HP A3550A User Manual - A3661-90001 - Page 82
RAID-3 Group Parallel Access Array, RAID-1/0 Group
View all HP A3550A manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 82 highlights
RAID-3 Group (Parallel Access Array) RAID-1/0 Group 1-40 Planning Disk Unit Configurations
1-40
Planning Disk Unit Configurations
Å
’DWDEDVH´UHSRVLWRULHV´RU´GDWDEDVH´VHUYHUV´XVH´D´QRUPDO´RU´OHVV¸WKDQ¸QRUPDO´SHUFHQWDJH´RI´ZULWH´
RSHUDWLRQVÄ´WKDW´LV»´ZULWH´RSHUDWLRQV´DUH´¶¶Ë´RU´OHVV´RI´DOO´,Ç2´RSHUDWLRQVµ
Å
0XOWL¸WDVNLQJ´DSSOLFDWLRQV´UHTXLUH´D´ODUJH´KLVWRU\´GDWDEDVH´ZLWK´D´KLJK´UHDG´UDWHµ
Å
7UDQVDFWLRQ´SURFHVVLQJ´LV´UHTXLUHGµ
:ULWH´FDFKLQJ´FDQ´VLJQLILFDQWO\´LPSURYH´WKH´ZULWH´SHUIRUPDQFH´RI´D´5$,’¸¿´JURXSµ
RAID-3 Group (Parallel Access Array)
$´5$,’¸¶´JURXS´LV´UHFRPPHQGHG´IRU´DSSOLFDWLRQV´ZKHUHÃ
Å
$´VLQJOH¸WDVN´DSSOLFDWLRQ´XVHV´ODUJH´,Ç2´WUDQVIHUV´ÁJUHDWHU´WKDQ´·¾´.%´DOLJQHG´WR´VWDUW´DW´D´GLVN´
DGGUHVV´WKDW´LV´D´PXOWLSOH´RI´²´.%´IURP´WKH´EHJLQQLQJ´RI´WKH´ORJLFDO´GLVN´ÁWR´DYRLG´WKH´H[WUD´ZULWH´
DVVRFLDWHG´ZLWK´5$,’¸¿Âµ
Å
’DWD´DYDLODELOLW\´LV´YHU\´LPSRUWDQWµ
Å
/DUJH´YROXPHV´RI´GDWD´DUH´VWRUHGµ
RAID-1/0 Group
$´5$,’¸±Ç¹´JURXS´SURYLGHV´WKH´EHVW´EDODQFH´RI´SHUIRUPDQFH´DQG´DYDLODELOLW\µ´,W´FDQ´EH´XVHG´IRU´DQ\´
5$,’¸¶´RU´5$,’¸¿´DSSOLFDWLRQV»´EXW´ZLWK´KLJKHU´RYHUKHDG´FRVWV´EHFDXVH´WKH´GLVNV´DUH´PLUURUHGµ´,W´LV´
UHFRPPHQGHG´IRU´DSSOLFDWLRQV´ZKHUHÃ
Å
’DWD´DYDLODELOLW\´LV´FULWLFDOO\´LPSRUWDQWµ
Å
2YHUDOO´SHUIRUPDQFH´LV´YHU\´LPSRUWDQWµ
:KHQ´SODQQLQJ´D´5$,’¸±Ç¹´JURXS´IRU´KLJKHVW´DYDLODELOLW\´DQG´EHVW´SHUIRUPDQFH»´WKH´GDWD´GLVNV´ÁRU´
SULPDU\´LPDJHV´PXVW´EH´ORFDWHG´RQ´D´GLIIHUHQW´LQWHUQDO´6(´6&6,¸²´EXV´IURP´WKH´GLVN´PLUURUV´ÁRU´
VHFRQGDU\´LPDJHVµ´)RU´H[DPSOH»´WKH´5$,’¸±Ç¹´JURXS´VKRZQ´LQ´)LJXUH´±¸±·´KDV´HLJKW´PRGXOHV´WKDW´
PDNH´XS´WKH´SULPDU\´ÁS´DQG´VHFRQGDU\´ÁV´LPDJH´SDLUV´RI´WKH´JURXSµ´,Q´WKLV´H[DPSOH»´WKH´JURXS´FDQ´
FRQWLQXH´DIWHU´IDLOXUH´RI´$¹´RU´(¹»´%¹´RU´$¶»´&¹´RU´%¶»´DQG´’¹´RU´&¶´EHFDXVH´S±´DQG´V±´DUH´LQ´VORWV´$¹´
DQG´(¹Ä´S²´DQG´V²´DUH´LQ´VORWV´%¹´DQG´$¶Ä´S¶´DQG´V¶´DUH´LQ´VORWV´&¹´DQG´%¶Ä´DQG´S¾´DQG´V¾´DUH´LQ´VORWV´
’¹´DQG´&¶µ
:KHQ´ELQGLQJ´PRGXOHV´LQWR´D´5$,’¸±Ç¹´JURXS»´WKH\´PXVW´EH´VHOHFWHG´LQ´WKH´IROORZLQJ´RUGHUôS±»´V±»´
S²»´V²»´S¶»´V¶»´DQG´VR´RQµ