WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT. Use

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

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

根据提示建议使用GNU Parted分区方式：

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

正常停库后，后续分区、挂在、迁移记录之，当做记录查阅：

#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