07-15-2012
Well, it can't be a mirror as at least two devices are required to create one and it can't be a raid5 as then at least three devices are required so it must be a stripe, although very minimal indeed.
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LEARN ABOUT OPENSOLARIS
devices
devices(4) File Formats devices(4)
NAME
devices, devid_cache, snapshot_cache, mdi_scsi_vhci_cache, mdi_ib_cache, devname_cache - device configuration information
SYNOPSIS
/etc/devices
/etc/devices/devid_cache
/etc/devices/snapshot_cache
/etc/devices/mdi_scsi_vhci_cache
/etc/devices/mdi_ib_cache
/etc/devices/devname_cache
DESCRIPTION
The directory /etc/devices is a repository of device-related data. Files in this directory are used to preserve this information across
reboots and are created and updated as necessary by the system.
There are no administrative actions necessary with respect to files in /etc/devices. Should the contents of a file become corrupted or an
update fail, the file can simply be removed. The system re-creates the file as necessary.
SEE ALSO
devfsadm(1M), dev(7FS), ddi_devid_compare(9F), ddi_devid_compare(9F)
NOTES
Files in this directory do not constitute an API. Files might not exist or might have a different content or interpretation in a future
release. The existence of this notice does not imply that any other documentation that lacks this notice constitutes an API.
SunOS 5.11 8 Jun 2006 devices(4)