Extent migration in multi-tier storage systems

SV Karve, KS Patel, SS Patel - US Patent 10,540,113, 2020 - Google Patents
Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Extent migration in multi-tier storage systems

SV Karve, KS Patel, SS Patel - US Patent 10,175,909, 2019 - Google Patents
Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Extent migration in multi-tier storage systems

SV Karve, KS Patel, SS Patel - US Patent 10,168,946, 2019 - Google Patents
Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Extent migration in multi-tier storage systems

SV Karve, KS Patel, SS Patel - US Patent 11,073,999, 2021 - Google Patents
Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Extent migration in multi-tier storage systems

SV Karve, KS Patel, SS Patel - US Patent 10,042,578, 2018 - Google Patents
Migrating data in a tiered storage system. The tiered storage system includes an upper tier
with at least one storage device and a lower tier with at least one storage device. Data on a …

Data migration across tiers in a multi-tiered storage area network

PK Mahajan, A Jain, S Eda, V Malushte - US Patent 11,199,988, 2021 - Google Patents
(57) ABSTRACT A storage volume functioning at least in part as cache for a tiered storage
system, the storage volume having an in memory write extent consisting of write-accessed …

Integration of the frequency of usage of tracks in a tiered storage system into a cache management system of a storage controller

LM Gupta, MG Borlick, KA Anderson… - US Patent 10,691,596, 2020 - Google Patents
A storage tier management application indicates a heat index for each extent of a plurality of
extents, wherein a higher heat index indicates a greater frequency of usage of tracks of an …

Placement and movement of sub-units of a storage unit in a tiered storage environment

BS Powers, GA Spear, TN Werley - US Patent 9,298,373, 2016 - Google Patents
(57) ABSTRACT A storage controller configures a plurality of storage tiers. A Sub-unit of a
storage unit is maintained in a selected Storage tier of the plurality of storage tiers, for at …

Storage application performance matching

LY Chiu, CL Dickey, YC Hsu, IIJS Hyde… - US Patent …, 2013 - Google Patents
(57) ABSTRACT Input/output (I/O) activity in the multiple tier storage system is monitored to
collect statistical information. The statistical information is recurrently transformed into an …

Relative heat index based hot data determination for block based storage tiering

A Baderdinni - US Patent 8,478,939, 2013 - Google Patents
Disclosed is a process for determining a heat index for a block of data, such as an extent, for
storage tiering. Weighted scores are used for read and write operations, since solid state …