In order to create a spanned volume and file system, the system administrator must use the vxassist command to create and configure the spanned file system. The built-in mirroring capabilities of UnixWare 7 are optional and access to this capability requires users to purchase a license to turn the capability on. Creating a mirror on the system also requires the use of the vxassist command. This will allow mirroring existing or new volumes on the system. Memory can also be dumped selectively for kernel mapped pages and to multiple devices if required.
Administrators use the crash command to diagnose a failed system.
For most system panics, the relevant information needed to diagnose the problem is most often contained in the kernel pages. Thus, it can be advantageous to do a selective dump of only kernel pages, especially on systems with very large physical memory. This will reduce the time it takes to do a memory dump and also reduces the amount of disk space required to hold a dump after a system panic. With this value set, when a system panics, only kernel-mapped pages will be saved in the system dump area. UnixWare 7 supports multi-console products from Boundless Technologies and Maxspeed.