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storage arrays, RAID, SAN components - Coggle Diagram
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SAN components
Fibre Channel
Connections
ANSI
phisical interfases
- distances
- cableling
- signaling
data encoding & link controls
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hosts and application sees storage devices attached to the SAN as if they are locally attached storage
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- began in 1988
- extension of IPI. intelligent peripheral interface
- HIPPI: hight performance paralell interface
- high speed data transfer between servers and storage systems
- multiple connections, simultaneusly accessing the same storage device
WWN
- 3 sections
- identify SAN device location
WWNN
WWPN
- Zoning: for hosts, hosts in the same discover and access devices ONLY in that zone
- LUN masking for access permissions, at the disk array level
Host
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host bus adapters HBA
- convert signal digital-optical
- PCI cards for rack based servers
- mezzanine cards fro server blades
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SAN boot order
- power on SAN "fabric"
- power on disk array & wait for the disks to log in to the fabric
- boot host systems, verify target drives are visible
to shut down, same steps in the opposite order
Nodes, Ports and Links
node: addressable item
- server
- disk array
- tape library
I/O entity within NODE is PORT
- nodes can have multiple ports
Port: connection point within a FC network
- exist on a node, switch or director
- has a designation for level of functionality and connection type
- U, universal port
- F, fabric port attached to a N port
- FL, fabric lopp port, connected to a HUB
- E, expansion port, connected to another switch using inter-switch link
- G, generic port, waiting to become E o F
device ports:
- N: node port attached directly to a FABRIC,
- NL:node loop port, device connected to HUB
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