3.2 Derecho a la comunicación de la situación de privación de libertad
3.2.1 Derecho a informar a un tercero de la privación de libertad
Each NetServer runs a modified SunOS kernel that communicates with the intelligent Auspex processors to enhance NetServer performance. Most UNIX services come directly from SunOS for complete compatibility. However, Auspex makes some changes to the Sun operating system to integrate the Auspex processors into the standard operating system.
Note: The majority of the SunOS standard utilities and files remain
unchanged. This publication documents the changed portions of SunOS only; it does not document the unchanged portions. Consequently, it is very
important that you have the SunOS documentation. To obtain the latest
documentation, contact Sun Express at 1-800-USE-SUNX, or Auspex.
The most significant changes to SunOS are listed in Table 1-2. Not all of the changes are described in the rest of this guide because some changes (for example, the ax_statd(8) daemon) are transparent to the system administrator. For information about the more visible changes, see the appropriate man page.
Table 1-2. Changes to SunOS
Types of changes Description
For further information, see
Added or modified daemons
Three added daemons coordinate the processors:
ax_startup(8), ax_errd(8), and ax_timed(8). These
daemons, like init(8), must run even in single-user mode.
Additional daemons supporting the NetServer in multiuser mode are ax_statd(8), ax_statd2(8),
ax_keyenvoyd(8), ax_lfsd(8), ax_nfsd(8), and ax_vold(8).
Man pages for:
ax_startup ax_errd ax_timed ax_statd ax_statd2 ax_keyenvoyd ax_lfsd ax_nfsd ax_vold Networking commands and daemons
The nfsstat(8C) command is modified to obtain statistics for the NP and UNIX. Also, an added option (-Iinterface) displays NFS and RPC statistics about
a network interface.
A new command, ax_netstat(8C), displays NP network statistics.
A new command, stopnfsd(8), shuts down the NFS daemons on the NPs.
A new command, ax_arp(8C), displays or flushes the Address Resolution Protocol (ARP) table on an NP. A new command, ax_fddistat(8C), displays status of FDDI and MLT-3 network interfaces.
Man pages for:
nfsstat ax_netstat stopnfsd ax_arp ax_fddistat Performance monitor commands
The Auspex Performance Monitor command,
ax_perfmon(8), gives the system manager the ability
to gather and display NetServer performance data. The ax_perfhist(8) command displays server performance data in histograms.
Commands for virtual partitions
A disk management tool, ax_diskconf(8), displays NetServer disk configuration data, including information about virtual partitions.
vp(4) is the virtual partition device driver.
vpartab(5) is the virtual partition table.
ax_loadvpar(8) loads the partition table.
ax_vold(8) is a daemon that manages the state of
virtual partitions.
ax_vpstat(8) displays the status of virtual partitions.
ax_mattach(8) attaches a new member to a mirrored
partition.
ax_mdetach(8) detaches a member from a mirrored
partition.
ax_mconvert(8) converts a striped or concatenated
virtual partition to a one-membered mirrored partition.
ax_mrestore(8) restores mirrored partitions to an
active state.
“Virtual Partition Commands” on page 5-10
“Virtual Partition File” onpage 5-9 “Expanding a One- Membered Mirrored Partition” on page 5-18 vp man page Commands for Auspex devices
The device ad (for Auspex disk and CD-ROM) was added to the device options that may be used with
boot(8S).
The command MAKEDEV.auspex defines Auspex- specific devices.
The dkinfo(8) and format(8) commands are modified to support Auspex disks; eject(8) supports acd (for Auspex CD-ROMs). Also, ax_label(8) partitions and labels a drive, and ax_lslabel(8) shows a disk’s label and partitioning.
The ax_hot_plug(8) command provides the ability to hot plug drives, that is, the ability to add, replace, or remove disk, tape, or CD-ROM drives while the operating system is running. Removing and adding drives can be done from a single command line. Two additional device commands, ax_add_device(8) and ax_remove_device(8), also provide hot-plug capabilities.
“Device Names” on page 4-2
“Using the Format Command”on page 4-36 for format “Using CD-ROM Drives”on page 4-5 for
eject
“Adding or Replacing a Drive” on page 4-25 Man pages for:
MAKEDEV.auspex dkinfo
ax_lslabel ax_label
Naming conventions for storage devices
Auspex disk drives are named adn. Tape drives are named rastn or nrastn. CD-ROM drives are named
acdn. (n is the slot where the drive is installed.)
DriveGuard arrays are named ardn, where n is the number of the array.
“Device Names” on page 4-2
Table 1-2. Changes to SunOS (Continued)
Types of changes Description
For further information, see
File systems An added file system type, LFS, acts as an interface between the operating system and file systems mounted on the File Processor. In general, LFS remains transparent.
The NetServer uses the standard 4.2 file system type for its / (root), /usr, and /var file systems.
exports(5) is modified to add an option allowing
asynchronous writes to exported file systems. Many other standard utilities, including df and du, are modified to support LFS and 72-GB file system capacity.
A file system on a virtual partition can exceed 2 GB. Up to 72-GB file systems can be created on an Extended Virtual Partition (EVP).
ax_clonefs(8) creates a clone partition of a specified
physical or virtual partition to facilitate online backups.
When the server detects a corrupted LFS file system, the File Processor isolates the file system so it does not affect the operation of the server. When you are finished repairing the file system, use ax_fsutil(8) to put it back on line.
The ax_expand(8) command enlarges a file system on a concatenated or striped virtual partition.
fsck(8) allows you to repair a file system even when it
is mounted, provided the File Processor has taken the file system offline.
ax_kill(8) kills all processes sleeping on an isolated
file system. It is useful when the isolated file system can not be repaired by fsck and added back online. Once the processes are killed, you can unmount and replace the bad disk that caused the file system isolation.
“Mounting File Systems on the FP and HP” on page 4-18 “Maximum Size of a Virtual Partition” on page 5-3 “Online Backup” on page 8-12
“File System Isolation” on page 6-10
“Repairing an Isolated File System with fsck” on page 6-13 “Restoring a File System that Cannot Be Repaired” on page 6-15 Man pages for:
mount exports ax_expand Table 1-2. Changes to SunOS (Continued)
Types of changes Description
For further information, see
System
administration tools
Upon a system crash, the getcores.sh(8) command compresses and tars all core files for delivery to Auspex.
When enabled, the reporter.sh(8) command prepares and mails site reports to Auspex Customer Service.
When enabled, and in the event of a system crash, the corescreen.sh(8) command prepares and mails a subset of Processor board cores to Auspex Customer Service.
When enabled, mailmessages.sh(8) prepares and mails reboot messages to Auspex Customer Service. The ax_admmsg(8) command searches for Auspex error messages and generates an error report. The ax_config(8) command accesses configuration date and generates a configuration report.
The ax_load_flash(8) command downloads Flash PROM firmware to specified processor boards.
Man pages for:
getcores.sh reporter.sh corescreen.sh mailmessages.sh ax_admmsg ax_config
“Flash PROM Download Utility” on page 10-7
Other commands unique to Auspex systems
rc(8) is modified to download and start the Auspex
processors.
The ax_write_cache(8) command provides the system manager with a tool for managing and controlling the write cache. To use the write cache feature, you must install the Auspex Write Accelerator on the Storage Processor.
dump(8) is modified to allow you to specify the time
and file system name to be recorded in /etc/dumpdates. This change ensures that the appropriate information is recorded in /etc/dumpdates when you dump a partition created by ax_clonefs.
halt(8) and reboot(8) are modified to include the -s
option, which causes the system not to run sync(2) at reboot. With this change, reboot can complete even if the NetServer has a file system mounted from an unreachable machine. halt(8), reboot(8), and
fastboot(8) now include the -c option, which instructs
the system to perform a cold boot in which all diagnostics are performed.
shutdown(8) is modified with the -l option to send
warning messages only to logged-in users. The option speeds up the shutdown process if the list of machines mounting files is not up to date, or if machines mounting files do not have rwalld(8C) support.
Man pages for:
rc shutdown rwalld Chapter 7, “Write Acceleration” “Dumping a Clone Partition to Tape” on page 8-15
“halt”,“reboot” and “fasthalt and fastboot” on page 3-10
Table 1-2. Changes to SunOS (Continued)
Types of changes Description
For further information, see
For a complete list of files and programs added or modified in SunOS, see the auspex(8) man page, or Appendix A. To see a printed version of the man pages, refer to the Command
Reference Guide.
For each of the system management procedures described in this guide, the Sun Microsystems documentation can provide additional information. Table 1-3 lists basic system management topics and indicates which chapter to consult in Sun’s System and
Network Administration manual.
NeTservices commands
The asu(8) command allows an administrator to manually stop NeTservices, start NeTservices, or reset the daemons with a restart.
stop shuts down NeTservices on all interfaces.
start enables and starts NeTservices on all
interfaces.
restart stops NeTservices on all interfaces, then
immediately starts NeTservices again. This option is useful as a troubleshooting tool. If NeTservices is not functioning correctly, a restart may clear up problems.
help gives information about using the asu
command.
NeTservices Product Guide, NeTservices Administration Guide, and NeTservices Concept and Planning Guide
Table 1-3. Pointers to Sun documentation
Topic Sun chapter number
System administrator’s role 1
Overview of SunOS 2
Booting and shutdown 4
File maintenance 5
System backup and restore 5
Maintaining disks with format 6
Monitoring file system usage 6
Administering security 7
Reconfiguring the system kernel 10
System accounting 11
fsck 12
Adding a modem 13
Line printer 13
Modifying termcap 14
System crash and accompanying messages 16
Table 1-2. Changes to SunOS (Continued)
Types of changes Description
For further information, see
NFS 18
The Name Information Service (NIS) 20
Domain Name Service 21
Electronic mail and communications 23
UUCP 22
sendmail 23
Monitor and boot program error messages Appendix E
Table 1-3. Pointers to Sun documentation (Continued)