adaptec scsi

One of the purposes of the device drivers (Device Driver) Operating System is to conceal the particularity of the hardware devices. For example, the virtual file system presents a unified attempt to install the file system, which is irrelevant to the underlying physical device. This chapter describes how Lin UX manages physical devices in the system. CPU is not the only smart device in the system. Every physical device is controlled by its own hardware. The keyboard, mouse, and serial port are c

Device FDC # ATA and atapi Devices Device ATA Device atadisk # ata disk drives # Device ataraid # ata raid drives Device atapicd # atapi CDROM drives Device atapifd # atapi floppy drives # Device atapist # atapi tape drives Options ata_static_id # static device numbering # SCSI controllers # Device AHB # EISA aha1742 family # Device AHC # aha2940 and onboard aic7xxx Devices # Device ahd # aha39320/29320 and onboard aic79xx Devices # Device amd # amd

# ATAPI CDROM drivesDevice ATAPIFD # ATAPI floppy DrivesDevice Atapist # ATAPI tape DrivesOptions ata_static_id # STATIC device numbering # SCSI Controllers #device ahb# EISA AHA1742 family #device ahc # AHA2940 and onboard aic7xxx devices #device ahd# aha39320/29320 and onboard aic79xx Devices #device amd# amd 53c974 (Tekram DC-390 (T)) #device isp # Qlogic Family #device ispfw# Firmware for Qlogic hbas-normally a module #device mpt# lsi-log

ADWDevice Bt0 at Isa?Device aha0 at Isa?Device Aic0 at Isa?Device NCV # NCR 53c500Device NSP # workbit Ninja SCSI-3Device STG # TMC 18C30/18C50# SCSI PeripheralsDevice SCBUs # SCSI bus (must have if SCSI device is used)Device da # Direct Access (hard disk)Device SA # sequential Access (tapes, etc.)Device CD # CDDevice

300mb/sec, the future will reach 600mb/sec or even more), and because of the use of serial cable, not only can achieve longer connection distance, but also to improve anti-jamming ability, and this thin cable can also significantly improve the internal cooling of the chassis.The current deficiencies of SAS are mainly as follows:1 hard disk, control chip types: Only Seagate, the extension and Fujitsu, such as a few hard disk manufacturers launched the SAS interface hard disk, the variety is too

unix| Backup SCO installation and backup of the tape drive under UNIX (i) Use tape drive to back up data for work reasons. In the implementation process summed up a number of experience for your reference. The server is IBM PC Server 250 (Dual-machine + array cabinet), the operating system is SCO UnixWare 7.1.1, because it is the financial system, also installed a dual-computer software GDS, SYBASE11.9.4 and financial system applications are installed on the disk array, there are now two appli

This article is reproduced in: http://www.jb51.net/article/53707.htm, used only for making notesA disk array can be generated before or after the system is installed, and it is considered a (large) hard disk, and it has fault-tolerant and redundant functionality. The disk array can not only be added to a ready-made system, it can also support capacity expansion, the method is very simple, only need to add a new hard disk and execute some simple instructions, the system can take advantage of this

The disk array can be generated before or after the system is installed, which is considered a (large) hard drive with fault tolerance and redundancy. The disk array can not only join a ready-made system, it can support capacity expansion, the method is very simple, only need to join a new hard drive and execute some simple instructions, the system can take advantage of this new capacity in real time. · types and applications of RAIDThe IDE and SCSI

The disk array can be generated before or after the system is installed, which is considered a (large) hard drive with fault tolerance and redundancy. The disk array can not only join a ready-made system, it can support capacity expansion, the method is very simple, only need to join a new hard drive and execute some simple instructions, the system can take advantage of this new capacity in real time. · types and Applications of RAIDThe IDE and SCSI

troublesome. In addition to high-end professional scanners, it is used less and less. 　　 Iii. main technical parameters of the scanner 　　 Resolution: The scanner resolution is the optical resolution. It refers to the number of points divided into 1 inch. For example, 1 inch DPI means that it scans 300 optical points on. The scanner also has a highest resolution, which mainly refers to the software interpolation in the optical resolution, that is, obtained through software computation. 　　 Col

RAIDIDEAndSCSIIs two different interfaces of a computer. The former is generally used on a PC, and the latter is generally used on a PC.Server. Based on these two interfaces, raid is divided into two types:Type: Raid applications based on the IDE interface are called ide raid, while raid applications based on the SCSI interface are called SCSI raid.Based on different architectures, raid can be divided:● So

implemented, that is, "software arrays" and "hardware arrays." A software array is the Disk management function provided by the network operating system itself to configure multiple hard disks on a connected common SCSI card into a logical disk to form an array. such as Microsoft Windows nt/2000 server/server 2003 and Netvoll of NetWare two operating systems can provide software array capabilities, where Windows nt/2000 server/server 2003 can provid

ASIC can offload all work (TCP and SCSI commands) from within the system CPU. ISCSI HBAs can be purchased from many vendors, including Adaptec, Alacritech, Intel, and QLogic.The iSCSI target is the "server" component of the iSCSI network. It is typically a storage device that contains the information you need and responds to requests from (one or more) initiators. For this article, node Rac1 will be the IS

The query results show that there are three hard disks, one is Seagate: ST3300657SS and the other is Hitachi: HUS156045VLS600. Use goog The RAID information of the server can be viewed when the OS is started. you just want to use the command to view the RAID information. the content of the RAID information is as follows: Software raid: can only be viewed in Linux Cat/proc/mdstat Hardware raid: The best solution is to use the installed raid vendor's management tools to check whether there is a b

the installed RAID vendors, with CmdLine and graphical interfaces. such as the Adaptec company's hardware card can be viewed by the following command:#/usr/dpt/raidutil-l All can see very detailed information.Of course, more often than not install the appropriate management tools, only rely on the Linux itself, generally there are two ways:# DMESG |grep-i raid# CAT/PROC/SCSI/SCSIThe information displayed i

see it is through the management tools of an installed RAID manufacturer, with CmdLine and a graphical interface. For example, the Adaptec company's hardware card can be viewed through the following commands: 　#/usr/dpt/raidutil-l All 　You can see very detailed information. 　Of course more cases are not installed with the appropriate management tools, only to rely on Linux itself generally I know two ways: 　# DMESG |grep-i raid 　# CAT/PROC/

Sometimes you want to know that there are a few disks on the server, if you do not do raid, you can simply use the fdisk-l can be seen.But I did raid, so I couldn't see it. So how do I check the raid on the server?Software RAID: can only be viewed by the Linux system itself 　 Cat/proc/mdstat 　 You can see information such as RAID level, status, and so on. 　 Hardware RAID: The best way to do this is through the management tools of the installed RAID vendors, with CmdLine and graphical interfaces.

How to view RAID disk array information under Linux The following is the information that is found when you build server raid, take notes, don't be interested in friends please disregard. A way to view soft and hard raid information under Linux. Software RAID: can only be viewed through the Linux system itself Cat/proc/mdstat You can see information such as RAID levels, status, and so on. Hardware RAID: The best way to see it is through the management tools of an installed RAID manufacture

application service system is stored in the common storage system. 3. Mutual backup mode of clusters: Working principle: multiple hosts work together, each running one or several services, each defining one or more backup hosts for the service. When a host fails, services running on them can be taken over by other hosts. Technical Specifications 1. system requirements: Operating System: Soft Linux Server version Script environment: perl5.00503 or above; Korn Shell TCP/IP network Minimum Memory:

standard network interface cards (NICs), in most cases, Gigabit Ethernet cards. The hardware initiator is an ISCSI HBA (or TCP Offload engine (TOE) card), which is essentially a dedicated Ethernet card on which the SCSI ASIC can offload all work (TCP and SCSI commands) from within the system CPU. ISCSI HBAs can be purchased from many vendors, including Adaptec,