Administrator Guide

When reviewing the event log, look for recent Critical, Error, or Warning events. For each, click the message to view additional information
and recommended actions. Follow the recommended actions to resolve the problems.
Resources for diagnosing and resolving problems
• The troubleshooting chapter and LED descriptions appendix in your product's Deployment Guide
• The topics about verifying component failure in your product's FRU Installation and Replacement Guide
• The full list of event codes, descriptions, and recommended actions in your product's event documentation
Viewing capacity information
The capacity panel in the footer shows a pair of color-coded bars. The lower bar represents the physical capacity of the system, and the
upper bar identifies how the capacity is allocated and used.
Hover the cursor over a segment to see the storage type and size that is represented by that segment. For instance, in a system where
storage is being used, the bottom bar has color-coded segments that show the total unused disk space and space that is used by disk
groups. The total of these segments is equal to the total disk capacity of the system.
Hover the cursor over a segment to see the storage type and size that is represented by that segment. For instance, in a system where
both virtual and linear storage is being used, the bottom bar has color-coded segments that show the total unused disk space that is
allotted for virtual and linear disk groups and the space that is used by the disk groups. The total of these segments is equal to the total
disk capacity of the system.
In this same system, the top bar has color-coded segments for reserved, allocated, and unallocated space for disk groups. If very little disk
group space is used for any of these categories, it will not be visually represented.
In this same system, the top bar has color-coded segments for reserved, allocated, and unallocated space for virtual and linear disk groups.
If very little disk group space is used for any of these categories, it will not be visually represented.
Reserved space refers to space that is unavailable for host use. It consists of RAID parity and the metadata that is needed for internal
management of data structures. The terms allocated space and unallocated space have different meanings for the virtual and linear
storage technologies. For virtual storage, allocated space refers to the amount of space that is consumed by data that is written to the
pool. Unallocated space is the difference between the space that is designated for all volumes and the allocated space.
Reserved space refers to space that is unavailable for host use. It consists of RAID parity and the metadata that is needed for internal
management of data structures. The terms allocated space and unallocated space have different meanings for the virtual and linear
storage technologies. Allocated space, for virtual storage, refers to the amount of space that is consumed by data that is written to the
pool. Unallocated space is the difference between the space that is designated for all volumes and the allocated space.
For linear storage, allocated space is the space that is designated for all volumes. (When a linear volume is created, space equivalent to the
volume size is reserved for it. This is not the case for virtual volumes.) Unallocated space is the difference between the overall and
allocated space.
Hover the cursor over a segment of a bar to see the storage size represented by that segment. Point anywhere in this panel to see the
following information about capacity utilization in the Capacity Utilization panel:
• Total Disk Capacity: The total physical capacity of the system
• Unused: The total unused disk capacity of the system
• Global Spares: The total global spare capacity of the system
• Virtual/Linear Disk Groups: The capacity of the disk groups, both total and by pool.
• Reserved: The reserved space for the disk groups, both total and by pool
• Allocated: The allocated space for the disk groups, both total and by pool
• Unallocated: The unallocated space for the disk groups, both total and by pool
• Uncommitted: For virtual disk groups, the uncommitted space in each pool (total space minus the allocated and unallocated space)
and total uncommitted space
Viewing host information
The host I/O panel in the footer shows a pair of color-coded bars for each controller that has active I/O. In each pair, the upper bar
represents the current IOPS for all ports, which is calculated over the interval since these statistics were last requested or reset, and the
lower bar represents the current data throughput (MB/s) for all ports, which is calculated over the interval since these statistics were last
requested or reset. The pairs of bars are sized to represent the relative values for each controller.
Hover the cursor over a bar to see the value represented by that bar.
Working in the banner and footer
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