First of all i will explain you the all information about structure. Note that the problem happens due a bug in oracle database layer code, not because of an exadata design limitation. After all, exadata is just an oracle database which happens to be able to intelligently communicate with its storage to avoid unnecessarily moving too much data around. Between 2 dbcompute nodes lies the cisco switch which is surrounded by. Oracle exadata interview questions and answers exadata. Expect quarterly bundle patches for the storage servers and the compute nodes. How to patch an exadata part 1 official pythian blog. Although patches can serve other functions such as adding new features to products, patches are used most often to mitigate software vulnerabilities. Get serious about your next job its time to be well prepared.
Exadata was originally designed for the warehouse environment. Organizations can use cisco nxos software to deploy the switches in standard cisco nexus switch environments nxos mode. Tips, scripts and unknown issues for oracle, exadata and more. Cisco provides two modes of operation for cisco nexus 9000 series switches. Connection from data center to cisco switch issue on exadata. This is actually called patching exadata we did this work in 2 iterations.
The cisco ethernet switch should not be connected until the running configuration has been verified, and any necessary changes have been made by. Patches correct security and functionality problems in software and firmware. Your use of the information in these publications or linked material is at your own risk. As we know about oracle exadata, the exadata rack has a different components, like cisco switch, kvm, power distribuion unit, etc and we only are responsible for patching the database servers usually referenced as compute nodes, storage servers usually referenced as cell nodes and the infiniband switches. For more details, refer to my oracle support note titled database machine and exadata storage server 11g release 2 11. Scope this known issues document will be of interest to database administrators who are responsible for bundle patching for oracle database grid infrastructure ojvm release. Oracle database cloud exadata service version na and later.
Latebreaking issues mos alerts for hot topics see how to mos 793436. Locations of important log files in oracle exadata. This topic describes the procedures to patch bare metal and virtual machine db systems and database homes by using the console, the api, or the database cli dbcli integration cloud. An exadata storage server patches require database server patch to support. Performance issue after switching to exadata from oracle 10. In this article i will demonstrate the steps to collect ilom snapshot data for an infiniband switch. Dec 02, 2011 first, the oracle exadata patch has 3 different components that should be patched. This post describes some of the most recent issues i have faced while patching an oracle database machine exadata. The other components infiniband switches, cisco ethernet. Every quarter a full bundle is released containing the latest patches for all exadata components. Issues with oedacli exadata x8m switch roce 9336 switches rules for 12.
Its not related to lacp timeout tac already verified it. I will be looking to delve deeper into exadata patching and explore this. All exadata systems contain a management network running on at least baset also known as ieee 802. Oracle exadata x62 installation and configuration manual. Cisco patches serious sdwan software security holes the cisco sdwan security problems were part of 23 security advisories cisco announced on jan. Jan 27, 2020 schedule patch events for their exadata zdlra engineered system in advance for upcoming quarters. Feb 05, 2020 in an emailed statement, a cisco spokesperson said. Yesterday i have tried to apply latest patch for exadata. Both the new critical issues can be patched by either applying the oneoff patch 21251493 or by upgrading the exadata storage server software to 12.
You may indeed have to patch the exadata cisco switch to update its. Improve it operations for your database platforms cisco. When we patch the os system, all components get upgraded including the firmware version. Troubleshooting the exadata database machine schematic file. Cisco confirms 5 serious security threats to tens of. Exadata database machine and exadata storage server. The other components infiniband switches, cisco ethernet switch, pdus are less frequently patched and not on the picture therefore. Managing oracle exadata with oracle enterprise manager 12c porus homi havewala senior manager, enterprise technology. Troubleshooting cisco catalyst switches to nic compatibility issues pdf 183 kb 19sep2014 configure mismatch consumed power inline value with snmpwalk and switch cli configuring secure shell on routers and switches running cisco ios. Exadata patching you now have several components the firmware of the nodes operating system infiniband switches rdbms and grid infrastructure binaries mos document 888828. This topic explains how to use the dbaascli utility to perform patching operations for oracle grid infrastructure and oracle database on an exadata db system. Jul 20, 2015 over the weekend, oracle announced two new critical issues for exadata storage server ex23 and ex24, both impacting version 12.
Oct 25, 20 the latest quarterly full stack patch was released on october 17th for exadata. Patch management overview, challenges, and recommendations. Cisco patches serious sdwan software security holes. Nov 29, 2010 oracle exadata issues and challenges 1. Starting with exadata x4 and higher, you can now collect snapshot for. Nae can precisely indicate problems in the network, identify. I would like to share some of my tipsnotes about patching oracle exadata. Configuring the monitoring the cell server thresholds and troubleshooting the cell server, infiniband, cisco switch, interconnect issues implemented server and component backups for exadata using rman backup.
It is better to have a basic understanding of what is an exadata before jumping to this patch procedure. All servers database and storage have a connection to this network, along with each servers integrated lights out management ilom card. Configure mismatch consumed power inline value with snmpwalk and switch cli. Database server check system is not exposed to exadata critical issue ex50 all database servers view. On our exadata cloud service system running 18c gi and db, we have been running into issues with u02 filesystem filling up. I am looking at changing default passwords on the cisco 9336 private switches on an x8m.
Review the exachk report for hardwaresoftware issues and resolve them. Patching an exadata is hardly what it used to be, but even when we have some issues, most of the errors described here were fixed by analyzing the log files generated by patchmgr and dbnodeupdate. This fact alone takes cdpwn out of the realm of technical problems. Master on oracle exadata database machine full rack and oracle exadata database machine half rack configuring the cisco ethernet switch 5. Oracle support has a nice document about the process to replace cisco switch, how to replace a cisco ethernet switch in an engineered systems rack doc id. How to replace old exadata storage cells with the new x72 storage cells, without downtime.
Enterprise manager oracle exadata database machine getting started guide. The cisco switch aka the ethernet switch is used to connect each exadata component for an administrative purpose. Oracle exadata database machine half racks with sun fire x4170 oracle database servers. In this case, the cisco ethernet switch on exadata will be replaced. May 29, 2017 starting with exadata x4 and higher, you can now collect snapshot for infiniband switch using web browser interface. The best streaming tv services you get away from everybody else. Exadata preparing for the quarterly patch part one blogger. Later it was enhanced for use in the oltp databases as well. This patch contains all of the latest recommended patches for the exadata database machine. Issues and challenges featuring freelyavailable information. The recommended patch frequency is every three months to be honest i only patch twice a year but before patching track if there are issues for a period of 6 to 8 weeks before applying to prod systems. This was primarily imposed and generated by one component rman. On oracle exadata database machine x72 compute nodes you might experience issues when connecting to 10gbe switches.
Exadata patching infiniband switch exadata certification. The oracle exadata channel to subscribe to depends on the oracle exadata software release you want to update to. But in case of failed os patching, when we rescue the node, the os components are downgraded but not the firmware. Connection from data center to cisco switch issue on exadata x7.
Administration tasks and utilities cell server process, 165 cisco. Maintaining other components of oracle exadata racks. With cisco devices everywhere from the trading floor to the boardroom, this is one security alert you cant afford to ignore. Oct 28, 20 patch management overview, challenges, and recommendations bernard mack employees of every organization use a variety of computing devices such as desktops, servers, laptops, security appliances, and mobile devices to increase productivity in this everchanging world of information technology. Ethernet switch 2 x 16port switch 1 x 48port cisco catalyst 4948 1 x 48port cisco catalyst 4948 1 x 48port cisco catalyst 4948. Mar 12, 2018 exadata patching upgrading exadata software versions image upgrade recently completed an upgrade work in a critical exadata environment. It may happen that when trying to reach the exadata machine using the management network, the data center switch that connects to the exadata cisco switch get a connection rejected error.
Apr 18, 2014 exadata targets these problems with features such as dedicated storage and infiniband interconnects. Exadata patching infiniband switch exadata certification get trusted exadata certification exam question bank for oracle exadata administrator and implementation exam. It has a table in it including all the workaround fixes about. The cisco switch version that i use for demonstrating this upgrade is catalyst 4948e, which is the ethernet switch delivered with exadata x32 machines. Mar 28, 2017 some information you need to know before starting to patch your exadata. In many cases we have found problems on the exacheck that needed to be corrected before we could apply the patch. Storage server check system is exposed to exadata critical issue ex51 all storage servers view.
In exadata x7, we see cisco nexus switches in exadata environments, these cisco switches are used for systems management net interfaces access only. When we applied the firmware update from a remote location we realized there was a problem when the switch did not come online after a. Advanced reboot capabilities include hot and cold patching. Latest exadata quarterly full stack patch oracle enterprise. The latest quarterly full stack patch was released on october 17th for exadata. Schedule patch events for their exadata zdlra engineered system in advance for upcoming quarters. Apr 17, 2020 these known issues are also in addition to the issues listed for the 12. You can find more information about the cisco switch in the official documentation.
Oracle exadata recipes takes an examplebased, problemsolution approach in showing how to size, install, configure, manage, monitor, optimize, and migrate oracle database workloads on and to the oracle exadata database selection from oracle exadata recipes. Managing oracle exadata with oracle enterprise manager 12c. I must say that i believe the concept of offloading sql processing to the storage layer is a game changer and i wouldnt be at all surprised to see this as a standard feature a few years from now. Solarwinds database performance analyzer dpa for oracle provides finegrained visibility into oracle exadata performance bottlenecks, giving you. While many exadata environments have asr phone home setup for their exadata machines, many. First, the oracle exadata patch has 3 different components that should be patched. Cisco switch the addon is a bundle created using all the plugins. This was known issue and we able to reckoned using below doc id. When working with oracle support on a infiniband switch hardware service request, oracle support request you to upload ilom snapshot to properly assess the hardware failure.
Contain standard oracle patches and exadataspecific patches. Vikas srivastava oracle exadata dma oraclecloud solution. Based on our experience as an interviewer and interviewee, here we have consolidated some of the generic exadata. I publish this article to show that systematic exadata performance troubleshooting techniques arent fundamentally different from existing non exadata techniques, especially the starting point of troubleshooting. The platform was an exadata x62 quarter rack and our job was to upgrade the image versions of inifiniband switches, cell nodes and database nodes. The major logfile of patch application output you will find in the db node from where you are patching in the location. Allows administrators to issue one opatch command to patch all oracle homes on. You may think that this error is a permission issue on the tftp server. Grid infrastructure and database patch bundles for exadata are produced until the patching end date for a given patch set, as described in note 742060. Exadata x48, exadata x32, exadata x58, exadata x38, exadata x42l, exadata x22, exadata x68, exadata x42, exadata x28. The utility requires root or sudo administration privileges. Issues and workarounds for exadata patching jan2019. Maintaining other components of oracle exadata racks 4.
Cisco security advisories and other cisco security content are provided on an as is basis and do not imply any kind of guarantee or warranty. Connection from data center to cisco switch issue on. Troubleshooting exadata v2 smart scan performance tech. General exadata patching question oracle community. Recently completed an upgrade work in a critical exadata environment. May 21, 2018 the cisco switch version that i use for demonstrating this upgrade is catalyst 4948e, which is the ethernet switch delivered with exadata x32 machines.
Exadata critical issues it was like that when i got here. Exadata preparing for the quarterly patch part one if you are using exadata you know its coming. If all goes as scheduled, the next exadata qfsdp quarterly full stack download patch will be out later this month. Well ive been holed up playing with an exadata v2 machine for the past several weeks.
A beginners guide to exadata patching for oracle dbas udemy. Although exadata is oracles most popular and mature engineered system, some customers implementing the database machine are making mistakes that. Some information you need to know before starting to patch your exadata. When security issues arise, we handle them openly and swiftly, so our customers understand. Cisco small formfactor pluggable sfp transceiver modules maintenance and troubleshooting pdf 345 kb 23sep2014. Troubleshooting cisco catalyst switches to nic compatibility issues pdf 183 kb 19sep2014. Here are the concepts of exadata patching to make exadata dba life easy patching database is a common task for a remote dba, but when we talk about exadata patching it involves lot of complications. Oracle database and rac on cisco ucs and cisco hyperflex solution brief. Oracle exadata x62 installation and configuration manual pdf. Root cause analysis of hardware problems topology view of all exadata components by uses used by.
Oracle first patched the issue on april 26, outside of their normal patch cycle, and assigned it cve20192725. Organizations can also deploy the infrastructure that is ready to support the cisco application centric. Applied bundle patch to oracle exadata database machine database, storage cells, infiniband switch patching. Exadata how to install a brand new exadata x2 to x7. Cisco catalyst 2960 series switches troubleshooting. Feb 11, 2014 however, certain enterprises might have their own standards to use different switch as part of enterprise standard. These issues include links not being detected or being unable to connect to the gateway.
The storage server patch is responsible for keeping our cell nodes always uptodate, fixing possibles problems and this patch includes different component patches, like kernel patches, firmware, operation system, etc for the storage server. Here are the concepts of exadata patching to make exadata dba. Chapter 11 upgrading and patching exadata and zfs storage appliance 293 planning an exadata and zfs upgrade 294. Does anyone know why exadata hosts vpclacp becomes i when one of leaf switches gets recycled.
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