BC4000 Series RAID Controllers
User Manual
02/13/06
B ro ad c om C o r p or at i on
Page 68
Reviewing the Interface
Document
BC4000-UM100-R
I/O S
TATUS
B
AR
E
LEMENTS
The
I/O Status
bar in the
Array Status
window provides I/O information.
State
State of the array (NORMAL, CRITICAL, OFFLINE)
Task
Task type if in progress (CREATE, TRANSFORM, COPY, CHECK, CHECK_BITMAP,
ZERO, NOT_ACTIVE, RESTORE)
Task State
The state of the task (STARTED, PAUSED, COMPLETED); the progress of the task is
given in the
Array View
area.
Pri
Task priority if a task is in progress.
Scan
Background Array Scan enabled? (Yes/No)
Cache
Current cache setting (NC=No Cache, R=Read Cache, W=Write-Back Cache,
RW=Read/Write Cache)
Dst Spare
Indicates whether the distributed spare option is being used
Ded Spare
Indicates the number of dedicated spares assigned to the array
Item
Description
I/O Status Bar
Item
I/O Information
Host x.x MB/s
Host traffic in MegaBytes per second
Disk x.x MB/s
Disk traffic in MegaBytes per second
Host x I/Os
Host I/Os per second
Disk x I/Os
Disk I/Os per second
Host Queue
Number of Host I/O requests currently in progress
Disk Queue
Number of Disk I/O requests currently in progress
Dirty
Number of dirty cache buffers if write caching has been enabled (or the number of
buffers not actually written out to the drives). This is informational only and not an error
condition.
Host
Total amount of data transferred to or from the host since last boot
Disk
Total amount of data transferred to or from the disks since last boot
Note:
The I/O status indicators are approximate in nature especially when the system is undergoing
heavy I/O traffic.