Hardware
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RAID0
In RAID0, data to be recorded is distributed to HDDs. The mode is called "striping".
In the figure below, data is recorded in stripe 1 (disk 1), stripe 2 (disk 2), and stripe 3 (disk 3)… in
the order. Because RAID0 allows all HDDs to be accessed collectively, it can provide the best
disk access performance.
RAID1
In the RAID1 level, data saved in a HDD is written to another HDD without change. The mode is
called "mirroring".
When data is written onto a single HDD, the same data is written onto another HDD. If either of
the HDDs is defected, the other HDD containing the same data can substitute for the defected
HDD. Thus the system can continue to operate without interruption.
IMPORTANT:
RAID0 cannot have data redundancy. If a HDD is defected, the data
saved in the HDD cannot be recovered.
HDD 1
RAID Controller
HDD 2
HDD 3
Stripe 1
Strip1
Stripe 4
Stripe 2
Stripe 5
Stripe 3
Stripe 6
HDD 1
RAID Controller
HDD 2
Stripe 1
Stripe 2
Stripe 1
Stripe 2
Содержание Express 5800
Страница 73: ...73 Memo ...
Страница 279: ...Hardware 279 3 BIOS Menu screen is displayed ...
Страница 336: ...Hardware 336 Display Screen for WebBIOS Physical Drives Property Screen for Universal RAIDUtility Physical Devices ...
Страница 339: ...Hardware 339 3 BIOS will start Select Save Exit then press Enter ...
Страница 365: ...Hardware 365 6 Select Home at the lower left of the screen and press Enter to go back to WebBIOS Home Menu ...
Страница 444: ...444 Part Number Part number FRU File ID FRU file ID Asset Tag Asset management tag ...
Страница 526: ...526 Then input User Name for Authentication and select Keyboard interactive Then input Password ...
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Страница 583: ...Software 583 Memo ...
Страница 690: ...Operation and Maintenance 690 Memo ...
Страница 719: ...XXIX Memo ...