mmlspool command
Displays information about the known storage pools.
Synopsis
mmlspool Device {StoragePool[,StoragePool...] | all} [-L]Availability
Available on all IBM Spectrum Scale™ editions.
Description
The mmlspool command displays basic or detailed information about the storage pools in a file system.
Parameters
- Device
- Specifies the device name of the file system for which storage pool information is to be displayed. File system names do not need to be fully qualified; for example, fs0 is as acceptable as /dev/fs0.
- StoragePool[,StoragePool...]
- Specifies one or more storage pools for which information is to be displayed.
- all
- Displays information about all the storage pools in specified file system.
- -L
- Displays detailed information about each storage pool.
Exit status
- 0
- Successful completion.
- nonzero
- A failure occurred.
Security
If you are a root user, the node on which the command is issued must be able to execute remote shell commands on any other node in the cluster without the use of a password and without producing any extraneous messages. For more information, see Requirements for administering a file system in IBM Spectrum Scale: Administration and Programming Reference.
If you are a nonroot user, you may specify only file systems that belong to the same cluster as the node on which the mmlspool command was issued.
Examples
- To show basic information about all storage pools in a file system, issue this command:
The system displays information similar to:mmlspool /dev/fst allName Id system 0 sataXXX 65537 - To show more information, issue this command:
The system displays information similar to:mmlspool /dev/fst sataXXX -LsataXXX poolID = 65537 blockSize = 256K usage = dataOnly defaultDataReplication = 3 maxDiskSize = 100G layoutMap = cluster allowWriteAffinity = yes writeAffinityDepth = 1 blockGroupFactor = 2
See also
See also the following IBM
Spectrum Scale RAID: Administration topics:
- "mmlsrecoverygroup command"
- "mmlsvdisk command"