组Raid1后查看每块硬盘的使用时间
Online.net昨晚再次放出特价机,16欧便可以拿到一台16G内存2*2T的服务器,相当划算。当我看到消息时已是早上八点与16欧失之交臂。但并没有遗憾,毕竟之前20欧的特价机对我来说性价比也很高,更何况我也没有经济能力去剁手太多的服务器。去Hostloc看了看16欧的相关讨论,意外的收获了关于查看硬盘使用时间的干货。
我的20欧服务器拿到手后便在后台组了RAID1,安装完系统后发现用传统的方法无法获得硬盘的使用时间,如下显示:
root@localhost:~# smartctl -A /dev/sda smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.16.0-4-amd64] (local build) Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org === START OF READ SMART DATA SECTION ===
当时也在网上查了很多资料,得出的结论是硬Raid卡组的Raid1需要厂方提供的专门工具才行,自己也不想仅仅为了查看使用时间而重装系统,或者将Raid1暂时改为Raid0。问题被搁置到一边,这不影响服务器的使用,疙瘩却一直存在心里。
其实这个干货很简单,同样还是使用了smartmontools,就两行命令,增加了几个参数:
# Disk A root@localhost:~# smartctl -a -d cciss,0 /dev/sda # Disk B root@localhost:~# smartctl -a -d cciss,1 /dev/sda
打印出来的结果如下,同时也是我的20欧服务器的硬盘使用情况:
- Disk A
smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.16.0-4-amd64] (local build) Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org /dev/sda [cciss_disk_00] [SAT]: Device open changed type from 'sat,auto+cciss' to 'sat' === START OF INFORMATION SECTION === Device Model: MB2000EBUCF Serial Number: YFJNJ9JA LU WWN Device Id: 5 000cca 223e583a5 Firmware Version: MK7OHPG3 User Capacity: 2,000,398,934,016 bytes [2.00 TB] Sector Size: 512 bytes logical/physical Rotation Rate: 7200 rpm Form Factor: 3.5 inches Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ATA8-ACS T13/1699-D revision 6 SATA Version is: SATA 2.6, 3.0 Gb/s (current: 3.0 Gb/s) Local Time is: Fri Feb 26 13:15:13 2016 CST SMART support is: Available - device has SMART capability. SMART support is: Enabled 9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 13574
- Disk B
smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.16.0-4-amd64] (local build) Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org /dev/sda [cciss_disk_01] [SAT]: Device open changed type from 'sat,auto+cciss' to 'sat' === START OF INFORMATION SECTION === Device Model: MB2000EBUCF Serial Number: YFJNJ8WA LU WWN Device Id: 5 000cca 223e58391 Firmware Version: MK7OHPG3 User Capacity: 2,000,398,934,016 bytes [2.00 TB] Sector Size: 512 bytes logical/physical Rotation Rate: 7200 rpm Form Factor: 3.5 inches Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ATA8-ACS T13/1699-D revision 6 SATA Version is: SATA 2.6, 3.0 Gb/s (current: 3.0 Gb/s) Local Time is: Fri Feb 26 13:16:14 2016 CST SMART support is: Available - device has SMART capability. SMART support is: Enabled 9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 13574
由此可以看出,我的硬盘使用时间为13574小时,不到两年的时间,是在可以接收的范围之内。
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