I am doing a Trade Study on Automatic Storage Management vs Veritas Storage Foundation for Oracle RAC on Solaris. I am trying to get feedback from individuals on which file system is best for a high OLTP 11gR2 system. I am really concerned about how the to file systems stack-up when compared on their overall performance. Our system admin doesn't trust ASM and is a firm believer in Veritas. I am trying to be objective and find the best solution for our projected upgrade system. We are upgrading from Solaris 890s to T4-2s, 11gR2, Solaris 10 or 11, and EMC storage. I was also concerned that Oracle doesn't have the ASMLIB package for Solaris. We have other system on Linux that use ASMLIB.
My organisation is currently discussing different storage options for the database storage. Our production database is nearly 2TB and we do not want to continue with the existing NetApp storage (we use a 2 node RAC running 11.2.02 with nfs filesystem from NetApp filer).
We were looking at different options and came across Nimble Storage, they are very fast growing company aiming mid-range storage customers. The initial talks and demonstration looked very promising in terms of IO performance (they claim 40,000 - 60,000 IOPs for their CS400 series Nimble Storage array) and other options they are providing but we understand that majority of their customers are using it for VDI and other infrastructures.
They have demonstrated us using if for Oracle database with ASM storage over iSCSI LUNs. We are yet to do the POCs and benchmarking.
Has anyone come across Nimble Storage for running Oracle databases?
I have installed same days ago the 10.6 toad's Release.I want to put my sql code (packages, views, etc) under team conding in tfs2010.
I have set the tfs2010 voice in Toad: View - Toad Option - Source Control menu'.Then , in team coding toolbar, I clicked "Log On to VCS Provider" and set the right options.
In "View Coding Status" I have all the options set ok (with the green V).I go to the "Open/Launch Version Control Browser", go to my packages and if I try to "Get Latest Version" or double click on my procedures, I get the following error:
"Unable to get revision from VCS repository. Error downloading XXXX" (where XXX is the packages' name)
Some shops run Oracle RAC using "conventional" storage, like emc, netapp, etc. Some shops run Oracle RAC using JBOD, just bunch of disks, all redundancy is managed by ASM.
How would you distinct these two approaches? JBOD approach sounds cheaper, so why serious enterprises are still using traditional conventional storage, like netapp and emc?
I am new to oracle which command do I use to set the file storage in oracle? I learnt the we have the option of specifying the storage pattern as per our queries.
Oracle 9i instalation problems in Windows Storage Server 2003.
I got the error "ORA-12546- TNS:Permission denied" when trying to install ORacle 9i in Windows Storage Server 2003. This error occurs at the time of Creating database.
I cannot start ASM on my Oracle Database Appliance.
crsctl status resource -t says: ora.asm ONLINE ONLINE node1 Started ONLINE ONLINE node2 Started
however, if I try to access the ASMCMD it says: [grid@node1 ~]$ asmcmd Connected to an idle instance. ASMCMD> startup ORA-00304: requested INSTANCE_NUMBER is busy Connected to an idle instance.
I am using 11.2.0.1.0 on RHEL 5.4ASM is properly working on my machine. database is running from ASM. I want to configure additional oracleasm devices.command fails saying:
$ oracleasm createdisk ASMDISK08 /dev/xvd8 Writing disk header: done Instantiating disk: failed Clearing disk header: done
I am creating asm diskgroup on loopback devicesHere are the configured loopback devices.
[root@host1 ~]# ls -l /dev/loop[1-9] brw-rw-rw- 1 oracle oinstall 7, 1 Oct 25 14:42 /dev/loop1 brw-rw-rw- 1 oracle oinstall 7, 2 Oct 25 14:42 /dev/loop2 brw-rw-rw- 1 oracle oinstall 7, 3 Oct 25 14:42 /dev/loop3 brw-rw-rw- 1 oracle oinstall 7, 4 Oct 25 14:42 /dev/loop4
, I have a few doubts in Normal,High and External redundancy levels in ASM concept. External - No failure group. No mirroring. Normal - Two Way Mirroring. One failure group. High - Three Way Mirroring. Two failure group. 1.
above mentioned 3 types in correct.2. My main question is what is the minimum number of disks needed in Disk group creation in Normal and External redundancy??
I am having 2 data centers within 1/2 km distance. And we kept each vote disk in once site. In case of site failure, the cluster needs a 3rd set. We don't have 3rd site.
Last open world, Oracle announced that oracle storage on cloud as announced. If I get the small space on the cloud, can i put my 3rd vote disk on the cloud?
i try to install oracle grid infrastructure 11r2 on cent OS 4.8 on vmware workstation 8.0.2..ASM disk is not showing ,i had also change disk discovery path to 'ORCL:*'i had already configure ASM disk using /etc/init.d/oracleasm createdisk...successfully..
we are moving datacenter from one place to another where existing datacenter has got ASM(RAC env) with HP storage which needs to be moved into target datacenter for EMC storage.basically How ASM can be disassociate from source HP storage then associate target EMC storage with very minimal down time.
what are all the ways and all step by steps required for the same.
I am an Oracle dba new to xml db,we have binary storage with 4schemas ,Right now indexing on 2gb table takes like 20GB on Path table and secondary xml index.
I want to change the table storage without disturbing the application development just the xml type column into Object relational and merged all the 4xml schemas into master schema.
Right now i want to insert the data from old tables which had different URL . How I can improve performance without having 20Gb on secondary index objects.
In one of the book (Personal Oracle Real Application Clusters: Create Oracle 10g Grid Computing) I have seen the detailed explanation to configure Oracle 10g RAC on external disk- MAXTOR A01A200.
Is it possible to configure Oracle 11g Release 2 RAC with two node using MAXTOR disk?
or Is there any other external disk available which I can use it as a shared storage?
I wanted to setup a two node 11g RAC with ASM at my home for learning purpose. I have read many documents to configure shared storage using NFS, Openfiler, VMsetup etc. Is there any hardware available (something like maxtor disk) which is not much expensive to setup a shared storage ?
I need to extract DDL's without storage parameters. if i use the export and import using indexfile or if i try to extract using the DBMS_METADATA.GET_DDL package , in both ways my output is with the storage parameters
Sequence nextval is a pseodocolumn, but where the value of nextval is stored and why before we use CURRVAL for a sequence in our session, we must first initialize the sequence with NEXTVAL?
lv_ret := WEBUTIL_FILE_TRANSFER.AS_To_Client_with_progress(lv_clnt_file, lv_srvr_file, 'Download from Application Server in progress', 'Please wait');
to download a file to my H: drive.Here lv_ret is a boolean variable.The file is not downloaded to my H drive when there is no enough space.How to capture that error?
We are maintaining a DR of our Database Server(oracle 10g R2 atop SUSE SP1 Linux) using Platespin(
[URL]......
Platespin is set to replicate(block based), incremental data(delta) every 1.5 hour from Production to DR site over a 30 Mbps dedicated fiber link.
Our maximum changes of data per day(during business hours) wont exceed 300 MB. During business hours Platespin replicates at least 1 GB at every replication cycle, while during off hours it replicates 300 to 500 MB per replication cycle. We are facing this strange issue with this box only(SLES 10 SP1 + Oracle 10g R2), we have protected MS Exchange 2007 Server based workloads without this strange issue, i.e in case of Exchange only delta replicates from Production server to DR site on Platespin.
Platespin support says us that Oracle re-indexes its database for better performance, so it is possible that re-indexing causes the blocks level changes on the storage, and since Platespin works on Block level, thats why it replicates so much(even though data is not changed that much)
here is actual words of Platespin support
<snip>
I think whenever Oracle database Indexing happens, it changes almost most of the Blocks of database and Platespin replicate all those Blocks.
As you know, Platespin checks the Date/Time attribute of every blocks before replication and if Date/Time attribute changes from last replication, it considers as changed block and replicate those blocks on Platespin Appliance. So, my suggestion is just look into the Oracle server behaviour before/after Data indexing process and do needful or do some workaround to overcome this issue.
I am having an issue with the LOBs in our Database. Our production DB is about 71G right now - if i do export/import using the DataPump - I see the data volume becomes 40G. I am sure its because of the LOBs in my Database. Our application uses lots of LOB datatype and I think the space is not being released.
The challenge is I cant do a full export/import in my Production DB as its a 24/7 system and to do export/import I need min. 5 hrs - which my business will not permit. I can I claim the unused space here. I have used Segment Advisor - but it has only given me 6G of space gain.
Is there any script I can try to use to reclaim space in the database.
1. Emp Table: Columns-> EMPID and DeptID 2. Dept Table: Columns-> DeptName and DeptID 3. Team table : Columns -> Date, EmpID1, EmpID2, DeptNo.
There is a stored procedure which runs every day, and for "EVERY" deptID that exists in the dept table, selects two employee from emp table and puts them in the team table. Now assuming that there are several thousands of departments in the dept table, the amount of data entered in Team table is tremendous every day.
If I continue to run the stored proc for 1 month, the team table will have lots of rows in it.
The real problem is when I want to retrive data for a employee(empid1 or empid2) from Team table and view the related details like date, deptno and empid1 to empid2 from emp table.
How do we optimise the data retrieval and storage for the table Team. optimize the query and data retrieval time from Team table.
assuption is that when we truncate the partition it immediatly release the allocatd storage.i have just tested the scenario , but still i can see that table size is same even after truncating the partition( which have around 25% of the data)
alter table test truncate partition t1p3 update indexes ;
OR
alter table test truncate partition t1p3 drop storage update indexes ; to see the table size:
SELECT owner, table_name, TRUNC(sum(bytes) / 1024 / 1024) Meg FROM (SELECT segment_name table_name, owner, bytes FROM dba_segments WHERE segment_type = 'TABLE' UNION ALL [code]...
