Automatic data separation and placement for compressed data in a storage device
A storage device is disclosed. The storage device may include storage for data. A host interface logic may receive a dataset and a logical address from a host. A stream assignment logic may assign a stream identifier (ID) to a compressed dataset based on a compression characteristic of the compressed dataset. The stream ID may be one of at least two stream IDs; the compressed dataset may be determined based on the dataset. A logical-to-physical translation layer may map the logical address to a physical address in the storage. A controller may store the compressed dataset at the physical address using the stream ID.
1 . A storage device, comprising:
storage for data;
a first circuit to receive a dataset from a host;
a second circuit to assign an identifier to a transformed dataset based on a transformation characteristic of the transformed dataset; and
a controller to store the transformed dataset in a block based at least in part on the assigned identifier.
2 . The storage device according to claim 1 , wherein the dataset includes the transformed dataset.
3 . The storage device according to claim 2 , wherein the first circuit is configured to further receive the transformation characteristic from the host.
4 . The storage device according to claim 1 , further comprising a third circuit to transform the dataset to generate the transformed dataset.
5 . The storage device according to claim 4 , wherein the third circuit is configured to generate the transformation characteristic.
6 . The storage device according to claim 1 , wherein the identifier is drawn from a set including a stream identifier, a placement identifier, or namespace identifier.
7 . The storage device according to claim 1 , wherein the second circuit is configured to assign the identifier to the transformed dataset based on the transformation characteristic of the transformed dataset and a host assigned property.
8 . The storage device according to claim 7 , wherein the host assigned property is drawn from a set including a logical address, a logical block address (LBA), a key, a host identifier, a host stream identifier, and an interface between the host and the storage device in the first circuit.
9 . The storage device according to claim 1 , wherein the transformed dataset is stored in a single block associated with the identifier in the storage.
10 . The storage device according to claim 9 , wherein the single block includes a second transformed dataset.
11 . A method, comprising:
receiving a dataset at a storage device from a host;
determining a transformation characteristic for a transformed dataset;
assigning an identifier based at least in part on the transformation characteristic; and
storing the transformed dataset in a storage in the storage device based at least in part on the identifier.
12 . The method according to claim 11 , wherein:
storing the transformed dataset in the storage in the storage device based at least in part on the identifier includes storing the transformed dataset at a physical address in the storage in the storage device based at least in part on the identifier; and
the method further comprises:
receiving a logical address for the dataset at the storage device from the host; and
mapping the logical address to the physical address.
13 . The method according to claim 11 , further comprising transforming the dataset to generate the transformed dataset.
14 . The method according to claim 11 , wherein transforming the dataset to generate the transformed dataset includes generating the transformation characteristic.
15 . The method according to claim 11 , wherein the identifier is drawn from a set including a stream identifier, a placement identifier, or namespace identifier.
16 . The method according to claim 11 , wherein assigning the identifier based at least in part on the transformation characteristic includes assigning the identifier based at least in part on the transformation characteristic and a host assigned property.
17 . The method according to claim 16 , wherein the host assigned property is drawn from a set including a logical address for the dataset, a logical block address (LBA), a key, a host identifier, a host stream identifier, and an interface between the host and the storage device.
18 . The method according to claim 11 , wherein storing the transformed dataset in the storage in the storage device based at least in part on the identifier includes storing the transformed dataset in a single block in the storage in the storage device, the single block associated with the identifier.
19 . An article, comprising a non-transitory storage medium, the non-transitory storage medium having stored thereon instructions that, when executed by a machine, result in:
receiving a dataset at a storage device from a host;
determining a transformation characteristic for a transformed dataset;
assigning an identifier based at least in part on the transformation characteristic; and
storing the transformed dataset in a storage in the storage device based at least in part on the identifier.
20 . The article according to claim 19 , wherein:
storing the transformed dataset in the storage in the storage device based at least in part on the identifier includes storing the transformed dataset at a physical address in the storage in the storage device based at least in part on the identifier; and
non-transitory storage medium having stored thereon instructions that, when executed by a machine, result in:
receiving a logical address for the dataset at the storage device from the host; and
mapping the logical address to the physical address.