How do I set quota in ZFS?

You can use the quota property to set a limit on the amount of disk space a file system can use. In addition, you can use the reservation property to guarantee that a specified amount of disk space is available to a file system.

How do I increase space in ZFS?

If your zFS file system runs out of space, you have several options to increase its size: You can grow the aggregate. For more information, see Growing a compatibility mode aggregate. If you cannot grow the aggregate (because, for example, there is no more room on the volume), you can add a volume to the aggregate.

How do you create a dataset in ZFS?

Pools

1. List Pools. sudo zpool list.
2. Create a ZFS volume/pool on a single disk: zpool create vol0 /dev/sd[x]
3. Delete All Datasets In A Pool. zfs destroy -r [pool name]
4. Delete a Pool. sudo zpool destroy [pool name]
5. Create a Dataset.
6. List Datasets and Pools.
7. Delete Dataset.
8. Get Dataset Record Size.

How do I list datasets in ZFS?

You can list basic dataset information by using the zfs list command with no options. This command displays the names of all datasets on the system and the values of their used, available, referenced, and mountpoint properties.

How do I make a Zpool?

To create a storage pool, use the zpool create command. This command takes a pool name and any number of virtual devices as arguments. The pool name must satisfy the naming requirements in ZFS Component Naming Requirements.

How do I list ZFS snapshots?

To list the snapshots created for a specific file system, enter zfs list -r -t snapshot followed by the file system name. In the example above, the snapshots created for the file system rpool/export/home are listed. This information is displayed by using the name and creation properties.

What is ZFS scrubbing?

ZFS will automatically protect your data from “Bit rot”, something that can happen to ALL forms of storage. Every time ZFS reads a block, it compares it to it’s checksum, and automatically fixes it. Disk scrub will read all the VDEVs in the pool, therefor fixing any and all bit rot errors.

How do I test a ZFS file system?

9. Enable ZFS File System Compression. If you want to enable ZFS Compression, you need to use zfs set compression=on tpool/vol01 command. Once enabled, you can check the compression status by running zfs get compression tpool/vol01 command.

How do I check my ZFS status?

ZFS provides an integrated method of examining pool and device health. The health of a pool is determined from the state of all its devices. This state information is displayed by using the zpool status command.

How are quotas and reservations used in ZFS?

You can use the quota property to set a limit on the amount of disk space a file system can use. In addition, you can use the reservation property to guarantee that a specified amount of disk space is available to a file system. Both properties apply to the dataset on which they are set and all descendents of that dataset.

How to share the ZFS dataset through NFS?

To share dataset through NFS:We can share the zfs dataset by modifying the zfs attribute. To compress datasetZFS has default compression option.You can enable it using zfs set command. By doing the above,you can see 20M is reserved for oraarch and this space can’t be used by other dataset. Setting quota to dataset: To check the zpool status:

What does it mean to reserve disk space in ZFS?

A ZFS reservation is an allocation of disk space from the pool that is guaranteed to be available to a dataset. As such, you cannot reserve disk space for a dataset if that space is not currently available in the pool.

What does the-a option do in ZFS?

The -a option can be used to mount all ZFS managed filesystems. Legacy managed filesystems are not mounted. filesystem at any time. traditional means such as the /etc/dfs/dfstab file. A ZFS reservation is an allocation of space from the pool that is guaranteed to be available to a dataset.