best raid controller card

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

, while the 0,1 and 1+0 three levels support IDE RAID. The so-called RAID 0 is based on at least two hard drives, in IDE raid, it takes CPU time to divide the data stream into chunks of the same size, and then distributes it evenly to two hard drives to complete the transmission; the so-called RAID 1 is to occupy CPU p

Tags: Description enc require start nal alt next improve other Recently encountered a strange problem Receive SMS alert says disk IO is very high replication latency Iostat-x 1 10 information is as follows: The QPS is as follows: The load is very low pressure is very low this is very no solution. Only one MySQL Actually, it's a hardware problem.Megasas RAID card BBU learn cycle backgroundRecently encou

development of computer technology in recent years, the CPU speed of PCs has entered the GHz era. The hard disks of the IDE interface are also lagging behind, and ATA66 and ATA100 hard disks are successively released. This makes it possible to apply RAID technology to low-end or even personal PCs. RAID is usually implemented by the RAID

the same as those on a single hard disk. The difference is that the storage speed of the disk array is much higher than that of a single hard disk, and automatic data backup can be provided.Two features of RAID technology: First, speed Second, security Thanks to these two advantages, RAID technology was applied to hard drive systems with SCSI interfaces in advanced servers in the early days. With the devel

The same thing that I see is the case of the RAID card LSPCI stands for list PCI. Think of this command as "LS" + "PCI". This would display information about all the PCI bus in your server. Apart from displaying information about the bus, it'll also display information about all the hardware devices Connected to your PCI and PCIe bus. For example, it would display information about Ethernet cards,

current BBU properties # megacli-adpbbucmd-getbbuproperties–aall View charge Progress percentage # megacli-adpbbucmd-getbbustatus-aall |grep "Relative State of Charge" query RAID array number # Megacli-cfgdsply-aall |grep "Number of disk GROUPS:" Display RAID card model, RAID settings, DISK related information # me

IntroducedOur production servers often do raid storage, but can you guarantee performance and data security by simply doing raid? The answer is no, we generally recommend the use of battery-protected raid cards, so as to ensure that performance can ensure data security, but also need to maintain the battery frequently, because of the cost of the general

> System Version: Windows xp sp3> problem: the SCSI/RAID Controller Driver cannot be updated. In the Device Manager, the device icon is an exclamation point ". I tried to update the motherboard, video card, sound card, and other drivers. Www.2cto.com> Problem Analysis:After searching the Internet, we found that the SCS

A new Linux server is being taken, ready to check for configuration raid.check for a RAID card first: Copy Code code as follows: # Dmesg|grep-i raid Mptsas:ioc0:attaching RAID volume, Channel 1, ID 0 Device-mapper:dm-raid45:initialized v0.2594l Md:autodetecting

IntroductionOur production servers often do raid storage, but can you guarantee performance and data security by simply doing raid? The answer is no, we generally recommend the use of battery-protected raid cards, so as to ensure that performance can ensure data security, but also need to maintain the battery frequently, because of the cost of the general

:00.0[[email protected]:~] Ethtool-i VMNIC7DRIVER:BNX2XVERSION:1.78.80.V60.12FIRMWARE-VERSION:BC 7.8.55bus-info:0000:11:00.1Gets the type of driver currently used by the host bus adapter[Email protected]:~] esxcfg-scsidevs-avmhba0 lsi_mr3 link-n/a sas.500605b00cbce9e0 (0000: 07:00.0) LSI megaraid SAS Invader Controllervmhba32 iscsi_vmk online iqn.1998-01.com.vmware:594af84f-3e99-cb7d- F42F-E04F43072844-7704B070ISCSI Software Adapter------------------------------------------------View Radi

A few days ago, Huawei Server RH2288 H V2raid card has no battery, or no capacitance, will report the following error:650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/78/40/wKiom1Z46WjTU2sxAAT5wWzFfXo170.jpg "title=" 5a616ca422db75c19624825f914acfec.jpg "alt=" Wkiom1z46wjtu2sxaat5wwzffxo170.jpg "/>It's a little blurry, but you can see it.There are 2 ways to check if the server has batteries or capacitors: There is a ESN on the serve

A couple of days ago I got a 370-interface version of the Promise ATA100 Raid control chip, which is not a good thing. Oh, yes. Good stuff. So want to install Linux Server experiment, the results together normal to installation completed, restart, grub did not appear, the appearance of the NT loader screen. During installation, the RAID 1 level array attached to the RA