Section 8: administration and privileged commands
cns_ssi – administer a server side inventory Synopsis cns_ssi command [options] dirpath Description The cns_ssi utility displays and maintains server side inventory files created by the XrdCnsd daemon. Complete HTML documentation can be found at http://xrootd.org/doc/prod/cms_config.htm Notes Documentation for all components associated with cns_ssi can be found at http://xrootd.org/docs.html Diagnostics Errors yield an error message…
cnid_metad – start cnid_dbd daemons on request Synopsis cnid_metad [-d] [-h hostname] [-p port] [-u user] [-g group] [-s cnid_dbdpathname] Description cnid_metad waits for requests from afpd to start up instances of the cnid_dbd daemon. It keeps track of the status of a cnid_dbd instance once started and will restart it if necessary. cnid_metad is normally started at boot time…
cnid_dbd – implement access to CNID databases through a dedicated daemon process Synopsis cnid_dbd dbdir ctrlfd clntfd Description cnid_dbd provides an interface for storage and retrieval of catalog node IDs (CNIDs) and related information to the afpd daemon. CNIDs are a component of Macintosh based file systems with semantics that map not easily onto Unix…
cnfsstat – Show usage of CNFS buffers Synopsis cnfsstat [-ahpPsv] [-c class] [-i seconds] [-l [seconds]] [-m buffer] Description cnfsstat reads pathetc/cycbuff.conf and pathetc/storage.conf to determine which CNFS buffers are available. It then reads the specified cyclic buffers and shows their usage status. cnfsstat can be invoked from rc.news if docnfsstat is set to true…
cnfsheadconf – Read and write CNFS headers Synopsis cnfsheadconf [-hw] [-c class] Description cnfsheadconf reads pathetc/cycbuff.conf and pathetc/storage.conf to determine which CNFS buffers are available. It then reads all of them or the specified cyclic buffer via the -c flag, and modifies the header as directed by the interactive user if -w is used. Options…
cmsd – Cluster Management Services daemon Synopsis cmsd [options] -c configfile Description The cmsd daemon provides cluster services to xrootd data servers. Usage synopsis can be displayed by typing "cmsd -h". Complete HTML documentation can be found at http://xrootd.org/doc/prod/cms_config.htm Notes Documentation for all components associated with cmsd can be found at http://xrootd.org/docs.html Diagnostics Configuration errors…
cmirrord_selinux – Security Enhanced Linux Policy for the cmirrord processes Description Security-Enhanced Linux secures the cmirrord processes via flexible mandatory access control. The cmirrord processes execute with the cmirrord_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
cmirrord — cluster mirror log daemon Synopsis cmirrord [-f] [-h] Description cmirrord is the daemon that tracks mirror log information in a cluster. It is specific to device-mapper based mirrors (and by extension, LVM cluster mirrors). Cluster mirrors are not possible without this daemon running. This daemon relies on the cluster infrastructure provided by the…
cmap_overview – Overview of the Configuration Map Overview The CMAP library is used to interact with the configuration database used by corosync. The library provides a mechanism to: * Create of new keys * Change existing keys * Remove keys * Iterate keys with given prefix * Track changes on keys Description of most keys…
cmap_keys – Overview of keys stored in the Configuration Map Overview There are 3 main types of keys stored in CMAP: * Mapping of values stored in the config file. * Runtime statistics. * Other user created values. In this man page, wild-cards have the usual meaning. Keys internal_configuration.* Internal configuration data. All keys in…
cmannotifyd – CMAN Notification Daemon Synopsis cmannotifyd [-f] [-d] Description The cmannotifyd daemon talks to CMAN and provides a mechanism to notify external entities about cluster changes. CMAN dispatches 3 kind of notifications: – CMAN_REASON_TRY_SHUTDOWN when cman requests to all clients if it is allowed to shutdown. – CMAN_REASON_STATECHANGE when cman detects a node joining…
cman_tool – Cluster Management Tool Synopsis cman_tool join | leave | kill | expected | votes | version | wait | status | nodes | services | debug [options] Description cman_tool is a program that manages the cluster management subsystem CMAN. cman_tool can be used to join the node to a cluster, leave the cluster,…
clvmd_selinux – Security Enhanced Linux Policy for the clvmd processes Description Security-Enhanced Linux secures the clvmd processes via flexible mandatory access control. The clvmd processes execute with the clvmd_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
clvmd — cluster LVM daemon Synopsis clvmd [-C] [-d [value]] [-E lock_uuid] [-f] [-h] [-I cluster_manager] [-R] [-S] [-t timeout] [-T start_timeout] [-V] Description clvmd is the daemon that distributes LVM metadata updates around a cluster. It must be running on all nodes in the cluster and will give an error if a node in…
cluster_selinux – Security Enhanced Linux Policy for the cluster processes Description Security-Enhanced Linux secures the cluster processes via flexible mandatory access control. The cluster processes execute with the cluster_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
cloud_init_selinux – Security Enhanced Linux Policy for the cloud_init processes Description Security-Enhanced Linux secures the cloud_init processes via flexible mandatory access control. The cloud_init processes execute with the cloud_init_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
clone – UPS driver clone Note This man page only documents the specific features of the clone driver. For information about the core driver, see nutupsdrv(8). Description This driver, which sits on top of another driver socket, allows users to group clients to a particular outlet of a device and deal with this output as…
clogd_selinux – Security Enhanced Linux Policy for the clogd processes Description Security-Enhanced Linux secures the clogd processes via flexible mandatory access control. The clogd processes execute with the clogd_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
clockdiff – measure clock difference between hosts Synopsis clockdiff [-o] [-o1] destination Description clockdiff Measures clock difference between us and destination with 1 msec resolution using ICMP TIMESTAMP [2] packets or, optionally, IP TIMESTAMP option [3] option added to ICMP ECHO. [1] Options -o Use IP TIMESTAMP with ICMP ECHO instead of ICMP TIMESTAMP messages….
hwclock – query or set the hardware clock (RTC) Synopsis hwclock [function] [option…] Description hwclock is a tool for accessing the Hardware Clock. You can display the current time, set the Hardware Clock to a specified time, set the Hardware Clock from the System Time, or set the System Time from the Hardware Clock. You…