EMC与suse

维护经验模板 1、​ SUSE LVM配置方法及经验 1、SUSE的LVM命令介绍 说明：SUSE的LVM几乎与HP-UX相同，下面蓝色字体为命令执行结果，红色字体是需要注意的地方。 （1）VG相关命令 vgcreate:创建VG vgdisplay:查看VG信息 vgremove：删除VG vgexport：导出VG vgimport：导入VG vgextend：增加PV到VG vgreduce：从VG删除PV （2）LV相关命令 lvcreate：创建LV lvextend：扩展LV lvreduce：缩小LV lvremove：删除LV lvdisplay：查看LV （3）PV相关命令 pvcreate：创建PV，格式化磁盘，将物理磁盘加入LVM管理 pvdisplay：查看PV状态 pvremove：删除PV 2、实例说明 使用EMC磁阵，磁阵大小：30块146G的磁盘，总共划为5个lun，在安装了powerpath软件后显示为： Disk /dev/emcpowerb: 503.7 GB, 503776280576 bytes 255 heads, 63 sectors/track, 61247 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/emcpowerb doesn't contain a valid partition table Disk /dev/emcpowere: 534.0 GB, 534094479360 bytes 255 heads, 63 sectors/track, 64933 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/emcpowere doesn't contain a valid partition table Disk /dev/emcpowera: 644.2 GB, 644245094400 bytes 255 heads, 63 sectors/track, 78325 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/emcpowera doesn't contain a valid partition table Disk /dev/emcpowerc: 665.7 GB, 665719930880 bytes 255 heads, 63 sectors/track, 80935 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/emcpowerc doesn't contain a valid partition table Disk /dev/emcpowerd: 665.7 GB, 665719930880 bytes 255 heads, 63 sectors/track, 80935 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/emcpowerd doesn't contain a valid partition table 3、创建PV pvcreate -f /dev/emcpowera pvcreate -f /dev/emcpowerb pvcreate -f /dev/emcpowerc pvcreate -f /dev/emcpowerd pvcreate -f /dev/emcpowere 4、创建VG vgcreate -s 256M qasvg /dev/emcpowera /dev/emcpowerb /dev/emcpowerc /dev/emcpowerd /dev/emcpowere 说明：SUSE默认的VG的PE大小为4M，对于3T的磁阵来说，这个PE大小太小了，必须修改为至少256M。 查看VG状态 vgdisplay -v Finding all volume groups Finding volume group "qasvg" --- Volume group --- VG Name qasvg System ID Format lvm2 Metadata Areas 5 Metadata Sequence No 2 VG Access read/write VG Status resizable MAX LV 0 Cur LV 0 Open LV 0 Max PV 0 Cur PV 5 Act PV 5 VG Size 2.74 TB PE Size 256.00 MB Total PE 11222 Alloc PE / Size 0 / 0 Free PE / Size 11222 / 2.74 TB VG UUID uiMSc8-WG7G-GFKG-BGWO-4FWn-7XVP-4CM9g3 --- Physical volumes --- PV Name /dev/emcpowera PV UUID WI0u9p-DxX1-DlDz-Y7qF-CU3g-QHN8-1LiYzS PV Status allocatable Total PE / Free PE 2399 / 2399 PV Name /dev/emcpowerb PV UUID p88v0l-V4Ls-aKVp-8dfI-n07W-RpLd-P6zdC1 PV Status allocatable Total PE / Free PE 1876 / 1876 PV Name /dev/emcpowerc PV UUID U5lZkc-pjdm-7v9f-VhRG-cPV1-0c3C-OWbYLD PV Status allocatable Total PE / Free PE 2479 / 2479 PV Name /dev/emcpowerd PV UUID 0hmUS1-ryVN-kufL-8vBn-SAsJ-eUAO-NRQZvp PV Status allocatable Total PE / Free PE 2479 / 2479 PV Name /dev/emcpowere PV UUID U6MVyt-CVRR-KXHK-O1LG-ZPrM-38QV-Na34zY PV Status allocatable Total PE / Free PE 1989 / 1989 5、创建LV lvcreate -L +1000G -n qasdblv qasvg ---创建一个1T的LV lvcreate -L +1000G -n qasdb2lv qasvg lvcreate -L +200G -n qaslv qasvg 查看LV： lvdisplay -v Finding all logical volumes --- Logical volume --- LV Name /dev/qasvg/qasdblv VG Name qasvg LV UUID gSgQC6-ByIy-uf2h-H8jC-9NsQ-WIAz-WeAtPq LV Write Access read/write LV Status available # open 0 LV Size 1.00 TB Current LE 8000 Segments 4 Allocation inherit Read ahead sectors 0 Block device 253:0 --- Logical volume --- LV Name /dev/qasvg/qaslv VG Name qasvg LV UUID w7gKns-XgMl-bAty-8VD2-LeNQ-VGyc-n9HFlQ LV Write Access read/write LV Status available # open 0 LV Size 200.00 GB Current LE 800 Segments 1 Allocation inherit Read ahead sectors 0 Block device 253:1 6、创建FS mkfs -t ext3 /dev/qasvg/qasdblv mkfs -t ext3 /dev/qasvg/qasdb2lv mkfs -t ext3 /dev/qasvg/qasdb3lv mkfs -t ext3 /dev/qasvg/qasdb4lv mkfs -t ext3 /dev/qasvg/qaslv 7、创建mount目录 mkdir /scdata/dbdata mkdir /scdata/dbdata2 mkdir /scdata/qas 8、mount文件系统 mount /dev/qasvg/qasdblv /scdata/dbdata mount /dev/qasvg/qasdb2lv /scdata/dbdata2 mount /dev/qasvg/qaslv /scdata/qas 9、将fs加入文件，以便系统重建能自动mount vi /etc/fstab /dev/cciss/c0d0p5 / ext3 acl,user_xattr 1 1 /dev/cciss/c0d0p1 /boot ext3 acl,user_xattr 1 2 /dev/cciss/c0d0p7 /dbbak ext3 acl,user_xattr 1 2 /dev/cciss/c0d0p6 /home ext3 acl,user_xattr 1 2 /dev/cciss/c0d0p2 swap swap pri=42 0 0 devpts /dev/pts devpts mode=0620,gid=5 0 0 proc /proc proc defaults 0 0 usbfs /proc/bus/usb usbfs noauto 0 0 sysfs /sys sysfs noauto 0 0 /dev/dvd /media/dvd subfs fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0 /dev/qasvg/qasdblv /scdata/dbdata ext3 acl,user_xattr 1 2 /dev/qasvg/qasdb2lv /scdata/dbdata2 ext3 acl,user_xattr 1 2 /dev/qasvg/qaslv /scdata/qas ext3 acl,user_xattr 1 2