CLI Guide

Mid Thresh
The middle threshold for page allocation as a percentage of pool capacity. When this threshold
is exceeded, event 462 will be logged. If the pool is not overcommitted, the event will have
Informational severity. If the pool is overcommitted, the event will have Warning severity.
High Thresh
The high threshold for page allocation as a percentage of pool capacity. The threshold value is
automatically calculated based on the available capacity of the pool minus 200 GB of reserved space.
When this threshold is exceeded, event 462 will be logged. If the pool is not overcommitted, the
event will have Informational severity. If the pool is overcommitted, the event will have Warning
severity and the system will use write-through cache mode until page allocation drops back below
this threshold.
● When the overcommit feature is disabled, the host does not lose read or write access to the pool
volumes when the pool reaches or exceeds the high threshold value.
● When the overcommit feature is enabled, the storage system sends the data protect sense key
Add, Sense: Space allocation failed write protect to the host when the pool
reaches or exceeds the high threshold value. If the host is rebooted after the pool reaches or
exceeds the high threshold value, the host loses read and write access to the pool volumes. The
only way to regain read and write access to the pool volumes is to add more storage to the pool.
Sec Fmt
The sector format of disks in the pool.
● 512n: All disks use 512-byte native sector size. Each logical block and physical block is 512 bytes.
● 512e: All disks use 512-byte emulated sector size. Each logical block is 512 bytes and each
physical block is 4096 bytes. Eight logical blocks will be stored sequentially in each physical block.
Logical blocks may or may not be aligned with physical block boundaries.
● Mixed: The pool contains a mix of 512n and 512e disks. This is supported, but for consistent and
predictable performance, do not mix disks of different sector size types (512n, 512e).
Health
● OK
● Degraded
● Fault
● N/A
● Unknown
Reason
If Health is not OK, this field shows the reason for the health state.
Action
If Health is not OK, this field shows recommended actions to take to resolve the health issue
Examples
Show information about all pools.
# show pools
Show information about virtual pools.
# show pools type virtual
Basetypes
pools
disk-groups
tiers
See also
delete pools
set pool
show pool-statistics
220 Alphabetical list of commands