HP SureStore E Disk Array FC60 Service Manual (A5277A)

'LVN$UUD\+LJK$YDLODELOLW\)HDWXUHV 61
Product Description
XQOLNHWKHVRIWZDUHPLUURULQJLQZKLFKWKHKRVWRSHUDWLQJV\VWHPVRIWZDUHIRUH[DPSOH
/90V\QFKURQL]HVWKHGLVNLPDJHV
'LVNPLUURULQJLVXVHGE\5$,'DQG5$,'/81V$5$,'/81FRQVLVWVRIH[DFWO\
WZRGLVNVDSULPDU\GLVNDQGDPLUURUGLVN$5$,'/81FRQVLVWVRIDQHYHQQXPEHURI
GLVNVKDOIRIZKLFKDUHSULPDU\GLVNVDQGWKHRWKHUKDOIDUHPLUURUGLVNV,IDGLVNIDLOVRU
EHFRPHVLQDFFHVVLEOHWKHUHPDLQLQJGLVNRIWKHPLUURUHGSDLUSURYLGHVXQLQWHUUXSWHGGDWD
DFFHVV$IWHUDIDLOHGGLVNLVUHSODFHGWKHGLVNDUUD\DXWRPDWLFDOO\UHEXLOGVDFRS\RIWKH
GDWDIURPLWVFRPSDQLRQGLVN7RSURWHFWPLUURUHGGDWDIURPDFKDQQHORULQWHUQDOEXV
IDLOXUHHDFKGLVNLQWKH/81VKRXOGEHLQDGLIIHUHQWHQFORVXUH
'DWD3DULW\
'DWDSDULW\LVDVHFRQGWHFKQLTXHXVHGWRDFKLHYHGDWDUHGXQGDQF\,IDGLVNIDLOVRU
EHFRPHVLQDFFHVVLEOHWKHSDULW\GDWDFDQEHFRPELQHGZLWKGDWDRQWKHUHPDLQLQJGLVNVLQ
WKH/81WRUHFRQVWUXFWWKHGDWDRQWKHIDLOHGGLVN'DWDSDULW\LVXVHGIRU5$,'DQG5$,'
/81V
7RHQVXUHKLJKDYDLODELOLW\HDFKGLVNLQWKH/81VKRXOGEHLQDVHSDUDWHHQFORVXUH3DULW\
FDQQRWEHXVHGWRUHFRQVWUXFWGDWDLIPRUHWKDQRQHGLVNLQWKH/81LVXQDYDLODEOH
3DULW\LVFDOFXODWHGRQHDFKZULWH,2E\GRLQJDVHULDOELQDU\H[FOXVLYH25;25RIWKH
GDWDVHJPHQWVLQWKHVWULSHZULWWHQWRWKHGDWDGLVNVLQWKH/817KHH[FOXVLYH25
DOJRULWKPUHTXLUHVDQHYHQQXPEHURIELQDU\VWRFUHDWHDUHVXOWRI
)LJXUHLOOXVWUDWHVWKHSURFHVVIRUFDOFXODWLQJSDULW\RQDILYHGLVN/817KHGDWDZULWWHQ
RQWKHILUVWGLVNLV§;25ªG¨ZLWKWKHGDWDZULWWHQRQWKHVHFRQGGLVN7KHUHVXOWLV§;25ªG¨
ZLWKWKHGDWDRQWKHWKLUGGLVNZKLFKLV§;25ªG¨ZLWKWKHGDWDRQWKHIRXUWKGLVN7KH
UHVXOWZKLFKLVWKHSDULW\LVZULWWHQWRWKHILIWKGLVN,IDQ\ELWFKDQJHVVWDWHWKHSDULW\DOVR
FKDQJHVWRPDLQWDLQDUHVXOWRI