CLI Guide

Table 91. readcache-hist-statistics properties (continued)
Name Type Description
write-iops uint64 The number of write operations per second since the last sampling time.
total-bytes-per-sec string The total data transfer rate, in bytes per second, since the last sampling time.
total-bytes-per-sec-numeric uint64 Unformatted total-bytes-per-second value.
read-bytes-per-sec string The data transfer rate, in bytes per second, for read operations since the last sampling
time.
read-bytes-per-sec-numeric uint64 Unformatted read-bytes-per-second value.
write-bytes-per-sec string Data transfer rate, in bytes per second, for write operations since the last sampling
time.
write-bytes-per-sec-numeric uint64 Unformatted write-bytes-per-second value.
number-of-allocated-pages uint64 The number of 4 MB pages allocated to volumes in the pool.
number-of-pages-copied uint64 The number of pages copied to read cache in the sample time period.
number-of-pages-discarded uint64 The number of pages discarded from read cache (to make room for new hot data) in
the sample time period.
sample-time string Date and time, in the format year-month-day hour:minutes:seconds, when
the data sample was taken.
sample-time-numeric uint32 Unformatted sample-time value.
redundancy
This basetype is used by show redundancy-mode on page 226.
Table 92. redundancy properties
Name Type Description
redundancy-mode string The operating mode of the system, also called the cache redundancy mode.
• Independent Cache Performance Mode : For a dual-controller system,
controller failover is disabled and data in the write-back cache of a controller is not
mirrored to the partner controller. This improves write performance at the risk of
losing unwritten data if a controller failure occurs while there is data in controller
cache.
• Active-Active ULP : Both controllers are active using ULP (Unified LUN
Presentation). Data for volumes configured to use write-back cache is automatically
mirrored between the two controllers to provide fault tolerance.
• Single Controller : The enclosure contains a single controller.
• Failed Over : Operation has failed over to one controller because its partner is
not operational. The system has lost redundancy.
• Down : Both controllers are not operational.
redundancy-mode-numeric uint32 Numeric equivalents for redundancy-modevalues.
• 1: Independent Cache Performance Mode
• 2: Active-Active ULP
• 3: Single Controller
• 4: Failed Over
• 5: Down
redundancy-status string
• Redundant with independent cache : Both controllers are operational but
are not mirroring their cache metadata to each other.
• Redundant : Both controllers are operational.
378 API basetype properties