PowerScaleOneFS CLI Command Reference

Syntax

isi filepool default-policy modify  
 [--data-access-pattern  {random | concurrency | streaming}]
 [--set-requested-protection {default | +1 | +2:1 | +2 | +3:1 | 
 +3 | +4 | 2x | 3x | 4x | 5x | 6x | 
 7x | 8x}]
 [--data-storage-target <string>]
 [--data-ssd-strategy  {metadata | metadata-write | data | avoid}]
 [--snapshot-storage-target <string>]
 [--snapshot-ssd-strategy {metadata | metadata-write | data | avoid}]
 [--enable-coalescer {yes | no}]
 [--enable-packing {yes | no}]
 [--cloud-pool <string>]
 [--cloud-accessibility {cached | no-cache}]
 [--cloud-cache-expiration <duration>]
 [--cloud-compression-enabled {yes | no}]
 [--cloud-data-retention <duration>]
 [--cloud-encryption-enabled {yes | no}]
 [--cloud-full-backup-retention <duration>]
 [--cloud-incremental-backup-retention <duration>]
 [--cloud-read-ahead <string>]
 [--cloud-writeback-frequency <duration>]
 [--cloud-archive-snapshot-files {yes | no}]
 [--verbose | -v]
 [--help | -h]

Options

--data-access-pattern <string>

Specifies the preferred data access pattern, one of random, streaming, or concurrent.

--set-requested-protection <string>

Specifies the requested protection for files that match this filepool policy (for example, +2:1).

--data-storage-target <string>

Specifies the node pool or tier to which the policy moves files on the local cluster.

--data-ssd-strategy <string>

Specifies how to use SSDs to store local data.

avoid

Writes all associated file data and metadata to HDDs only.

metadata

Writes both file data and metadata to HDDs. This is the default setting. An extra mirror of the file metadata is written to SSDs, if SSDs are available. The SSD mirror is in addition to the number required to satisfy the requested protection. Enabling global namespace acceleration (GNA) makes read acceleration available to files in node pools that do not contain SSDs.

metadata-write

Writes file data to HDDs and metadata to SSDs, when available. This strategy accelerates metadata writes in addition to reads but requires about four to five times more SSD storage than the Metadata setting. Enabling GNA does not affect read/write acceleration.

data

Uses SSD node pools for both data and metadata, regardless of whether global namespace acceleration is enabled. This SSD strategy does not result in the creation of additional mirrors beyond the normal requested protection but requires significantly more storage space compared with the other SSD strategy options.

--snapshot-storage-target <integer>

The ID of the node pool or tier chosen for storage of snapshots.

--snapshot-ssd-strategy <string>

Specifies how to use SSDs to store snapshots. Valid options are metadata, metadata-write, data, avoid. The default is metadata.

--enable-coalescer {yes | no}

Enable or disable the coalescer, also referred to as SmartCache. The coalescer protects write-back data through a combination of RAM and stable storage. It is enabled by default, and should be disabled only in cooperation with EMC Isilon Customer Support.

--enable-packing {yes | no}

Enable packing.

--cloud-pool <string>

Specifies the default CloudPool and, therefore, the cloud storage account where cloud data is to be archived.

--cloud-accessibility {cached | no-cache}

Specifies whether, when a SmartLink file is accessed, cloud data is incrementally downloaded (cached) as needed, or fully downloaded (not cached).

--cloud-cache-expiration <duration>

Specifies the minimum amount of time until the cache expires. A number followed by a unit of time is accepted. For example, a setting of 9H would specify a nine-hour duration. Similarly, a setting of 2D would specify a two-day duration.

--cloud-compression-enabled {yes | no}

Specifies whether data is to be compressed when archived to the cloud.

--cloud-data-retention <duration>

Specifies the minimum amount of time that archived data will be retained in the cloud after a SmartLink file is deleted from the cluster. A number followed by a unit of time is accepted. For example, a setting of 9H would specify a nine-hour duration. Similarly, a setting of 2D would specify a two-day duration.

--cloud-encryption-enabled {yes | no}

Specifies whether data is to be encrypted when archived to the cloud.

--cloud-full-backup-retention <duration>

Specifies the minimum amount of time that cloud files will be retained after the creation of a full backup. A number followed by a unit of time is accepted. For example, a setting of 9H would specify a nine-hour duration. Similarly, a setting of 2D would specify a two-day duration.

--cloud-incremental-backup-retention <duration>

Specifies the minimum amount of time that cloud files will be retained after the creation of an incremental backup. A number followed by a unit of time is accepted. For example, a setting of 9H would specify a nine-hour duration. Similarly, a setting of 2D would specify a two-day duration.

--cloud-read-ahead {partial | full}

Specifies the cache readahead strategy when SmartLink files are accessed. A partial strategy means that only the amount of data needed by the user is cached. A full strategy means that all file data will be cached when the user accesses a SmartLink file.

--cloud-writeback-frequency <duration>

Specifies the minimum amount of time to wait before OneFS updates cloud data with local changes. A number followed by a unit of time is accepted. For example, a setting of 9H would specify a nine-hour duration. Similarly, a setting of 2D would specify a two-day duration.

--cloud-archive-snapshot-files {yes | no}

Whether or not policies should archive files with snapshots.

--verbose | -v

Displays more detailed information.

--help | -h

Display help for this command.

Example

isi filepool default-policy modify --set-requested-protection=+2:1 --data-storage-target=anywhere 
--data-ssd-strategy=metadata-write