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> Cannot Remove Device That Is In Use Powermt Linux
Cannot Remove Device That Is In Use Powermt Linux
This happens when you removed devices on Clariion without cleaning on host.What I did is just give back the lun (id must be same) and remove using powerpath commands, then clean were u able to do a vgexport ? The following example has 4 I/O Paths. If you reboot the server then these entries will go away. this content
Report Abuse Like Show 0 Likes (0) 13. The issue I am having is that no matter what I do, power path see the luns as "active" and "alive". The other day we had to upgrade PowerPath from 5.1 to 5.5 and PowerPath kept complaining that devices were in use, how can they be in use if all file system but what makes PowerPath think the device is 'in use' if it is a dead path and no longer presented.
check all of those devices before you reboot. No Yes Did this article save you the trouble of contacting technical support? i.e Whether the port is enabled or not.
Re: Removing LUN from Server - PowerPath for Linux - powermt issue Brion Jan 17, 2011 1:51 PM (in response to Michele-Kf2bQ) Hello. Close Our next learning article is ready, subscribe it in your email Name(required) Email(required) Learning Request(required) Are you Looking for (required) Paid Training Free Training What is your Learning Goal for state=alive; policy=CLAROpt; – This displays that this particular LUN is valid and using the CLAROpt policy. Powerpath Remove Lun Have you contacted anyone from EMC's Customer Support about this issue?Thanks, Brion Report Abuse Like Show 0 Likes (0) 4.
This also indicates that the connected EMC device is CLARiiON, as it displays a value for “CLARiiON logical device count” as 1. Powermt Remove Dead Paths Report Abuse Like Show 0 Likes (0) 6. Re: Removing LUN from Server - PowerPath for Linux - powermt issue Christopher Imes Feb 1, 2011 10:33 PM (in response to Michele-Kf2bQ) Michele, firstly thank you for sharing your experiences Tomorrow I will be removing a LUN from a standalone server...although same OS and version of PowerPath.I will update with result.
Powermt Remove Dead Paths
Re: Removing LUN from Server - PowerPath for Linux - powermt issue Christopher Imes Jan 19, 2011 12:11 PM (in response to Brion) Please review the steps in the "PowerPath for find more info So, my suspicion is that the RAC clusterware is somehow holding the last path 'in use' and not allowing the dead path to be removed. Powermt Remove You can not post a blank message. Powerpath For Linux Installation And Administration Guide This is important in ensuring that different devices added in the future will not be mistaken for the current device.
Community System Administration CommunityCategoryBoardUsers turn on suggestions Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you http://fortecrm.net/cannot-remove/cannot-remove-a-file-in-linux.html Run the command:powermt remove dev=emcpowerWhere corresponds to the LUN to be removed.4. This displays all available path for your SAN device. Finally, remove each path to the device from the SCSI subsystem. Powermt Cannot Remove Device That Is In Use Windows
Report Abuse Like Show 0 Likes (0) 10. All product names are trademarks of their respective companies. Do you want to remove it (y/n/a/q)? have a peek at these guys I had to stop the cluster services on the node, then powerpath allowed me to remove the connection.
There are a few steps listed that you didn't mention whether or not you had performed and you may or may not be performing them in the recommended order. Stopping PowerPath service would not help either. If you keep old ioscan files you can compare and see the reduction in hardware.
I am not sure if that would make a difference...Other than waiting to schedule a reboot of all the servers, I am not sure what else to do.
Possible EMC SAN LUN policy values are: Adaptive, BasicFailover, CLAROpt, LeastBlocks, LeastIos, NoRedirect, Request, RoundRobin, StreamIO, or SymmOpt. In the /tmp/ql_utils directory, there should be a script to rescan the qlogic hbas. (If this script doesn't exist, see the previous post for the steps to get the script.) The It will removed all the dead paths for the device except for one in every case -Pseudo name=emcpowerdCLARiiON ID=APM00083101547 [bkvoltpda RAC cluster]Logical device ID=6006016072C020007EBABDD310E0DE11 [bkvoltpda - /exports on bkvoltp01da - LUN504]state=alive; Three of the four paths associated with the EMC PowerPath pseudo name have been removed, but one remains and I cannot remove it because PowerPath thinks it is 'in use'.[[email protected] bin]#
If you get errors because of the missing devicefiles, you can reinstall them with "insf" 1 Kudo Reply The opinions expressed above are the personal opinions of the authors, not of The general procedure for removing all access to a device is as follows: Procedure 1. Ensuring a Clean Device Removal Close all users of the device and backup device data as needed. For some reason, if you see the default owner and the current owner of a particular LUN is not the same storage processor, then execute the following command, which will make check my blog Removed the device file as suggested with rmsf -a but this caused the I/O path in PP to become unknown so I could not do the remove with a force.
Mode State Q-IOs Errors ============================================================================== 1 qla2xxx sdd SP A4 standby alive 0 0 1 qla2xxx sde SP B4 standby alive 0 0 2 qla2xxx sdf SP A5 active alive 0 MoreWhitePapers Best Answer 0 Mark this reply as the best answer?(Choose carefully, this can't be changed) Yes | No Saving... Report Abuse Like Show 0 Likes (0) 11. It is not necessary to stop I/O to other devices while doing so.
No Yes skip to main | skip to sidebar Thad's Tech Blog My tech tips and tricks usually dealing with Linux. Mode State Q-IOs Errors ============================================================================== 1 qla2xxx sdh SP A4 active alive 0 0 1 qla2xxx sdi SP B4 active alive 0 0 2 qla2xxx sdj SP A5 active alive 0 powermt display – Display High Level HBA I/O Paths powermt display command (without any arguments), displays the available HBAs and their current status. Showing results for Search instead for Do you mean Menu Categories Solutions IT Transformation Internet of Things Topics Big Data Cloud Security Infrastructure Strategy and Technology Products Cloud Integrated Systems Networking
Afterwards, flush I/O and remove all operating system references to the device (as described below). From the few times I've needed to do this, I've followed this specific process and don't recall seeing the behavior you are observing, but I also would have to review my Remove any reference to the device's path-based name, like /dev/sd, /dev/disk/by-path or the major:minor number, in applications, scripts, or utilities on the system. Gurkulindia# powermt display port_mode Storage class = Symmetrix ============================================================================== ———– Storage System ————— — I/O Paths — — Stats — ID Interface Wt_Q Total Dead Q-IOs Mode ============================================================================== Storage class =
Create/Manage Case QUESTIONS? Not sure if it would provide anything meaningful and help identify what is holding onto it, but does lsof on the device provide anything useful to see what process might be Thanks,Michele Report Abuse Like Show 0 Likes (0) 8. Gurkulindia# powermt display dev=all Pseudo name=emcpowera CLARiiON ID=AAA00000000000 [dev-server] Logical device ID=1111111111111111111 [LUN 1] state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP B, current=SP B Array failover mode: 1 ============================================================================== —————- Host —————
Note The older form of these commands, echo "scsi remove-single-device 0 0 0 0" > /proc/scsi/scsi, is deprecated. not in lvmtab). 0 Kudos sathish kannan Valued Contributor [Founder] Options Mark as New Bookmark Subscribe Subscribe to RSS Feed Highlight Print Email to a Friend Report Inappropriate Content 10-01-2006 01:38 Leave a Reply Cancel reply Disclaimer : Procedures posted in this site had no guarantee to work in your Environment, use it on your own Risk when you use it for I have not opened a case with EMC, mostly because I suspect, based on some past experience, the answer will be reboot.Today I made the same change on three more servers
I ran 'powermt check' and said 'y' in response to the 'device path is currently dead, do you want to remove it' messages. I have tried Powermt commands for 'remove' 'remove force' 'release' - all complaining that the 'device is in use'. This can take some minutes.After all dead links are removed, use "powermt save" to save the new config. 0 Kudos Reply Khairy Esteemed Contributor [Founder] Options Mark as New Bookmark Subscribe