RAID֣һӲRAIDһRAID[3]
ӲRAID[4]
ӲRAIDٶȿ졢ȶԺãЧṩˮƽӲ̿Ժ

  RAID 0ʾͼ
1RAID 0
RAID 0ֵRAIDģʽData StrippingݷRAID 0齨򵥵һʽֻҪ2ϵӲ̼ɣɱ̵ͣܺRAID 0ûṩ޸ʵֳɱ͵ġ
RAID 0򵥵ʵַʽǰNͬӲӲʽܴͨ̿òϵͳеĴķʽһ𴴽һľʹед뵽ӲУŵǿӲ̵ʹ80GBӲ齨RAID 0ģʽôͻ240GBٶȷ棬һӲ̵ٶȫͬȱκһӲֹ̳ϣϵͳܵƻɿԽΪһӲ̵1/N
Ϊ˽һ⣬һRAID 0һģʽNӲѡĴԭǽԭ˳дݱɢеĿӲͬʱждĿӲ̵Ĳвʹͬһʱڴ̶дٶ4
ڴʱѡĴСǳҪ󣬿һϵĴռͿ󲿷ֵI/OʹݵĶдȻֻһӲϣֵܳķӳвơһ棬СκI/OָĶдռùĿߴˣڴʱӦʵӦõҪصѡĴС
Ȼ԰ݾȵķ䵽еĴϽждǰеӲ̶ӵһϵĻܻǱڵΣΪƵждʱʹߵĸ ءΪ˱⣬ûʹö̿ýΪÿһӲ̶䱸һרŵĴ̿
ȻRAID 0ṩĿռ͸õܣϵͳǷǳɿģֹϣ޷κβȡԣRAID 0һֻЩݰȫҪ󲻸ߵ²űʹá
2RAID 1
RA
  RAID 1ʾͼ
ID 1Ϊ̾ԭǰһ̵ݾһϣҲ˵дһ̵ͬʱһõĴɾļڲӰ޶ȵı֤ϵͳĿɿԺͿ޸ϣֻҪϵͳκһԾһ̿ʹãһӲ̳ʱϵͳ,һӲʧЧʱϵͳԸӲ̣תʹʣľ̶дݣ߱ܺõĴȻ԰ȫǳɱҲӣΪ50%Ŀ80GBӲõĴ̿ռΪ160GB⣬Ӳ̹ϵRAIDϵͳٿɿӦʱĸ𻵵Ӳ̣ʣľҲ⣬ôϵͳͻ̺ԭݻҪܳʱͬݵķʲܵӰ죬ֻʱϵͳ½ˣRAID 1ڱؼԵҪݵĳϡ
RAID 1Ҫͨζдʵִ̾Դ̿ĸҲ൱ҪƵдݵĻСΪ˱ƿʹö̿ԵúбҪ
3RAID0+1
RA
  RAID0+1ʾͼ
ID 0+1ǱԿRAID0RAID1Ľ塣ǵʹRAID 1ҲƵʹRAID 0⣬ͬһʱֻһдݣܳеԴΪ˽һ⣬ǿڴ̾нΪ÷ʽۺ˴;ƣԱΪRAID 0+1RAID0RAID1ݳֲڶ⣬ỵ̶̈ṩȫһ´̹ϣӰݿԣпٶ/дRAID0+1Ҫڴ̾н4Ӳ̡
4RAID: LSI MegaRAIDNytroSyncro
MegaRAIDNytroSyncroLSI RAIDƳĽһֱڴ¡
LSI MegaRAIDҪλǱݣͨܡ߿ɿRAIDܣΪṩ߼ıLSI MegaRAIDҵпڽԱ
LSI NytroҪλݼ٣õ׷漼I/OٶȡLSI NytroϵУLSI Nytro WarpDriveٿLSI Nytro XD Ӧüٴ洢LSI Nytro MegaRAID ӦüٿNytro MegaRAIDҪDASNytro WarpDriveٿҪSANNASNytro XDNytro WarpDriveٿNytro XD ܸٻֹɡ
LSI SyncroĶλҪݹϵͳĿԡչԣͳɱ
LSIͨMegaRAIDṩĿɿԱ;ͨNytroʵּ;ͨSyncroͻƿü۸Ĵ洢Դģչҽһ߿ɿԡ
5RAID2У
ӸϽRAID 2 ͬRAID 3ƣ ߶ǽ黯ֲڲͬӲϣ 鵥λΪλֽڡȻRAID 2 ʹһı뼼ṩ鼰ֱָ뼼Ҫ̴ż鼰ָϢʹRAID 2ʵʩӡ,ҵкʹáͼߵĸݵĸλһݲͬλõĺУԱһϣͼںص㣬ݷ½УԱ֤ȷݴ൱ߣϣﵽȽٶȣ߱УECCӲ̣ڿ˵ֱRAID345Ҫ򵥡ûѵͣҲһҪú룬ҪĴۡݵٶȡ
6 RAID3żУĲд
УRAID2ֻܾͬܲʱһδһ߶ȡдٶȡУдʱһϡҪʵʱûҪϵдʶܸߣΪУλȽ٣˼ʱԶԱȽ١ʵRAIDƽʮѵģʵҲǺסҪͼΣҪʱȽϸߵĳϡͬRAID 2RAID 3ʹõ̴żУϢһʧЧż̼̿²ݡ żʧЧӰʹáRAID 3ڴݿṩܺõĴʣݣż̻Ϊдƿ
7RAID4żУĶ̽ṹ
RAID4RAID3󣬲ͬǣݵķǰݿеģҲǰ̽еģÿһ̡ͼϿôRAID3һһRAID4һһصRAID3Ҳͦ󣬲ʧָܻʱѶȿҪRAID3öˣѶҲҪ࣬ҷݵЧʲôá
8RAID5ֲʽżУĶ̽ṹ
ʾͼϿԿżУдϣеp00żУֵ˼ҲͬRAID5ĶЧʺܸߣдЧһ㣬ʽļЧʲΪżУڲͬĴϣ˿ɿԡݴĲԽãҿҲ൱ѡRAID 3 RAID 5ȣҪRAID 3ÿһݴ䣬漰е̡RAID 5˵󲿷ݴֻһ̲ɽввRAID 5СдʧÿһдĸʵʵĶ/дζɵݼżϢдµݼżϢ
9RAID6ֲַ洢żУĶ̽ṹ
ֺܳͼ̻Ϊʲôעp00żУֵpAݿAżУֵǶRAID5չҪҪݾԲܳĳϡȻˣ˵ڶżУֵҪN+2̣ͬʱԿƱʮָӣдٶҲãڼżУֵ֤ȷѵʱȽ϶࣬˲ĸء˾ûõֶ
10RAID7Żĸݴʹ̽ṹ
RAID7еI/O;ͬеģԷֱƣϵͳĲԣϵͳݵٶȣÿ̶иٻ洢ʵʱϵͳʹκʵʱоƬﵽͬʵʱϵͳҪʹSNMPЭйͼӣԶУָĴŵЧʡӶ̨Ϊٻ洢ûϵͳʱʱ伸ӽ0ڲòнṹݷЧʴߡҪעһٻ洢бףΪһϵͳϵ磬ڸٻ洢ڵݾͻȫʧҪUPSһȻˣôĶ۸Ҳǳ
11RAID10߿ɿЧ̽ṹ
ֽṹ޷һṹһṹΪֽṹȱ㣬˿໥䣬ﵽȸЧָٻԵĿġҿԽֽṹŵȱ½ṹ½ṹļ۸ߣԲáҪײ󣬵ҪٶȺͲƵݿС
12RAID53Чݴʹ̽ṹ
ԽĽṹǶǰṹһظãֽṹRAID3ʹṹͳһٶȱȽϿ죬Ҳݴܡ۸ʮָߣʵ֡Ϊеݱ뾭Ͱλ洢ַڿǵЧʵ£ҪЩͬǲס
RAID
һ̬
ڰװWindows 2003 ServerʱӲ̽ԶʼΪ̡ǲڻ̷д¾
RAID-5飬ֻڶ̬ϴƵĴáҲ˵봴RAID-0RAID-1RAID-5ͱʹö̡̬Windows 2003 Serverװɺ󣬿ʹ򵼽תΪ̡̬
ڽһ̴ӻתΪ̬̺󣬴ϰĽǾǴ̷еÿӲϵһ߼֣Ϊÿָһĸ߹ҽӵ㡣Ҫעֻڶ̬ϴ̬¼ڻ̵ص㣺
չڽӵĿռ䣬ЩռκοõĴϡ
ÿϿԴľĿûκơ
Windows 2003̬Ϣ洢ڴϣǴ洢עлλáͬʱЩϢܱ׼ȷظ¡Windows 2003ЩϢƵ̬Сˣ̵𻵽Ӱ쵽ϵݡ
һӲ̼ȿǻĴ̣ҲǶ̬Ĵ̣ܶ߼ǣΪͬһϲ϶ִ洢͡ǣжӲ̣ͿԽӲ̷ֱΪĻ̬ġ
1ӻ̬̣
εʼ->г->ߡ->ѡʾڡ
̨չ洢->̹ѡʾаװд̡
һҪΪ̵̬Ӳ̣ڵĿݲ˵ѡ̡̬ѡʾ̡̬Ի
ѡҪĴ̣Ȼ󵥻ȷťʾҪĴ̡ԻҪûҪΪ̵̬Ӳ̽ȷϡԭܼ򵥣ΪһǲġҲ˵̿Ϊ̬̣̬ȴָܻΪ̡
ݵťʾ̹ʾϵͳٴҪûԴȷϡôΪ̬̺Windows98/MeȲϵͳٴӸô
޵ǡťʾ̡ʾҪϵļϵͳǿж£ҪûԸòһȷϡ
ߵǡťϵͳʼ̵̡ɺ󣬽ʾȷϡ򣬵ȷťɴ̵̡
̬ʱӦע¼⣺
ԹԱԱݵ¼ɸù̡ӣҲֹɴ˲衣
̬̺󣬾Ҳ̬ܽĻصʱΩһķǣɾϵж̬ȻʹáԭΪ̡
֮ǰӦùرЩеĳ
Ϊ֤ɹκҪĴ̶ٰ1MBδռ䡣ڴϴʱ̹߽Զռ䣬ǴϵͳķĴϿܾûռ䡣
С512ֽڵĴ̣ܴӻΪ̡̬
һɣ̬̾Ͳܰ߼ҲܱWindows 2003ϵͳʡ
2´Ϊ̬
ټװӲ̺󣬵һηʡеġ̹ʱԶСдǩ򵼡ڡ
ڵһťʾѡҪдǩĴ̡ҳ棬ڸбѡҪдǩĴ̡Ҫעǣڰװϵͳǰǩ
۵һťʾѡҪĴ̡ҳ棬ѡҪΪ̵̬Ĵ̡
ܵһťʾдǩ򵼡ҳ棬ҪȷǩĴ̡κβףɵһťز½á
ݵɡť̬ɡ
ʵRAID
RAIDҲڶϵͳвʵ֡ʵRAID-1ҪӵӲ̣ʵRAID-5ҪӵӲ̡ͨ£ϵͳ
ڴ̲RAID-1ڴ̲RAID-5
1
ټ򵥾
򵥾ɵϵĴ̿ռɣɴϵĵһͬϵĶɡͬһչ򵥾Ѽ򵥾չ̡չ򵥾þǿ
ֻڶ̬ϴ򵥾򵥾ܰ߼ҲMS-DOS Windows 2003WindowsϵͳʡеļWindows98汾ôӦôǶ̬
ڴ򵥾ͨʣδռչҪչһ򵥾þʹWindows 2003õNTFS汾ʽͬʱչΪǰļ򵥾Ҳɽ򵥾չͬһ̵С򵥾չһʱΪһչ֮󣬲ɾ㲻ܽκβɾҪעǿǾ

Խ߸(Ϊ32Ӳ)ĿռΪһдʱݱָΪ64KBĿ飬طֲедϡһ߶̵ļϡЧߴ̵ĶȡܣṩݴܣκһӲ̵𻵶ᵼȫݵĶʧRAID-0
ۿԽ
ÿԽҲԽ߸(Ϊ 32Ӳ)Ŀ̿ռΪһͬǣдԽʱһϵĿಿ֣Ȼٽдһ̣ơȻÿԽԿӾĿǿԽȲ߶ԴݵĶȡܣҲṩκݴܡԽеĳֹ̳ʱ洢ڸôϵݽȫʧ
ܾ
þRAID-1ԽûͬͬʱƵСеһֹ̳ϣȻôϵݽ޷ʹãϵͳܹʹδ𻵶ԼתĴ̽ݵĶдӶͨһϱȫĸϵܽʹϵӰ졣ɴ˿ɼĴ̿ռֻ50%(ÿԱ)ԾĳɱԽϸߡҪһʹһϵĿÿռ䡣̬еκξ(ϵͳ)ʹͬĻͬĿϴСͬһʹôСͺź쳧ҶͬĴԱܲļԴ
ԴǿܣΪݴͬʱ̳ԱͬʱȡݣԶȡݵٶȻӡȻݴͬʱԱдݣдܻн͡ɰκη(ϵͳ)ǾеӲ̶Windows 2003̡̬
RAID-5
RAID-5УWindows 2003ͨþÿӲ̷żУϢʵݴĳӲֹ̳ϣWindows 2003ӲϵݺżУϢؽϵӲϵݡ
ҪżУϢRAID-5ϵдҪȾϵдһЩǣRAID-5ȾṩõĶܡеԭܼ򵥣Windows 2003ԴӶͬʱȡݡ뾵RAID-5Լ۱ȽϸߣRAID-5еӲԽ࣬ݴĳɱԽ͡
༭
淶

RAIDҪRAID 0RAID 50淶ǵĲصͬĹ淶¼֣
  
RAID 0RAID 0λֽΪλָݣж/дڶϣ˾кܸߵݴʣû࣬˲RAIDṹRAID 0ֻǵܣûΪݵĿɿṩ֤еһʧЧӰ쵽ݡˣRAID 0ӦݰȫҪߵĳϡ

  
RAID 1ͨݾʵ࣬ڳɶԵĶϲΪݵݡԭʼݷæʱֱӴӾ񿽱жȡݣRAID 1߶ȡܡRAID 1Ǵеλɱߵģṩ˺ܸߵݰȫԺͿԡһʧЧʱϵͳԶл϶дҪʧЧݡ
[5]
RAID 01/10:ϷΪRAID 10RAID 01ʵǽRAID 0RAID 1׼ϵĲλֽΪλָݲҲж/д̵ͬʱΪÿһ̾
  
ࡣŵͬʱӵRAID 0ĳٶȺRAID 1ݸ߿ɿԣCPUռͬҲߣҴ̵ʱȽϵ͡RAID 1+0ȾٷݣٽӲ̷Ϊ飬ΪRAID 0ϣȻΪRAID 1RAID 0+1ǸRAID 1+0ĳ෴ȷٽݾ䵽Ӳ̡еӲ̷Ϊ飬RAID 1ϣӲ̸ΪRAID 0ϣRAID 0+1RAID 1+0ŸĶдٶȡɿϣRAID 1+0һӲӲ̻RAID 0+1 ֻҪһӲͬRAID 0һֻӲֹֻͣʣӲɿԽϵ͡ˣRAID 10ԶRAID 01ã󲿷֧RAID 0/1/5/10֧RAID 01
RAID 2黯طֲڲͬӲϣ鵥λΪλֽڣʹóΪƽ루룩ı뼼ṩ鼰ָ
RAID 3ͬRAID 2ǳƣǽ黯ֲڲͬӲϣRAID 3ʹü򵥵żУ飬õ̴żУϢһʧЧż̼̿
  
²ݣżʧЧӰʹáRAID 3ڴݿṩܺõĴʣ˵ż̻Ϊдƿ
RAID 4RAID 4ͬҲ黯ֲڲͬĴϣ鵥λΪ¼RAID 4ʹһΪżУ̣ÿдҪẓ̇ʱżУ̻ΪдƿRAID 4ҵҲʹá
  
RAID 5RAID 5ָẓ̇дϽشȡݼżУϢRAID 5ϣ/дָͬʱ豸вṩ˸ߵRAID 5ʺСݿдݡRAID 3RAID 5ȣҪRAID 3ÿһݴ漰е̣RAID 5˵󲿷ݴֻһ̲ɽввRAID 5СдʧÿһдĸʵʵĶ/дζɵݼżϢдµݼżϢ
RAID 6RAID 5ȣRAID 6˵ڶżУϢ顣żϵͳʹòͬ㷨ݵĿɿԷǳߣʹͬʱʧЧҲӰݵʹáRAID 6ҪżУϢĴ̿ռ䣬RAID 5иġдʧˡдܡǳϲܺ͸ӵʵʩʽʹRAID 6ٵõʵӦá
RAID 7һµRAID׼ܻʵʱϵͳڴ洢ߣȫУռCPUԴRAID 7Կһִ洢Storage ComputerRAID׼𡣳ϵĸֱ׼1ǿRAID 0+1϶RAID淶RAIDУRAID 5+3RAID 53һӦýΪ㷺ʽûһͨôøӷҪĴ̴洢ϵͳ
RAID 5E(RAID 5 Enhancement): RAID 5ERAID 5ϵĸĽRAID 5ƣݵУϢȷֲڸӲϣǣÿӲ϶һδʹõĿռ䣬ⲿֿռûнӲֹ̳ϡRAID 5ERAID 5һȱ̺࣬ʵRAID 5EǰݷֲеӲϣܻRAID5 һȱҪáһӲֹ̳ʱйӲϵݻᱻѹӲδʹõĿռ䣬߼̱RAID 5
RAID 5EE: RAID 5EȣRAID 5EEݷֲЧʣÿӲ̵һֿռ䱻ֲọ̇̄еһ֣һӲֹ̳ʱؽٶȻ졣
RAID 50RAID50RAID5RAID0ĽϡRAID5ӴÿϽаżϢڵݵİ롣ÿRAID5ӴҪӲ̡RAID50߱ߵݴΪĳһֹ̳ϣݶʧΪżλֲRAID5Ӵϣؽٶкܴߡƣߵݴ߱ݶȡʵǱҪעǣ̹ϻӰϺؽϢʱȾҪ