# ethtool -i eth0
driver: e1000e
version: 0.3.3.3-k6
firmware-version: 5.7-6
bus-info: 0000:0c:00.0
每日存档 十二月 8th, 2009
查看Linux网卡驱动版本
linux下挂载其他硬盘上lvm分区方法
在Fedora 10里试图挂载另外一块硬盘,其中的一个分区是LVM2格式的,不能直接mount,方法记录如下,以备不时之需。
1.首先使用vgscan 扫描 lvm 结果如下
[root@localhost ~]# vgscan
Reading all physical volumes. This may take a while…
WARNING: Duplicate VG name VolGroup00: Existing bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh (created here) takes precedence over 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM
WARNING: Duplicate VG name VolGroup00: Existing bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh (created here) takes precedence over 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM
WARNING: Duplicate VG name VolGroup00: Existing 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM (created here) takes precedence over bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh
Found volume group “VolGroup00″ using metadata type lvm2
WARNING: Duplicate VG name VolGroup00: Existing bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh (created here) takes precedence over 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM
Found volume group “VolGroup00″ using metadata type lvm2
2.通过 vgdisplay VolGroup00 查看 lvm 的 VG UUID
[root@localhost ~]# vgdisplay VolGroup00
WARNING: Duplicate VG name VolGroup00: Existing bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh (created here) takes precedence over 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM
— Volume group —
VG Name VolGroup00
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 129.31 GB
PE Size 32.00 MB
Total PE 4138
Alloc PE / Size 4137 / 129.28 GB
Free PE / Size 1 / 32.00 MB
VG UUID bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh
可以看出当前操作系统使用的VolGroup00的 VG UUID 是 bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh
说明 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM 这个VG UUID 是要另一块硬盘的lvm 分区
3.将第二块硬盘的VG的名字重命名
[root@localhost ~]# vgrename 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM /dev/vg01
WARNING: Duplicate VG name VolGroup00: Existing bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh (created here) takes precedence over 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM
WARNING: Duplicate VG name VolGroup00: Existing bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh (created here) takes precedence over 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM
WARNING: Duplicate VG name VolGroup00: Existing 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM (created here) takes precedence over bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh
Volume group “VolGroup00″ successfully renamed to “vg01″
这个时候通过 vgdisplay 就可以看到 VG的信息了
[root@localhost ~]# vgdisplay
— Volume group —
VG Name vg01
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 34.50 GB
PE Size 32.00 MB
Total PE 1104
Alloc PE / Size 1103 / 34.47 GB
Free PE / Size 1 / 32.00 MB
VG UUID 1WnXRG-M0t1-z1A6-rppv-lltN-oDQB-IDonTM
— Volume group —
VG Name VolGroup00
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 129.31 GB
PE Size 32.00 MB
Total PE 4138
Alloc PE / Size 4137 / 129.28 GB
Free PE / Size 1 / 32.00 MB
VG UUID bgKw70-NEBI-QY6s-RvqU-3a59-N8E1-ruOWwh
4.激活VG
VG重命名后,默认是非ACTIVE状态,我们要通过以下方式激活VG
[root@localhost ~]# lvscan
inactive ‘/dev/vg01/LogVol00′ [31.50 GB] inherit
inactive ‘/dev/vg01/LogVol01′ [2.97 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol00′ [125.41 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol01′ [3.88 GB] inherit
激活 VG
[root@localhost ~]# vgchange -ay /dev/vg01
2 logical volume(s) in volume group “vg01″ now active
查看状态
[root@localhost ~]# lvscan
ACTIVE ‘/dev/vg01/LogVol00′ [31.50 GB] inherit
ACTIVE ‘/dev/vg01/LogVol01′ [2.97 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol00′ [125.41 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol01′ [3.88 GB] inherit
[root@localhost ~]# vgscan
Reading all physical volumes. This may take a while…
Found volume group “vg01″ using metadata type lvm2
Found volume group “VolGroup00″ using metadata type lvm2
到此为止,可以挂载系统了!
5.挂载lvm文件系统
[root@localhost mnt]# mount /dev/vg01 /mnt/sdb3
就可以访问了
Got error 28 from storage engine 解决方法
今天碰到数据库出错
Got error 28 from storage engine
查了一下,数据库文件所在的盘应该没事,应该是数据库用的临时目录空间不够
引用
磁盘临时空间不够导致。
解决办法:
清空/tmp目录,或者修改my.cnf中的tmpdir参数,指向具有足够空间目录
上面的说法应该比较清楚,还有一个类似的:
引用
mysql报以下错的解决方法
ERROR 1030 (HY000): Got error 28 from storage engine
出现此问题的原因:临时空间不够,无法执行此SQL语句
解决方法:将tmpdir指向一个硬盘空间很大的目录即可
原创内容如转载请注明:来自 阿权的书房
本帖地址:http://www.aslibra.com/blog/read.php/794.htm
Rm -rf 磁盘空间未释放
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
|注意事项:如欲转载,请保留以下信息。谢谢
|文章出处:http://hi.baidu.com/_wang8
|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
rm -rf 之后,文件未必是立即就被删除了..
还需要等占用此文件的进程将文件释放后,文件才开始执行删除操作。
rm -rf access_log
cat >access_log
rm -rf error_log
cat >error_log
[root@ccsafe local]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/sda1 99G 3.4G 91G 4% /
/dev/sdb1 276G 249G 13G 96% /data
none 2.0G 4.0K 2.0G 1% /dev/shm
/dev/sda3 167G 155G 3.4G 98% /usr/local
[root@ccsafe local]# du -h –max-depth=1 /usr/local/
92K /usr/local/page_creater
136M /usr/local/virus_info_svr
940K /usr/local/lib
140K /usr/local/share
8.0K /usr/local/include
76K /usr/local/sbin
36K /usr/local/virus
8.0K /usr/local/games
8.0K /usr/local/src
44K /usr/local/conf
24K /usr/local/man
276K /usr/local/monitor-base
4.9G /usr/local/mysql
76K /usr/local/etc
8.0K /usr/local/data
24M /usr/local/snmpd
8.0K /usr/local/libexec
1.2M /usr/local/external_lib
16K /usr/local/lost+found
15M /usr/local/bin
72K /usr/local/doc
42M /usr/local/apache2
5.1G /usr/local/
[root@ccsafe local]#
[root@ccsafe local]# /usr/local/apache2/bin/apachectl stop
httpd (no pid file) not running
[root@ccsafe local]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/sda1 99G 3.4G 91G 4% /
/dev/sdb1 276G 249G 13G 96% /data
none 2.0G 4.0K 2.0G 1% /dev/shm
/dev/sda3 167G 130G 29G 82% /usr/local
[root@ccsafe local]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/sda1 99G 3.4G 91G 4% /
/dev/sdb1 276G 249G 13G 96% /data
none 2.0G 4.0K 2.0G 1% /dev/shm
/dev/sda3 167G 88G 71G 56% /usr/local
[root@ccsafe local]# df -h
文件系统 容量 已用 可用 已用% 挂载点
/dev/sda1 99G 3.4G 91G 4% /
/dev/sdb1 276G 249G 13G 96% /data
none 2.0G 4.0K 2.0G 1% /dev/shm
/dev/sda3 167G 5.2G 154G 4% /usr/local
[root@ccsafe local]#
可以这样来检测:
[root@ccsec ~]# lsof |grep deleted
cat 8036 root 1w REG 253,0 5 483189 /root/aaa.txt (deleted)
[root@ccsec ~]#