metastat command for Solaris

The metastat command is very useful if you have meta devices and or what is known as a hot spare pool. This command basically shows the status of your meta device (basically, a software RAID, or volume) and lets you know if there is a need to do maintenance on any of the drives or what not.
Great tool to have handy, especially if you’ve set up a software RAID. Makes it extremely useful to not only do spot-checks, but see how each physical device is doing within the meta device.