Instruction/ maintenance manual of the product HP c-Class BladeSystem HP (Hewlett-Packard)
Go to page of 88
HP S tor age W orks Br ocade 4Gb S AN S w itc h f o r HP c-Clas s Blade S y stem user g uid e *AA-RWEBB-TE* P art number : AA-RWEBB-TE Fi rst editi on: September 200 7.
Legal and notice information © Copy r ight 200 7 He wlett-P ack ard Dev elopment Co mpany , L.P . © Copy r ight 200 7 Br ocade Communicati ons S yst ems, Incorp orat ed The inf ormati on contained her ein is sub ject to c hange wi thout noti ce.
Co nt e nt s About t his gu ide . .................... 9 I n t e n d e d a u d i e n c e .......... ............... ...... 9 S A N S w i t c h r e l a t e d d o c u m e n t a t i o n ........................ 9 H P c - C l a s s B l a d e S y s t e m r e l a t e d d o c u m e n t a t i o n .
S e t t i n g t h e d a t e a n d t i m e................... ...... 3 3 V e r i f y i n g i n s t a l l e d l i c e n s e s ......... ............... 3 4 M o d i f y i n g t h e F C d o m a i n I D ( o p t i o n a l ) .......... ......... 3 5 D i s a b l i n g a n d e n a b l i n g a s w i t c h .
C l a s s A e q u i p m e n t ............ .............. 5 7 E u r o p e a n U n i o n n o t i c e ......... ............... .. 5 8 B S M I n o t i c e ........... ............... ..... 5 8 J a p a n e s e n o t i c e... ............... ........... 5 9 K o r e a n n o t i c e s .
Fi g u r e s 1 .. I d e n t i f y i n g c o m p o n e n t s ....... ............... 1 5 2 .. 4 G b S A N S w i t c h e x t e r n a l p o r t s .................. 1 6 3 .. C a r t o n c o n t e n t s .......... ............... 2 2 4 .. R e l e a s i n g t h e i n s t a l l a t i o n h a n d l e.
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 ...................... 1 1 2 .. B r o c a d e 4 G b S A N S w i t c h c o m p o n e n t s ............... 2 5 3 .. I d e n t i f y i n g 4 G b S A N S w i t c h e x t e r n a l p o r t s ..........
8.
About t his g uide This guide pr o vi des infor mation about setting up and con fi gu r ing the Br ocade 4Gb SAN S w itc h for HP c-Clas s BladeS y s tem.
Bef or e y ou contac t H P T ec hnical S uppor t Be sur e to ha ve the f ollo w ing inf ormatio n av ailable befor e y ou call HP: • T ec hnical support r egistr ation number (if appli cable) • Pr.
Doc ument con v entions and s y mbols T able 1 D ocument co nv ent ions Convention Element Blue te xt: T able 1 Cro ss-ref er e n ce links a nd e-mail addr esses Blue , underlined text: ht tp://www .
NO TE: Pr ov ides addi tio nal inf ormati on. TIP : Pro vi des helpful hints and shortcu ts. Subsc ripti on ser v ice HP str ongly r ecommends that cus tomers regis ter online using t he Subsc riber’s c hoice w eb site: h ttp://w ww .h p .com /go/e- updates .
1O v e r v i e w Th e B ro ca d e 4 G b SA N Swit ch f o r HP c - C la s s B la d eSys te m ( ref e rre d to h e re a f te r a s th e 4Gb S AN Sw itch) is a Fibr e Channel (FC) s witc h that supports link speeds of u p to 4 Gb/sec.
4Gb S AN S w itc h featur es Th e 4 G b SA N Swi tc h p rovi de s t h e fo ll owi n g f ea t u res : • Fu l ly i n te g ra ted, embedded FC SAN design connects dir ectly t o the HP c -Class BladeS y.
Comp on ent id ent i fi cation Fi g u re 1 and Ta ble 2 identif y the ph ysical components of the 4Gb S AN Sw itch . scale: 3/8" = 1" 21 22 23 0 17 18 19 20 ! 80 -1 0 00 7 4-0 1 R e v .
Po r t s i d e o f t h e 4 G b S A N S w i t c h Fig u re 2 and Ta b l e 3 identify 4G b S AN Sw itch e xternal ports (ports 1 7 through 20, and por ts 2 1 thr ough 0).
4Gb S AN S wit ch r edundancy The HP c-C lass BladeS yst em was engineer ed as a no-single-poi nt-of-f ailure bladed Solut ion. Att r ibutes that con tr ibute to s witc h redundancy include: • Redun.
4Gb S AN S w itch l ic en s in g The 4 Gb SAN Swi tch integrates one of thr ee license opti ons that complement ex isting HP product lines . Some 4Gb SAN S witc h m odels ship with li c enses that place limits on the number of domains that can be used .
ISL t run ki ng g r oups If y our 4Gb S AN Sw itch is li censed for in ters witc h link (ISL) trunking , us e the trunking gr oups av ailable on the sw itch . T h eF Cp o r t sa r en u m b e r e df r o ml e f tt or i g h t ,a n da r ep a r to ft h es a m eI S Lt r u n k i n g gr oup .
Optional har dw ar e kits Ta b l e 4 lists optional har dw are ki ts that support the 4Gb SAN S wit ch . F or additional options , go t ot h eH Pw e bs i t e : h ttp:/ /www .
2 Setu p Thi s chapter pr ov ides the f ollow ing informati on: • Sh ipping ca rton c ontents • Installation and saf et y consider ations • In stall the 4Gb SAN Sw i tch •S e t t h e I P a d d.
scale: 3/8" = 1" 21 2 2 23 0 17 1 8 1 9 20 ! 8 0 - 1 0 0 0 7 4 - 0 1 R e v . C W H 0 4 0 0 0 0 2 1 1 M A C 0 0 0 5 1 E 3 5 A 2 D 6 W W N 1 0 : 0 0 : 0 0 : 0 5 : 1 E : 3 5 : A 2 : D 6 R e s e t b S A N S w i t ch 25202a 3 1 2 Figure 3 Carton c ontents T able 5 identi fi es 4Gb SAN s witch components .
E ach sw itch mus t be assigned a unique Ether net IP addres s during con fi gurati on. Once the defa ult Ethernet IP addr ess on the 4Gb S AN S wit ch has been changed , you may install additi onal 4Gb S AN Sw itches in the enc losur e.
Install the 4Gb S AN S witc h CA UTION: For s witch rev ision level s 0A and 0B only (running F abric OS versions earl ier than 5.2 . 1 b) —D H C P is not supported on th ese models. Do not in stall multiple sw i tc hes at the same time with def ault addresses , as addr ess con fl ict s wi ll o ccu r .
scale: 2/3" = 1" 21 22 23 17 18 19 20 ! Reset 25071a 2 3 1 Figure 4 Rel easing t he ins tallat ion han dle T able 6 Rele ase mechanis m comp onent s Item Description 1 Installation handle in latched positi on 2 Handle latch 3 Installation handle (r eleased) 3.
25319a Figure 5 Installing t he Brocade 4 Gb S AN Switch into an interco nnect bay 4. Pr ess the installati on handle into the latch to lock the Br ocade 4Gb SAN S witc h in place .
Checki ng LE Ds See Fi g u re 6 to locate pow er-on LEDs. V er ify that the LEDs match the indicat ors desc ribed in Ta b l e 7 . scale: 1" = 1" 17 18 19 20 ! Reset 25075a 1 2 3 Fig ure 6 V .
Setting the IP addr ess IMPOR T ANT : The s witc h supports DHCP beginning w ith F abri c OS 5 .2 . 1b fi rmwa re . For switc hes ru nn i ng Fabri c OS 5.2. 1b ( switch rev 0C) or l ater , D H CP is e nabl ed by defa ult , sim plif y ing multiple s witc h installati ons.
Using Ex ternal DHC P T o set the Ethernet IP addr ess using e xternal DHCP: 1. Connect to t he active O A via a web bro wser . 2. Doc ument the DH CP- assig ned ad dress by select ing t he sw i tch fr om th e OA GUI Rac k O ver view wi nd ow .
6. Con fi g ur e the terminal application as f ollows: In a Windo ws env ir onment , t y pe : •B i t s p e r s e c o n d — 9 6 0 0 •D a t a b i t s — 8 •P a r i t y — N o n e •S t o p b i t s — 1 • Flo w control — None In a UNIX en vir onment, type: tip /dev/ttyb –9600 7.
Co n fi gur e the 4Gb S AN S witc h T h e4 G bS A NS w i t c hm u s tb ec o n fi gured t o ensur e correc t oper ation withi n a networ k and fabr ic.
Connec ting to the Command L ine Interf ace Mak e an Ethernet cornnec tion and log int o the 4Gb S AN Sw itch: 1. Connect the w orkstation t o the Ethernet networ k containing the O A. If the O A is not on a network , c onnect dir ectly to the O A/iL O Ethernet port on the activ e OA.
Setting the dat ea n dt i m e Date and time a r e used for logging e vents . 4Gb S AN S wit ch oper ation does not depend on the date and time; a sw itch w ith an incorr ect date and time value w ill functi on properl y . T o set the date a n dt i m eu s i n gt h eC L I : 1.
V er if y ing installed licenses T o determine t he type of li censing included w ith your 4Gb S AN Sw itch , t y pe licenseshow at the command prompt a s in the fol lo wing Ex ample : Ex am ple 1. switch:admin> licenseshow XXXnnXXnXnn XXX: Fabric Watch license Release v5.
Modify ing the FC domain ID (optional) If desir ed, y ou can modify the FC domain ID. T he default FC domain ID is domain 1 . If the 4Gb S AN S witc h is not pow ered on until after it is connected t o the fabr ic and the defa ult FC dom ain ID is alr ea dy in use , the domain ID for the new s witc h is automaticall y r eset to a uni que value .
Disabling and e nabling a s w itch By de fau lt, t h e sw itch is enabled after po wer on and diagno stic s and s wi tch initiali z ation r outines complete .
Using Dynamic P orts On Demand (D P OD) In the past , P o rts On D emand (POD) f unctionality was s tatic. A pre set group of ports were i nd ivid u ally enabled per eac h POD licens e. In contras t, the new DP OD functionality does not r equire a pr ede fi ned assignment o f ports.
Ex ample for Brocade 4/1 2 SAN S witch swd77:admin> licenseport -show 24 ports are available in this switch No POD licenses are installed Dynamic POD meth od is in use 12 port assignments are provi.
NO TE: The DPOD featur e does not consider disabled ports as cand i dates for li c ense assignments. Y ou can pe rsi stentl y disab le an ot herwise v iab le port t o caus e it not t o come online an d pr eser v e a license assig nment for futur e use.
40 Setup.
3 M ana gin g t he 4Gb S AN Sw i t c h Thi s chapter pr ov ides the f ollow ing informati on: • Management features • Maintaining the 4Gb S AN S wit ch •P o w e r i n g o n a n d o f f • Inter.
When running IP o ver FC, the se management tools must be r un on both the F ibr e Channel host and the s wit ch and mu st be supported b y the F ibr e Channel host dr iv er . For a li st of F ib r e Channel hosts supported b y the 4Gb SAN S witc h, contact y our HP repr esentati ve.
T able 9 Connect ing vi a a management stat ion Manage ment station Fir st swi tc h Se c on d swit ch Th ird swi tch Ethernet 19 2 . 16 8 . 1. 0 9 19 2 . 16 8 .1 .10 204. 1 . 1 . 1 1 204 . 1 . 1 . 1 2 F C I P 1 92 . 1 68 . 65.09 1 92. 1 68. 65. 1 0 1 92 .
T o inst all a r eplaceme nt SFP: 1. Mak e sure that the bail is in the unloc ked position . 2. Ori ent the SFP with the appr o pr iate port. See Fi g u re 7 and Ta b l e 1 0 . scale: 3/8" = 1" 21 22 23 0 17 18 19 20 ! 80 -1 0 0 07 4 -01 R e v .
CA UTION: Diagnostic tests can temporar ily lock the tr an smit and r ec ei ve speed of the links during diagnostic t e sting . F or information about speci fi c diagnostic te sts, r efer to the latest v ersion of the HP St orage W orks Fa bri c OS administr ator guide or t ype help f ollowed b y the nam e of the diagnosti c test.
LED indicators A l l4 G bS A NS w i t c hL E D sa r el o c a t e do nt h ep o r ts i d e . S e e Fi g u re 8 and Ta b l e 1 1 . scale: 1" = 1" 17 18 19 20 ! Reset 25075a 1 2 3 Figure 8 Ident.
LED patter ns Ta b l e 1 2 and Ta b l e 1 3 summari ze LED locati on, color , and meaning, as well as an y r ecommended u ser r es ponse. Module status LED patterns The s ys tem and pow er LED patterns ar e show n in Ta b l e 1 2 .
Po r t l i n k s t a t u sL E Dp a t t e r n s Ta b l e 1 3 show s the LED loc ation , color , mea ning , and recommended action . T a ble 1 3 P or t link sta tus LED pat terns LED name, Loc ati on LED color Status of hardware Recommend ed a cti on No light No light or signal carr ier (tr anscei ver or cable) detected .
P or t link speed LED p atter ns T h ef o l l o w i n gi n d i c a t e sp o r ts p e e d s : • No ligh t — 1Gbps • Gr een — 2 Gbps • Amb er — 4 G bps • Show s Green/Amb er — Inv alid P OS T and boot spec i fi catio ns PO ST is a s yst em check that is perf ormed each time the sw itch is po wer ed on, r e booted , or r eset .
• The 4Gb S AN Sw itch obtains a domain ID and assigns port addr esses • Unicast routin g tables co nstructed • Normal port operati on enabled Interpr eting PO S T results T o determine w hether POS T completed successfull y and whether an y err ors wer e dete cted: 1.
F irm w a r e update T o achie ve best perf ormance , HP recommends r unning the latest fi rmware rel eas e. Obtain the most c urr ent Fabr ic OS fi rmware, co n fi gurati on fi les and MI B fi les that support this sw itch f r om the follo wing HP web sit e: h ttp:/ /www .
About the r eset button The Br o cade 4Gb SAN S witc h integ r ates a Reset button, as sho wn in Fig u re 9 .T h e Res et b ut ton i s a smal l , recessed m ic ro–switch that is acc essed by inser ting a pin (o r obj e c t of sim ilar si z e) in the small hole.
R eplac ing a faulty 4Gb S AN S w itch T o replace a faulty s witc h in the c-Class enc losure: IMPORT A NT : F or supplemental info rmati on on any of these steps re fer to th e latest HP St or age W or ks F abr ic OS administr ator guide and Fa b - r ic OS A dv anced W eb T ools adminis tra tor gui de av ailable at: h ttp://w w w .
NO TE: If using the CL I, type switchDisable at the pr ompt. Ref er to the F abri c OS command ref erence guide for a dd i tio n al c om m an d i nfo rma ti on. 10 . Continue w ith the sw itch con fi guration . Enter the appr opriat e information w hen pr ompted.
A Regula tor y com pli ance an d saf ety R egulator y compli ance F ederal C ommunications Commission notice f or Class A equ ipment This equipment has been tested and f ound to comply w ith the limits for a C lass A digital d e v i c e , p u r s u a n tt oP a r t1 5o ft h eF C CR u l e s .
Modi fi cations The FCC requir es the user to be noti fi ed that any c hanges or modi fi cations made to this dev ice that ar e not expr essly appr ov ed b y Hew lett-P a c kar d Compan y my v oid the user’s author it y to oper ate the equipment.
Cer ti fi cation and c lassi fi cati on infor mation This pr oduct contains a laser internal to the fi ber optic (F O) tr anscei ver f or connectio n to the F ibre Channel communi cations port .
Eu ro p e a n U n io n n o t i c e Pr oducts beari ng the CE Marking compl y with both the EMC Dir ectiv e (89/3 36/EE C) and the L ow V ol t a g eD i r e c t i v e( 7 3 / 2 3 / E E C )i s s u e db yt.
Japanes e notice Ko r e a n n o t i c e s Brocade 4Gb S A N S witch f or HP c-Class BladeS ystem 59.
Safet y Batter y r eplac ement notice Y our s wit ch is equipped with a li thium manganese dio xide , a vanadium pento xide , or an alkaline int ernal battery or battery pack. T her e is a danger of explosi on and r isk of personal inj ur y if the battery is incorr ectly r eplaced or mistreated .
T ai wan battery r ecy cling noti ce The T aiw an EP A requ ir es dry ba ttery manufac turing or importing fi rm s in ac co rda nc e w ith Article 1 5 of the W aste Disposal A ct to indicate the r ecov er y marks on the batteri es used in sales , giva way , or pr om otion .
Wa s t e E l e c t r i c a l a n d El ect r on ic E qu ip ment d irecti ve English notice Disposal of w aste equipme nt b y users in priv ate households in th e European Union This s ymbol on the pr oduct or on its pac k aging indicates that this produc t must not be disposed o f with y our other household w aste.
Cz echo slov aki an notice Likvidace z a ř í z e n ís o u k r o m ý m id o m á c í m iu ž i v a t e l ivE v r o p s k éu n i i T ento s ymbol na pr oduktu nebo bailní ozna č uje výr obek, kte rý nesmí být vyhoz en spolu s os tatním domácím odpadem.
Fi n n i s h n o t i c e Laitteiden hävittäminen kotitalouksissa Eur oopan unionin alueella Jos tuottee ssa tai s en pakk auksessa on tämä mer kki, tuotetta ei saa häv ittää k otitalousjätteiden muk ana. Tällöin hävitettävä laite on toimitettav a sähk ölaittei den ja elektr onist en lait teiden kierrät yspisteesee n.
Ger man noti ce Entsorgung v on Altgeräten aus privaten Haushalten in der EU Das S ymb ol auf dem Pr odukt oder seiner V erpac kung we ist darauf hin , dass das Pr odukt ni cht über den normalen Hausmüll entsor gt wer den darf.
Hu n ga rian no tic e Készülék ek m agánháztartásban történ ő selejtez ése az Európai Unió terül etén A kés züléken , illetve a kés zülék csomagolásán látható a zo nos s zimb ólum annak jelzésér e sz olgál, hog y a készülék a sele jtezés során a z egyéb háztartási hulladéktól eltér ő módon kezel e nd ő .
La t vian n ot ice Nolietotu iek ā rtu i zn ī cin ā šanas noteik umi lietot ā jiem Eiropas Savien ī bas pri v ā taj ā s m ā jsaimniec ī b ā s Š ā ds simbols u zi z s t r ā d ā ju ma va i u z t ā iesa i ņ ojum a nor ā da, k a šo izstr ā d ā jumu nedr ī k s ti z m e s tk o p ā ar citie m sadz ī ves atkr itumiem.
Po l i s h n o t i c e Po z b y w a n i e s i ę zu ż ytego s prz ę tu prz ez u ż ytk ow nikó w w prywa tn ych gos podars twach domo wych w Unii Eur opejskie j T en s ymbol na pr o duk ci e lub jego opak ow aniu oznacz a, ż ep r o d u k t un i ew o l n o wy rzuca ć do z wyk ł ych p oje mn ik ó w na ś miec i.
S lova k ia n n ot i ce Likvidácia vyradených zariadení v domácnostiac h v Európskej únii S ymbol na výrobk u alebo jeho bailní ozna č uje , že daný výrobok sa nesmie likvidova ť s domovým odpadom.
Spa n is h not ice Eliminación d e residuos de equipos eléc tricos y electrónicos po r parte de usuarios partic ulares en la Unión Europea Est e sím bolo en el pr oducto o en su env ase indica que no debe eliminarse j unto con los desper dic ios gener ales de la c as a.
B E lect r ost atic d ischa rge This a ppendix pr ov ides the f ollo wing inf ormation: • How to pr ev ent electr ostatic dis char ge • Grounding methods Ho w to pr ev ent electr ost a ti c dischar ge T o prev ent dam age to the s ystem , y ou must follo w cer tain pr ecautions when setting up the s y stem or handling parts.
If y ou do not hav e an y of the suggested equipment f or proper gr ounding, hav e an HP authori zed r eseller install the part. NO TE: F or more inf ormati on on static electr icity , or for assistance with pr oduct installation , cont act y our HP author iz ed res eller .
C S AN S witc h tec hni cal spe ci fi cations This a ppendix pr ov ides the f ollo wing inf ormation: • General spec i fi cations • W eight and ph ysi cal dimensions • Env ir onmental requir e.
Gene r al spec i fi cations Ta b l e 1 5 lists gener al speci fi cations f or the 4 Gb S AN Sw itch for HP c-Class BladeS ystem. T a ble 1 5 G eneral s peci fi ca tions Speci fi cation Description Con fi gur able p ort types F _ Po r t , F L _ Po r t , a n d E _ Po r t Media ty pes Small Form-F actor P luggable (SFP) laser .
Speci fi cation Description Modes of oper a ti on FC Class 2 , Class 3, and Class F Max imum fr ame siz e 2 1 1 2-byte P or t-to-port latency 1 .2 μ sec. with no cont ention, cut-thr ough routing at 4Gb . Latency inc rease s as input por t speed incr eases and b ecomes dispar ate fr om output port s peed.
E nvi ro n m e n t a l re q u i re m e n t s T o ensure pr oper operation , the s wi tch mus t not be subjected to en vir onm ental conditi ons be yon d tho se f or which it was tested. The r ang es speci fi ed in T able 1 7 list the acceptable env ironment f or both operating and non-oper ating conditions.
Gl o ssa ry Thi s g los sar y d e fi nes terms used in this guide or r elated to this product . It is not a compr ehensiv e glossar y of computer t erms. AL_P A Arb itr ated loop ph ysi ca l addr ess. A unique 8-b it value assigned dur ing loop initiali z ation to a port in an arb itrated loop .
connects to the P CI bus of the pr o cess or . Not visible w ithin the pro cessor’s memory space . con fi guration The way a syste m is s et u p . M ay refe r to h ardware o r sof twa re: • Hard war e: The number , type , and arr angement of components that mak e up a s ys tem or networ k.
enabled zone con- fi guration The cur rent ly en ab le d co n fi guration of z ones. Only one con fi gur ation can be enabled at a time . See also zo n e , zo n e con fi gur ation . end-to-end fl ow control A fac ilit y that go ver ns fl ow o f cl a ss 1 a n d cl a ss 2 f ra m es between N_P orts.
FL_P ort Fabr ic loop port . A port that is able to tr ansmit under fabr ic pr otocol and has ar bitrat ed loop capabiliti es. Can also be used t o connect an NL_P ort to a sw itch . See a lso U_P ort . frame The F ibre Channel struc tur e used to tr ansmit data bet w een ports.
K28.5 A spec ial 1 0-bit char acter that indi cates the beginning of a transmis sion wor d that perfor ms FC contr ol and signaling fun ct ion s. Th e fi rst se ven bits ar e the comm on pattern . ker ne l fl ash Flash (temp orary) m emor y con nected to the periph eral bus of the pro cesso r and visible w ithin the proces sor’s memory space .
LW L Long wa velength . A type of fi ber optic cabling that is based on 1 300 mm lasers and supports link speeds up to 2 Gb/s. May also r efer to the type o f transcei ver . See also SW L . master port T he por t that det ermines the r outing paths for all tr af fi c fl owi n g thr ough a trunking gr oup .
phantom address An AL_P A value assi gned to a dev ice that is not ph ysi cally in the loop. Also know n as phantom AL _P A . Se e also AL_P A , phantom de vice . phantom dev ice A dev ice that is not ph ysi cally in an arbitr ated loop but is logicall y included thr ough the use of a phantom addres s.
RAI D Redundant Ar ra y of Independent Disks . A collection of disk dri ve s that appear as a single vol ume to the serv er and ar e fault t oler ant thr ou gh mirr oring or par it y c hecking . request r ate T h e r a t ea tw h i c hr e q u e s t sa r r i v ea tas e r v i c i n ge n t i t y .
swi tc h p or t A port on a sw itch . Sw itch ports can b e E_P orts, F_P or ts, or FL_P orts. SW L Short wa velength . A t y pe of fi ber opti c cabling that is based on 8 50 mm las ers and supports link speeds up t o 2 Gb/s. May also r efer to the ty pe of tr a nsce i ver .
within the s ame z one have acces s permissi on to others in the z o n e ,b u ta r en o tv i s i b l et oa n y o u t s i d et h ez o n e . See also de fi ned z one con fi guration , enabled z one con fi guration . zon e con fi guration As p e c i fi ed set of z ones.
In de x A adv anc ed perfor mance m onitor ing ,1 9 adv anc ed w eb tools ,4 2 adv anced z oning ,1 9 audience ,9 B boot ,4 9 boot spec i fi cations ,4 9 C command line interf ace ,4 2 conv entions d.
O optional ,2 0 o p ti on a l h a rdwa re k i t s ,2 0 P port con fi gur able types ,1 4 speed ,1 4 port LED pat ter ns ,4 8 POST ,4 9 POST r e su lts ,5 0 POST spe c i fi ca tions ,4 9 Po w e r Pa .
An important point after buying a device HP (Hewlett-Packard) HP c-Class BladeSystem (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought HP (Hewlett-Packard) HP c-Class BladeSystem yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data HP (Hewlett-Packard) HP c-Class BladeSystem - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, HP (Hewlett-Packard) HP c-Class BladeSystem you will learn all the available features of the product, as well as information on its operation. The information that you get HP (Hewlett-Packard) HP c-Class BladeSystem will certainly help you make a decision on the purchase.
If you already are a holder of HP (Hewlett-Packard) HP c-Class BladeSystem, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime HP (Hewlett-Packard) HP c-Class BladeSystem.
However, one of the most important roles played by the user manual is to help in solving problems with HP (Hewlett-Packard) HP c-Class BladeSystem. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device HP (Hewlett-Packard) HP c-Class BladeSystem along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
