adaptec scsi

Experimental environment: Virtual machine: VirtualBox 5.0.24 r108355 operating system: rhel-server-6.5-x86_64 Saw the Liu Xiang soldier Big: use Udev on Linux 6 to troubleshoot RAC ASM storage device name ProblemsI operated a, previously in the linux5 when I was using asmlib to bind ASM, reference to think twice, I am in the creation of virtual hard disk in the SCSI format of the hard drive, in the Linux 5 when there is no problem, but I am in Linux

device control software unreasonable settings are likely to cause the bus set class failure. In addition, some bus controllers themselves in the installation of the use of some of the correct settings to be used well, such as the IDE device master-slave disk problem, SCSI device ID number problem and so on. 5, Bus equipment failure bus and bus devices are always indispensable, and this derived from the bus equipment class fault is definitely stra

I. Environment Description RHEL 6.6 + Oracle 11.2.0.4 storage replacement, need to add a new disk, replace the old storage disk, the following is the test steps. II. test process [[[emailprotected] ~]# cd/etc/udev[[emailprotected] udev]# lsmakedev.d rules.d udev.conf[[email protected] udev]# CD rules.d/[[emailprotected] rules.d]# ls55-usm.rules 60-pcmcia.rules 70- Persistent-net.rules 98-kexec.rules60-fprint-autosuspend.rules 60-raw.rules 90-alsa.rules 99- Oracle-asmdevices.rules60-openct.rules

+ repair-know-net (w_ww*dnw_xzs*co_m) (2) Eide interface The Eide interface is much better than the IDE interface and is currently the most popular interface. First, the peripherals it supports are no longer 2 but 4, supported devices in addition to the hard disk, including CD-ROM drive disk backup devices, and so on. Second, the Eide standard cancels the 528MB limit and replaces it with the 8GP limit. Third, the Eide has a higher data transfer rate and supports PIO Mode 3 and Mode 4 standard

register * @ sht: template for SCSI host * Register initialized ata host. @ host is allocated using * ata_host_alloc () and fully initialized by LLD. this function * starts ports, registers @ host with ATA and SCSI layers and * probe registered devices. * locking: * inherited from calling layer (may sleep ). * returns: * 0 on success,-errno otherwise. */ int ata_host_register (struct ata_host * H

1: Due to work, I have been engaged in the development of 2 * 36port Expander in LSI for the past few months. It mainly parses and processes the SSP, SMP, and SES command protocols in SAS. The SDK of LSI uses the threadx operating system. The kernel of its chip is ARM920T, which provides the SAS protocol processing function at 920t. I personally feel that the Code style is not good. My personal understanding of expander is as follows: The lsisas2x36 is a 36-port, 6.0-Gbit/s Serial Attached

. It is a device file, more specifically, it is a device node. This node is created using the mknod command, which specifies the master device number and secondary device number. The primary device number indicates a certain type of device, which generally corresponds to a specific driver. The secondary device number generally distinguishes different attributes, such as different usage methods, locations, and operations. This device number is obtained from the/proc/devices file. Therefore, the d

after high frequency, the function of opening an error significantly reduces the chance of errors. However, the error correction is performed at the cost of system performance, and some CPUs with higher performance will become worse if the function is turned on. It seems that stability and speed cannot be both done. It depends on how you think about it.5. Quick power on self test (quick self-check)With this option enabled, the system will ignore some BIOS self-recommended processes to make the

ISCSI technology is a SCSI instruction set that is developed by IBM and used by hardware devices to run on the upper layer of the IP protocol, this command set allows you to run the SCSI protocol on an IP network so that it can select routes on high-speed Gigabit Ethernet. The biggest benefit of iSCSI is that it can provide a fast network environment. Although there are still some gaps between its performan

A little Linux every day-hard disk knowledge today, disk interfaces are mainly divided into two types: IDE (IntegratedDriveElectronics), SCSI (SmallComputerSystemInterface ). They each have some differentiation or evolution, so the technical terms on disk interfaces... A little Linux every day-hard disk knowledge today, disk interfaces are mainly divided into two types: IDE (Integrated Drive Electronics), SCSI