WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT. Use
2014-10-23 16:12
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由于用户希望使用SSD盘代替普通硬盘测试数据库性能,在迁移挂盘过程中中发现linux fdisk命令 不支持GPT 分区形式,整个过程记录如下:
存储盘挂在上之后,使用fdisk -l 出现warning
根据提示建议使用GNU Parted分区方式:
正常停库后,后续分区、挂在、迁移记录之,当做记录查阅:
存储盘挂在上之后,使用fdisk -l 出现warning
WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT.Use GNU Parted. Disk /dev/sdd: 107.4 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders, total 209715200 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdd1 1 209715199 104857599+ ee GPT pvcreate 失败 |
shxxora05:/dev # parted /dev/sdd GNU Parted 2.3 Using /dev/sdd Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) mklabel GPT Warning: The existing disk label on /dev/sdd will be destroyed and all data on this disk will be lost. Do you want to continue? Yes/No? yes (parted) p Model: DGC VRAID (scsi) Disk /dev/sdd: 107GB Sector size (logical/physical): 512B/512B Partition Table: GPT Number Start End Size File system Name Flags (parted) mkpart Partition name? []? ora_ssd File system type? [ext2]? ext3 Start? 0 End? 100G Warning: The resulting partition is not properly aligned for best performance. Ignore/Cancel? ignore (parted) p Model: DGC VRAID (scsi) Disk /dev/sdd: 107GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 100GB 100GB ora_ssd (parted) quit |
#检查迁移前分区信息,并create vg/pv/lv/ oracle@shxxxora05:~> df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 40G 11G 27G 29% / udev 16G 120K 16G 1% /dev tmpfs 28G 827M 28G 3% /dev/shm shmfs 28G 827M 28G 3% /dev/shm /dev/mapper/oraclevg-oraclelv 89G 58G 27G 69% /ora #以下均为root操作 #在ssd上创建pv pvcreate /dev/sdd1 #在ssd上创建vg vgcreate oracle_ssdvg /dev/sdd1 #在ssd上创建lv lvcreate -L 100G -n oracle_ssdlv oracle_ssdvg #格式化ssd盘为ext3格式 mkfs.ext3 /dev/oracle_ssdvg/oracle_ssdlv #准备迁移数据库程序文件及数据文件 cd /ora tar -cvf /ora/u01.tar u01 #root operatoion mount /dev/oracle_ssdvg/oracle_ssdlv /ora_ssd cp /ora/u01.tar /ora_ssd/ cd /ora/ cp -p -R /ora/u02/ /ora_ssd/ cp -p -R /ora/u05/ /ora_ssd/ 【注】-p 能保留权限 #卸载原有普通硬盘分区/ora umount /ora #挂在ssd分区到/ora 目录 mount /dev/oracle_ssdvg/oracle_ssdlv /ora #Oracle用户操作 #最后启动数据库和监听及OEM等其他程序 |
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