Mac OS X: How to rebuild a software RAID mirror


 
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Old 11-13-2008
Mac OS X: How to rebuild a software RAID mirror

Note: This article applies to Mac OS X 10.2 or later and Mac OS X Server 10.2 and later. Occasionally, Disk Utility may report that a software mirror has become degraded and that it must be rebuilt. In such a situation, one drive has become out of sync with another. To rebuild the software mirror, follow these steps below. Warning: Before proceeding, you must back up of all data, because failure to follow the steps correctly may result in data loss.

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MOUNT_WEBDAV(8) 					    BSD System Manager's Manual 					   MOUNT_WEBDAV(8)

NAME
mount_webdav -- mount a WebDAV filesystem SYNOPSIS
mount_webdav [-s] [-S] [-i] [-v volume_name] [-o options] [scheme://]host[:port][/path] node DESCRIPTION
The mount_webdav command mounts the WebDAV-enabled server directory at [scheme://]host[:port][/path] at the mount point indicated by node. The user and group IDs for all files and directories are set to unknown, and the permissions default to read, write and execute for user, group and other. The arguments and options are: -s Require that authentication credentials be sent securely to the server. Note: If this option is not set, sending authentication cre- dentials insecurely to the server will be allowed but will be logged. -S Suppresses all user interface including the authentication dialogs and the non-responsive ("disconnect") server dialogs. If the server connection becomes non-responsive, the file system is immediately unmounted when this option has been used. -i Interactive mode, you are prompted for the username and password. -o Options passed to mount(2) are specified with the -o option followed by a comma-separated string of options. See the mount(8) man page for possible options and their meanings. If connecting to a Class 1 compliant WebDAV server, the rdonly option will be set even if it was not specified because mount_webdav will not allow files to be opened with write access on servers which do not support the DAV LOCK method. -v volume_name Allows the volume_name attribute (ATTR_VOL_NAME) returned by getattrlist(2) to be specified. If the volume_name is not specified, the last path component name of the node path is used as the volume_name. [scheme://]host[:port][/path] The WebDAV-enabled server directory (collection resource) to mount as a volume. The scheme, if specified, must be "http://" or "https://". If the scheme is not specified, then "http://" is used. If the port is not specified, then port 80 is used when the scheme is "http://" or port 443 is used when the scheme is "https://". If the path is not specified, then the path "/" is used. node Path to mount point. Note: The mount point directory must be created or exist before issuing the mount_webdav command. EXAMPLES
The following example illustrates how to mount the WebDAV-enabled server directory http://idisk.mac.com/membername/ at the mount point /Volumes/mntpnt/. Note: The mountpoint directory /Volumes/mntpnt/ must be created before issuing the mount_webdav command. mount_webdav http://idisk.mac.com/membername/ /Volumes/mntpnt/ DIAGNOSTICS
The mount_webdav utility exits 0 on success, and >0 if an error occurs. Here is a list of common results (other error results not listed may be returned): 0 mount_webdav successfully mounted the server directory. [ENOENT] The server directory could not be mounted by mount_webdav because the node path is invalid. [ENODEV] The server directory could not be mounted by mount_webdav because it is not WebDAV-enabled or because it does not exist, or because node does not have proper access. [ECANCELED] The server directory could not be mounted by mount_webdav because the user did not provide proper authentication creden- tials. COMPATIBILITY
As noted above, the -afd option is considered deprecated in Mac OS X 10.4 and may not be supported in future releases. Use the FSMountServer- VolumeSync() and FSMountServerVolumeAsync() APIs in CarbonCore/Files.h instead. SEE ALSO
mount(2), unmount(2), mount(8) getattrlist(2) HISTORY
The mount_webdav command first appeared Mac OS X Version 10.0. Support for HTTP Digest Access authentication was added in Mac OS X Version 10.1.1. Support for the https URL scheme, and for additional authentication methods and proxies supported by the CFNetwork framework were added in Mac OS X Version 10.4. Mac OS X October 27, 2008 Mac OS X