CLI Guide

Arguments
Optional arguments
[-c|--clusters] cluster,cluster... List of clusters to summarize, separated by commas. May contain glob characters.
Description
Displays a cluster's unhealthy extents (if any exist), the total number of extents by use, and calculates the total extent capacity
for this cluster.
An unhealthy extent has a non-nominal health state, operational status or I/O status.
If the --clusters argument is not specified and the command is executed at or below a specific cluster's context, information
is summarized for only that cluster. Otherwise, the extents of all clusters are summarized.
Table 9. extent summary field descriptions
Field Description
Health summary (displayed only for unhealthy extents)
Name
Name of extent.
I/O Status
alive - I/O is proceeding normally on the extent.
dead - The underlying storage volume is marked as hardware-
dead.
unreachable - The underlying storage volume is
unreachable.
Operational Status
degraded - The extent may be out-of-date compared to
its mirror (applies only to extents that are part of a RAID 1
device).
ok - The extent is functioning normally.
starting - The extent is not yet ready.
unknown - Metro node cannot determine the extent's
Operational state, or the state is invalid.
Health State
degraded - The extent may be out-of-date compared to
its mirror (applies only to extents that are part of a RAID 1
device).
ok - The extent is functioning normally.
non-recoverable-error - The extent may be out-of-
date compared to its mirror (applies only to extents that are
part of a RAID 1 device), and/or the Health state cannot be
determined.
unknown - Metro node cannot determine the extent's
Operational state, or the state is invalid.
Extent Summary
Health
extents - Total number of extents on the cluster, the
number.
out-of-date - Of the total number of extents on the
cluster, the number that are out-of-date compared to their
mirror.
196 Commands