近期在增加ASM磁盘过程中遇到如下错误：
SQL> alter diskgroup datadg add disk ‘/dev/rac/DBdg01’ rebalance power 0; alter diskgroup datadg add disk ‘/dev/rac/DBdg01’ rebalance power 0 * ERROR at line 1: ORA-15032: not all alterations performed ORA-15031: disk specification ‘/dev/rac/DBdg01’ matches no disks ORA-15025: could not open disk ‘/dev/rac/DBdg01’ ORA-15056: additional error message SVR4 Error: 13: Permission denied Additional information: 42 Additional information: –1897261352
经过两天排查，，最终的处理方法归结为在OS环境通过Format命令格式化分区时如下的0号分区没有留空间，6号区从0号Cylinders 开始导致的。
Part Tag Flag Cylinders Size Blocks 0 root wm 0 – 4 117.66MB (5/0/0) 240975
具体处理过程如下：
bash-3.00# format Searching for disks…done
c3t6000B5D0006A0000006A10C100080000d0: configured with capacity of 1023.95GB c3t6000B5D0006A0000006A10C100090000d0: configured with capacity of 279.87GB
AVAILABLE DISK SELECTIONS: ….. 6. c3t6000B5D0006A0000006A10C100040000d0 <FUJITSU-ETERNUS_DX400-0000 cyl 61273 alt 2 hd 128 sec 256> /scsi_vhci/ssd@g6000b5d0006a0000006a10c100040000 7. c3t6000B5D0006A0000006A10C100050000d0 <FUJITSU-ETERNUS_DX400-0000 cyl 44556 alt 2 hd 255 sec 189> /scsi_vhci/ssd@g6000b5d0006a0000006a10c100050000
…..
Specify disk (enter its number): 7 selecting c3t6000B5D0006A0000006A10C100050000d0 [disk formatted]
FORMAT MENU: disk – select a disk type – select (define) a disk type partition – select (define) a partition table current – describe the current disk format – format and analyze the disk repair – repair a defective sector label – write label to the disk analyze – surface analysis defect – defect list management backup – search for backup labels verify – read and display labels save – save new disk/partition definitions inquiry – show vendor, product and revision volname – set 8-character volume name !<cmd> – execute <cmd>, then return quit format> p
PARTITION MENU: 0 – change `0′ partition 1 – change `1′ partition 2 – change `2′ partition 3 – change `3′ partition 4 – change `4′ partition 5 – change `5′ partition 6 – change `6′ partition 7 – change `7′ partition select – select a predefined table modify – modify a predefined partition table name – name the current table print – display the current table label – write partition map and label to the disk !<cmd> – execute <cmd>, then return quit partition> m Select partitioning base: 0. Current partition table (original) 1. All Free Hog Choose base (enter number) [0]? 0
Part Tag Flag Cylinders Size Blocks 0 root wm 0 0 (0/0/0) 0 1 swap wu 0 0 (0/0/0) 0 2 backup wu 0 – 44555 1023.95GB (44556/0/0) 2147376420 3 unassigned wm 0 0 (0/0/0) 0 4 unassigned wm 0 0 (0/0/0) 0 5 unassigned wm 0 0 (0/0/0) 0 6 usr wm 0 – 44555 1023.95GB (44556/0/0) 2147376420 7 unassigned wm 0 0 (0/0/0) 0
生命不是一场赛跑，而是一次旅行。比赛在乎终点，而旅行在乎沿途风景。
