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doc: explain HBA

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Thomas Schoebel-Theuer 2018-06-26 08:04:17 +02:00
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docu/mars-manual.lyx
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@ -6315,7 +6315,7 @@ Commodity Hardware
approaches, like Ceph storage nodes driving dozens of local HDDs connected
over SAS or SATA.
The main difference is just that instead of a hardware RAID controller,
a hardware HBA is used instead.
a hardware HBA = Host Bus Adapter is used instead.
Instead of Ethernet switches, SAS multiplexers in backplanes are used.
Anyway, this forms a locally distributed sub-system.
\end_layout