SCSI 硬盘出现Start United request failed，怎么办

blueskys

start unit request failed? 怎么解决？用的M15笼子

blueskys

1.硬盘在SCSI管理器里认不到容量.但能认到型号.状态显示为0FF-LINE.
* I9 m8 C" n4 X2 o2.系统启动的时候显示:"SCSI Start Unit Request Failed"

blueskys

There   are   various   steps   that   may   resolve   the   problem:   
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$ M, N' f! P+ b; S5 [* k  Unload   and   try   a   different   tape   (Make   sure   a   tape   is   loaded).   Make   sure   drive   loads   and   unloads   properly.     
- f$ x* {! Y4 F, a% @  Make   sure   the   unit   shows   up   at   boot   in   the   BIOS,   under   SCSI   Adapters   and   Tape   Devices   in   the   control   panel   if   running   NT.   Make   sure   drivers   are   loaded.   Remove   everything   from   the   SCSI   chain   except   for   the   tape   drive.   You   can   switch   the   ID   of   the   host   adapter   and   tape   drive   back   and   forth   to   see   if   priority   makes   a   difference.     
  Try   using   Native   backup   software   app   if   your   using   a   different   one   or   have   this   option.     
0 @  v1 f+ R8 J9 N" n  This   error   can   be   a   simple   hardware   error   --   try   a   different   SCSI   cable   and   terminator.   Try   using   an   active   terminator   --   terminate   SCSI   chain   at   both   ends.      
  Try   to   unload   tape   and   power   drive   off   for   a   few   minutes   and   then   power   on   again   to   clear   volatile   memory.

blueskys

没看懂
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[s:18]

blueskys

请高手指点
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八喜

硬盘掉线了；
( ~" {/ B3 ?9 [, v  E- k+ a实际是硬盘没有了容量，可以搞定；

blueskys

'Start Unit Request Failed' Hard Drive Error and Recovery

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/ E  H1 y! _4 J1 c8 G# sSCSI (Small Computer System Interface) hard drives possess better performance due to their speed in terms of throughput and rpm (rotations per minute) rating. These hard drives are often used with servers, RAID and JBOD arrays and workstations that require high performance. But sometimes hard drive failure may affect our business critical operations due to drive health issues. Such crashes occur due to hard drive fatigue, component failure and external factors that require Data Recovery service as the solution.
6 g4 h4 }$ m5 @  H$ r& NError Explanation

SCSI hard drives fail to start up when experience physical failure. When the computer system is powered on, SCSI BIOS gets the drive control from system BIOS. This SCSI BIOS sends 'Start Unit Request' to the SCSI devices including SCSI hard drive so that they may start and spin up. Upon successful completion of task, SCSI BIOS gets 'Start Unit Request Completed' plus some additional information from drives in return. But if this task completion command is not received in a specific interval of time by SCSI BIOS, it returns an error message that might occur due to hard drive failure:
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"Start Unit Request Failed"
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; X1 t9 F2 x+ T, F/ e- @/ cReasons

" |# z0 e9 w8 k, ~5 ?) ~- High Condensation and Electronic Failure: In high throughput environment, the major concern with such hard drives is heat. Though SCSI hard drives offer good resistance to heat but when the system is powered off and condensation occurs due to extreme heat, hard drive electronics suffer the most. The electronic components may break down due to high stress conditions making a hard drive useless.

- Mechanical Failure: Hard drives can remain functional and tolerate vibrations till the read/write head works fine. The head crash is characterized by strange noises. Apart from it, other internal failures also create a need for Data Recovery service preferably through Clean Rooms.

) g$ K9 y) `' V% ]9 QThe above error message occurs due to hard drive failure and drive recovery service can take care of your precious data by extracting all your data files from the hard disk. But there are other solutions as well, which are:
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- User can make a jumper setting so as to ignore SCSI BIOS process. The drive can be set to auto-start in which system starts as it gets power. - User can disable the Unit Request confirmation from drive.
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* p5 A& d( p6 s! I/ N" O$ i3 y; RAfter we suitably apply these procedures, we can get enough time for data backup. However if these are not possible or fruitful, the most appropriate solution is to go for Hard Disk Recovery which is meant to extract lost data under expert supervision and through certified Clean Rooms.

Stellar Information Systems Limited is the number one company in providing high quality Data Recovery service since 1993. The company provides exhaustive Hard Drive Recovery through Class-100 Clean Room facility, advanced set of data extraction procedures and expert professionals. Stellar's Hard Disk Recovery is provided for interfaces including SCSI, SATA, EIDE/ATA-2 and IDE.
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- G# q- }) N2 f( g/ r  L" qArticle By K Madhav

blueskys

八喜帮忙指点一下吧，谢谢啊

八喜

你不用发这些文章，你刚开始的描述其实已经知道发生了什么，硬盘出现了故障，不是不想指点，硬件故障这个不是远程能够操作的；

blueskys

只通过软件能够解决吗？