Technology to manage capacity loss in storage drives

Patent metadata

Field	Value
Publication number	US-11068175-B2
Application number	US-201816229679-A
Country	US
Kind code	B2
Filing date	Dec 21, 2018
Priority date	Dec 21, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A system including a storage drive and a semiconductor apparatus coupled to the storage drive, is provided. The semiconductor apparatus may include one or more substrates and logic coupled to the one or more substrates, the logic coupled to the one or more substrates to: initiate managing resources of the storage drive and, if the storage drive loses capacity, determine an amount of capacity loss, create a reserved file that is associated with logical memory space in a file system, based on the amount of the capacity loss, and erase at least a portion of the reserved file so that logical memory space associated with an un-erased portion of the reserved file is usable by the storage drive.

First claim

We claim:

1. A system comprising:
a storage drive; and
a semiconductor apparatus coupled to the storage drive, the semiconductor apparatus including one or more substrates and logic coupled to the one or more substrates, the logic coupled to the one or more substrates to:
in response to creating a new partition in the storage drive, triggering an initialization flow comprising:
reading a capacity loss unit size of each of a plurality of capacity loss units; and
reading a number of the plurality of capacity loss units;

in response to determining a capacity loss relating to logical memory space that has failed in the storage drive:
determining a difference between a number of plurality of capacity loss units and a previous number of capacity loss units;
calculating a required capacity value based on the difference and the capacity loss unit size;
creating a new reserved file with a size equal to the required capacity value to match the capacity loss; and
erasing a portion of the new reserved file, wherein logical memory space associated with an un-erased portion of the new reserved file is usable by the storage drive.

2. The system of claim 1 , wherein the storage drive is a solid-state drive.

3. The system of claim 1 , wherein, in response to determining another capacity loss in the storage drive, the logic coupled to the one or more substrates further is to register for a new capacity loss event.

4. A semiconductor apparatus comprising:
one or more substrates; and
logic coupled to the one or more substrates, wherein the logic is implemented at least partly in one or more of configurable logic or fixed-functionality hardware logic, the logic coupled to the one or more substrates to:
in response to creating a new partition in the storage drive, triggering an initialization flow comprising:
reading a capacity loss unit size of each of a plurality of capacity loss units; and
reading a number of the plurality of capacity loss units;

in response to determining a capacity loss relating to logical memory space that has failed in the storage drive:
determining a difference between a number of plurality of capacity loss units and a previous number of capacity loss units;
calculating a required capacity value based on the difference and the capacity loss unit size;
creating a new reserved file with a size equal to the required capacity value to match the capacity loss; and
erasing a portion of the new reserved file, wherein logical memory space associated with an un-erased portion of the new reserved file is usable by the storage drive.

5. The semiconductor apparatus of claim 4 , wherein the storage drive is a solid-state drive.

6. The semiconductor apparatus of claim 4 , wherein, in response determining another capacity loss in the storage drive, the logic coupled to the one or more substrates further is to register for a new capacity loss event.

7. At least one non-transitory computer readable storage medium comprising a set of instructions, which when executed by a computing system, cause the computing system to:
in response to creating a new partition in the storage drive, triggering an initialization flow comprising:
reading a capacity loss unit size of each of a plurality of capacity loss units;
reading a number of the plurality of capacity loss units;

in response to determining a capacity loss relating to logical memory space that has failed in the storage drive:
determining a difference between a number of plurality of capacity loss units and a previous number of capacity loss units;
calculating a required capacity value based on the difference and the capacity loss unit size;
creating a new reserved file with a size equal to the required capacity value to match the capacity loss; and
erasing a portion of the new reserved file, wherein logical memory space associated with an un-erased portion of the new reserved file is usable by the storage drive.

8. The at least one non-transitory computer readable storage medium of claim 7 , wherein the storage drive is a solid-state drive.

9. The at least one non-transitory computer readable storage medium of claim 7 , wherein the set of instructions, when executed, further cause the computing system to, in response to determining another capacity loss in the storage drive, register for a new capacity loss event.

Assignees

• Intel Corp

Inventors

• Pioch Marcin
• Mesnier Michael
• Ramalingam Anand
• Boyer Benjamin
• Karkra Kapil
• Wysocki Piotr

Classifications

• G06F3/0604 Primary

  Improving or facilitating administration, e.g. storage management · CPC title

• G06F3/0632

  by initialisation or re-initialisation of storage systems · CPC title

• G06F3/0643

  Management of files · CPC title

• G06F3/0665

  at area level, e.g. provisioning of virtual or logical volumes · CPC title

• G06F3/0608

  Saving storage space on storage systems · CPC title