Accusys ExaSAN User Manual
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Contents
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User Guide Page v3.3.2 Check on new volume in Disk Management of Windows ................................................................3-113.3.3 Check on new volume by fdisk command on Linux .........................................................................3-114. Using RAIDGuardX GUI................................................................................................................. 4-14.1 RAIDGuardX Overview ........................................................................................................ 4-14.1.1 RAIDGuardX at a Glance ...................................................................................................................4-24.1.1.1 Menu Bar ...................................................................................................................................4-24.1.1.2 RAIDGuard X main console .....................................................................................................4-34.1.2 Adding Controller ...............................................................................................................................4-4(1) DAS – add controller locally ..................................................................................................................4-4(2) SAN – add controller remotely ...............................................................................................................4-54.1.3 Planning your RAID ...........................................................................................................................4-64.1.4 Creating an Array ...............................................................................................................................4-74.1.5 Email Notification ............................................................................................................................4-114.1.6 Preference .........................................................................................................................................4-124.1.6.1 Disk Lag Proof Mode ..............................................................................................................4-124.1.6.2 NCQ ........................................................................................................................................4-134.1.6.3 SMART Mode .........................................................................................................................4-134.1.6.4 Beeper .....................................................................................................................................4-144.1.6.5 Equalization Mode ..................................................................................................................4-144.1.6.6 Cache .......................................................................................................................................4-154.1.6.7 MISC .......................................................................................................................................4-164.1.7 Option ...............................................................................................................................................4-174.1.7.1 Slicing .....................................................................................................................................4-174.1.7.2 LUN Map ................................................................................................................................4-194.1.7.3 Expansion ................................................................................................................................4-204.1.7.4 Migrations ...............................................................................................................................4-214.1.7.5 Snapshot ..................................................................................................................................4-244.1.7.6 Health Center ..........................................................................................................................4-274.1.7.7 Unlock Drives .........................................................................................................................4-284.1.8 Updating the ExaSAN RAID system Firmware ...............................................................................4-294.1.8.1 Preparing the Firmware Update Files ......................................................................................4-294.1.8.2 Installing the Firmware Update Files ......................................................................................4-295. RAID Overview ................................................................................................................................. 5-15.1 How RAID Works .................................................................................................................. 5-15.2 Data Storage Methods ............................................................................................................ 5-15.2.1 Data Striping .......................................................................................................................................5-15.2.2 Data Mirroring ....................................................................................................................................5-15.2.3 Data Parity ..........................................................................................................................................5-25.3 RAID Levels ............................................................................................................................ 5-25.3.1 RAID 0: Striping.................................................................................................................................5-25.3.2 RAID 1: Mirroring ..............................................................................................................................5-25.3.3 RAID 5: Independent data disks with distributed parity .....................................................................5-25.3.4 RAID 6: Independent data disks with two Independent parity schemes .............................................5-25.3.5 RAID 0+1: Striped set with Mirroring ................................................................................................5-36. Appendices ........................................................................................................................................ 6-1Appendix A: FAQs .............................................................................................................................. 6-2Appendix B: Icons ............................................................................................................................... 6-4Appendix C: Customer Service and Support.................................................................................... 6-6 |
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