oracleasm querydisk multipath. SOLUTION: # oracleasm status Checking if ASM is loaded: no Checking if /dev/oracleasm is mounted: no Load the oracleasm module # oracleasm init Creating /dev/oracleasm mount point: /dev/oracleasm Loading module “oracleasm”: oracleasm Configuring “oracleasm” to. After these steps were done, the label matched with the Disk. 我们知道,在同一台服务器上可以创建同一版本的多个Oracle数据库,如,假设当前服务器上只安装了一套10. [[email protected] ~]$ oracleasm querydisk -d ASMDISK01 Disk "ASMDISK01" Is a valid ASM disk On device[8,17] As see you, ASMDISK01 is valid ASM disk on device [8,17]. Configure ASMLIB to use multipath (from each node on RAC environments): By any path the ASMLIB can found the disks, but, the best path is using the multipath : Modify in /etc/sysconfig/oracleasm : ORACLEASM_SCANORDER=”dm” ORACLEASM_SCANEXCLUDE=”sd”. asmlibmark=$(/sbin/service oracleasm querydisk "/dev/dm-$minor"). Finally, the owner of the ASM disk is root. How to create Oracle ASM disks using disk or multipath. d/oracleasm querydisk VOL1 Disk “VOL1” is a valid ASM disk on device [8, 17]. First find the major,minor numbers for the device ASMlib is using. 儘量使用多塊大小相同的磁盤創建同一磁盤組,這樣做的好處有兩點: a. 1 - oracleasm_scanorder, which tells ASMLIB the order to scan the devices, using the generic prefix, 2 - oracleasm_scanexclude, which tells ASMLIB which devices should not be discovered. by Prakash on December 28, 2014 • Permalink. Method 2: We need to find DATA01 is assigned to which partition on linux. Execute below commands on all nodes. The presence of the "oracleasm querydisk" command indicates you have ASMLib, and the command tells you the standard device name of each ASM disk device it sees. 加入6块硬盘,每块100g。不管是热加还是冷加。不管是加硬盘,用san存储划lun,或者再加上多路径,都是能够这么做的。. In other words, ASMLib will ignore those disks completely. group:1 disk:0 AU:114682 offset:512 size:1048064 path:/dev/oracleasm/asm_disk1 incarnation:0xe968a075 asynchronous result:'I/O error' subsys:System iop:0x7fd93c64b680 bufp:0x7fd93b64e000 osderr:0x0 osderr1:0x0 WARNING: failed to read mirror side 1 of virtual extent 13 logical extent 0 of file 294 in gr oup [1. # yum install device-mapper-multipath # chkconfig --list # chkconfig multipathd on # chkconfig iscsi on # chkconfig iscsid on. Alternately, you can set the user_friendly_names option in the multipath configuration file, and Device Mapper Multipathing, as a Linux native multpath tool, creates a block device under /dev/mapper for each LUN attached to the system with a node-unique name of the form mpathN. To make the disk available enter the following commands: 7. # oracleasm listdisks | xargs oracleasm querydisk -p | grep mpath /dev/mapper/mpathe1 . The multipath device /dev/multipatha certainly matches. 6 64-bit x86_64)" channel on Red Hat Network (RHN). The first call was to stop asmlib, disable asmlib, enable asmlib, start asmlib and perform a scandisk. On other nodes, just scandisks & listdisks. However, I fail to find an oracleasm binary that could “format” the disks. For RHEL5, it is recommended to use ASM with partitioned block devices. С правами root: [[email protected] ~]$ oracleasm listdisks. ASM Concepts ASM manages only database files OMF including datafiles, tempfiles, control files, online redo logs, archive logs, RMAN backup sets, server parameter files, change tracking files, and flashback logs An ASM instance is required on each node Does not have datafiles, controlfile, redologs and dictionary Processes dedicated for ASM are RBAL and ARBn Stripe…. Use the querydisk option to determine if a disk device or disk name is being used by . To identify the underlying physical device that the ASM disk point to, you can use the oracleasm querydisk command. ASMLib will then ignore them, only scanning the multipath disks. Première étape : Installation du package oracleasm-support , kmod-oracleasm: Updating certificate-based repositories. 4 创建磁盘组 ASM 创建磁盘组,是在ASM 实例里操作,以记录磁盘组使用的磁盘和容量等元数据 信息。可以通过SQLPLUS 或ASMCMD,以及ASMCA 工具配置。. 在上一篇文章 Oracle 10g RAC 配置物理dataguard系列1:RAC主库信息概览、备库准备工作 中,我们了解了双节点RAC主库的基本信息,并且成功创建了一台将来用作物理备库的机器。 在本篇中,我们将完成以下任务: 在物理备库机器上安装oracle 10g 数据库软件; 在物理备库机器上升级oracle 10g 软件到10. Verify Multipath Devices: Once multipathing has been configured and the multipathd service started, the multipathed devices should now be available. Installation et configuration OracleASM RED HAT 6. Also, on both nodes, the command "/etc/init. I have suggested a query will this give me what I need : [[email protected] ~]# /etc/init. d/oracleasm querydisk -d /dev/emcpowera1 Device “/dev/emcpowera1” is marked an ASM disk with the label “ARC1”. The querydisk argument can be used for this purpose: /etc/init. Thus two concurrent operations cannot be made using a SCSI protocol. How to find ASM disks mapping to physical disks. It's just my curious with this forum on oracle. To administer the Oracle Automatic Storage Management library driver and disks, use the /usr/sbin/oracleasm initialization script with different options, as described in the following table: Table A-4 Disk Management Tasks Using ORACLEASM. Conversely, the administrator could specify that the multipath disks are scanned first. 1 configuration Linux multipath installation oracle 11g rac, Programmer Sought, # /etc/init. If you have done multipath configuation, please issue below command: # /etc/init. Do a listing of the device using ls – ltr command on all the nodes in the cluster. # Automatic Storage Management library kernel driver. For us SA's however it's a mixed bag of good and not-so-good. d/oracleasm scandisks $ /etc/init. asmcmd lsdsk -p asmcmd lsdsk --candidate -p -- if you use ASMLib /usr/sbin/oracleasm listdisks /usr/sbin/oracleasm querydisk {DISKNAME . 模拟 linux 双网卡双 ip ,实现 multipath 多路径连接存储. SQL> conn / as sysdba Connected. Please correct me if I am wrong, or missing something. Ensure that the allocated devices can be seen in /dev/mpath: 8. d/oracleasm listdisks works on LVM dm-* devices until a reboot/restart. Expanding the lun on the storage was fairly straightforward on the EMC Clariion on which the data was residing. d/oracleasm querydisk -d `/etc/init. Oracle ASM Administration. /oracleasm querydisk DATA1 Disk "DATA1" is labeled for disk "DATA4" Well, something was wrong, but did not know what. emcpower) /dev/rd/cxdypz /dev/ida /c0d1 /dev/ida/cxdypz RAID disk Use the oracleasm script with the configure option querydisk: Use this option to determinate whether a disk device or disk name is being used by the ASM library driver. Reload the multipath daemon # service multiapthd reload. I want to know the the missing DISK info according to the multipath -l command. d/oracleasm scandisks /etc/init. Multipath LVM I/O scheduler VFS Application program Page cache chpid 5 SCSI driver zFCP driver qdio driver Server 0 Server 1 ranks 8 6 4 2 DA. d/oracleasm querydisk -d $ASM_disk | awk . About Disk Scan Ordering The ORACLEASM_SCANORDER variable specifies disks to be scanned first. d/oracleasm createdisk VOL3 /dev/sdd1 #/etc/init. 1) Last updated on FEBRUARY 12, 2019. Deep inside the storage array or SAN is the SCSI protocol that basically performs the read/write operation; unfortunately, SCSI was never designed for multipath access. ㅁ [racdb1, racdb2 RHEL] /etc/multipath. But if dm-multipath is involved, then RHEL 5. I didn't know that ASMLib treats ID LUN. 小麦苗db宝,实用经典,简单易懂,接地气!技术应用型博客,主打实用性,多做实验,多思考! 道阻且长,行则将至,行而. 3 Create one or more volumes for database Data and Temp files. d/oracleasm listdisks ASM1 ASM2 ASM3. One would assume that Oracle ASMLib would be available to configure Oracle ASM devices but to my surprise realized that Oracle has now decided to. The article explains how to troubleshoot Oracle ASM disk creation. As a first debug step read the ASM disk header block and verify the ASM disk header status Gather info for available ASM Disks Note ASM disks … Continue reading Troubleshooting ASM disk related issues using kfed and kfod. It do not lists any disk which is missing. The Fast Recovery Area is a unified storage location for all Oracle Database files related to recovery. d/oracleasm configure you should see a new device: # df -ha |grep asm # /etc/init. listdisks List known Oracle ASMLib disks. There could be some product applications relying on the device number output. Now check for device with 65,33. Contribute to szaydel/Rigel-Major development by creating an account on GitHub. For Red Hat Enterprise Linux 6 (beginning with 6. d/oracleasm querydisk -p If you are using multipath devices (mapper devices or emcpower) then show me the output of: oracleasm-support-2. As suggested by Linux "man multipath", I've made the /var/lib/multipath/bindings the same on both servers "to ensure That the multipath devices have the same names on all nodes accessing them" : # Format: # alias wwid mpath0. After rebooting, an oracleasm querydisk of that disk shows it using the major/minor #'s for the vpath instead of the sd. Overview KFOD is a utility to verify disks before installing Grid Infrastructure KFED is a utility that can be used to read and modify ASM metadata blocks. Managing data under ASM disks and diskgroups is very important task for a DBA. On all nodes of the cluster stop crs service, then scan asm disks and finally start crs again with the following three commands (you also have to add the iscsi lookup and the multipath config on each node):. First make sure that ASM disk is no longer used by any disk group, otherwise, you might risk data integrity. In this article, we will be looking at general ASM administration tasks you must know. but, it points to the /dev/oracleasm/disks/* which contain files of BLOCK type. Contexte : Disque de baie de 200Go, mirroring matériel, deux serveurs Linux Red Hat 5. ㅁ [racdb1 RHEL] 신규 볼륨 파티셔닝(하나의 서버에서만 진행하면됨. 3, it shows: The device number disappeard. Oracle Apps DBA Support and troubleshooting. Also verify that the ASM disk labels are now using the appropriate Linux native device-mapper multipath-generated names by issuing the following command: # oracleasm querydisk -p The output should be similar to the following example for all configured ASM disks: Device is marked as an ASM disk with the label "ASM_DISK. 單個磁盤的大小不要大於2T,因爲超過2T的磁盤無法創建磁盤組。 2. If it is successfully loaded, output similar to the following is displayed:. d/oracleasm scandisks Scanning system for ASM disks: [ OK ] # The stamped disks are listed as follows. ppt,讲座目标 只要坚持遵从一些最佳应用,在 Linux 上实施真正应用集群就应该会相对简单一些 演示基于 RAC Pack 客户对 9i 和 10g 体验的最重要的 RAC 最佳应用, 一般的和 Linux 特定的最佳应用 没有其他特定平台 重点讲述 10g 免责声明 议程 规划最佳应用 体系结构考虑事项. querydisk Determine if a disk belongs to Oracle ASMlib -p nos permite obtener sobre que alias de multipath se ha creado el disco ASM:. 检查确保表空间是自包含也就是检查表空间的对象不依赖于其它表空间的对象而独立存在. Confirmed using the oracleasm querydisk Pei/dev/emcpower < x >. d/oracleasm createdisk and verified with listdisks and querydisk. If using RAC, no need to create partition & stamp with oracleasm on another nodes. SOLUTION Modify parameter ORACLEASM. To save me from this, I found this great post by Alejandro Vargas, with a very nice script to make this mapping easier. No part of this work may be reproduced, stored in a retrieval system, adopted or transmitted in any form or by any means, electronic, mechanical, photographic, graphic, optic recording or otherwise, translated in any language or computer language, without the prior written permission The following is intended to outline our general product direction. ASM Disk Shows PROVISIONED On One RAC Node. In asmlib two disks had been configured to point to the same disk multipath /dev/mapper/mpathc1 (DATA03) and /dev/mapper/mpathc (FRA), when creating FRA diskgroup the DATA03 was lost. > 新建的磁盘 multipath -ll 是能看到的,但是被rac使用的原来的磁盘看不到。 Maybe you should reboot it. oracleasm listdisks (to verify they have been deleted) d. Oracle Grid Infrastructure Installation Guide For Linux RAC 09 PDF 121 GRIDInstallation And Upgrade E48914 22. Below is the sequence of actions to reproduce the issue. SDD (Subsystem Device Driver) is the pseudo device driver designed to support the multipath configuration environment in IBM products. Step 2: Running 'kfed' Oracle utility. /oracleasm querydisk ORAVOL1 ORAVOL2 ORAVOL3 ORAVOL4 ORAVOL5 ORAVOL6 ORAVOL7 ORAVOL8 ORAVOL9 ORAVOL10 ORAVOL11 ORAVOL12 ORAVOL13 ORAVOL14 ORAVOL15 ORAVOL16 Disk "ORAVOL1" is a valid ASM disk on device [253, 4] Disk "ORAVOL2" is a valid ASM disk on device [253, 2]. 首先要配置 iscsi 存储,再其次一下操作,我这里配置了两个 ISCIS 存储. How to Configure LUNs for ASM Disks using WWID, DM-Multipathing, and ASMLIB on RHEL 5/OL 5 and RHEL 6/OL 6 (Doc ID 1365511. # yum install oracleasm-support Download the package Oracle ASMLib 2. When running oracleasm querydisk VOL1 you will get in addition the major - minor numbers, that can be used to match the physical device, ie: [[email protected] ~]# /etc/init. In a multipath configuration, please use the multipath name [[email protected] ~]# oracleasm listdisks | xargs oracleasm querydisk -p Disk “ADMIN_DG” is a valid ASM disk. Prepare new disk devices for ASM with ASMLib (multipath) 1. 然后在服务器上通过 multipath [[email protected] mnt]# oracleasm querydisk DATA. Scanning system for ASM disks…. d/oracleasm querydisk DATA1 Disk “DATA1″ is a valid ASM disk on device [120, 6] Hot resize Multipath Disk – Linux ;. harry potter: hogwarts mystery stuck on loading screen. The system administrator configures ASMLib to scan the multipath disks first. The dm should be redundant, but we include it. 1 Identifying Storage Requirements for Oracle Automatic . 5 Create one or more volumes for the Flash Recovery Area. Online Data Migration with Removal of EMC PowerPath. oracleasm querydisk 次のように querydisk オプションを使用して、ディスク・デバイスまたはディスク名がOracle Automatic Storage Managementライブラリ・ドライバで使用されているかどうかを確認します(diskname_devicenameは、問い合せるディスクまたはデバイスの名前です。. Configure ASM library to use multipath propagation of disks on Linux operating system, but more importantly, how to preserve online/running ASM instance, during loss one of the paths to disks, is shortly described below. 7 MB/s [[email protected] dev]# oracleasm querydisk /dev/xvdj1 Device "/dev/xvdj1" is marked an ASM disk with the label "OCRVOTING_AA02" [[email protected] dev]# dd if=/dev. If the queried device is not an ASM disk, then FAILED will be displayed between the brackets. Add the new disk to the disk group. # oracleasm querydisk DISK01 Disk "DISK01" is a valid ASM disk. d/oracleasm listdisks The listdisks on both nodes showed that the ASM disk ASMFS02 was created and visible. A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. 1 About the Fast Recovery Area and the Fast Recovery Area Disk Group. Log in as root and install the Oracle ASM packages. As suggested by Linux "man multipath", I've made the mpath]# /etc/init. Disk “OCR_VD_NEW_1” is a valid ASM disk [[email protected] ~]$ oracleasm querydisk OCR_VD_NEW_2. 0 # NOTE: this file is automatically maintained by the multipath program. In order for multipath devices to be presented in asm when loading the OS, you need to check the following settings. 3 and above, only the QLogic and multipath inbox drivers are . Disk “DB_DATA01” is a valid ASM disk on device /dev/sdl[8,176]. So I did some small changes to adapt it. scandisks Scan the system for Oracle ASMLib disks. d/oracleasm querydisk /dev/mapper/* check whether the oracleasm lib driver package is installed correctly. The remaining package provides the kernel driver for the ASMLib (loaded into the OS kernel at system boot). ctrlm ~ ctrlb ==> break sequence for Sun Fire 280R 866-784-4772 3 2 ----->Tech. Terms: Operating System: Enterprise Linux 4 U5 (RHEL4 U5) Oracle: 10. This will instantiate the disk. ASMLib will see them first, and prefer them over the single paths. # oracleasm listdisks | xargs -i oracleasm querydisk -p {}. Instead of relying on the default, you should configure Oracle ASM to recognize the multipath disk. oranode1:/home/oracle # /etc/init. > [root landnet-rac2-temp dev]# /etc/init. d/oracleasm querydisk DAT Disk "DAT" does not exist or is not instantiated. OCR_VD_NEW_3 [[email protected] ~]$ oracleasm querydisk OCR_VD_NEW_1. ===== identify the actual disk location/ disk name / disk type ===== /etc/init. The querydisk option will list the major . The ASM disk header can not be recovered (Help Me. Here's an example: say a system has one local disk, /dev/sda, and one disk attached via external storage. The oracleasm querydisk command adds the -d and -p options. But it’s not direct, which causes some manual work. querydisk Determine if a disk belongs to Oracle ASMlib. このウェブサイトは、あなたが我々のウェブサイトで最高の経験を得ることを確実とするために、クッキーを使います。. ls -lrt asm001p1 you can see the partition here. 1 root root 24 Mar 9 16:01 /etc/sysconfig/oracleasm -> oracleasm-_dev_oracleasm $ cat /etc. 3)If you are using ASMLib for configure ASM Disks, then you can use following steps for define which device mapped which ASM Disk-As you know, oracleasm listdisks is return only ASM disk names [[email protected] ~]$ oracleasm listdisks ASMDISK01 ASMDISK02. Yes, asm is configured with asm libraries. root# parted /dev/mapper/ mklabel msdos unit s mkpart primary "1 -1". This StyleSheet can be used directly by languages such as Chinese, Japanese and Korean. Oracle EBS Cloning, Oracle EBS Patching, Oracle Data Guard, Oracle RAC, SSL/TLS, Oracle RMAN. oracleasm createdisk FRA02 /dev/mapper/mpath2 more /etc/sysconfig/oracleasm ===== Plan to add new disk for correcting imblanced disks. connection for reset passwd of boks A164396 - SHAI734# ESMA - [email protected] To generate the SQL commands, connect to the OMS database and run below SQLs to generate the commands. permission of asmdisk --from all nodes ll 4. Best practices for ASM on Linux : 1. 0 - 64bit production with the partitioning, olap, data mining and real application testing options sql> select path from v$asm_disk; path -------------------------------------------------------------------------------- /dev/oracleasm/disks/vol2 /dev/oracleasm/disks/vol1 sql> …. Hi We have SAN disk partitions presented to 2 Redhat Linux servers, running Oracle RAC (cluster) ASM. 8+Oracle12CR2+ASM 除了最后的验证只需要在1台服务器上执行,其他的操作都需要在2台服务器上执行一遍!. Matching patterns to order multipath disk scan ORACLEASM_SCANORDER="mpath . To get the absolute device path for the disks used while creating an ASM disk, we can use the below command: # oracleasm querydisk -p VOTEDISK1 Disk "VOTEDISK1″ is a valid ASM disk /dev/sdc1: LABEL="VOTEDISK1″ TYPE="oracleasm". Well for this you can use oracleasm querydisk. cat /etc/multipath_binding (It will return to you all the disks in mapped in multipath)-----[[email protected] ~]# cat /etc/multipath_binding # Multipath bindings, Version : 1. KTO SME A ČO PONÚKAME; PROJEKT JELŠOVÉ; PROJEKT HLINY. d/oracleasm listdisks But listdisks lists the disks according to the NAME given in ASM. Installation einer Oracle Real Application Cluster 18c Umgebung auf Oracle Linux x64 7. ASMLib allows two modifications to the disk scan order. In a multipath configuration, please use the multipath name [ [email protected]:/home: ]$ oracleasm listdisks | xargs oracleasm querydisk -p. d/oracleasm querydisk /dev/sdg Excluding devices and explicitly setting the scanorder can be useful for multipath devices. ASMLib runs this scan every time it starts up. d/oracleasm querydisk land4 > Disk "LAND4" is a valid ASM disk on device [8, 32] <<== note the number And that is /dev/sdc. The Linux SCSI driver will see both paths. [[email protected] ~]$ oracleasm querydisk -d ASMDISK01 Disk "ASMDISK01" Is a valid ASM disk On device [8,17] As see you, ASMDISK01 is valid ASM disk on device [8,17]. Here are the simple steps for mapping between ASM disks and physical disks in Linux. To create the disk device for use with the Oracle Automatic Storage Management library driver, we issue this command: usr/sbin/oracleasm createdisk Vol01 /dev/sdb1. To add an index to an existing attribute: Invoke Oracle Directory Services Manager and connect to the Oracle Internet Directory server as described in "Invoking Oracle Directory Services Manager". d/oracleasm querydisk VOL1 Disk "VOL1″ is a valid ASM disk on device [8, 17] You can find out which devices this represents with the. d/oracleasm createdisk ASMDISK1 /dev/loop1 ASM with Multipathing: [Doc ID 294869. This step is only necessary if you want ASM to access the disks as raw devices. EXTRACT groups on RAC systems should be created. Set up an YUM repository using the DVD image. Then oracleasm createdisk for each LUN mapped by infinihost. Configuring multi-path entries and reloading . ASMLib examines each disk in the system. To create the disk device for use with the Oracle Automatic Storage Management library driver, we issue this command: usr/sbin/oracleasm createdisk Vol01 /dev/sdb1 usr/sbin/oracleasm createdisk Vol02 /dev/sdc1. It should not ignore other SCSI disks. 查询transport_set_violations视图,来查看是否有违反依赖的对象存在. d/oracleasm querydisk /dev/multipath/sdb2 srvctl status asm -n linux1 [email protected] ~# srvctl status asm -a Posted by Anuj Singh at Thursday, October 28, 2010 No comments: Newer Posts Older Posts Home. You download the ASM software ASMLib software from OTN. First of all, we need to be sure, that asm library is taking correct partitions (bold ones): cat /proc/parttitions. □ querydisk: Use this option to determinate whether a disk device or disk name is being used by the ASM library driver. oranode1:/home/oracle # multipath -ll. [[email protected] mnt]# oracleasm listdisks cRS DATA FRA. Note: this article is only applicable when using ASMLib on LVM-managed devices. Additional configuration is required to use the Oracle Automatic Storage Management library Driver (ASMLIB) with third party vendor multipath disks. [[email protected] asmserver101/] # / usr / sbin / oracleasm querydisk . It will ask for the user and group that default to owning the ASM driver access point. #/usr/sbin/oracleasm querydisk /dev/sdk1 Device "/dev/sdk1" is marked an ASM disk with the label "DISK01" Also,we can check with listdisks # /usr/sbin/oracleasm listdisks DISK01. defaults { user_friendly_names yes } ## By default, devices with vendor = "IBM" and product = "S/390. udev and multipath setup for Oracle ASM 11. d/oracleasm querydisk does not show disk number on a valid ASM disk as before. 2 oder höher nicht freigegeben ist. d/oracleasm querydisk -d DSKORA1 Disk "DSKORA1" is valid ASM disk on device [253, 6] Good Luck ! Share this post: on Twitter on Facebook on Google+. ASM disks to physical disks — oracle. I used dbca to create an ASM instance and then manually tried to create diskgroups with the follwing command: SQL> l 1 create diskgroup dgroup1 external redundancy 2* disk '/dev/oracleasm/disks/*' SQL> / create diskgroup dgroup1 external redundancy * ERROR at line 1: ORA-15018: diskgroup cannot be created ORA-15031: disk specification '/dev. The querydisk option will list the major and minor numbers that can be used to match the physical device. ORACLEASM_UID=grid # ORACLEASM_GID: Default group owning the /dev/oracleasm mount point. Installing the package oracleasm-support: The package oracleasm-support is existed on the Oracle Linux DVD. For Multipath [[email protected] ~]# multipath -ll mpath1 dm-4 IBM DS size=10G features='0' hwhandler='0' wp=rw. Disk "FLASH01" is a valid ASM . Updates and support for this module will be provided by Red Hat. SETUP ASM&ASMLib on Multipath Disks. In the ASMLib configuration file she edits the ORACLEASM_SCANORDER variable to look like so: ORACLEASM_SCANORDER="multipath sd" During a scan, ASMLib first tries all disks that start with "multipath". Log in dbalifeeasy August 29, 2017 ASM, Premium Content /dev/oracleasm/disks/ blkid lsblk major and minor Mapping of ASM Disks to Physical Disks multipath -l|grep -i ocr_vote oracleasm listdisks oracleasm querydisk -p -d Leave a comment. This allows ASMLib to choose the multipath disk and make it available to Oracle. Install #OUI and DBCA may be used for installation from any node in RAC #The packages are located in OS dvd media in #. The system administrator wants ASMLib to see multipath disks before it sees single path disks. On all nodes(RAC) : As root run: # /etc/init. BOOT the server Now other major and minor numbers are used: # multipath -l 1HITACHI_D60H02610121 [size=1 GB][features="0"][hwhandler="0"] \_ round-robin 0 [active] \_ 1:0:1:0 sdi 8:128 [active][ready] \_ round-robin 0 [enabled] \_ 2:0:1:0 sdam 66:96 [active][ready] # /etc/init. for example you can see this below example. d/oracleasm querydisk -d ARC1 Disk "ARC1" is a valid ASM disk on device [8, 38]. [[email protected] ~]# oracleasm querydisk -d DATA2 Disk "DATA2" is a valid ASM disk on device [ 8,177 ] Ótimo, agora basta verificar no /dev fazendo um grep buscando o device 8, 177:. Create Directory Under ASM Diskgroup Find ASM physical disk mapping Create Diskgroup ASM Create Tablespace in Oracle ASM Create Directory Under ASM Diskgroup In this activity, you will understand how to create directories inside. and later (package oracleasm-support-2. ASMLIBLinux OS Service 'oracleasm'Service NameoracleasmDescriptionThe oracleasm service is used to provision, configure and manage Oracle Automatic Storage Management (ASM) disks via the Oracle Automatic Storage Management library driver (ASMLib). ASMLib seems to be started too soon to scan iSCSI disks which may not be ready on boot in Enterprise Linux 7. Disk "VOL1" is a valid ASM disk on device [8, 97]. oracleasmlib --- can be the latest version of correct 32 or 64 bit version. STEP 1) CHECK CURRENT DISKS STEP 2) CHECK ASM TO PHYSICAL DISK MAPPING. d/oracleasm configure Configuring the Oracle ASM library driver. d/oracleasm scandisks > Scanning system for ASM disks: OK ] > [root landnet-rac2-temp dev]# /etc/init. d/oracleasm querydisk -d DSKORA1 Disk "DSKORA1" is valid ASM disk on device [253, 6] Good Luck !. 1 About Using Oracle ASM with Multipath Disks. Start oracleasm: [ Do on all nodes ] # /etc/init. The -p option will attempt to locate matching device paths if the blkid(8) tool is installed. d/oracleasm querydisk -d VOL1 Disk "VOL1" is a valid ASM disk on device [8, 33] The command reports the device identified with major,minor numbers which are unique numbers associated to each disk. To get the absolute device path for the disks used while creating an ASM disk, we can use the below command: # oracleasm querydisk -p VOTEDISK1 Disk “VOTEDISK1″ is a valid ASM disk /dev/sdc1: LABEL=”VOTEDISK1″ TYPE=”oracleasm”. d/oracleasm querydisk DATA1 Disk "DATA1″ is a valid ASM disk on device [120, 6] Certain detection systems actually fail to auto-detect cases of stale filesystems when using dm-multipath. If you want find which ASM disk is mapped which device, then you must use oracleasm querydisk with ASM disk name. 重启multipathd服务: · 通过multipath命令查看多路的配置是否合理。 · 检查集群和数据库是否能正常启动 · 实际上数据是存储在磁盘上,单路径设备和多路径设备只是我们对于 . The -d option will display the device number of the queried disk. 5 über 2 Rechenzentren November 2018 Aufgabe: Installation einer Oracle 18c Real Application Cluster Umgebung über zwei Brandabschnitte unter Oracle Linux 7, als Datenbank muss aber immer noch Oracle 11g R2 11. Such kind of disk header corruption/missing issues can be taken care by running kfed with ‘repair’ command. My asm commands, querydisk, listdisk, scandisk were working fine. While scanning, ASMLib will ignore those paths, only seeing the /dev/multipath disk. Oracle OUI will not detect ASM disks on EqualLogic PS6100. 0:public --> ethernet device name/new ip:public. If you are using ASMLIB Support Tools 2. ASMLib driver, Linux RPM's, Filesystem layout, •Grid Infrastructure installation and a patching workaround, Oracle RDBMS installation, •Oracle RAC One-Node Database installation, •RAC One-Node relocation from one node to another. Installing with OracleASM packages and dependencies. /usr/sbin/oracleasm configure -i. When you have create new asmdisk on one of cluster node, you need to scan disks on other nodes. With ASM, you can ensure the discovery of a multipath disk by setting the value of the initialization parameter ASM_DISKSTRING equal to the name of the pseudo device that represents the multipath disk. Download the oracleasm package corresponding to your kernel version. 1] Because a single disk can appear multiple times in a multipath configuration, you must configure ASM to discover only the multipath disk, by setting ASM_DISKSTRING equal to the name of the pseudo device that represents the multipath disk. In Linux, when loading the device, the device name of the shared disk may be inconsistent due to the loading order problem. # /usr/sbin/oracleasm configure -I. Disk “OCR_VD_NEW_2” is a valid ASM disk [[email protected] ~]$ oracleasm querydisk. Example 4: Check ASM Disk Group device path name. d/oracleasm querydisk VOL1 Disk "VOL1" is a valid ASM disk on device [8, 97]. d/oracleasm listdisks | xargs /etc/init. for this we will use oracleasm querydisk command. Heartbeat Dead Threshold: is the number of two-second iterations before a node is considered dead. For example, if the used multipathing device is /dev/md1, you have to force the ASMlib to…. DATA17 / dev/emcpowerw / dev/emcpoweru. #devnode_blacklist { # devnode "*" #} ## Use user friendly names, instead of using WWIDs as names. The following example was run on a virtual server hosting ASM and an Oracle database. d/oracleasm listdisks or col NAME format a10. Multipathing, RAC et ASM [[email protected] ~]# oracleasm querydisk -d ASM_ARCH_01 Disk "ASM_ARCH_01" is a valid ASM disk on device [8, . How to map Device Mapper Multipathing and ASM, this could be useful when using [[email protected] ~]# oracleasm querydisk -d data_disk1 Disk . Oracle strongly prefers that DB-related files are stored directly in ASM, not on an ACFS filesystem. Automatic Storage Management ( ASM) is a new feature in Oracle 10g onward provides a state of the art storage for Oracle database files. Using this you can identify which device as marked for asm or not. 之后,PST会被缓存在ASM缓存中,以及GMON的PGA中并使用排他的PT. This article presents the setup details for using either raw devices or ASMLib, as well as the procedures for converting between both methods. Scanning for LUN's in Oracle Linux servers. oracleasm createdisk vol1 /u01/app/oracle/data. 6 + they introduced UDEV and device-mapper multipath which includes raw disk support as well as multipath IO options for disks, with persistent device naming. What is means? It means ASMDISK01 is mapped to device [8,17]. cat /proc/modules to verify that SDD sdd-mod driver is loaded. I'll describe how to do it manually. In each case, I created ASM disks using /etc/init. Label of the ASM / dev/emcpowerv / dev/emcpowert. This solution answers my question of “How do I know what device ASMlib has actually found and that it is using the multipath device?”. [[email protected] ~]# man oracleasm-querydisk [[email protected] ~]# oracleasm listdisks | xargs oracleasm querydisk -p Disk "ARCH" is a valid ASM disk /dev/mapper/mpathcp1: LABEL="ARCH" TYPE="oracleasm" Disk "DATA2" is a valid ASM disk /dev/mapper/mpathe: LABEL="DATA2" TYPE="oracleasm" Disk "FLASH" is a valid ASM disk /dev/mapper/mpathd: LABEL="FLASH" TYPE. 9-5 kernel for an SMP (multiprocessor) server using Intel i686 CPUs. on other RAC nodes: oracleasm listdisks (to verify they have been deleted too) e. for i in `oracleasm listdisks` do oracleasm query 随机推荐 IT公司100题-35- 求一个矩阵中最大的二维矩阵(元素和最大). service oracleasm querydisk ORACLE_ASM_D1 Disk "ORACLE_ASM_D1" is a multipath { wwid 360a98000486e616e504a512345678908 alias mpatha } . status Display the status of the Oracle ASMLib driver. /proc/partitions echo "-> ASMLIB disks discover" /etc/init. ORACLEASM_SCANEXCLUDE="sdb sdc". Configure SCSI_ID to Return Unique Device Identifiers: 2. If the database was running as the 'oracle' user and the 'dba' group, the output would look like this: [[email protected] /]# /etc/init. d/oracleasm querydisk -d VOL4 Disk "VOL4" is a valid ASM disk on device [251, 97]. Provide information as prompted for your system. The oracleasm services creates the necessary library interface through which ASM disk devices are made available to Oracle ASM (instance. Now scan the problem device (remember at this stage, the ASM disk was created using createdisk command) /usr/sbin/oracleasm scandisks -v /dev/device-name. On Linux, ASM is capable of referencing disks as raw devices or by using the ASMLib software. 次のように querydisk オプションを使用して、ディスク・デバイスまたは . Please use that method # to modify this file # # ORACLEASM_ENABELED: 'true' means to load the driver on boot. d/oracleasm querydisk -d DSKORA1 Disk "DSKORA1" is valid ASM disk on device [253, 6]. •A 2-Node cluster with a RAC One-Node database. First, it allows exclusion of certain disks. Checking if ASM is loaded: yes. 1 Go to Storage -> Volumes, and click on the plus sign on the Volumes section. SQL> alter diskgroup data2 drop disk DISK003A force; Diskgroup altered. For example: ORACLEASM_SCANEXCLUDE=sd ORACLEASM_SCANORDER=emcpower. How to Configure LUNs for ASM Disks using WWID, DM-Multipathing, and ASMLIB on RHEL 5/OEL 5 [ID 1365511. Drop the offline disk from the disk group. 2)#oracelasm querydisk -p ASMDISK01. 1 Problem: While installing the ASM Instance with Oracle Universal Installer the ASM Disk, created with oracleasm createdisk, is not shown. 【ASM】ASMLIB 系列说明:RHEL6、RHEL7、CentOS6、CentOS7 都可以使用asmlib,只不过需要安装kmod-oracleasm包。RHEL5不需要安装kmod-oracleasm包。下载地址可直接在官网搜索:-----oracleasm常用命令asmliboracleasm日志: tail-f/var/log. @James Labocki:Configuring Oracle ASMLib on Multipath. To get a solution and see the information that we’re looking for, you must go to the /dev/oracleasm/disks directory: # cd /dev/oracleasm/disks # pwd /dev/oracleasm/disks. Tried to create disk using # oracleasm createdisk DATA1 /dev/xvdc11 oracleasm module not loaded or /dev/oracleasm not mounted. You can however force to re-use the disk by: Drop the offline disk from the disk group. [[email protected] mapper]# multipath -ll mpathe [[email protected] mapper]# oracleasm querydisk -d FLASH01. Applies to: Oracle Database - Enterprise Edition - Version 11. d/oracleasm querydisk /dev/sdh Checking if device “/dev/sdh” is an Oracle ASM disk [FAILED] Existing disks can be listed and queried:. [[email protected] ~]# oracleasm deletedisk DISK00 Removing ASM disk "DISK00": [ OK ] 5. If I understand correctly then all you need to do is connect the device to your computer and open iTunes. The oracleasm querydisk command allows you to view the physical nature of the device label, in this case ORA11DATA006. The following example shows creating an ASMLib device on a partition of a Linux Multipath device. actual ASM library, and the oracleasm support package, which provides the utilities to configure and enable the ASM driver. d/oracleasm listdisks Then on Node 2: $ sudo /etc/init. F How to Complete Preinstallation Tasks Manually. Network Idle Timeout: The time in milliseconds before a network connection is considered dead. d/oracleasm querydisk -d data1 and # /etc/init. entre servidor e a controladora , utilizando o multipath teríamos uma redundância de canal [[email protected] ~]# oracleasm querydisk -p DATA2. Example: [[email protected] asm_tar]# /etc/init. The machine has two connections, or paths, to that external storage. Determine if a disk belongs to Oracle ASMlib. Before download the rpms, check your kernel version and processor (32 bit or 64 bit): oracleasm- (kernel) --- must be same version with the kernel. Excluding devices and explicitly setting the scanorder can be useful for multipath devices. 2 Create a volume for the Oracle Home. To verify the disk created, we issue this command: usr/sbin/oracleasm querydisk /dev/sdb1. You then run the oracleasm tool to configure, initialize the service. Here, the system administrator has been more specific. Once again, Oracle will use the multipath disk. Check the properties of the ASM disk group. d/oracleasm start Initializing the Oracle ASMLib driver: [ OK ] Scanning the system for Oracle ASMLib disks: [ OK ] Now as we have configured and started the oracleasm, we can proceed with making the disks as ASM disk. [email protected]:~> srvctl stop database -d orcl. So, you now know that DATA0 is stored on /dev/sdd1, the first partition of /dev/sdd. d/oracleasm querydisk -d /dev/emcpowera1 Device "/dev/emcpowera1" is marked an ASM disk with the label "ARC1 "# /etc/init. ORA-15063 as "oracleasm querydisk" fails: Disk "ASMDATA01" defines an unmarked device (Doc ID 2153949. This will directly give the linux partition. Just install it from the DVD with the command RPM or with the command YUM after the configuration of the repository. ㅁ [racdb1, racdb2 RHEL] Multipath Reload # service multipathdreload. If the same disk appears under multiple paths, then it causes errors. It checks if the disk has been marked for ASMLib. As RDBMS and GI/ASM user: 1) Shutdown all Databases (as RDBMS user) utilizing the ASM instance(s) Identify the database need to be shutdown that is clients of ASM instance. The ORACLEASM_SCANORDER variable specifies disks to be scanned first. d/oracleasm querydisk -d /dev/sdc1. Disk "VOL4" is a valid ASM disk on device [8, 1]. 为了查询,使用下面的oracleasm querydisk命令。 ipv6 339024 660 ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6 dm_round_robin 2531 34 dm_multipath 18562 18 dm_round_robin uinput 8917 0 sg 30968 0 serio_raw 5631 0 iTCO_wdt 6353 0 iTCO_vendor_support 3030 1 iTCO_wdt coretemp 6997 0 acpi_cpufreq 13345 0 freq_table 6987 2 cpufreq. In this blog post I will not show how to configure and setup GoldenGate replication. 32-xx) using HP P4000 as our iSCSI shared storage solution. During labelling using the oracleasm createdisk , since we use the LUN name I always thought that asmlib dealt only with the names of devices (Powerpath name in this case). If you are a member of the Unbreakable Linux Network, then you can install the ASMLIB rpms by subscribing to the Oracle Software for Enterprise Linux channel, and using up2date to retrieve the most current package for your system. d/oracleasm script with the 'configure' option. 2)の新機能Oracle ClusterwareおよびOracle ASM 11g /usr/sbin/oracleasm querydisk {DISKNAME ¦ devicename} listdisks . This solution answers my question of "How do I know what device ASMlib has actually found and that it is using the multipath device?". The ASMLIB configuration file . Step 2: Running ‘kfed’ Oracle utility. Configure ASMLib for multipath (do the following operations for every node) [[email protected] ~]# /etc/init. d/oracleasm querydisk -d DSKORA1 Disk "DSKORA1" is valid ASM disk on device [253, 6] Good Luck ! Leave a comment. [[email protected] asm_tar]# /etc/init. d/oracleasm querydisk DISK1 Disk "DISK1" is a valid ASM disk on device [253, 6] SHUTDOWN the server Exchange the LUN number with another LUN for an different scanning sequence. this sample) from Oracle Linux server. I found however, it was done for RHEL/OEL 6 and older, and I’m in OEL7. add extract testext, tranlog, threads 2, begin now. Review this information to administer the Oracle Automatic Storage Management library driver and disks. If it is successfully loaded, output similar # /etc/init. #oracleasm listdisks [[email protected] ~]# oracleasm listdisks ACFS01 CRS01 CRS02 CRS03 DBDATA01 see also ASM disk label vs Physical device It's only fair to share…emailLinkedinFacebook. I discovered that when this option is omitted, such as in the. d/oracleasm configure #/etc/init. $ ls -la /etc/sysconfig/oracleasm lrwxrwxrwx. Running Systems » Blog Archive » Oracle ASM and EMC PowerPath. Step 6: #create Partition or relabeled it. Checking mpath info of a ASM disk in 11g & adding new asm disks using oracleasm ===== oracleasm listdisks. As the ASM disks were not showing up under the ASM directory '/dev/oracleasm/disks', we were not able to run the 'kfed. [email protected]:~> srvctl stop listener. And list the disk to search for its block device: # ls -lha DISK01 brw-rw----. multipath -ll |grep 240d8557523e8fbc44f0cd000 ls –la /dev/mapper/ find new device using log time oracleasm querydisk /dev/mapper/mpathu. Recently I was tasked to install Oracle RAC 11. First, Modify scan ip's in DNS. 使用oracleasm querydisk可以查询到device的major和minor,从而对应. 注意区别(ASM磁盘与LUN映射出来的multipath路径盘)授予权限区别:下面是创建成功的权限分配情况 Usage: oracleasm [--exec-path=] [ ] oracleasm --exec-path querydisk Determine if a disk belongs to Oracle ASMlib createdisk Allocate a device for Oracle ASMLib use. 1 grid oinstall 8, 17 Mar 2 08. Configuring Disk Scan Ordering to Select Multipath Disks. A backup copy of ASM disk header is always saved inside the disk. Step 8: need to add newly created partion over oracle asm. In a multipath disk configuration, the same disk can appear three times: the initial path to the disk, the second path to the disk, and the multipath disk access point. Telefón: 0905 644 485 | dell laptop with number pad. Configure ASMLIB to use multipath (from each node on RAC environments): By any path the ASMLIB can found the disks, but, the best path is using the multipath : Modify in /etc/sysconfig/oracleasm : ORACLEASM_SCANORDER="dm" ORACLEASM_SCANEXCLUDE="sd". You can use script in Example 2 to see the mapping with size. I'm not really sure if this is the best way of mapping OS device -> ASM disk: [[email protected] ~]$ sudo /etc/init. d/oracleasm querydisk -d DATA01 Disk "DATA01" is a valid ASM disk on device [65,33] Here, it is showing DATA01 disk on 65, 33 device. 3 and later Information in this document applies to any platform. Check which asm disk maps to which mpath devices partitions. Solution: Define the Scanorder in /etc/sysconfig/oracleasm config file. rpm #this is not in the dvd, you have to download it rpm -Uvh oracleasmlib-l.