--fallocate Create a file without writing data to disk --fibmap Show device extents (and fragmentation) for a file --fwdownload Download firmware file to drive (EXTREMELY DANGEROUS) --fwdownload-mode3 Download firmware using min-size segments (EXTREMELY DANGEROUS) --fwdownload-mode3-max Download...
hdparm、dd、fio、都是很好的硬盘测试软件;通常使用其对硬盘信息做基本了解; 关闭硬盘写Cache用例: hdparm -W /dev/sdh # 查看写缓存状态; hdparm -W 0 /dev/sdh # 关闭Cache,保证数据强一致性;放置断电时数据未落盘; hdparm -W 1 /dev/sdh # 打开 1. 2. 3. 测试磁盘和磁盘缓存读取速度: 查看磁盘信...
(VERY DANGEROUS) --fallocate Create a file without writing data to disk --fibmap Show device extents (and fragmentation) for a file --fwdownload Download firmware file to drive (EXTREMELY DANGEROUS) --fwdownload-mode3 Download firmware using min-size segments (EXTREMELY DANGEROUS) --fwdownload-...
FIBMAP is also very slow, and does not deal well with preallocated uncommitted extents in ext4/xfs filesystems, unless a sync() is done before using this option. --fwdownload When used, this should be the only option given. It requires a file path immediately after the option, indicating...
有一条, Write-Read-Verify feature set 也就是说这个硬盘支持这个特性, 只是没有开启. 但是hdparm系统带的版本不能修改这个. 需要用到更新的hdparm版本. 下载地址 :http://sourceforge.net/projects/hdparm/ 编译时会有点问题, 我这用到的是CentOS 5.7 x64的版本. ...
fibmap.c Add Upstream Jun 18, 2013 fwdownload.c Add Upstream Jun 18, 2013 geom.c Add Upstream Jun 18, 2013 hdparm-sysconfig Add Upstream Jun 18, 2013 hdparm.8 Add Upstream Jun 18, 2013 hdparm.c Add Upstream Jun 18, 2013 hdparm.h ...
hdparm-W0/dev/sdh # 关闭Cache,保证数据强一致性;放置断电时数据未落盘; hdparm-W1/dev/sdh # 打开 测试磁盘和磁盘缓存读取速度: 查看磁盘信息: fdisk-l /dev/sdh hdparm/dev/sdh 评估磁盘读取速度: hdparm -t /dev/sdh 评估磁盘缓存读取速度:
Linux下的hdparm(英文全称:hard disk parameters)命令,主要用来查看硬盘的相关信息或对硬盘进行测速、优化、修改硬盘相关参数设定。它提供了一个命令行的接口用于读取和设置IDE或SCSI硬盘参数。 若没有安装hdparm ,可以通过sudo yum install hdparm来安装。
Linux下的hdparm(英文全称:hard disk parameters)命令,主要用来查看硬盘的相关信息或对硬盘进行测速、优化、修改硬盘相关参数设定。它提供了一个命令行的接口用于读取和设置IDE或SCSI硬盘参数。 若没有安装hdparm ,可以通过sudo yum install hdparm来安装。
--fibmap Show device extents (and fragmentation) for a file --fwdownload Download firmware file to drive (EXTREMELY DANGEROUS)--fwdownload-mode3 Download firmware using min-size segments (EXTREMELY DANGEROUS)--fwdownload-mode3-max Download firmware using max-size segments (EXTREMELY DANGE...