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This chapter contains information about tasks related to RAID 0 volumes. For information about related concepts, see Chapter 7, RAID 0 (Stripe and Concatenation) Volumes (Overview).
The following task map identifies the procedures needed to manage Solaris Volume Manager RAID 0 volumes.
| Task | Description | Instructions |
|---|---|---|
| Create RAID 0 (stripe) volumes | Use the metainit command to create a new volume. | How to Create a RAID 0 (Stripe) Volume |
| Create RAID 0 (concatenation) volumes | Use the metainit command to create a new volume. | How to Create a RAID 0 (Concatenation) Volume |
| Expand storage space | Use the metainit command to expand an existing file system. | How to Expand Space for Existing Data |
| Expand an existing volume | Use the metattach command to expand an existing volume. | How to Expand an Existing RAID 0 Volume |
| Remove a RAID 0 volume | Use the metaclear command to delete a volume. | How to Remove a Volume |
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metainit {volume-name} {number-of-stripes} { [components-per-stripe] | [component-names]…}
For more information, see the following examples and the metainit(1M) man page.
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Caution - Do not create volumes larger than 1TB if you expect to run the Solaris Operating Environment with a 32-bit kernel or if you expect to use a version of the Solaris Operating Environment prior to Solaris 9 4/03. See Overview of Solaris Volume Manager Large Volume Support for more information about large volume support in Solaris Volume Manager.
# metainit d25 1 1 c0t1d0s2 d25: Concat/Stripe is setup
This example shows the creation of a concatenation, d25, that consists of one stripe (the first number 1) made of a single slice (the second number 1 in front of the slice). The system verifies that the volume has been set up.
Note - This example shows a concatenation that can safely encapsulate existing data.
# metainit d40 4 1 c0t1d0s2 1 c0t2d0s2 1 c0t2d0s3 1 c0t2d1s3 d40: Concat/Stripe is setup
This example creates a concatenation called d40 that consists of four "stripes" (the number 4), each made of a single slice (the number 1 in front of each slice). The system verifies that the volume has been set up.
To prepare the newly created concatenation for a file system, see "Creating File Systems (Tasks)" in System Administration Guide: Basic Administration.
To add space to a file system, create a concatenation. To add space to an existing stripe, create a concatenated stripe.
# umount /filesystem
metainit {volume-name} {number-of-stripes} { [components-per-stripe] | [component-names]…}
For more information, see the metainit(1M) man page.
# mount /filesystem
Caution - Do not create a stripe from an existing file system or data. Doing so will destroy data. To create a stripe from existing data, you must dump and restore the data to the volume.
metainit {volume-name} {number-of-stripes} {components-per-stripe} {component-names…} [-i interlace-value]
See the following examples and the metainit(1M) man page for more information.
Caution - Do not create volumes larger than 1TB if you expect to run the Solaris Operating Environment with a 32-bit kernel or if you expect to use a version of the Solaris Operating Environment prior to Solaris 9 4/03. See Overview of Solaris Volume Manager Large Volume Support for more information about large volume support in Solaris Volume Manager.
# metainit d20 1 3 c0t1d0s2 c0t2d0s2 c0t3d0s2 d20: Concat/Stripe is setup
The stripe, d20, consists of a single stripe (the number 1) that is made of three slices (the number 3). Because no interlace value is specified, the stripe uses the default of 16 Kbytes. The system confirms that the volume has been set up.
# metainit d10 1 2 c0t1d0s2 c0t2d0s2 -i 32k d10: Concat/Stripe is setup
The stripe, d10, consists of a single stripe (the number 1) that is made of two slices (the number 2). The -i option sets the interlace value to 32 Kbytes. (The interlace value cannot be less than 8 Kbytes, nor greater than 100 Mbytes.) The system verifies that the volume has been set up.
To prepare the newly created stripe for a file system, see "Creating File Systems (Tasks)" in System Administration Guide: Basic Administration. An application, such as a database, that uses the raw device must have its own way of accessing the raw device.
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