Promise Technology VessRAID 1000s Series Handbuch Seite 27

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Chapter 1: Introduction to VessRAID
7
Background Activities, cont.
Predictive Data Migration (PDM) replaces un-healthy disk member in
array and maintains I/O activity during the transition.
RAID Level Migration (RLM)
Redundancy Check
Synchronizing
SMART condition pooling
Watermarking per BGA in disk and NVRAM.
Task priority and rate control to balance I/O activity and background tasks.
Foreground disk array initialization
Specifications
Power Supply
1840f/i/s: 450W, Dual hot-swappable and redundant, 100-240 VAC auto-ranging,
50-60 Hz, with PFC
1830i/s and 1820i/s: 350W, Dual hot-swappable and redundant, 100-240 VAC
auto-ranging, 50-60 Hz, with PFC
1740i/s: 450W, Single, 100-240 VAC auto-ranging, 50-60 Hz, with PFC and
80PLUS certification
1730i/s and 1720i/s: 350W, Single, 100-240 VAC auto-ranging, 50-60 Hz, with
PFC and 80PLUS certification
1840f/i/s+: 450W, Dual hot-swappable and redundant, 100-240 VAC auto-
ranging, 50-60 Hz, with PFC
1830i/s+: 350W, Dual hot-swappable and redundant, 100-240 VAC auto-ranging,
50-60 Hz, with PFC
1720i+: 350W, Single, 100-240 VAC auto-ranging, 50-60 Hz, with PFC and
80PLUS certification
Current (maximum)
1840f/i/s: 8 A @ 100 VAC or 4 A @ 240 VAC current rating with two power cords
1830i/s and 1820i/s: 6A @ 100 VAC or 3 A @ 240 VAC current rating with two
power cords
1740i/s: 7A @ 100 VAC or 3.5 A @ 240 VAC current rating with one power cord
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