{"id":4715,"date":"2023-02-16T14:15:45","date_gmt":"2023-02-16T05:15:45","guid":{"rendered":"http:\/\/haisins.synology.me\/wordpress\/?p=4715"},"modified":"2023-02-16T14:15:45","modified_gmt":"2023-02-16T05:15:45","slug":"%ec%86%94%eb%9d%bc%eb%a6%ac%ec%8a%a4-solaris-%ec%97%90%ec%84%9c-oracle-asm-%eb%94%94%ec%8a%a4%ed%81%ac-disk-%ec%9d%b8%ec%8b%9d%ec%9d%b4-%ec%95%88-%eb%90%a0-%ea%b2%bd%ec%9a%b0","status":"publish","type":"post","link":"http:\/\/haisins.synology.me\/wordpress\/?p=4715","title":{"rendered":"\uc194\ub77c\ub9ac\uc2a4 Solaris \uc5d0\uc11c Oracle ASM \ub514\uc2a4\ud06c Disk \uc778\uc2dd\uc774 \uc548 \ub420 \uacbd\uc6b0"},"content":{"rendered":"

\uc194\ub77c\ub9ac\uc2a4 Solaris \uc5d0\uc11c Oracle ASM \ub514\uc2a4\ud06c Disk \uc778\uc2dd\uc774 \uc548 \ub420 \uacbd\uc6b0<\/p>\n

 <\/p>\n

\uc2e4\ub9b0\ub354 \ubc88\ud638 \ub098 \ud560\ub2f9 \uc601\uc5ed\uc744 \uccb4\ud06c\ud574 \ubd10\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

ASM \ub514\uc2a4\ud06c \uc99d\uc124\uc778 \uacbd\uc6b0 prtvtoc \uba85\ub839\uc5b4<\/span>\ub85c \uae30\uc874\uc5d0 \ud560\ub2f9\ub41c asm \ub514\uc2a4\ud06c \ub97c \ud655\uc778\ud574\uc11c \ub3d9\uc77c\ud558\uac8c \ud30c\ud2f0\uc158 + \uc2e4\ub9b0\ub354\uac00 \uad6c\uc131 \ub418\uc5b4\u00a0 \ubc1b\uc740 \uac74\uc9c0 \ud655\uc778 \ud569\ub2c8\ub2e4.<\/span><\/strong><\/p>\n

 <\/p>\n

\uc2e0\uaddc \uc124\uce58\ud558\uc5ec \ucc98\uc74c \ubc1b\uc740 ASM \ub514\uc2a4\ud06c\uac00 \uc778\uc2dd\uc774 \uc548\ub418\ub294 \uacbd\uc6b0\ub77c\uba74\u00a0512 \ubc14\uc774\ud2b8 \uc774\uc0c1 \ud560\ub2f9 \ubc1b\uc740 \uc601\uc5ed \uacfc \uc2e4\ub9b0\ub354 3\ubc88 \uc778\uc9c0 \ud655\uc778 \ud574\uc57c \ud569\ub2c8\ub2e4 .<\/span><\/strong><\/p>\n

 <\/p>\n

——————————————————————————————————————————————————————————————————-<\/p>\n

 <\/p>\n

Partition # 2 is a standard partition and it SHOULD NOT be changed as it reflects the total capacity of the disk.<\/p>\n

All other partitions are available for the configuration.<\/p>\n

All this information for the partitions and other data is contained in a special structure stored within the first 512 bytes of the disk, on the first cylinders.<\/p>\n

This structure is called\u00a0VTOC\u00a0<\/strong>\u00a0(Volume Table of Contents).\u00a0 Actions like re-writting the VTOC will cause loosing the disk.<\/p>\n

The output displayed above is a typical configuration, where slice 0 was formatted using the entire disk.<\/p>\n

When using\u00a0ASM\u00a0<\/strong>and during the disk discovery, the previous configuration is the cause for missing disks or disks not been discovered.<\/p>\n

The reason seems to be that having partitions that start at cylinder 0, the complete partition\u00a0 is interpreted as the\u00a0VTOC\u00a0<\/strong>area which is not\u00a0 used as a regular partition of the disk.<\/p>\n

 <\/p>\n

Grid Infra \u2013 ASM 11.2.0.3 bug on Solaris \u2013 slice 2 CANDIDATE<\/h1>\n
\n
<\/div>\n<\/div>\n
\n
\n

We recently ran into a bug (at least that how I look at it) that is introduced with ASM 11.2.0.3. As of this version,<\/p>\n

ASM shows slice 2 (the complete disk, starting a cylinder 0 thus inlcuding the VTOC) as an\u00a0CANDIDATE<\/strong>\u00a0disk in ASM.<\/p>\n

In previous versions of ASM (Grid Infra) only slices that started from cylinder 3 (or higher) where shown as\u00a0CANDIDATE<\/strong>\u00a0disks in ASM,<\/p>\n

so you couldn\u2019t accidently select slice 2 to be used for a diskgroup.<\/p>\n

In ASM 11.2.0.3 it is possible to add the slice 2 (for example *c0t0d0s2) to an ASM diskgroup while another slice of the same disk,<\/p>\n

starting at cylinder 3, is already part of the same or even another diskgroup. You can understand what a mess this gives!
\n\"\"<\/a>Example partition table of solaris disk, where until 11.2.0.3 you would only see partition (slice) 0,<\/p>\n

starting at cylinder 3 (see MOS note:\u00a0ASM Does Not Discover Disk on Solaris [ID 368840.1]<\/em>).<\/p>\n

Current partition table (original):\r\nTotal disk cylinders available: 13651 + 2 (reserved cylinders)\r\n\r\nPart\u00a0\u00a0\u00a0\u00a0\u00a0 Tag\u00a0\u00a0\u00a0 Flag\u00a0\u00a0\u00a0\u00a0 Cylinders\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Size\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Blocks\r\n\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 root\u00a0\u00a0\u00a0 wm\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3 - 13650\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 49.98GB\u00a0\u00a0\u00a0 (13648\/0\/0) 104816640\r\n\u00a0 1 unassigned\u00a0\u00a0\u00a0 wu\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (0\/0\/0)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\r\n\u00a0 2\u00a0\u00a0\u00a0\u00a0 backup\u00a0\u00a0\u00a0 wu\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 - 13650\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 49.99GB\u00a0\u00a0\u00a0 (13651\/0\/0) 104839680\r\n\u00a0 3 unassigned\u00a0\u00a0\u00a0 wm\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (0\/0\/0)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\r\n\u00a0 4 unassigned\u00a0\u00a0\u00a0 wm\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (0\/0\/0)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\r\n\u00a0 5 unassigned\u00a0\u00a0\u00a0 wm\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (0\/0\/0)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\r\n\u00a0 6 unassigned\u00a0\u00a0\u00a0 wm\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (0\/0\/0)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\r\n\u00a0 7 unassigned\u00a0\u00a0\u00a0 wm\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (0\/0\/0)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0<\/pre>\n
ASM (11.2.0.3) discovers the following disks now. Take a good look at the disk number of the\u00a0MEMBER<\/strong>\u00a0disks and\u00a0CANDIDATE<\/strong>\u00a0disks:<\/p>\n
SQL> select path,header_status from v$asm_disk order by 1,2;\r\n\r\nPATH\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 HEADER_STATUS\r\n-------------------------------------------------- ---------------\r\n\/dev\/rdsk\/c3t60060E8005492800000049280000319Dd0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E8005492800000049280000319Dd0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E8005492800000049280000319Ed0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E8005492800000049280000319Ed0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E8005492800000049280000319Fd0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E8005492800000049280000319Fd0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A0d0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A0d0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A6d0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A6d0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A7d0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A7d0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A8d0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A8d0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A9d0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031A9d0s2\u00a0 CANDIDATE\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031CBd0s0\u00a0 MEMBER\r\n\/dev\/rdsk\/c3t60060E800549280000004928000031CBd0s2\u00a0 CANDIDATE<\/pre>\n
I have created an SR for this problem, but until then you\u2019ll have the following options:<\/p>\n
    \n
  1. Set the\u00a0ASM_DISKSTRING<\/strong>\u00a0parameter to\u00a0\/dev\/rdsk\/*s0<\/strong>\u00a0(or whatever slice you normally use)<\/li>\n
  2. Make sure the user\u00a0grid<\/strong>\u00a0does not have any privileges on the\u00a0\/dev\/rdsk\/*s2<\/strong>\u00a0devices.<\/li>\n<\/ol>\n
    Update 26-02-2013:<\/strong>
    \nOracle Support finally came back with an answer and a patch.<\/p>\n
    The most important thing is that they agree that this is actually a bug and created a bug (bug nr.\u00a014577881<\/strong>) for it.<\/p>\n
    Support tells me that the problem is \u201creally\u201d fixed in Oracle 12.2 (when even 12.1 is not even released yet ;-)) but they have created a backport request for it.<\/p>\n
    I just got back that the backport is available as a one-off patch downloadable as patch 14577881 for 11.2.0.3.<\/p>\n<\/div>\n<\/div>\n
     <\/p>\n
    \n
    \n
    \n
    \n
    \n
    \n
     <\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
    \uc624\ub77c\ud074 MOS\u00a0 \uc5d0 \uc788\ub294\u00a0 \uc194\ub77c\ub9ac\uc2a4 \ud658\uacbd\uc5d0\uc11c\u00a0 ASM \ub514\uc2a4\ud06c\ub85c \uc778\uc2dd \uc2dc\ud0ac \uacbd\uc6b0\u00a0 …<\/p>\n
     <\/p>\n
    \uc2e4\ub9b0\ub354 1 \uacfc 2\ubc88 \uc740 \ud53c\ud574\uc57c \ud569\ub2c8\ub2e4.<\/b><\/p>\n
     <\/p>\n
    Modifying the partitions, starting few cylinders ahead (1 or 2 to avoid wasting space<\/span>), will help\u00a0ASM\u00a0to discover the disk.<\/p>\n
    The following output displays the disk originally presented, but now with partition 0 starting\u00a0 at cylinder 3:<\/b><\/p>\n
     <\/p>\n
    Part Tag Flag Cylinders Size Blocks
    \n0 unassigned wm 3 - 51197 100.00GB (51198\/0\/0) 209707008<\/strong>
    \n1 unassigned wm 0 0 (0\/0\/0) 0
    \n2 backup wu 0 - 51197 100.00GB (51198\/0\/0) 209707008<\/strong>
    \n3 unassigned wm 0 0 (0\/0\/0) 0
    \n4 unassigned wm 0 0 (0\/0\/0) 0
    \n5 unassigned wm 0 0 (0\/0\/0) 0
    \n6 unassigned wm 0 0 (0\/0\/0) 0
    \n7 unassigned wm 0 0 (0\/0\/0) 0<\/code><\/div>\n
    ———————————————————————————————————————————————————————————————————————————————<\/p>\n
    \n
    \n
    \n\n\n\n
    <\/td>\n\"\"<\/td>\n<\/td>\n\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n
    \n<\/div>\n<\/div>\n<\/div>\n
    \n
    \n
    \n
    \"\"<\/div>\n
    \n\n\n\n
    \n
    \n
    \n
     <\/p>\n\n\n\n
    <\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
    <\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
    <\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
    <\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
    APPLIES TO:<\/h2>\n
    Oracle Database – Enterprise Edition – Version 10.1.0.2 to 12.1.0.2 [Release 10.1 to 12.1]
    \nOracle Database Cloud Schema Service – Version N\/A and later
    \nGen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) – Version N\/A and later
    \nOracle Database Exadata Express Cloud Service – Version N\/A and later
    \nOracle Cloud Infrastructure – Database Service – Version N\/A and later
    \nOracle Solaris on SPARC (64-bit)
    \nSolaris Operating System (SPARC 64-bit)
    \n<br*\u00a0*** <br=””><\/p>\n
    <\/span><\/p>\n
    <\/a>SYMPTOMS<\/h2>\n
    Using\u00a0ASM\u00a0<\/strong>on any\u00a0\u00a0SOLARIS\u00a0<\/strong>platform and not using a volume manager to manage the disks.\u00a0 Under this circumstances, the disks are identified under path\u00a0\/dev\/rdsk<\/strong>.<\/p>\n
    The problem is the disks are not discovered when the instance is started.<\/p>\n
    Basic points that need to be reviewed:<\/p>\n
    * permissions of the device are set for the oracle owner, group and mode 0660.
    \n* Parameter asm_diskstring is configured with a value that resolves the disks to be used.<\/p>\n
    Queries over\u00a0v$asm_disk<\/strong>\u00a0does not return rows or does not return all the expected disks.<\/p>\n
    <\/a>CHANGES<\/h2>\n
    <\/a>CAUSE<\/h2>\n
    In Solaris the disks have a specific number of partitions (7) that are configured in order to manipulate the disk. \u00a0\u00a0format\u00a0<\/strong>is the command used to review\/configure the partitions.<\/p>\n
    Example:<\/p>\n
    Log in as root:<\/p>\n
    # format
    \nSearching for disks…done<\/p>\n
    AVAILABLE DISK SELECTIONS:
    \n0. c1t0d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>
    \n\/pci@1c,600000\/scsi@2\/sd@0,0
    \n1. c1t1d0 <SUN72G cyl 14087 alt 2 hd 24 sec 424>
    \n\/pci@1c,600000\/scsi@2\/sd@1,0
    \n2. c3t42d10 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1\/fp@0,0\/ssd@w226000c0ffa8796e,a
    \n3. c3t42d11 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1\/fp@0,0\/ssd@w226000c0ffa8796e,b
    \n4. c3t42d12 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1\/fp@0,0\/ssd@w226000c0ffa8796e,c
    \n5. c3t42d13 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1\/fp@0,0\/ssd@w226000c0ffa8796e,d
    \n6. c3t42d14 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1\/fp@0,0\/ssd@w226000c0ffa8796e,e
    \n7. c4t42d10 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1,1\/fp@0,0\/ssd@w226000c0ffa8796e,a
    \n8. c4t42d11 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1,1\/fp@0,0\/ssd@w226000c0ffa8796e,b
    \n9. c4t42d12 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1,1\/fp@0,0\/ssd@w226000c0ffa8796e,c
    \n10. c4t42d13 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1,1\/fp@0,0\/ssd@w226000c0ffa8796e,d
    \n11. c4t42d14 <SUN-StorEdge3510-411I cyl 51198 alt 2 hd 64 sec 64>
    \n\/pci@1d,700000\/SUNW,qlc@1,1\/fp@0,0\/ssd@w226000c0ffa8796e,e
    \nSpecify disk (enter its number): 2
    \nselecting c3t42d10<\/strong>
    \n[disk formatted]<\/p>\n
    You pick the disk you want by typing the number and now you will get this<\/strong>:<\/p>\n
    FORMAT MENU:
    \ndisk – select a disk
    \ntype – select (define) a disk type
    \npartition – select (define) a partition table
    \ncurrent – describe the current disk
    \nformat – format and analyze the disk
    \nfdisk – run the fdisk program
    \nrepair – repair a defective sector
    \nshow – translate a disk address
    \nlabel – write label to the disk
    \nanalyze – surface analysis
    \ndefect – defect list management
    \nbackup – search for backup labels
    \nverify – read and display labels
    \nsave – save new disk\/partition definitions
    \nvolname – set 8-character volume name
    \n! – execute , then return<\/p>\n
    then you type partition<\/strong>
    \nthen you type print<\/p>\n
    <\/strong>partition> p
    \nCurrent partition table (original):
    \nTotal disk cylinders available: 51198 + 2 (reserved cylinders)<\/p>\n
    Part Tag Flag Cylinders Size Blocks
    \n0 unassigned wm 0 – 51197 100.00GB (51198\/0\/0) 209707008<\/strong>
    \n1 unassigned wm 0 0 (0\/0\/0) 0
    \n2 backup wu 0 – 51197 100.00GB (51198\/0\/0) 209707008<\/strong>
    \n3 unassigned wm 0 0 (0\/0\/0) 0
    \n4 unassigned wm 0 0 (0\/0\/0) 0
    \n5 unassigned wm 0 0 (0\/0\/0) 0
    \n6 unassigned wm 0 0 (0\/0\/0) 0
    \n7 unassigned wm 0 0 (0\/0\/0) 0<\/p>\n
    <\/strong><\/div>\n
    Partition # 2 is a standard partition and it SHOULD NOT be changed as it reflects the total capacity of the disk.<\/p>\n
    All other partitions are available for the configuration.<\/p>\n
    All this information for the partitions and other data is contained in a special structure stored within the first 512 bytes of the disk, on the first cylinders.<\/p>\n
    This structure is called\u00a0VTOC\u00a0<\/strong>\u00a0(Volume Table of Contents).\u00a0 Actions like re-writting the VTOC will cause loosing the disk.<\/p>\n
    The output displayed above is a typical configuration, where slice 0 was formatted using the entire disk.<\/p>\n
    When using\u00a0ASM\u00a0<\/strong>and during the disk discovery, the previous configuration is the cause for missing disks or disks not been discovered.<\/p>\n
    The reason seems to be that having partitions that start at cylinder 0, the complete partition\u00a0 is interpreted as the\u00a0VTOC\u00a0<\/strong>area which is not\u00a0 used as a regular partition of the disk.<\/p>\n
    <\/a>SOLUTION<\/h2>\n
    Modifying the partitions, starting few cylinders ahead (1 or 2 to avoid wasting space), will help\u00a0ASM\u00a0<\/strong>to discover the disk.<\/p>\n
    The following output displays the disk originally presented, but now with partition 0 starting\u00a0 at cylinder 3:<\/p>\n
    Part Tag Flag Cylinders Size Blocks
    \n0 unassigned wm 3 - 51197 100.00GB (51198\/0\/0) 209707008<\/strong>
    \n1 unassigned wm 0 0 (0\/0\/0) 0
    \n2 backup wu 0 - 51197 100.00GB (51198\/0\/0) 209707008<\/strong>
    \n3 unassigned wm 0 0 (0\/0\/0) 0
    \n4 unassigned wm 0 0 (0\/0\/0) 0
    \n5 unassigned wm 0 0 (0\/0\/0) 0
    \n6 unassigned wm 0 0 (0\/0\/0) 0
    \n7 unassigned wm 0 0 (0\/0\/0) 0<\/code><\/div>\n
    The disk configured was c3t42d10 and the partition selected was 0 (S0<\/strong>), which is reflected as \/dev\/rdsk\/c3t42d10S0<\/strong>.<\/p>\n
    Having a valid value for parameter asm_disktring that resolves \/dev\/rdsk\/c3t42d10S0 and running a query on v$asm_disk will now discover the disk and it will be available for\u00a0ASM<\/strong>.<\/p>\n
    <\/br*\u00a0***><\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
    \uc194\ub77c\ub9ac\uc2a4 Solaris \uc5d0\uc11c Oracle ASM \ub514\uc2a4\ud06c Disk \uc778\uc2dd\uc774 \uc548 \ub420 \uacbd\uc6b0   \uc2e4\ub9b0\ub354 \ubc88\ud638 \ub098 \ud560\ub2f9 \uc601\uc5ed\uc744 \uccb4\ud06c\ud574 \ubd10\uc57c \ud569\ub2c8\ub2e4.   ASM \ub514\uc2a4\ud06c \uc99d\uc124\uc778 \uacbd\uc6b0 prtvtoc \uba85\ub839\uc5b4\ub85c \uae30\uc874\uc5d0 \ud560\ub2f9\ub41c asm \ub514\uc2a4\ud06c \ub97c \ud655\uc778\ud574\uc11c \ub3d9\uc77c\ud558\uac8c \ud30c\ud2f0\uc158 + \uc2e4\ub9b0\ub354\uac00 \uad6c\uc131 \ub418\uc5b4\u00a0 \ubc1b\uc740 \uac74\uc9c0 \ud655\uc778 \ud569\ub2c8\ub2e4.   \uc2e0\uaddc \uc124\uce58\ud558\uc5ec \ucc98\uc74c \ubc1b\uc740 ASM \ub514\uc2a4\ud06c\uac00 \uc778\uc2dd\uc774 \uc548\ub418\ub294 \uacbd\uc6b0\ub77c\uba74\u00a0512 \ubc14\uc774\ud2b8 \uc774\uc0c1 […]<\/p>\n","protected":false},"author":1,"featured_media":4556,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"categories":[9],"tags":[72,269,1270,267,1268,1267,1269],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/haisins.synology.me\/wordpress\/wp-content\/uploads\/2021\/11\/ASM.png?fit=224%2C146","amp_enabled":true,"_links":{"self":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4715"}],"collection":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4715"}],"version-history":[{"count":1,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4715\/revisions"}],"predecessor-version":[{"id":4716,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4715\/revisions\/4716"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/4556"}],"wp:attachment":[{"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4715"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/haisins.synology.me\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}