请问任何理解下面的信息？？

qdwmail

（单CPU志强超线程 +1g内存ecc+SCSI硬盘） 每次启动都有以下提示，是否对系统性能有所影响呢。？？？是否大家安装REDHAT都遇到这个信息
不太理解为什么会限制在4095M
Aug 22 23:08:41 server9 kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8
Aug 22 23:08:41 server9 kernel:         <Adaptec aic7899 Ultra160 SCSI adapter>;
Aug 22 23:08:41 server9 kernel:         aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
Aug 22 23:08:41 server9 kernel:
Aug 22 23:08:41 server9 kernel: scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8
Aug 22 23:08:41 server9 kernel:         <Adaptec aic7899 Ultra160 SCSI adapter>;
Aug 22 23:08:41 server9 kernel:         aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
Aug 22 23:08:41 server9 kernel:
Aug 22 23:08:41 server9 kernel: blk: queue f7fd0c18, I/O limit 4095Mb (mask 0xffffffff)
Aug 22 23:08:41 server9 kernel:   Vendor: FUJITSU   Model: MAT3147NC         Rev: 5704
Aug 22 23:08:41 server9 kernel:   Type:   Direct-Access                      ANSI SCSI revision: 03
Aug 22 23:08:41 server9 kernel: blk: queue f7fd0a18, I/O limit 4095Mb (mask 0xffffffff)
Aug 22 23:08:41 server9 kernel:   Vendor: PE/PV     Model: 1x5 SCSI BP       Rev: 1.1
Aug 22 23:08:41 server9 kernel:   Type:   Processor                          ANSI SCSI revision: 02
Aug 22 23:08:41 server9 kernel: blk: queue f7fd0618, I/O limit 4095Mb (mask 0xffffffff)
Aug 22 23:08:42 server9 kernel: scsi0:A:0:0: Tagged Queuing enabled.  Depth 253
Aug 22 23:08:42 server9 kernel: Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
Aug 22 23:08:42 server9 kernel: (scsi0:A:0): 160.000MB/s transfers (80.000MHz DT, offset 127, 16bit)
Aug 22 23:08:42 server9 kernel: SCSI device sda: 286749480 512-byte hdwr sectors

bingosek

这个只是检测出硬件,并显示硬件信息

qdwmail

谢了