Fujitsu primequest 2400E2 Design Manual page 92

3.3.3 Obtaining RAID Cards and FBUs
RAID Cards in SBs
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A SAS array controller card installation kit is required
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Obtain FBUs (Flash Backup Unit) (optional)
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Obtain RAID software licenses (optional)
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RAID Cards in DUs
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Obtain FBUs (optional) for each RAID card
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Obtain RAID software licenses (optional)
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RAID Cards in 1GbE IO Units (for JX40 S2 Connection)
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Obtain FBUs (optional) for each RAID card (installed in Slot#1 and Slot#2)
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Obtain FBUs (optional) (different from the FBUs for SBs/DUs)
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Obtain an FBU installation kit (this kit uses Slot#0 exclusively)
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FBUs cannot be connected to RAID cards that are installed in 10GbE IO units,
PCI Boxes, or Slot#3 on 1GbE IO units.
PRIMEQUEST 2000 Series Design Guide 91 Copyright 2016-2017 FUJITSU LIMITED