请问hpux11.23关于磁盘设备名称的问题
本帖最后由 freebug 于 2016-01-16 10:50 编辑各位大大好,
今天想分析一台rx6600上磁盘使用情况,执行命令输出如下,觉得很奇怪,为什么同样都是RAID1 LD,为什么vg01的pv名是/dev/dsk/c3t2d0,而vg00的pv名是/dev/dsk/c3t3d0s2?这个s1/s2/s3代表什么意思呀?
app#[/]ioscan -fnC disk(去掉光驱)
Class IH/W Path Driver S/W State H/W Type Description
====================================================================================
disk 10/4/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP DG146A4960/位置是bay5
/dev/dsk/c3t0d0 /dev/rdsk/c3t0d0
disk 20/4/1/0.0.0.1.0 sdisk CLAIMED DEVICE HP DG146A4960/位置是bay6
/dev/dsk/c3t1d0 /dev/rdsk/c3t1d0
disk 30/4/1/0.0.0.2.0 sdisk CLAIMED DEVICE HP IR Volume/主备位置分别是bay3和bay4
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
disk 40/4/1/0.0.0.3.0 sdisk CLAIMED DEVICE HP IR Volume/主备位置分别是bay8和bay7
/dev/dsk/c3t3d0 /dev/dsk/c3t3d0s2 /dev/rdsk/c3t3d0 /dev/rdsk/c3t3d0s2
/dev/dsk/c3t3d0s1 /dev/dsk/c3t3d0s3 /dev/rdsk/c3t3d0s1/dev/rdsk/c3t3d0s3
app#[/]vgdisplay -v vg00/PE Size:32MB
--- Physical volumes ---
PV Name /dev/dsk/c3t3d0s2
PV Status available
Total PE 4343
Free PE 519
Autoswitch On
Proactive Polling On
app#[/]vgdisplay -v vg01/PE Size:64MB
--- Physical volumes ---
PV Name /dev/dsk/c3t0d0
PV Status available
Total PE 2187
Free PE 907
Autoswitch On
Proactive Polling On
PV Name /dev/dsk/c3t1d0
PV Status available
Total PE 2187
Free PE 2187
Autoswitch On
Proactive Polling On
PV Name /dev/dsk/c3t2d0
PV Status available
Total PE 2175
Free PE 2175
Autoswitch On
Proactive Polling On /dev/dsk/c3t3d0对应的是整个硬盘,/dev/dsk/c3t3d0s1 对应的是硬盘的EFI分区, /dev/dsk/c3t3d0s2 对应的是OS分区, /dev/dsk/c3t3d0s3 对应的是预留放的工具分区 多谢楼上大大,那我如果删掉重建直接使用/dev/dsk/c3t3d0设备的话,数据肯定会丢掉吧? freebug 发表于 2016-01-22 12:14 static/image/common/back.gif
多谢楼上大大,那我如果删掉重建直接使用/dev/dsk/c3t3d0设备的话,数据肯定会丢掉吧?
你如果只是删设备文件的话,并不会导致数据丢失,重新建好对应的设备文件就行。如果你对pv进行dd写零才会数据丢失。另外IA64平台的话,系统盘肯定是会有s1,s2,s3这些设备文件名的,对应硬盘不同的区域(相当于不同的分区),为什么要删掉? 回复 2# xujinjunWY
学习了
页:
[1]