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2025-01-26 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >
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Shulou(Shulou.com)06/03 Report--
View the system IP address: netstat-in
1. View the physical construction information of the AIX server, including the server network configuration information
# prtconf
# ifconfig-a
# lsattr-E-l mem0: view system memory size
# netstat-in: displays the configuration information of each network card in the system
2. Turn on and off the AIX server
# shutdown-F: fast shutdown
# shutdown-I: shut down the system in interactive mode
# shutdown-K: avoid shutting down the system
# shutdown-m: install and run in maintenance mode after shutting down the AIX system service
# shutdown-r: restart immediately after shutting down the server
3. Set the network IP
# smit tcpip
4. View the device information in the system (board, adapter, disk, tape drive, optical drive, network card, processor, etc.)
# lscfg
5. View a device information, such as disk information
# lscfg-l hdisk0
6. Check the AIX host model
# uname-M
7. To view the product part number, serial number and design change level, you can use the-v option
# lscfg-v | more
8. View device information and display title line at the same time
# lsdev-P-H
9. Check the network card information
# lsdev-Cc adapter
# lsdev-Cc adapter | grep ent
Check the number of CPU:
Smtctl
10. View the device properties and other information of the tape drive
# lsattr-l tmt0-D
11. system version information and running environment and other information
# uname-a
# oslevel-r
# oslevel-s
12. Check what software is installed on the system
# lslpp-l
13. View system installation patch information
# instfix-I
# lslevel-s
# oslevel-rq
14. View disk information
# lspv
15. Activate the volume group
# varyonvg datavg
16. View the information of the volume group
# lsvg-o
14. View the details of the volume group
# lsvg rootvg
15. View the setting information of logical volumes in the volume group
# lsvg-l rootvg
16. View the details of logical volumes
# lslv oraclelv
17. View the information of the system's paging space
# lsps-a
18. View system process information, including user ID and process ID,cpu usage
# ps-ef
19. View information about users and processes they own
# ps-fu
20. View the information of a process, such as ssh
# ps-ef | grep ssh
21. Check the disk usage of the system
# df-g
# df-m
# df-k
22. View the status of the system service system
# lager thanks c-a
23. To check whether the ssh service is started, you can use ps-ef | grep sshd, or you can use the following:
# lager thanks c-a | grep sshd
24. Common commands for disk management are as follows:
①: used to list and modify PV related attributes
Lspv chpv
②: used to create and modify VG related properties
Mkvg chvg
③: used to add and reduce disks to a volume group.
Extendvg reducevg
④: used to create, modify, delete, and view LV
Mklv chlv rmlv lslv
⑤: used to create, modify, delete, and list file systems
Crfs chfs rmfs lsfs
25. Common commands for user and group management
①: commands for generating, modifying, deleting, and viewing users
Mkuser chuser rmuser lsuser
Set up oracle users to access the system remotely
# chuser rlogin=true oracle
②: common commands for generating, modifying groups, deleting, and viewing groups.
Mkgroup chgroup rmgroup lsgroup
26. SRC management commands are as follows
①: view the current status of services and service groups
Lhasa, please.
②: used to start and stop src processes
Startsrc stopsrc
③: used to reread the / etc/inittab configuration file and redeploy the startup status of the service.
Telinit
27. Common commands for paging space:
①: used to create, modify, and delete paging spaces
Mkps chps rmps
②: view the usage status of paging operations
Vmstat topas svmon
28. Common commands for host fault identification:
①: used to display system hardware and software errors
Errpt
②: used to add some custom message to the log
Errlogger
③: used to clear previous error messages from the system
Errclear
④: for interactive diagnostic server artifacts
# diag
⑤: used to collect host information and system statistics
Snap
29. View common commands for system installation software
# Lslpp-an is used to display information about the specified fileset.
# lslpp-e shows temporary patches that have been installed.
# lslpp-h displays the history of the specified fileset installed in the update.
# lslpp-l displays the installation of a specified file, including name, version, etc.
# lslpp-L displays all the information about installing a fileset.
30. View the network IP information of the specified interface
# ifconfig en0
31. Activate the en0 interface (up is activated, down is disabled)
# ifconfig en0 up
32. Activate the en0 network port and give the IP address:
# ifconfig en0 10.0.144.1 netmask 255.255.255.0 up
33. Bind ip to the network card to make a network interface have multiple IP addresses, as follows:
# ifconfig en0 10.0.144.1 netmask 255.255.255.0 alias
34. Check user login status
# who
35. Check who I am
# who am i
36. Equipment management of AIX system
In the first example, the letter b: indicates that it is a block device file
In the first example, the letter c: indicates that it is a character device file
37. View the device definition information of the system customization library
# lsdev-C
# lsdev-P | more
38. Scan AIX devices
# cfgmgr: force updates and add new devices
# cfgmgr-l scsi0: used to configure devices connected to the scsi0 adapter.
39. View disk devices
Lspv-l: lists the logical volume information defined in the specified disk (physical volume).
Lspv-p: lists the allocation status of the physical partition PP on the specified disk (physical volume).
Lspv-P: lists the mirror pool location to which the specified disk (physical volume) belongs.
Lsdev-Cc tape: view device information for tapes
Lsattr-El rmt0: view device configuration information for tape rmt0
①: used to create and delete devices: as follows:
# mkdev-l: create a device
# rmdev-dl: completely delete the device and its definition.
②: used to display device information and properties of a device:
# lsdev-C
# lsattr-l
③: used to change the characteristics of a device with a given logical name
# chdev-l
# mkdev
40. Check if the disk is available
# lsdev-Cc disk
41. View system error messages
# errpt-a
①: system error classification:
H: error of hardware failure type
O: errors in operating procedures
S: errors in software failures
U: unable to determine the error of the classification
②: categories in the log:
PERF:AIX devices and components may have been reduced to an acceptable level.
PERM: permanent error, unable to recover.
The availability status of PEND:AIX device components is already very poor
TEMP: a temporary error, that is, an error occurred but ran successfully after a retry.
UNKN: a log that cannot determine the severity of the error
INFO: error log of information type.
42. View system software class error messages
# errclear-d S O
43. Delete everything in the error log directly
# errclear O
44. Start and disable the logging service
# startsrc-s syslogd
# stopsrc-s syslogd
45. View the log daemon
# lager thanks c-s syslogd
46. View all system-defined log files
# alog-L
47. Change the startup log file size
# alog-t boot-s 1024
48. Display console log information, including battery failure information for storage devices
# alog-o-t console | more
49. View the LVM management commands, parameters, time, process ID and other information executed in the system
# alog-t lvmcfg-o
50. Cron process service (same as in Linux)
①: view the running status of a process
# ps-ef | grep cron
②: view automation tasks for the system
# crontab-l
50 23 * * 6 / home/oracle/rman.sh
Format: time-sharing, day, month and week
60. Terminate the process
# kill-9 process number
61. Refresh service
# refresh-g tcpip
62. Start and shut down services
# startsrc-s nfsd
# stopsrc-s nfsd
63. Check the login status of system users
# last
64. Modify the properties of the disk and set the disk to a physical volume
# chdev-l hdisk1-a pv = yes
65. Set the physical volume hdisk2 to unavailable:
# chpv-v-r hdisk2
Set the physical volume hdisk2 to the available state, and create a logical volume on the disk
# chpv-v-a hdisk2
# mklv-y lv_test datavg 10 hdisk2
67. Close the allocation permission of the physical volume hdisk2
# chpv-a n hdisk2
68. Allow physical volumes to allocate space
# chpv-a y hdisk2
# entendlv lvtest datavg 2 hdisk2
69. View the physical volume information contained in the volume group
# lsvg-p datavg
70. View the utilization of paging space
# lsps-s
71. Dynamically increase file system space
# chfs-a size=+100M / test
72. Check the file system / dev/fslv00 and require error repair
# fsck-p / dev/fslv00
73. Check the integrity of the file system / dev/fslv00
# fsck / dev/fslv00
74. View system kernel processes, threads, virtual memory, disk IO, cpu and other information
# vmstat-2 30
# vmstat hdisk1 hdisk2 2 5
# vmstat-v # vmstat-s: summarize memory usage
75. View cpu, adapter, tty device, disk drive, IO, etc.
# iostat 2 10
76. Count 30 times at intervals of 2 seconds, and give a brief account of disk hdisk0.
# iostat-d hdisk0 2 30
# iostat-a 2 30
77. Collect, report or save system activity information, usage of CPU, etc.
# sar-u-P 0pen 1 2 10
# sar-d 2 5
78. View ncargs occupies bytes
# lsattr-El sys0-a ncargs
Adjust ncargs occupancy bytes:
# chdev-l sys0-a ncargs=8 means setting ncargs occupies 8 bytes
79. Check the maxuproc parameter, the maximum number of processes
Lsattr-El sys0 | grep maxuproc
Modify maxuproc parameters
Chdev-l sys0-a maxuproc='5000'
80. Optimization of network parameters of AIX system
No-a | grep ipqmaxlen
No-a | grep rfc1323
No-a | grep sb_max
No-a | grep udp_recvspace
No-a | grep udp_sendspace
No-a | grep tcp_recvspace
No-a | grep tcp_sendspace
Modify parameters command:
No-p-o parameter = value
No-p-o udp_sendspace=65536
Parameter tuning reference:
Ipqmaxlen = 100
Rfc1323 = 1
Sb_max = 1048576
Udp_recvspace = 1048576
Udp_sendspace = 1048576
Tcp_sendspace = 262144
Tcp_recvspace = 262144
80. User unlock
Chsec-f / etc/security/lastlog-a unsuccessful_login_count=0-s oracle
1. Obtain the optical fiber equipment connected to the AIX host:
# lsdev-Cc adapter-S a | grep fcs
Fcs0 Available 09-08 FC Adapter
Fcs1 Available 09-09 FC Adapter
Among them, there are two optical fiber cards. Fcs0 and fcs1
2. Check the WWN number of the optical fiber card
# lscfg-vpl fcs0
Fcs0 U787B.001.DNWG664-P1-C1-T1 FC Adapter
Part Number... 10N8620
Serial Number... 1B74404468
Manufacturer... 001B
EC Level... A
Customer Card ID Number... 5759
FRU Number... 10N8620
Device Specific. (ZM). three
Network Address... 10000000C96E2898
ROS Level and ID... 02C82138
Device Specific. (Z0). 1036406D
Device Specific. (Z1). 00000000
Device Specific. (Z2). 00000000
Device Specific. (Z3). 03000909
Device Specific. (Z4). FFC01159
Device Specific. (Z5). 02C82138
Device Specific. (Z6). 06C12138
Device Specific. (Z7). 07C12138
Device Specific. (Z8). 20000000C96E2898
Device Specific. (Z9). BS2.10X8
Device Specific. (ZA). B1F2.10X8
Device Specific. (ZB). B2F2.10X8
Device Specific. (ZC). 00000000
Hardware Location Code... U787B.001.DNWG664-P1-C1-T1
The red part (Network Address) is the WWN number of the fiber card.
81. View AIX file system cache parameters
Vmo-a
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