Shared LUN for RAC: VirtualBox or Openfiler?

Similar Questions

• Storage FireWire for RAC

  DB version: 11.2.0.2
  Operating system: Solaris 5.10
  
  We plan to implement a (Development) db CARS with a Firewire 800 device as our shared storage. We believe buying a 2 port Firewire storage device mentioned in the below URL, as well as 2 cards PCI firewire for two of our machines.
  
  http://www.LaCie.com/Asia/products/product.htm?ID=10330
  
  I read in other posts OTN RAC with firewire storage is only good for demonstration purposes. This means that it is not good for the DBs development at least?

  Hello

  That said, that it is not supported for production.
  It may be good enough for development. Just keep in mind that an error condition are harder to reproduce.

  On the other hand, software machine virtual (virtual box/Oracle VM) will also seek to build a CAR on the same machine without needing a storage "externally/shared.
  For development, on 1 Server Setup is pretty good too... (Just don't use it in production, because he abandoned the idea of HA having 1 Server ;)

  Concerning
  Sebastian

• ASM vs RAID for RAC 11 GR 2 environment

  Hello!
  We plan to install 11 GR 2 CARS with two-node Cluster on LINUX in our environment.
  Operating system: OEL 5.4
  In our material, we got two dell servers with 16 GB of RAM on each side more on SAN we have only 8 (173 GB) disk left for RAC Cluster configuration. I create the database (LIVE/UAT) on this Cluster Setup. Currently our Production DB dimensions are 6 GB and I assumed that for 5 years, that he's not going beyond 100 GB coming and I keep size UAT 15 GB difficulty without modification. So, how do get you the best performance from ASM using my all resources.
  
  My question:
  (1) who is the best solution for the ASM and RAID in our storage environment?
  (2) disc how do I create a group for the two databases (UAT/LIVE)?
  (3) records how much should I allocate in each group of disks with RAID Option or if all this suggests for LUNS, how to create LUNS on the disk I got?
  (4) I know oracle recommends two DATA DISK group & FRA is there any suggestion of CRS, REDO and TEMP FILE?
  Thank you for your Assintance.
  
  Nadège.

  My first question was: which RAID Option (0,1,5,0+1) I choose with ASM?

  Well, it does not matter for the DSO. At least in your configuration with 8 disks.
  RAID0is not an option - forget about it. RAID1 (or combined with more than two discs and a RAID0 superimposed making it a RAID 1 + 0) could be an option for the writing intensive databases. RAID5 is more for intensive reading due the RAID5 write hole but offers a capacity of 'more' at the expense of slower writing speed.

  I have recommended to the stick with RAID1 (mirroring two disks) and exporting to ASM rather than create a big RAID1 + 0 on all of your discs and exporting as a big Chuck of ASM storage for the management of. If you want to add storage lateron your perfect according to the recommendations of the Oracles have LUNS of equal size in ASM with two mirrored drives. If you create it large RAID 1 + 0 and lateron add two drives you have a 600 GB size logic unit number and a 170 GB size... it's a big shift.

  But if I create TWO group of disk then, is it advisable to provide two data bases (UAT/LIVE). ?

  Normally, there is a separation between UAT and P on the storage and the server level. In your case, it might be 'ok' to do everything in the same disk group. It depends especially of what database puts the load on the disk subsystem.

  --
  Ronny Egner
  My Blog: http://blog.ronnyegner-consulting.de

• File sharing Mac for iphone via Airdrop does not

  File sharing Mac for iphone via Airdrop does not. Please suggest me.
  In the finder of mac and iPhone, I clicked on "Let me o find out for everybody". IPhone is still not release shows.
  IPhone is the model of 5 s (10 iOS) and mac MAc mini end of 2014 (OS X EL Capitan - 10.11.4).)

  Cross the writeup here.  Make sure that both devices have Wi - Fi and Bluetooth connection 'On '.

  Use AirDrop to send the contents of your Mac - Apple Support

• Create a shared library for NI Linux real-time

  I need to build a shared library for NI Linux time real (.so) which corresponds to a shared library, which I create on Windows (.dll).

  I have the C code that needs to call a function of VI. On Windows, I have a project that allows me to create and build a "Shared Library (DLL)", but I don't see the same option available in a real-time project targeting the cRIO-9068. Am I missing something, or is it not still possible?

  Hi Wayne,

  Using LabVIEW VIs in other programming only possible through dll environments. In LabVIEW there are options for creating libraries and source, but these distributions will be accessible in LabVIEW and not in other programming environments.

  Concerning

• How to create the shared library for linux real-time target in labVIEW Windows?

  I use myRIO running linux in real time. In my project, I need to pack some C code, so I tried the node library function call.

  I know that I should use the tools compile cross - compile linux on Eclipse to compile c code in linux .so library. But the problem is that call library function node does not recognize the .so file because my labVIEW runs on a Windows PC.

  What should I do to fix and how to combine C code with labVIEW during programming for devices shipped as myRIO?

  Basically, you must also create a Windows DLL that exports the same functions. These functions can be empty stubs if you do not want to run the code correctly on Windows, otherwise you will need to consider how to implement the equivalent functionality on the Windows API.

  Then you can write in your node library call as the name of the library ". "*" and the name of the shared library Windows ".dll" while the Linux version is called "name of your library > .so". LabVIEW will replace the * after the comma in the name of library with everything that is the preferred extension shared library for the platform it is running on and therefore load the right shared library.

  Alternatively you can wrap call all the nodes of the library in a structure that contains the node library in the case of Linux RT and all what you want to run on other platforms in the case of default or a case of specific platform, call the conditional compilation.

• How can I reset my sharing permissions for default cause I don't know what has been changed, now I can not install anything

  How can I reset my sharing permissions for default cause I don't know what has changed now I can't install anything, I think it has been somwhere in users

  I don't know which

  Try to fix it with system restore.
  What was this "program"? It came from a reliable source?  It would be wise to carefully check for malware also.

• lsnrctl reload for RAC

  Hi all

  I had a problem when using db CARS. I tried to get the status of the listener after I reload it. And I get the error

  [oracle@aie-45-215 ~] $ lsnrctl reload LISTENER

  LSNRCTL for Linux: Version 11.2.0.4.0 - Production June 1, 2015 19:33:57

  Copyright (c) 1991, 2013, Oracle.  All rights reserved.

  Connection to (ADDRESS = (PROTOCOL = tcp)(HOST=) (PORT = 1521))

  The command completed successfully

  [oracle@aie-45-215 ~] $ lsnrctl status

  LSNRCTL for Linux: Version 11.2.0.4.0 - Production June 1, 2015 19:29:16

  Copyright (c) 1991, 2013, Oracle.  All rights reserved.

  Connection to (ADDRESS = (PROTOCOL = tcp)(HOST=) (PORT = 1521))

  AMT-12541: TNS:no listener

  AMT-12560: TNS:protocol adapter error

  AMT-00511: no listener

  Linux error: 111: connection refused

  If I stop and restart the listener, then it works again.

  [oracle@aie-45-215 ~] srvctl stop listener $

  [oracle@aie-45-215 ~] $ srvctl start listener

  [oracle@aie-45-215 ~] $ lsnrctl status

  LSNRCTL for Linux: Version 11.2.0.4.0 - Production June 1, 2015 19:34:39

  Copyright (c) 1991, 2013, Oracle.  All rights reserved.

  Connection to (ADDRESS = (PROTOCOL = tcp)(HOST=) (PORT = 1521))

  STATUS of the LISTENER

  ------------------------

  Alias LISTENER

  Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production

  Beginning June 1, 2015 19:34:33

  Uptime 0 days 0 h 0 min 6 sec

  Draw level off

  Security ON: OS Local Authentication

  SNMP OFF

  Parameter Listener of the /u01/app/11.2.0/grid/network/admin/listener.ora file

  The listener log file /U01/app/Oracle/diag/tnslsnr/AIE-45-215/listener/alert/log.XML

  Summary of endpoints listening...

  (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = LISTENER)))

  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp)(HOST=10.80.45.215) (PORT = 1521)))

  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp)(HOST=10.80.45.225) (PORT = 1521)))

  Summary of services...

  "Rone" service has 1 instance (s).

  'Rone1' instance, State LOAN, has 1 operation for this service...

  Service 'roneXDB' has 1 instance (s).

  'Rone1' instance, State LOAN, has 1 operation for this service...

  The command completed successfully

  Here's what the listener.ora

  [oracle@aie-45-215 ~] $ cat /u01/app/11.2.0/grid/network/admin/listener.ora

  Listener = (Description = (ADDRESS_LIST = (Address = (Protocol = IPC) (Key = Listener))) # line added by Agent

  LISTENER_SCAN1 = (Description = (ADDRESS_LIST = (Address = (Protocol = IPC) (Key = LISTENER_SCAN1))) # line added by Agent

  ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1 = ON # line added by Agent

  ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER = ON # line added by Agent

  So "lsnrctl reload" should not used for RAC environment or I used by mistake?

  Liz

  Node VIP and public IP address of the node, the two IP will be exist for the listener node. Check the status of the listener without changing anything. You will see the listener with both the PPE

  $GRID_HOME/bin/lsnrctl State AUDITOR

• Sharing LUNS between VMware Clusters

  We currently have a 3.5 divisΘe in farms host.

  Farms, they are further broken into clusters

  Y at - it problems with sharing LUNS between clusters in the same farm.

  I don't think that it is a good idea, but I can't seem to find any documentation indicating one or the other.

  Of course you must have shared LUNs within the cluster.  But it seems that you ask if you must share LUNS between clusters.  Yes at least one logical unit number.  This way if you need to move virtual machines between clusters, you can.  And of course you mentioned your lun model.

  Matthew

  Kaizen!

• Global LUN for all snapshots

  Hello

  in our environment, we have multiple LUNS to the virtual machines. The problem is that I have to leave space on each LUN for snapshots created by VCB. Is it possible to have a central LUN for all snapshots, it means that the deltas are not stored in the vmx directory but in another for the all machines?

  Thank you!

  See you soon,.

  Malta

  Malta.

  To have the snapshot created in one location other then the folder where is the vmx is adding "workingDir" parameter in the vmx file.

  workingDir = "/ vmfs/volumes /...» »

  http://communities.VMware.com/message/904258#904258

  Personally, I like to keep all my files together in the same directory. You must also ask yourself what process you run which causes the creation of these great snaps.

• Upgradation OS for RAC

  Hi guys... How is everything...
  
  I have the node CCR on Windows2003R2 Itaniam. I need to know is there any procedure for upgradation OS for RAC... I mean I'm going to the bottom of the Cluster & when the OS database places a gradation.

  Hello

  you need not stop the entire base.
  Upgrades of the OS can be in upgradeable mode (so one node after another), you must stop the instance and the clusterstack on the node, you perform the upgrade.

  Policies to support Oracle to launch of the CARS with different versions of an operating system within a period of 24 hours.
  In other words: after completing the upgrade of the first node you have 24 hours to what your other nodes must be at the same level of the new OS.

  Concerning

  Sebastian

• Automation of shared review for Reader using the Acrobat 9 software development kit

  I am new to the Acrobat SDK kit, but also writing plug-ins.

  However, I was instructed to implement a 'shared check' in Reader for collaborative proofing.  I understand how to do this using the "Send for shared review" Wizard in Acrobat, but I need to automate this process.  PDF files which will be a protection at a meeting of "Shared review" using player emerged a Hotfolder process, so there is no physical end user to run the Acrobat 9 "Send for shared review" for each PDF.  I need to automate this process.

  I was told that the SDK would allow this, but at the same time, I read a few posts claiming this can be done in the SDK and LiveCycle is required.

  Can someone confirm that the SDK can activate a PDF of "shared control"?  If so, how this is done?

  If it cannot be done, is the only option for LiveCycle or can a macro Acrobat written to simulate the Wizard "Send for shared review"?

  Thanks in advance.

  There is no automation facilities to "Send for shared review" in the Acrobat SDK kit - so this isn't an option.

  I don't think that the latest version of LiveCycle can do it either...

• Storage shared by NFS for RAC

  Hello

  I intend to set up a node 2 CARS. However, I have only the internal drive to use and no SIN /SAN. So I intend to share some of the ability of alternatives I have on the internal nodes 1 & 2 discs and make shared storage using NFS. However I have a few questions about it.

  Q1. Since the NFS mount will indeed be file system media, this means that for the storage for the Cluster option and the RAC database that I can only use option 'shared file system' and not 'ASM '?

  I think what is confusing me is that I think that I read that the ASM disks can be complete physical disks, partitions of a disk, SAN LUNS or NFS?

  If this is the case then it suggests that I can create an ASM disk based on a NFS mount?

  I don't know how to do this - any help / advice would be appreciated because ideally, I would have preferred to create candidate ASM disks based on the shared NFS disk

  Thank you

  Jim

  You can use NFS as your clustered file system, but if you want to use ASM we top of the page so it no problem: dd to create large files on the file system shared, for example,

  If DD \u003d/dev/zero of = / mnt/nfs/asmdisk1 bs = 1048576 count = 2048

  and set your asm_diskstring parameter to point to them (or specify them as devices to be used at installation time). It is very easy to set up and is fully supported by Oracle of the uncle. I recorded a few demos that include this a year or two before, Oracle ASM free tutorial

  --

  John Watson

  Oracle Certified Master s/n

• 'Convert' part in LUN for iSCSI access

  Hi all

  I used my RN2120 as a SMB share for my exclusive Microserver HP for the content to Plex. I have now come to install a double extra NIC in my server and I would like to use the ReadyNAS as iSCSI storage.

  What I can't work, is to "convert" my SMB on a LUN sharing for access via iSCSI.

  Someone at - it an idea? Or should I return my data (~ 5TB) on my server, delete the share, create the LUN and bring back the data? #fingerscrosseditsnotthissolution

  Thank you very much

  Carl...

  There is for example a NTFS file system THAT put on the iSCSI LUN

  You will need to copy the data to your PC, delete off the coast of the NAS, create the iSCSI target and copy the data back.

  If all the data you have, then after copying data off isn't 5 TB of data you can update the firmware, verify that the update of the firmware successfully, do a factory reset, create the iSCSI target, install it on your PC using the initiator and restore your backup data.

• Can I use file of udev rules for RAC on Oracle Enterprise Linux 6 11.2.0.3?

  Version of the grid: 11.2.0.3
  Platfomrm: The last Oracle Enterprise Linux 6 (Unbreakable Enterprise Kernel)
  
  
  Yes guys Oracle sales have convinced our Manager to go OEL of AIX.
  We plan to install RAC on Oracle Enterprise Linux 6 (UEK) 11.2.0.3.
  
  I read this thread on the asmlib and udev rules file.
  List of rules for CAR 10.2 udev
  
  As a benefit to ASMLib, periera Levi said (quotes)
  '+ A good async IO interface to the database, all the I/o interface is based on a model of performance + ASYNC'
  
  Oracle is not out for 6 OEL or RHEL 6 AsmLib. I think that they will not release asmlib more.
  
  So, we will use only the udev rules file. Without ASMLib, we will have an ASYNCHRONOUS i/o or other storage related issues?
  
  Someone at - it successfully installed 11.2.0.3 RAC OEL 6 with udev rules file?

  I use +/etc/udev/rules.d/40-multipath.rules+ udev file to configure the permissions of device of multiple devices on path to e/s for use by o/s user grid.

  It is as follows:

  # modded for setting mpath device permissions
  
  SUBSYSTEM!="block", GOTO="end_mpath"
  
  KERNEL!="dm-[0-9]*", GOTO="end_mpath"
  
  PROGRAM!="/sbin/mpath_wait %M %m", GOTO="end_mpath"
  
  ACTION=="add", RUN+="/sbin/dmsetup ls --target multipath --exec '/sbin/kpartx -a -p p' -j %M -m %m"
  
  # goto labels added
  PROGRAM=="/sbin/dmsetup ls --target multipath --exec /bin/basename -j %M -m %m", RESULT=="?*", NAME="%k", SYMLINK="mpath/%c", GOTO="check_cluster_devs"
  PROGRAM!="/bin/bash -c '/sbin/dmsetup info -c --noheadings -j %M -m %m | /bin/grep -q .*:.*:.*:.*:.*:.*:.*:part[0-9]*-mpath-'", GOTO="check_cluster_devs"
  PROGRAM=="/sbin/dmsetup ls --target linear --exec /bin/basename -j %M -m %m", NAME="%k", RESULT=="?*", SYMLINK="mpath/%c", GOTO="check_cluster_devs"
  
  GOTO="end_mpath"
  
  # set device permissions for Grid Infrastructure
  LABEL="check_cluster_devs"
  RESULT=="*", GROUP="oinstall", MODE="660"
  RESULT=="*", OWNER="grid", GROUP="oinstall", MODE="660"
  OPTIONS="last_rule"
  
  LABEL="end_mpath"
  
  # eof
  

  I understand that it is no longer necessary that can be configured in +/etc/multipath.conf+ as follows:

  ..
  multipaths {
      multipath {
          wwid  SSCST_BIOscst1_sdb_757d30d0
          alias scst1_sdb
          mode 0660
          uid oinstall
          gid grid
        }
  .. etc.
  }
  

  However, has never work properly myself--must do something wrong that I saw a few sources Internet showing it works.

  As far as I KNOW, it is also with OL6 (as it is with OL5 and earlier versions), not a question of AsmLib or udev/MPIO. Udev is a Mapper devices used by the kernel. The decision is whether to add another layer called AsmLib. Personally, I have yet to see any convincing evidence that why should I increase the complexity of the kernel driver stack, adding AsmLib. We also had a few serious incompatibility with AsmLib issues in the past (where he with, caused compatible I/O corruption at the logical level).

  If you look at the clusters in the www.top500.org list, many of them have shared storage accessible via udev/multichemin Pentabytes and nothing else. MPIO has its roots as a driver of kernel for these groups. One of the reasons why we stopped years ago to use EMC Powerpath for our CARS that are wired to EMC San to shared storage.