1-5
Introduction
RAID Level 0 : “ Disk Striping “ High I/O Performance
Improved I/O performance is the major reason of using RAID
level 0.
No protection is provided against data loss due to member
disk failures. A RAID level 0 array by itself is thus an unsuitable
storage medium for data that can not easily be reproduced,
or for data that must be available for critical system operation.
It is more suitable for data that can be reproduced or is
replicated on other media.
A RAID level 0 array can be particularly useful for :
Storing program image libraries or runtime libraries for rapid
loading, these libraries are normally read only.
Storing large tables or other structures of read only data for
rapid application access. Like program images, the data
should be backed up on highly reliable media, from which it
can be recreated in the event of a failure.
Collecting data from external sources at very high data
transfer rates.
RAID level 0 arrays are not particularly suitable for :
Applications which make sequential requests for small
amount of data. These applications will spend most of their
I/O time waiting for disks to spin, whether or not they use
striped arrays as storage media.
Applications which make synchronous random requests for
small amounts of data.
RAID Levels
Содержание X6P U3R2
Страница 1: ...Ultra 160 SCSI to IDE Disk Array system User s Guide Version 1 0 Feb 2003 easyRAID X6P U3R2 ...
Страница 54: ...4 3 Advanced Information Installing Memory Modules 1 Unscrew Remove cover Figure Remove Cover ...
Страница 56: ...4 5 Advanced Information Disk Array Controller Block Diagram ...
Страница 58: ...4 7 Advanced Information Setup VT100 Terminal Example Setup VT100 Terminal in Windows Step 1 ...
Страница 59: ...4 8 Advanced Information Step 2 ...
Страница 60: ...4 9 Advanced Information Step 3 Enter a name for your Terminal ...
Страница 61: ...4 10 Advanced Information Step 4 Select a connecting port in your Terminal ...
Страница 62: ...4 11 Advanced Information Step 5 Port parameter setting ...
Страница 63: ...4 12 Advanced Information Step 6 ...
Страница 66: ...4 15 Advanced Information 2 Press Y to download the new firmware and press Y again to confirm the Update ...
Страница 67: ...4 16 Advanced Information 3 Select transfer Send Text File and press Enter ...
Страница 68: ...4 17 Advanced Information 4 Locate the new Firmware file on your PC ...
Страница 69: ...4 18 Advanced Information 5 Press Go to confirm to download the new firmware ...
Страница 73: ...4 22 Advanced Information How To Setup Multiple RAID Step 2 Select Advance Setep RAID Group 1 Setup ...
Страница 92: ...5 3 Hot Swap b Gently pull out the HDD tray ...
Страница 93: ...5 4 Hot Swap c Unscrew and unplug the cables Figure Swap HDD Unplug cables ...
Страница 96: ...5 7 Hot Swap b Replace with a new power supply unit Figure Swap P S unit Swap with a new unit ...