u t t o n s • Creati ng L1 pairs Pa i r c r e a t e Vo l u m e L i s t The V ol um e List in the upper half of the P airc r eate windo w displa ys the f ollo wing.
NO TE: Y ou can s elect an MU n umber f or a cas cade pair . Y ou canno t selec t the same MU numb er f or diff er ent cascade pairs of the same P-V OL (r oot or node volume) . Select S-V o l box Thi s box fi lters S-VOLs display ed in the S-VOL list .
NO TE: T o appl y the ne w pair oper ati on se tting displ ay ed in the Pr eset L ist to t he disk ar r ay , c lic k Apply on the BC main sc r een. • Cance l : Cancels the oper ations set in the P air cr eate w indo w and clos es the P airc reate w indo w .
CA UT ION: Th e L 2 p a i rc re a t e o p e ra t io n ov e r w ri t e s a l l exi s t i n g d a t a o n th e L 2 S - VO L s . You a re re s p o n s i b l e fo r backing up t he data on the S-V OLs befor e cr eating BC pairs . Cr eating L2 pairs 1. Ensure that the L2 S-V OLs are unmounted .
NO TE: An LDEV number ending with # (f or ex ample , 00: 0 1# ) indicates the LD EV is an exter nal volum e. • MU :M Un u m b e ro ft h eP - V O L • Status :S t a t u s o f t h e P - V O L • Po .
NO TE: Th e number of secondary v olumes that can be dis pla y ed in the S -V OL L ist at one time is limi ted t o 1 , 02 4. If th e number o f v olumes d e fi ned in the disk a rr ay ex ceeds this l imit , use the Prev ious and Ne xt buttons on the upper right of the S -V OL List to turn the p ages of th e S-VOL List and see the e ntire list .
2. In the BC main sc reen , select the port, host gr oup, or P-VOL in the T ree V ie w box t o fi lter the volumes display ed in the V olume list . 3. Select the pairs y ou w ant to split , ri ght-cli ck the selec ted P-VOLs, and select Pa i r s p l i t .
b. Ensur e that the L1 pairs are spli t (status = P S US). c. In the Select MU lis t, s elect the MU number ( 1 or 2 ) for the L2 pair to be cr eated . d. F r om the P airsplit V olume Lis t , select t he volume to a ssign as the S-V O L f or the L2 pair .
• CLP R(S) : Cac he logical partition of the S-V OL Win d ow op ti on s • Use the R es ync T y pe list to s elect the pairr esy nc type for pairs being r es ync hr oni z ed ( Norma l Cop y , Quick R es ync , Reverse Copy ,o r Quick Rest ore ).
CA UTION: D u rin g t he q u ick re s tore o p e rat io n, t he R A I D leve l s, H D D t yp e s, a nd C a ch e LU N se t t i ng s are s wa pped. T o avo id perfor mance impact due to quick r estor e op er ations: • Ensure th at the P-V OL and S-V OL hav e the same RAID lev el and HDD type befo r e perfor ming the quick r est ore oper ation .
4. Repeat s tep 2 — step 3 to sus pend additional pairs in the l ist . 5. In t h e BC m a in scre en, cl ick Apply to suspend the spec i fi ed pair s. The BC main sc r een now dis play s the re sults of the pairsplit-E oper ations (that is , pair status c hanged to PS UE) .
Fig ure 39 H is tor y p an e NO TE: If Snapsh ot XP is install ed, t he lo wer area o f the pane lists t he oper ati on history of Snapshot XP pairs. F or mor e info rmation , see the HP Stor age W orks Snapshot XP user guide . The upper area of the His tory pane lists the operati on history of BC pair s.
T able 22 BC pair activ ity cod es, mess ages , and descriptions Code Mes sa ge Descri ption 47 1 0 - 47 1 F PA I R S T A R T BC initial copy operati on started . 472 0 - 47 2 F P A I R E N D BC initi al copy oper ation ended , and pair statu s changed to P AI R.
NO TE: Mor e options w ill be supported in the f utur e. See BC options for fu r th er i n fo rma t ion. The Apply button applies the option settings in the Select Option bo x. Setting a BC option (S wap&F reez e option) 1. In the BC main scr een , cli ck Opti on to disp lay the Selec t O ption bo x.
Error Code De scr ip ti on Co rr ecti v e Act io n 0 818 T he P airr es ync or P airs plit-E command canno t be issued because a path gr oup is s et. Unmount the S-VOL (of fl ine fr om the host), or delete Cont inuou s Acces s XP path. 08 1F Command Re ject .
Error Code Des cr ip ti on Co rr e cti v e Act io n 10 0 4 Logical con tradicti on. Call H P technical supp ort for assistan ce. 10 0 5 Log ic a l co nt ra dicti on. Call HP technical supp ort for assistan ce. 10 0 7 Logical contr adiction . Ca ll HP technical s uppor t for assistance.
Error Code De scr ip ti on Co rr ecti v e Act io n 10 3 3 Th e sp eci fi ed P-VOL is not r eally a P-V OL. Check pai r status. 10 3 7 Th e sp eci fi ed P-VOL has b een set as a BC S-V OL. Chec k pair stat us. 10 3 A Th e P air res ync c om ma nd was i ssu ed t o a device in the SMPL status.
Error Code Des cr ip ti on Co rr e cti v e Act io n 10 71 The sta tu s clas si fi cation (statusindc) in the Status Check command is incorr ect . Call HP te chnical suppo rt for assistanc e. 10 7 2 Th e CU n um be r spe ci fi ed by the Statu s Check command (vo lume status) does not ex ist .
82 Business Cop y XP (BC) for the Arr ay.
In de x A access attributes copy ing ,4 9 licens e capacity ,5 1 setting w ith L UN Sec urity XP Extensio n ,4 9 At-T ime Split func tion ,3 6 att ributes copy ing ,4 9 licens e capacity ,5 1 res e t .
initial copy oper ation ,2 1 inqrai d command ,1 6 L L1 pairs ,3 3 ,6 6 L2 pairs ,3 3 ,6 7 LDEV maintenance ,1 5 leaf v olume ,3 3 license capac ity , L UN Sec urity XP Extension ,5 1 L UN Secur ity X.
pairs At- Tim e Spl it fun ct ion ,3 6 back war d re sy nchr oni z ation ,2 5 cascade ,1 3 ,2 3 ,3 2 Continuous A ccess XP Journal ,4 3 cr eating and splitting ,7 0 deleting ,3 1 , 7 4 Detail w indo w.
S-V OLs At-T ime Split functi on ,3 6 backw ard pair re sy nc oper ation ,2 5 cascade f unction ,3 2 Continuous Access X P ,4 6 Continuous Access X P Journal ,4 3 cr eating and splitting pair s ,7 0 d.
Een belangrijk punt na aankoop van elk apparaat HP (Hewlett-Packard) XP10000 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen HP (Hewlett-Packard) XP10000 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens HP (Hewlett-Packard) XP10000 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding HP (Hewlett-Packard) XP10000 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over HP (Hewlett-Packard) XP10000 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van HP (Hewlett-Packard) XP10000 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de HP (Hewlett-Packard) XP10000 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met HP (Hewlett-Packard) XP10000 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
