CLI Guide

Table 124. tier-hist-statistics properties (continued)
Name Type Description
total-bytes-per-sec string 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 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 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-page-moves-in uint64 The number of pages moved into this tier from a different tier.
number-of-page-moves-out uint64 The number of pages moved out of this tier to other tiers.
number-of-page-rebalances uint64 The number of pages moved between disks in this tier to automatically load balance.
number-of-initial-allocations uint64 The number of 4 MB pages that are allocated as a result of host writes. This number
does not include pages allocated as a result of background tiering page movement.
(Tiering moves pages from one tier to another, so one tier will see a page deallocated,
while another tier will show pages allocated. These background moves are not
considered initial allocations.)
number-of-unmaps uint64 The number of 4 MB pages that are automatically reclaimed and deallocated because
they are empty (they contain only zeroes for data).
number-of-rfc-copies uint64 The number of 4 MB pages copied from spinning disks to SSD read cache (read flash
cache).
number-of-zero-pages-
reclaimed
uint64 The number of empty (zero-filled) pages that were reclaimed during this sample 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.
tier-statistics
This basetype is used by show tier-statistics and show pool-statistics.
Table 125. tier-statistics properties
Name Type Description
serial-number string The serial number of the tier or pool.
pool string The name of the pool.
tier string
• Archive: The lowest storage tier, which uses midline spinning SAS disks (<10k
RPM, high capacity).
• Performance: The highest storage tier, which uses SSDs (high speed).
• Read Cache: The tier that provides read cache for a storage pool.
• Standard : The tier that uses enterprise-class spinning SAS disks (10k/15k RPM,
higher capacity).
tier-numeric uint32 Numeric equivalents for tier values.
• 0: N/A
• 1: Performance
• 2: Standard
• 4: Archive
API basetype properties 409