Brocade Communications Systems IP250 user manual Viewing SAN device properties

E Viewing SAN device properties

Field	Description
(Status)	Lists two kinds of data: the LUN’s health and the state of the LUN’s disks.
	The colored icon in the lower-left corner indicates the LUN’s health. In
	most cases, there is also a number that represents the RAID type. The
	possible RAID types are 0, 1, 5, or 10, and the number does not display if
	the RAID type is different from those.
	The following are examples of generic LUN status icons:
	Normal. All disks are operating normally and online.
	Transitioning. One or more disks are in a transitioning state. For example,
	rebuilding or binding. RAID type is 1 in this case.
	Faulted/Offline. One or mores disks is offline or faulted. RAID type is 10 in
	this case.
	Unknown. Status is not available.
Array	A group of disks designated by the user to be managed by the RAID-5
	technique.
Assigned LUNs (Count)	All LUNs assigned (masked) to host ports that currently exist on this
	storage device.
Assigned LUNs (Size GB)	The total amount of storage space carved into LUNs and assigned
	(masked) to host ports on the storage device.
Block Size (B)	The size of the individual blocks on the disk, in bytes.
Device Adapter	(IBM ESS products only) Displays one of eight ESS product adapters
	deployed in pairs, one for each cluster that provides communication
	between the cluster and storage products.
Disks	The number of disks across which this LUN is striped.
Free LUNs (Count)	All LUNs NOT assigned (masked) to any host ports (available) that
	currently exist on this storage device.
Free LUNs (Size GB)	The total amount of storage space carved into LUNs but NOT assigned
	(masked) to host ports on the storage device, in gigabytes.
Free Space (Count)	The number of contiguous free space instances not yet carved into LUNs
	(available to be carved) on the storage device. Typically, there is one free
	space for each disk group on a storage device.
Free Space (Size GB)	The total amount of storage space not carved into a LUN (available for
	new LUNs) on the storage device, in gigabytes.
Hosts Assigned	The number of hosts to which this LUN has been assigned.
Host Spares	The number of disks assigned as host spares in addition to the disks that
	make up the LUN.
Label	A user-specified label. The default value is the name of the label as
	specified in the storage product.
Loop	(IBM ESS products only) The physical connection between a pair of
	product adapters in the ESS product.
LSS ID	Specifies the logical subsystem of an IBM ESS product.
LUN Name	The name of the LUN.
LUN Status	The LUN status (online or offline).
Management Link	The management link status (Up/Down) of the product.
Model #	The model number of the product.
Name (in-band)	The name of the in-band product.

1306	Brocade Network Advisor IP User Manual
	53-1003056-01