adaptec scsi

Physical connection Disk:[Root @ linux117 ~] # Fdisk/dev/sdbc Unable to open/dev/sdbc[Root @ linux117 ~] # More/proc/SCSIAttached Devices:HOST: scsi0 channel: 00 ID: 00 Lun: 00Vendor: VMWare model: Virtual Disk Rev: 1.0Type: Direct-access ansi scsi revision: 02HOST: scsi0 channel: 00 ID: 01 Lun: 00Vendor: VMWare model: Virtual Disk Rev: 1.0Type: Direct-access ansi scsi revision: 02 [Root @ linux117 proc] #

Tags: storage, virtual network, Linux kernelNote: In the previous article on FCoE module design and implementation, we talked about the FCoE module design. Although I have clearly explained the composition of the FcoE module, FCoE is always a little limited from the perspective of the entire storage subsystem, the interaction between the storage sub-system and the network sub-system is not clear. I hope these questions can be answered here.We know that the Linux kernel is a hierarchical design m

current Virtual Console (VC) ... 191 =/dev/vcsa63 tty63 text/property content 7 block loop device (using a common disk file to simulate a piece of equipment) the binding of a loopback device is handled by Mount (8) or Losetup (8) 0 =/dev/lo OP0 1th Loopback Device 1 =/DEV/LOOP1 2nd loopback device ... 8 Block SCSI disk (0-15) 0 =/DEV/SDA 1th SCSI disk (entire disk) =/DEV/SDB 2nd

the Q->MAKE_REQUEST_FN, otherwise the block device registers a private method. In a private method, because there are no queue queues, the specific request is not processed, but the bio is forwarded by modifying the method in the bio, which in the private Make_request method often returns 1, telling generic_make_request Continue forwarding than bio. There are two possible execution contexts for generic_make_request, one for the user context and the other for the kernel thread context where P

Recently, smartctl was used to identify SMART information obtained from a USB hard disk. So I checked the reason carefully. At the same time, remember that when hdparm is used together to sleep the hard disk, the USB hard disk is also a problem. What pass through method is used? At that time, I did not have a deep understanding of it. This time I took a closer look at the Code and related issues. Keywords Hdparm, smartctl, ATA/atapi command set, SCSI

These requirements and recommendations are considered for shared storage clusters: 1. For a non-shared disk with at least one HbA card, such as a system (BOOT) disk, it is recommended to use two HbA cards to connect to an internal disk and mirror the system disk to eliminate single node faults. 2. For a shared disk, there must be at least one HbA card: -To eliminate single node faults, it is recommended to use two HbA cards to connect to the shared disk and use dynamic multi-channel software, s

First, the basic architecture of Fibre Channel FC-4 Upper Layer Protocol:scsi,hippi,sbccs,802.2,atm,vi,ip FC-3 Common Service FC-2 Framing Protocol/flow Control FC-1 Encode/decode FC-0 media:optical or Copper,100mb/sec to 1.062gb/sec Describe: FC-0: Physical layer, customized to different media, transmission distance, signal mechanism standards, also defined fiber and copper interface and electrical Cable Index FC-1: Defining standards for encoding and decoding FC-2: Defines frame, flo

I. Basic architecture of Fiber ChannelFC-4 upper layer protocol: SCSI, hippi, sbccs, 802.2, ATM, Vi, IPThe FC-3 common serviceFC-2 (framing protocol/Flow Control)FC-1 encode/decodeFC-0 media: optical or copper, 100 mb/sec to 1.062 GB/secDescription:FC-0: physical layer, custom different media, transmission distance, signal mechanism standard, also defines the optical fiber and copper interface and electricalCable IndexFC-1: defining encoding and decod

Sometimes we need to add hot-swappable SCSI hard drives to the online system, we cannot stop at this time, we can add the new hard disk to the system with the following instructions# echo "scsi add-single-device 0 0 1 0" >/PROC/SCSI/SCSI//Add HDD# echo "scsi remove-single-de

). After installing Linux, I found that Linux does not know how to use the optical drive. I learned from my friends that the optical drive in the Linux operating system was to be loaded, so I loaded the optical drive according to the methods described in books and magazines, but it was always impossible to succeed. Fortunately, I am unwilling to use Linux without a optical drive. after a winter vacation, I finally found out why I could not use the optical drive correctly. I used to learn about

Advanced SCSI programming interface, may be unified translation called: High-level SCSI programming interface, SCSI the word should not be unfamiliar, in addition to the computer industry is often encountered outside, in my USB series of articles also mentioned repeatedly, First, in the USB series three: Read more from your USB drive, it is mentioned that if the

char other tty devices 0 =/dev/tty current tty device 1 =/d EV/Console System Console (usually/dev/tty0) 2 =/dev/ptmx all Pty master's mutex 7 char virtual console capturing devices (these devices allow both read and write) 0 =/dev/VCs text content of the current virtual console (VC) 1 =/dev/vcs1tty1... 63 =/dev/vcs63tty63 text content 128 =/dev/vcsa text/attribute content of the current virtual console (VC) 129 =/dev/vcsa1tty1 text/attribute content... 191 =/dev/vcsa63tty63 text/attribute cont

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 device node is in the directory only when the driver is i

A Access. chm-Windows Help File Accstat. exe-auxiliary status indicator Advapi32.dll-advanced Win32 application interface Aha154x. MPD-SCSI driver Am1500t. vxt-NIC Driver Am2100.dos-NIC Driver Appstart. ani-Animated Cursor Apps. HlP-Windows Help File Audiocdc. HlP-"easy code decoder" Help File Awardpr32.exe-added printer tools B Bigmem. DRV-bigmem Virtual Device Billadd. dll-dynamic link library (MSW supported) BiOS. VxD-plug-and-play BIOS interface B

Design and realization of remote sensing satellite fast-vision equipmentSun Lei , An Jianping , Bu XiangyuanIn the field of ground source testing, remote sensing satellites need to record high-speed and continuous large-capacity of test sources in order to achieve the purpose of testing satellite sources. In some areas, such as radar signal processing, image communication, high-speed A/D data acquisition and other communications and measurement, it is often necessary to record high-speed data

Linux Target Framework (TGT) aims to simplify various SCSI target driver (ISCSI, Fibre Channel, SRP, etc) creation and Mai Ntenance. The key goals is the clean integration to the SCSI-MID layer and implementing a great portion of TGT in user space.The developer of IET is also helping to develop Linux SCSI Target Framework (STGT) which looks like it might leads to

I. Basic architecture of Fiber Channel FC-4 Upper Layer Protocol: SCSI, HIPPI, SBCCS, 802.2, ATM, VI, IP The FC-3 common service FC-2 (Framing Protocol/Flow Control) FC-1 Encode/Decode FC-0 Media: Optical or copper, 100 MB/sec to 1.062 GB/sec Description: FC-0: physical layer, customized for different media, transmission distance, signal mechanism standards, also defines the optical fiber and copper interface and cable indicators FC-1: defining encodi

In this blog, I want to talk about the principles and implementations of SAN, do you still remember what the back-end storage technology is when I talk about HA and LB clusters in the previous section? NAS network attached storage ), of course, the efficiency of this technology is relatively low. If enterprises have high requirements on data storage speed, this technology will definitely not meet the requirements, so it will lead to the SAN region Network) it provides block-level file sharing. T

I have introduced in detail the usage of Windows system files. I think it is better to transfer it. It may be useful after sharing it! A branchAccess. chm-Windows Help FileAccstat. exe-auxiliary status indicatorAdvapi32.dll-advanced Win32 ApplicationProgramInterfaceAha154x. MPD-SCSI driverAm1500t. vxt-NIC DriverAm2100.dos-NIC DriverAppstart. ani-Animated CursorApps. HlP-Windows Help FileAudiocdc. HlP-"easy code decoder" Help FileAwardpr32.exe-added

int storage_probe (struct usb_interface * INTF, 947 const struct usb_device_id * ID) 948 { 949 structscsi_host * Host; 950 structus_data * us; 951 intresult; 952 structtask_struct * th; 953 954 if (usb_usual_check_type (ID, usb_us_type_stor )) 955 return-enx io; 956 957 us_debugp ("USB Mass storagedevice detected \ n "); 958 959 /* 960 * Ask the SCSI layer to allocate a hoststructure, with extra 961 * space at the end for our privateus