Metadevice names begin with the letter "d" followed by a number (for example, d0 as shown in Table 1-4).
What are the default metadevice names?
DiskSuite has 128 default metadevice names from 0-127. Table 1-4 shows some example metadevice names.
/dev/md/dsk/d0 |
Block metadevice d0 |
/dev/md/dsk/d1 |
Block metadevice d1 |
/dev/md/rdsk/d126 |
Raw metadevice d126 |
/dev/md/rdsk/d127 |
Raw metadevice d127 |
Can metadevice names be abbreviated?
Yes. Instead of specifying the full metadevice name, such as /dev/md/dsk/d1, you can use d1. You can use either the command line interface or DiskSuite Tool to name metadevices.
What is the maximum number of metadevices possible?
1024 (though the default number of metadevices is 128). You can increase the number of default metadevices by editing the /kernel/drv/md.conf file. See "System and Startup Files" for more information on this file.
Where are metadevice names stored?
Like physical slices, metadevices have logical names which appear in the file system. Logical metadevice names have entries in /dev/md/dsk (for block devices) and /dev/md/rdsk (for raw devices).
Can metadevices be renamed?
Yes. DiskSuite enables you to rename a metadevice at any time, as long as the name being used is not in use by another metadevice, and as long as the metadevice itself is not in use. For a file system, make sure it is not mounted or being used as swap. Other applications using the raw device, such as a database, should have their own way of stopping access to the data.
You can use either DiskSuite Tool (via a metadevice's Information window) or the command line (the metarename(1M) command) to rename metadevices.
The metarename(1M) command with the -x option can "switch" metadevices that have a parent-child relationship. Refer to Solstice DiskSuite 4.2.1 User's Guide for procedures to rename and switch metadevices.