Dot Hill Systems SANnet II 200 - Manual (Page 6)

FIGURE 3: Typical Sequence of Installation Steps
Reliability, Availability and Serviceability
Comprehensive reliability, availability and serviceability (RAS) are assured within SANnet II 200
SCSI arrays. Proven low voltage differential (LVD) signaling across all disk and host SCSI buses
keeps data transfers reliable. Flexible support for RAID levels 0, 1, 0+1, 3, 5, 3+0 and 5+0, plus
global and dedicated spare disks provide powerful choices for protecting valuable information.
Every FRU is hot-swappable or hot-serviceable to virtually eliminate downtime, plus critical
FRUs operate in redundant pairs.
Base Unit
with Redundant
Controllers Base Unit
with Single Controller Expansion Unit
(no controllers)
Controller Modules Hot-swappable Hot-serviceable Not applicable
Disk Modules Hot-swappable Hot-swappable Hot-swappable
Power and Cooling
Modules Hot-swappable Hot-swappable Hot-swappable
Event Management
Modules Hot-swappable Hot-swappable Not applicable
SCSI Modules Hot-serviceable Hot-serviceable Hot-serviceable
Termination Modules Hot-serviceable Hot-serviceable Not applicable
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