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nscadm(1m) [opensolaris man page]

nscadm(1M)						  System Administration Commands						nscadm(1M)

NAME
nscadm - network storage control utility SYNOPSIS
nscadm freeze device nscadm unfreeze device nscadm isfrozen device DESCRIPTION
The nscadm command performs several network storage control functions. The nscadm freeze command closes existing references to the specified device, and blocks future accesses. This allows maintenance of vir- tual volume device drivers (for example, RAID 0, RAID 1, RAID 5) to be performed without shutting down the system. The nscadm unfreeze command reverses the effects of nscadm freeze for the specified device. The nscadm isfrozen command returns the current status of the specified device. OPTIONS
The nscadm command supports the following option. -h Display the usage menu. OPERANDS
The nscadm command line supports the following operand. device Specifies the storage device to be acted upon by nscadm. EXIT STATUS
For the freeze and unfreeze, subcommands nscadm returns the following exit values: 0 Success 255 Error For the isfrozen subcommand, nscadm returns the following exit values: 0 Device is currently frozen. 1 Device is not currently frozen. 255 Error ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscmr, SUNWscmu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
scmadm(1M), attributes(5) SunOS 5.11 2 Oct 2007 nscadm(1M)

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devattr(1M)						  System Administration Commands					       devattr(1M)

NAME
devattr - display device attributes SYNOPSIS
devattr [-v] device [attribute...] DESCRIPTION
devattr displays the values for a device's attributes. The display can be presented in two formats. Used without the -v option, only the attribute values are shown. Used with the -v option, the attributes are shown in an attribute=value format. When no attributes are given on the command line, all attributes for the specified device are displayed in alphabetical order by attribute name. If attributes are given on the command line, only those attributes are shown, displayed in command line order. OPTIONS
The following options are supported: -v Specifies verbose format. Attribute values are displayed in an attribute=value format. OPERANDS
The following operands are supported: attribute Defines which attribute, or attributes, should be shown. Default is to show all attributes for a device. See the putdev(1M) manual page for a complete listing and description of available attributes. device Defines the device whose attributes should be displayed. Can be the pathname of the device or the device alias. EXIT STATUS
The following exit values are returned: 0 successful completion. 1 Command syntax was incorrect, invalid option was used, or an internal error occurred. 2 Device table could not be opened for reading. 3 Requested device could not be found in the device table. 4 Requested attribute was not defined for the specified device. FILES
/etc/device.tab ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
getdev(1M), putdev(1M), attributes(5) SunOS 5.10 5 Jul 1990 devattr(1M)
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