My Centos, Tips,article,how to,guide,intro to centos,

With a lot of detached hardware and software,Include IBM%26reg;System X%26reg;(TM) and IBM%26reg;TotalStorage%26reg;Systems founds working Linux%26reg;Group.The first part that the article is the series tutorial that distributes much share in all,Introduced hardware to configure,Include to understand logic of framework, program the content such as server of terminal of network design, setting and newer firmware.

Brief introduction of series of group of large Linux

The article is to introduce the first to install and set text of large group series.The purpose of this series article is differ in public domain dispersedly of the place, the information that the process place of the Linux group that establishs the job with all sorts of hardware and software needs,Concentration is in a place.But,The ABC that these articles do not plan to introduce to need about designing a place of whole new group of large Linux.The reference material that consults reference material falls please and Red Data Book obtain run-of-mill framework guideline.

The installation of the group of introduction of before two parts of this series,Summarized system of use IBM to run software -- group system manages (Cluster Systems Management,CSM) the hardware that undertake is configured and install.The first article cuts a theme continuously,Introduced hardware to deploy a procedure.The configuration of server of management of the second article introduction and node are installed.The memory back end that this series follow-up article will introduce group,Include to store hardware configuration and IBM share file system -- system of general and collateral file (General Parallel File System,GPFS) install and configure.

When this series can offer systematic framework division and systematic engineer to in 1350 of group of use IBM EServer frame plans and implement Linux group, use.(consult please reference material) .Stem from groom purpose,The likelihood returns a few content in normal group operation to be concerned with group manager.

Part of 1:The general framework of group

Before taking any configuration step,A good design is crucial.Design cent is two parts:

The frame overall arrangement that physics devises type of every kinds of frame (for example,Administrative frame and computational frame) the computer room is designed:During be being installed and be being produced (if both and different) how ought to decorate the join between frame frame to pursue (use at visit of network, power source, console to wait a moment) the cable inside frame joins (use at server of memory, terminal to wait a moment) design of logistic design network includes:Limits of IP address, child net configuration, computer names a standard to wait CSM a moment to configure,Include:List of demand of operating system of setting of custom-built script position, hardware, surveillant demand, custom-built bag, system configures option memory layout,Include file system layout, divisional, duplicate wait a moment

Group of give typical examples (consult please graph 1) complete by be based on Intel%26reg;Or the computer of IBM Systems of AMD and additional TotalStorage subsystem is formed (about the more information of these systems,Consult please reference material.) for simple for the purpose of,The interior that provides group with cable of net of aether of thousand million copper cash joins.Cable can use Bonded/port-channeled/etherchannel link to raise the bandwidth between frame below most circumstance,Offer favorable transmission rate therebyThe relay that inserts oneself to like here .

Network develop attacks use astral shape structure,All frame receive those who manage frame repeatedly backward advocate switching equipment.Group of give typical examples uses three networks:One is used at management / data (computational network) ,One is used at group file system (memory network) ,A government that is used at managing sexual facility.Before two networks are common IP network.Most task uses computer network,Include the communication between the process (for example MPI) manage with group.The communication that stores the network is used technically at group file system and visit.

Graph 1. Group wears composition of a picture

A few additional designs of group of give typical examples and layout detail include:

Manage a server-- the function that governs a server can be put on a server or much stage server.In only station service system environment,Administrative server moves with independent mode.Also can install tall usability to manage a server.Can use CSM tall usability (HA) software undertakes between two servers " the heartbeat checks " ,In malfunction the dynamic breakdown screen between server of the management when the circumstance.Another kind of when introduce additional management server feasible method is:When HA is not important in the environment,Use duplicate setting.Below this kind of circumstance,Can back up the data that manages a server to other activity system,Can move a setting to will back up through the hand the system is online so that take-over,government works (if be necessary) .In graph 1,Administrative network join shows with red.Managing a server is CSM server,Function of its use CSM controls group technically:Responsible system setup, surveillant, safeguard and other job.In this group,Only one manages a server.


Memory server and disk -- can use a variety of mechanisms to store much stage the server joins to the back end that is based on disk.Can use both with cable of fiber-optic, copper or union,Join memory to group directly,Perhaps carry network of memery block region (SAN) switching equipment joins (consult please graph 1) .These servers offer the memory that share to visit for the other server in group.If need data to back up,Join backup equipment to memory server with additional cupreous cable or fiber-optic link please.To group of give typical examples,The backup end of memory is a single entity,Offerred those who step group to share file system to visit.The detail of the hardware of memory of an article introduction of this series and setting of group file system, configuration and implementation.


User node -- below good case,The computer node of group should not accept exterior connection,Ought to visit through managing a server by the administrator only.Systematic user can log onto user node (or entry node) ,The job that runs them on group.Every user node includes the mirror that contains complete edition function, necessary development tool, compile implement the applied program that supports group with development and all and other content that retrieve result place to need.


Attemper implement node -- to working load moves on group,The user ought to refer his job attemper implement node.In one or more attemper implement move on node attemper implement guardianship program uses booked strategy to run working load on group.Like computer dot,Attemper implement node also ought not to accept the exterior connection that comes from an user.Systematic manager ought to manage them from administrative server.


Computational node -- the working load that these node run group,Accept will attemper oneself implement exercise.Computer node is group in most the part that often uses.Systematic manager can use administrative server easily to reinstall or configure them.


Exterior join -- ministry join is outside give typical examples in graph 1 show with green.These join are regarded to be besides group,So the article will not do a specification more.

Hardware configuration

Assemble good frame and put them in proper locally,Join is very all after cable,Still should do many hardware to configure the job.The article does not introduce to join on the specific cable of some kind of particular group especially detail.The article was used above design of listed group of give typical examples serves as specific give typical examples,Explained the hardware that needs before installing group is configured

Logistic network is designed

When installing group most constant uncared-for task is logistic network design.Below good case,Before implementing group,Logistic design should undertake on paper.After having logistic network to design,Found lead plane file with it.In small-sized group,If there is too much equipment on the network,Can write lead plane document by hand.But,Had better be to generate to name a standard normally,Write a custom-built script next,Make lead plane file automatically.

Ensure all facilities on the network represent in lead plane file.Watch following give a demonstration please (include name of give typical examples) :

Administrative server (server of memory of Mgmt001 - MgmtXXX) (node of computation of Stor001 - StorXXX) (Node001 - NodeXXX) attempers implement node (node of user of Schd001 - SchdXXX) (User001 - UserXXX)

All of this five kinds of computer science departments in naming a standard to involve a network only,And have a network only,It is not quite good to be returned so.Consider memory network and computer network even,And equipment government network.So this file still needs to expand.An address that needs to visit every node of group file system to need memory network to go up.Every node needs two addresses on computational network:At calculating an address with,Another is used at substrate administration controller (BMC) ,BMC is used have hardware surveillance and electric source control.Watch 1 was described with limits of address of IP of give typical examples more comprehensive name a standard.

Express 1. Lead plane file names a standard




DeviceCompute 192.168.0.0/24BMC 192.168.0.0/24Storage 192.168.1.0/24Device 192.168.2.0/24External Ext N/w
Node User001 user001_d user001_s does not have user of Management Server mgmt001 mgmt001_d mgmt001_s mgmt001_m mgmt001_e Storage Server stor001 stor001_d stor001_s stor001_m stor001_e without Scheduler Nodes schd001 schd001_d schd001_s/ do not have without User Nodes node001 node001_d node001_s do not have without Compute Switches without do not have without Storage Switches without Gigb01a without do not have without Terminal Servers without Gigb01b without do not have without Storage Controller A/B without Term001 without do not have without LCM/KVM/RCM without Disk01a/b

When come true,This plan makes as similar as the give typical examples that can visit in download lead plane file.Group of this small give typical examples includes 16 node of computational node, a server of server of a management, a memory, user and one attempers implement node,Put inside two frame,Added relevant equipment.Although did not provide a large group,But already enough to group of this give typical examples,If need,Can expand it easily into bigger group.

Aether network switching equipment

Have two physics network:At computational traffic with,One is used at memory.In every frame,Standard 32 node needs to have switching equipment of mouth of two 48,A switching equipment is in charge of a network.Be in more in diminutive group,Administrative frame still needs two similar switching equipment.To bigger group,48 port may be insufficient still,So the likelihood needs older central switching equipment.

Two advocate network (take no account of equipment government network) the configuration that every switching equipment needs each are not identical,Because (resemble be in give typical examples in that way) ,The join between net of thousand million aether is used in memory network giant frame,And the frame that uses standard measurement on computer network.The setting of equipment government network normally very simple:Two kinds of networks of smooth on switching equipment of 10/100 million layer can satisfy equipment management to ask,Need not do a specification more so.

A of give typical examples:Extreme Networks (ultimate network) switching equipment

Mouth of Extreme Networks Summit 400-48t 48 is below the configuration measure of switching equipment of network of thousand million aether.

Above all,With string together a mouth to join even cable continuously the serial control port of every switching equipment (9600, 8-N-1, without shed control) ,Use acquiescent user IDadmin,Without the password.(need to press on clew accord with carriage return bolts only.)

To all switching equipment,Implement the following measure please:

Inputunconfig switch all -- like need,Cleared and existing configuration is inputtedconfigure vlan mgmt ipaddress 192.168.2.XXX/24 -- address of setting management IP.Inputconfigure snmp sysname gigbXXX.cluster.com -- name of setting switching equipment.Inputconfigure sntp-client primary server 192.168.2.XXX -- it is setting of NTP server administrative server.Inputconfigure sntp-client update-interval 3600 -- setting time synchronism is horary synchronism.Inputconfigure timezone 0 -- set time zone.Inputenable sntp-client -- the NTP that start.If need,Inputconfigure ports 1-4 preferred-medium copper -- the first selection medium that acquiesces in admiral of port 1-4 is fiber-optic instead copper cable.

Configure on memory network switching equipment now giant frame,Implement the following measure please:

Inputcreate vlan jumbo -- found giant frame Vlan.Inputconfigure "mgmt" delete ports 1-48 -- delete port from Mgmt Vlan.Inputconfigure "jumbo" add ports 1-48 -- add port to Jumbo Vlan.Inputconfigure jumbo-frame size 9216-- set the biggest transmission unit (MTU) size.Inputenable jumbo-frame ports 1-48 -- open is giant frame supports.

Should be in 2 relay is enabled on the join of port,Useenable sharing 47 grouping 47-48 (rise port 47 and 48 combination,47 is made give priority to port) .

Should finish configuration,Complete the following operation please:

Inputsave configuration primary -- write switching equipment configuration into Flash,Such restarting not missing also.Inputuse configuration primary

B of give typical examples:Switching equipment of Force 10 Networks

Switching equipment of Force 10 Networks E600 Multi- Blade Gigabit Ethernet is below (have side of port of two 48) configuration measure,Use at the road by the network (switching equipment of port of central 48 is not quite old still) .

Card of the batholith that carries out the following measure to configure initiative layer, line and port:

With string together a mouth to join even cable continuously the serial control port of every switching equipment (9600, 8-N-1, without shed control) ,User ID and password do not need below acquiesce.Inputenable -- into mode of user of class of unfavorable balance of trade,Password does not need below acquiesce.Inputchassis chassis-mode TeraScale -- it is switching equipment initialization Tera-scale mode.When switching equipment hints,The new switching equipment that start.This should spend on a few minutes of time.After restarting,Receive switching equipment repeatedly,Input againenable Enter super user mode.Inputconfigure -- enter configuration mode.Hint accord with is similar toForce10(conf)#) .InputInterface Range GigabitEthernet 0/0 - 47 (0 of port of 0 of configuration line card arrives 47,Hint accord with is similar toForce10(conf-if-range-ge0/1-47)#) .If need,Inputmtu 9252 -- the setting is giant frame.Inputno shutdown-- allow activation port.Inputexit -- recur configuration pattern.The interface limits of net of thousand million aether is 1/0 - 47.(clew accord with is similar toForce10(conf-if-range-ge0/1-47)#).To every line card repeats measure 7-10.

Carry out the following operation to be layer of 3 (Vlan road by the layer) configuration line card and port:

Receive switching equipment repeatedly,Inputenable Configure mode into user of class of unfavorable balance of trade.Inputint port channel 1 -- configuration port passageway 1.Inputchannel-member gig 0/46-47 -- add the port 46 of line card 0 and 47 to Vlan. Inputno shutdown -- allow port passageway to activation;This option is enclothed inactive / the port of mobile port is configured.Inputip add 192.168.x.x/24 -- the IP address that sets port channel;This is child the gateway of the net.If need,Inputmtu 9252 -- the setting is giant frame.

Now,Open DHCP assistant,Execute the following operation,Span child net transmit DHCP broadcasts:

Inputint range po 1-X -- all passageway port that went to configuration application to a moment ago was configured.Inputip helper 192.168.0.253 -- go to DHCP transmit the IP address that manages a server.

Next,Carry out the following operation to configure switching equipment to achieve long-range administration (with Telnet or SSH) :

Inputinterface managementethernet 0 -- in configuration the configuration on clew accord with administers port.Inputip add 192.168.2.x/24 -- the IP address that installs equipment government network to go up,Join administrative port equipment manages switching equipment.The setting allows ID of long-range connective user and password.

Finally,Inputwrite mem Save switching equipment to configure.

After switching equipment configuration is finished,Completeness can move to check on configuration.Insert an equipment on the differentia of the network please,For example notebook computer,Examination join sex.Most switching equipment can derive their configuration.Consider to be opposite instantly after network setting is proper please the switching equipment configuration of become effective does a backup to copy.

Describe switching equipment of these two give typical examples,Because they offerred 100 % to not have,be block and high-powered net of thousand million aether is exchanged.The switching equipment of Cisco Systems cannot offer what 100% does not have block to take in and send out in large quantities,But also can use.

Terminal server

The large group installation of version is medium before using CSM 1.4,Terminal server is producing main effect.The group that uses inchoate version should rely on terminal server to come the MAC address that collect installation uses.As a result of the compatibility of CSM and systematic UUID,Terminal server is so not important to newer IBM group.But,The hardware that if was used in large group,has some of stale a little,So during the system is installed terminal server is crucial still.Ensure setting of terminal server itself is proper,A large number of time are saved in installing retrospective the process.Besides address of collect MAC,Terminal server still can use enumeration to see terminal arrive all the time from the self check that start the case that enters an operating system.

Ensure the rate of the speed of terminal server baud of every port and join computer matchs.Most computer acquiesce is installed for 9600 baud,So this may not be a problem.Ensure even the join between every system installs terminal server and connective and shed control identical.If terminal server needs the link that test and verify crosses,Install test and verify in CSM please or shut test and verify.

C of give typical examples: MRV switching equipment

The give typical examples that switching equipment of series of MRV InReach LX is below is configured (consult reference material obtains the more information about this switching equipment please.) .Carry out the following operation to configure MRV to get stuck please:

With string together a mouth to join even cable continuously switching equipment is serial control port (9600, 8-N-1, without shed control) .Login by clew.Acquiescent user name is InReach,Take word of command oneself.Inputenable -- enter super user mode with acquiescent countersign System.In equipment configuration screen can see when configuration the first time.Otherwise,Inputsetup Open configuration screen.. Input and save all sorts of necessary network parameter.Inputconfig -- enter configuration mode.Inputport async 1 48 -- configuration port 1 arrives 48.Inputno authentication outbound -- shut in-house test and verify.Inputno authentication inbound -- shut exterior test and verify.Inputno autobaud -- baud of make choice of is led.Inputaccess remote -- allow long-range link.Inputflowcontrol cts -- set hardware shedding control for CTS,Acquiescent setting is on computer of most IBM.Inputexit -- recur configuration pattern.Inputexit -- recur pattern of acquiescent and super user.Inputsave config flash -- save configuration,Make configuration returns existence after restart.

After initiative configuration,Should do with respect to it doesn't matter.Same,The configuration on the setting that should assure to do and connective computer matchs.Shoud be able to log onto terminal server remotely now and undertake administrative to them.Like handling aether network switching equipment together,Can examine the configuration that move,So that go up to undertake to configuration completeness is checked in terminal server (if need) .For example,show port async all char The detailed information that the command returns every port on terminal server.

Firmware upgrades and install BMC address

If appropriate,The firmware that asks examination and newer whole group.Consider the following element please:

Controller of administration of substrate of computer BIOS (BMC) firmware of adapter of network of firmware equipment firmware

Can be in what IBM system gets on the Web site that IBM supports to upgrade %26gt; ,Upgrade to be able to get from the Web site of the manufacturer directly normally on the hardware of the manufacturer especially (consult please reference material) .

Firmware is updated on IBM system

Notice:The likelihood on the area that the method that replaces firmware below is in in you or hardware does not get support.The proposal affirms with the IBM representative of this locality before upgrade.This information just serves as give typical examples with.

The CSM code that uses long-range refresh firmware still lies in development.At present,If need to be opposite,other firmware is updated,Can encounter a big question.With current method cannot reasonably refresh is large group,Need writes a piece of floppy disk or CD mirror,Need to carry out refresh respectively to every computer;Need another kind of method so.If do not have hardware report source control (did not install address of BMC IP) ,Begin from firmware of refresh BMC first please,Make you can install IP address at the same time.Need only one-time press pushbutton of total power supply.To other firmware refresh,The power source that can be opened remotely or shuts a system.

What the give typical examples below is aimed at is IBM Systems 325 or the 326 system that are based on AMD processor.But,Should do a bit only revise,Can apply it to computer of System X.Its principle is to obtain an acquiescent firmware to update a mirror,Undertake modification to its,Such OK should use as PXE starts a mirror.Next,Can start a system through the network,Next unlock mirror,Refresh is relevant firmware.Once install the system into PXE,start,Need open system to be able to have break only.

Setting PXE starts a server

The computer that needs a moving DHCP and TFTP server on the network.The computer that install and runs node of CSM management is an appropriate replacement scheme.But,If be at present on the network,had not installed the computer,The notebook that can use a join to run Linux to the network.Ensure PXE server is in the proper place of the network (in same child inside the net) ,Perhaps ensure switching equipment can request DHPC cross child net transmit arrives correct server.Next,Complete the following step:

Start PXE server with 192.168.0.1 of IP address.Go up in same table computer installation, configuration, start simple DHCP server.A configuration of give typical examples is below:

ddns-update-style ad-hoc;
subnet 192.168.0.0 netmask 255.255.255.0 {
  range 192.168.0.2 192.168.255.254;
  filename %26quot;/pxelinux.0%26quot;;
  next-server 192.168.0.1;
}



Installation, configuration and server of the TFTP that start,In/tftpboot/ Move on.Installationsyslinux,Offer with form of RPM bag on Suse and Red Hat Linux.Along withsyslinux Wrap what install togethermemdisk Andpxelinux.0 The file is copied/tftpboot/.Found catalog/tftpboot/pxelinux.cfg/,Deposit configuration file,Found/tftpboot/firmware/ Deposit firmware mirror.The configuration of acquiescent PXE that will contain the content that wants newer firmware is written/tftpboot/pxelinux.cfg/default,Resemble below such:

serial 0 9600
default local
#default bmc
#default bios
#default broadcom


label local
	localboot 0


label bmc
	kernel memdisk
	append initrd=firmware/bmc.img


label bios
	kernel memdisk
	append initrd=firmware/bios.img


label broadcom
	kernel memdisk
	append initrd=firmware/broadcom.img

As reference,DHCP address is received during PXE when the computer when,Use specific order to search/tftpboot/pxelinux.cfg The configuration file below,The starting configuration that the first document that find is used as to ask the computer.The affirmatory method that searchs order is:Change address of request DHCP into 8 16 is entered make a number,Through expanding child the file name that the net matchs the first times to configuring catalog to search (after every time is searched from right to left delete one digit word) .

For example,Assume computer of a client gets an address from the server during PXE is started192.168.0.2.Search of first time file is to search the 16 of address of this IP to enter make a form/tftpboot/pxelinux.cfg/C0A80002.If this configuration file is nonexistent,The second search is searchedC0A8000,Ordinal analogize.If was not found,match,It is with the namedefault file.So,Put configuration of above PXE in the name to bedefault the file can work for all computers,And no matter the configuration of DHCP how.But,If write configurationC0A800 (192.168.0.0/24 Child net) the number that will reduce a search.

Newer substrate manages controller (BMC) firmware and address of setting IP

Notice:The group node that the product that describes here uses at be based on AMD.But,Similar to be based on the product of Intel to also can be used procedure.Of Intel BMC update bybmc_cfg.exe Program (eitherlancfg.exe) offer,Use address of setting BMC.Can use terminal server,Use the script drive with the similar scenario that offers partly with download this process.And,To be based on the computer of Intel,Can install BMC address in systematic BIOS normally.

After BMC address was installed on node,Can undertake long-range power source is controlled,Such word can configure group easily.But,This kind of method that replaces BMC depends on a network to start,If the computer is in BIOS,start for PXE without the setting so,Can update BIOS first only,Come back to undertake updating to BMC again next.

The BMC firmware with newest download updates DOS mirror,Found floppy disk to start a mirror according to the specification.This mirror is included be calledlancfg.exe program,The IP address that can install BMC with it.Executive common procedure is to insert floppy disk,Start from floppy disk,Undertake updating with floppy disk.But,Use the following command to found PXE to start a mirror from floppy disk on computer of the PXE server that start above all:

dd    If=/dev/fd0 Of=/tftpboot/firmware/bmc.img Bs=1024 

Can edit DOS mirror according to need now.Update to BMC for,Basic mirror itself does not need to do revise,Want a DOS to close engine order to copy a mirror only.From the point of high administrative levels,When the computer appends report,The computer is started through PXE come firmware of refresh BMC,Let the computer move in DOS mirror next.Can pass terminal server to install BMC address originally with a foot,Shut the computer next.Such,The computer that can know all opening to wear is in firmware of refresh BMC,Perhaps wait to install IP address.On the computer that all shutting,Will end this process.Ask those who download to be based on DOS suitably to involve engine order,For exampleatxoff.com Economic tool.Had close opportunity is economic after the tool,In copying it to the mirror according to the measure below please:

mount -o loop /tftpboot/firmware/bmc.img /mnt
cp /path/to/poweroff.exe /mnt
umount /mnt

Revise proper annotate now,Found in front/tftpboot/pxelinux.cfg/default BMC of the setting in the file is acquiesce,Ensure PXE starts configuration file to be able to send correct mirror.After checking a node,From close plane position to start all computers,The node of so all need can get updating.After all node started PXE mirror,Ask a configuration to revise a this locality to start,Thereby the smallest the case that turns unexpected break computer (if be started afresh among them) .

Can call nowlancfg Program,Operate it through terminal server (setting of hypothesis BIOS derived through stringing together a mouth terminal,As identical as terminal server configuration) .Can use in Perl scriptlancfg Address of configuration BMC IP,The script of give typical examples that the practicable in downloading a part for example does not support.For example,Should be in gateway address192.168.10.254, child code of net attack by surprise255.255.255.0 the name isRack1 the BMC address that all computers install in node group,Run the following command from computer of the PXE server that start please:

perl set-bmc-address.pl -N Rack1 -g 192.168.10.254 -m 255.255.255.0

Can decide according to oneself setting make this script.When script is finished,The computer after installing address of BMC IP,The DOS that uses a copy to the mirror that start closes engine order to be shut automatically.

Update BIOS

If will acquiescent BIOS installs application to all computers,This measure can implement before above BMC is updated so.The process of refresh BIOS contains two level,If carry out the sentence that was not modified,The acquiesce that leaves factory application is installed.So,The new configuration that need break and applies those who contain group place to need to revise.Download newest BIOS to update DOS mirror please,Found floppy disk to start a mirror by the specification.

The has saved configuration that needs a BIOS order and degree that needs in the light of oneself and setting.For this,Ask a hand to move replace a computer.Start a computer with floppy disk mirror (if the computer does not have soft drive,Can use USB soft drive) .Update according to readme application please,Wait to be finished newlier normally.The new computer that start,Do to the setting of need in BIOS revise.The option that needs a consideration has:Should shut several letter lock to bolt surely (if be on clavier without keypad) , enable string mouth, use the setting that matchs terminal server to install console to weigh directional, setting to start order through stringing together a mouth (make sure Network is before Hard Disk) .Finish after revising,Save revise,Shut the computer.

Go up in another computer (the computer that installed PXE to start for example) ,Load the floppy disk that includes BIOS to update.File of rechristen autoexec.bat,As the backup on floppy disk its,After offerring, use.When this can prevent use this disk to start a system again,Again refresh system.Insert disk a computer that a moment ago was updated and installs good BIOS to configure option,Start from the floppy disk mirror after revising.

When accord with of clew of occurrence DOS,Ensure current job catalog is driver A please: .There is a program to be called on floppy diskcmosram.exe,Can save the configuration of BIOS to disk with it.Run this program to save BIOS setting to floppy disk,Following place are shown:

cmosram /load:cmos.dat

The setting is putautoexec.bat After the file,OK applying updated.As completeness test,Check floppy disk mirror on a computer please,Examine refresh to undertake whether automatically,Whether to apply proper configuration.Can notice the system still is leaving after BIOS refresh.The similar method in can using BMC to replace a part,Through using fromautoexec.bat The DOS that calls in the file involves machine tool,Shut a system automatically after BIOS refresh.

After updating mirror satisfaction to revising the BIOS after,Can use the following command to found PXE to start a mirror with floppy disk:

dd    If=/dev/fd0 Of=/tftpboot/firmware/bios.img Bs=1024 

The PXE of modification acquiesce starts configuration file/tftpboot/pxelinux.cfg/default,BIOS mirror is offerred when letting it undertake in the system PXE is started.Now,The system that open receives a network repeatedly,System with respect to BIOS of can automatic refresh do not need an user to input,The BIOS with correct application is installed,Close automatically machine.After be being finished newlier,Start instead of the configuration of acquiescent PXE that start from this locality disk,Outside the trade is being sent when preventing the computer to give out PXE to request again.

Update Broadcom firmware

After updating BMC firmware and BIOS,Firmware of newer Broadcom just repeats simply of same idea.Operate by the following measure please:

Firmware of download Broadcom (consult please reference material) ,Found floppy disk to start a mirror by the specification.The command below in order to founds PXE to start a mirror from floppy disk:dd if=/dev/fd0 of=/tftpboot/firmware/broadcom.img bs=1024"
The command below in order to loads mirror file circularly:mount -o loop /tftpboot/firmware/broadcom.img /mnt
Close those who be based on DOS engine order copies mirror catalog.Reviseautoexec.bat File,Update Broadcom firmware automatically with mode with unmanned ginseng,Shut the computer automatically when be finished newlier.For example,To IBM Systems 326,Machine type is 8848,autoexec.bat The file may resemble below such:

@echo off
call sramdrv.bat
echo.
echo Extracting files...
call a:\bin.exe -d -o %ramdrv%\update %26gt;NULL
copy a:\command.com %ramdrv%\command.com
copy a:\atxoff.com %ramdrv%\atxoff.com
set COMSPEC=%ramdrv%\command.com
if exist NULL del NULL
%ramdrv%
cd \update
call update.bat 8848
cd \
atxoff



Uninstall a mirror.Check acquiescent configuration/tftpboot/pxelinux.cfg/default,Ensure the computer can start firmware to update for Broadcom adapter.The computer that the need that start replaces.Restore configuration to PXE of this locality disk to configure.

After crossing group to update firmware,Can continue the setting of hardware,Because had newest firmware code,Occurrence problem of very few meeting.But,If need is other newer,Can repeat newer procedure at any time.And,The firmware that the principle that this kind of firmware uses newlier also can use the other type that needs break,Want to be able to be started from PXE only get firmware is updated.

Last word

The hardware that the article summed up group of large Linux configures a specification.Install group of large Linux The measure that the article of series follow-up installs the introduction group software,The configuration that issues an article to include administrative server and the content that node installs a process.

Textual link:Http://www.ibm.com/developerworks/cn/linux/es-linuxclusterintro/index.html