How to Create a Striped Metadevice (Command Line)

After checking the prerequisites ("Prerequisites for Creating DiskSuite Objects"), and the preliminary information ("Preliminary Information for Creating Stripes and Concatenations"), create the striped metadevice with the metainit(1M) command. Refer to the metainit(1M) man page for more information.

Do not create a striped metadevice from an existing file system or data. Doing so will destroy data. To create a striped metadevice from existing data, you must dump and restore the data to the metadevice.

Example -- Creating a Striped Metadevice of Two Slices With a 32 Kbyte Interlace

# metainit d10 1 2 c0t1d0s2 c0t2d0s2 -i 32k
d10: Concat/Stripe is setup

The striped metadevice, d10, consists of a single stripe (the number 1) made of two slices (the number 2). The -i option sets the interlace to 32 Kbytes. (The interlace cannot be less than 8 Kbytes, nor greater than 100 Mbytes.) If interlace were not specified, the striped metadevice would use the default of 16 Kbytes. The system verifies that the Concat/Stripe object has been set up.

For more information on setting the interlace value, refer to Solstice DiskSuite 4.2.1 Reference Guide.

Example -- Creating a Striped Metadevice of Three Slices

# metainit d20 1 3 c0t1d0s2 c0t2d0s2 c0t3d0s2
d20: Concat/Stripe is setup

The striped metadevice, d20, consists of a single stripe (the number 1) made of three slices (the number 3). Because no interlace is specified, the striped metadevice uses the default of 16 Kbytes. The system verifies that the Concat/Stripe object has been set up.

Where to Go From Here

To prepare the newly created striped metadevice for a file system, refer to "How to Create a File System on a Metadevice (Command Line)". An application, such as a database, that uses the raw metadevice must have its own way of recognizing the metadevice.