The server| server uses a reference that first adds the SQLDMO object, SQLDMO is a COM object, not. NET objects
The following function returns an array of lists of SQL Server servers in the local area network.
Private string[] Getallservers
Many times when the webmaster in the registration domain name is to think of what domain name to register what domain name, but many stationmaster's domain name is not included after registering, this is what reason? I registered a domain name in
Healing the best medicine is time, with the fleeting time, many Baidu K station webmaster, Seoer has returned to calm, it should be a serious reflection on how to rerun the site.
In fact, I believe, really tangled in "by Baidu K Station", holding a
Now the exchange of links, it seems that everyone has added a new audit link good or bad standards, in addition to the site's PR, Baidu included, the homepage is first, the number of export links, such as the number of imported links, and now more
Some time ago to test the installation of Microsoft's Windows Server 2008, the recent use of the plan to delete it. Because my PC also has Windows Server 2003 installed, I go to the 2003 directly formatted 2008 partition of the system and then go to
can be displayed through the command, and HP, IBM and other servers through the above command is not displayed. The Dell BMC can be viewed only by installing the hardware manufacturer's administrative tools.
Cat/proc/scsi/scsi
You can see the device on the SCSI. You can see the RAID level in general. LSPCI can see the model of the raid card.
==========================================================
RPM-IVH megacli-1.01.09-0.i386.rpm
command to use:
Megacli-ldinfo-lall-
customize the installation directory, for example: rpm–relocate/opt/=/usr/sbin/-I MEGACLI-1.01.24-0.I386.RPM replaces the installation directory/opt with/usr/sbin. : Http://www.lsi.com/support/downloads/megaraid/miscellaneous/linux/Linux_MegaCLI_1.01.24.zip I introduce here to install under/OPT.1. First introduce the Linux system itself to viewSoftware RAID: View information such as RAID level, status, etc.#Cat /proc/mdstatHardware RAID: View RAID vendor, model, levelgrep -i raid#cat /PROC/SCSI
.
Some information about the exported discovery is empty.
command to check this machine, it is indeed a null value.
Investigation. An error was found.
View the details of the interface: sudo smartctl-d scsi-a/dev/sda
The array card needs to be installed special tools MegaRAID view.
Download: Ftp://download2.boulder.ibm.com/ecc/sar/CMA/XSA/ibm_utl_sraidmr_megacli-8.00.48_linux_32-64.zip. (If the connection is not available, or if it is slow, you can find me)
Installation.#un
New version of megacli-1.01.24-0.i386.rpm (: Http://www.lsi.com/downloads/Public/MegaRAID Common Files/8.02.16_megacli.zip The package will install the program under/OPT, of course, you can also customize the installation directory, for example: RPM--relocate/opt/=/usr/sbin/-I megacli-1.01.24-0.i386.rpm (that is, the installation directory/opt replaced/usr/ Sbin). (There is a megacli file in the Linux folder with I386 RPM) related commands and their resolution: view machine model # Dmidecode |
Linux RAID card optimization and Linux raid OptimizationIntroduction
Our production servers often use raid storage. But can raid alone ensure high performance and data security? The answer is no. We generally recommend using raid cards with battery protection. This ensures performance and ensures data security, but also requires frequent battery maintenance; for cost reasons, a RAID card uses a lithium battery. Because the lithium battery has a strong inertia, it will slowly discharge itself in
seen in general. LSPCI can see the model number of the RAID card.==========================================================RPM-IVH megacli-1.01.09-0.i386.rpmcommand to use:Megacli-ldinfo-lall-aall RAID Level CheckMegacli-adpallinfo-aall Check RAID card informationMegacli-pdlist-aall Viewing hard disk informationMegacli-adpbbucmd-
The new version of MEGACLI-1.01.24-0.I386.RPM installs the program under/OPT and can customize the installation directory, for example: rpm–relocate/opt/=/usr/sbin/-I megacli-1.01.24-0.i386.rpm to replace the installation directory/opt into/usr/sbin. Download Address: Http://www.lsi.com/support/downloads/megaraid/miscellaneous/linux/Linux_MegaCLI_1.01.24.zip I introduce here to install under/OPT.1. First introduce the Linux system itself to viewSoftware RAID: View RAID levels, status, etc inform
Original http://www.mysqlsupport.cn/megacli-study/
Author: Wu Bingxi Source: http://www.mysqlsupport.cn/contact information: wubingxi # gmail.com reprint please indicate/translator and source, and cannot be used for commercial purposes, offenders must investigate.
Megacli common parametersMegacli-adpcount [display the number of adapters]Megacli-adpgettime-aall [display adapter time]Megacli-adpallinfo-aall
:0successful Diagnostics Completio N On:n/asas Address (0): 0x50000c0f02e5b8eesas address (1): 0x0connected Port number:2 (path0) Inquiry data:wd WD300 1BKHG D1s6wx11e83nu081FDE capable:not capablefde Enable:DisableSecured:UnsecuredLocked:UnlockedNeeds EKM attention:noforeign state:none Device speed:6.0gb/slink speed:6.0gb/smedia type:hard Disk devicedrive temperature:28c (82.40 F) PI Eligibility:nodri ve is formatted for PI information:NoPI:No PIPort-0:P ort status:activeport ' s linkspeed:6.0g
data:wd WD300 1BKHG D1s6wx11e83nu081FDE capable:not capablefde Enable:DisableSecured:UnsecuredLocked:UnlockedNeeds EKM attention:noforeign state:none Device speed:6.0gb/slink speed:6.0gb/smedia type:hard Disk devicedrive temperature:28c (82.40 F) PI Eligibility:nodri ve is formatted for PI information:NoPI:No PIPort-0:P ort status:activeport ' s linkspeed:6.0gb/sport-1:P ort status:a Ctiveport ' s linkspeed:unknowndrive has flagged a s.m.a.r.t alert:noexit code:0x00As can be seen from the above
[display the number of adapters]MegaCli-AdpGetTime-aALL [display adapter time]MegaCli-AdpAllInfo-aAll [show all adapters]MegaCli-LDInfo-LALL-aAll [display information of all Logical Disk groups]MegaCli-PDList-aAll [display all physical information]MegaCli-AdpBbuCmd-GetBbuStatus-aA
greatly improves RAID card write performance, which in most cases reduces the system IO load. The reliability of the data is guaranteed by the raid card's BBU (Battery Backup Unit).
Writethrough: Data writes do not use caching and data is written directly to disk. RAID Card write performance is degraded, and in most cases this setting causes system IO load to rise.
Cache policy for Megasas RAID cardsFor LSI's Megasas RAID card, the default cache policy is: WriteBack, Readaheadnone, Dir
1. Various operators(1) Arithmetic operators+-*/% ()(2) Self-increment decrement operatora++ ++a A----aIf it is added first, a plus after operation will be givenIf it is a post-add, it will be given a plus after the first operation.(3) Logical operators | | Or! Non -(4) Relational operators (comparison operators)> = = Judge content, do not care about type= = = Care about both content and type of
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