Dell Compellent Series 40 - Manual (Page 109)

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E
enclosure
A physical enclosure that provides a single interface, power and cooling to multiple disks.
Also known as Just a Bunch of Disks (JBOD).
F
FC (Fibre Channel)
High-speed, fully duplexed serial communication protocol permitting data transfer rates of
up to 8 Gigabits per second with a roadmap extending up to 10 Gigabit.
FE (front end)
Connection between controller and server.
free space
Total available space minus used space.
H
HBA (Host Bus Adapter)
An I/O adapter that provides connectivity from a server to the Storage Center.
I
IO (input/output)
Moving data into a system memory, and moving data from system memory to another
location.
IO pending
Number of IO operations that are currently in the queue to be run for an object.
IO usage
Speed at which data is being transferred.
iSCSI
Specification that defines the encapsulation of SCSI packets over Ethernet using the TCP/
IP transport protocol.
L
latency
Delay in data transmission measured in milliseconds.