On Thu, Jul 13, 2017 at 5:59 PM, Gianluca Cecchi <gianluca.cec...@gmail.com> wrote:
> On Thu, Jul 13, 2017 at 6:23 PM, Gianluca Cecchi < > gianluca.cec...@gmail.com> wrote: > >> Hello, >> I have cleanly removed an iSCSI domain from oVirt. There is another one >> (connecting to another storage array) that is the master domain. >> But I see that oVirt hosts still maintain the iscsi session to the LUN. >> So I want to clean from os point of view before removing the LUN itself >> from storage. >> >> At the moment I still see the multipath lun on both hosts >> >> [root@ov301 network-scripts]# multipath -l >> . . . >> 364817197b5dfd0e5538d959702249b1c dm-2 EQLOGIC ,100E-00 >> size=4.0T features='0' hwhandler='0' wp=rw >> `-+- policy='round-robin 0' prio=0 status=active >> |- 9:0:0:0 sde 8:64 active undef running >> `- 10:0:0:0 sdf 8:80 active undef running >> >> and >> [root@ov301 network-scripts]# iscsiadm -m session >> tcp: [1] 10.10.100.9:3260,1 iqn.2001-05.com.equallogic:4-7 >> 71816-e5d0dfb59-1c9b240297958d53-ovsd3910 (non-flash) >> tcp: [2] 10.10.100.9:3260,1 iqn.2001-05.com.equallogic:4-7 >> 71816-e5d0dfb59-1c9b240297958d53-ovsd3910 (non-flash) >> . . . >> >> Do I have to clean the multipath paths and multipath device and then >> iSCSI logout, or is it sufficient to iSCSI logout and the multipath device >> and its path will be cleanly removed from OS point of view? >> >> I would like not to have multipath device in stale condition. >> >> Thanks >> Gianluca >> > > > I have not understood why, if I destroy a storage domain, still oVirt > maintains its LVM structures.... > Destroy is an Engine command - it does not touch the storage at all (the assumption is that you've someow lost/deleted your storage domain and now you want to get rid of it from the Engine side). > > Anyway, these were the step done at host side before removal of the LUN at > storage array level > I assume removing the LUN + reboot would have been quicker. Y. > > Pick up the VG of which the lun is still a PV for.. > > vgchange -an 5ed04196-87f1-480e-9fee-9dd450a3b53b > --> actually all lvs were already inactive > > vgremove 5ed04196-87f1-480e-9fee-9dd450a3b53b > Do you really want to remove volume group > "5ed04196-87f1-480e-9fee-9dd450a3b53b" > containing 22 logical volumes? [y/n]: y > Logical volume "metadata" successfully removed > Logical volume "outbox" successfully removed > Logical volume "xleases" successfully removed > Logical volume "leases" successfully removed > Logical volume "ids" successfully removed > Logical volume "inbox" successfully removed > Logical volume "master" successfully removed > Logical volume "bc141d0d-b648-409b-a862-9b6d950517a5" successfully > removed > Logical volume "31255d83-ca67-4f47-a001-c734c498d176" successfully > removed > Logical volume "607dbf59-7d4d-4fc3-ae5f-e8824bf82648" successfully > removed > Logical volume "dfbf5787-36a4-4685-bf3a-43a55e9cd4a6" successfully > removed > Logical volume "400ea884-3876-4a21-9ec6-b0b8ac706cee" successfully > removed > Logical volume "1919f6e6-86cd-4a13-9a21-ce52b9f62e35" successfully > removed > Logical volume "a3ea679b-95c0-475d-80c5-8dc4d86bd87f" successfully > removed > Logical volume "32f433c8-a991-4cfc-9a0b-7f44422815b7" successfully > removed > Logical volume "7f867f59-c977-47cf-b280-a2a0fef8b95b" successfully > removed > Logical volume "6e2005f2-3ff5-42fa-867e-e7812c6726e4" successfully > removed > Logical volume "42344cf4-8f9c-464d-ab0f-d62beb15d359" successfully > removed > Logical volume "293e169e-53ed-4d60-b22a-65835f5b0d29" successfully > removed > Logical volume "e86752c4-de73-4733-b561-2afb31bcc2d3" successfully > removed > Logical volume "79350ec5-eea5-458b-a3ee-ba394d2cda27" successfully > removed > Logical volume "77824fce-4f95-49e3-b732-f791151dd15c" successfully > removed > Volume group "5ed04196-87f1-480e-9fee-9dd450a3b53b" successfully removed > > pvremove /dev/mapper/364817197b5dfd0e5538d959702249b1c > > multipath -f 364817197b5dfd0e5538d959702249b1c > > iscsiadm -m session -r 1 -u > Logging out of session [sid: 1, target: iqn.2001-05.com.equallogic:4- > 771816-e5d0dfb59-1c9b240297958d53-ovsd3910, portal: 10.10.100.9,3260] > Logout of [sid: 1, target: > iqn.2001-05.com.equallogic:4-771816-e5d0dfb59-1c9b240297958d53-ovsd3910, > portal: 10.10.100.9,3260] successful. > > iscsiadm -m session -r 2 -u > Logging out of session [sid: 2, target: iqn.2001-05.com.equallogic:4- > 771816-e5d0dfb59-1c9b240297958d53-ovsd3910, portal: 10.10.100.9,3260] > Logout of [sid: 2, target: > iqn.2001-05.com.equallogic:4-771816-e5d0dfb59-1c9b240297958d53-ovsd3910, > portal: 10.10.100.9,3260] successful. > > done. > > NOTE: on one node I missed the LVM clean before logging out of the iSCSI > session > this resulted in impossibility to have a clean status because the > multipath device resulted as without paths but still used (by LVM) > and the command > multipath -f > failed. > Also vgs and lvs commands threw out many errors and many errors in > messages too > > These were the commands to clean the situation also on that node. > > dmsetup remove 5ed04196-87f1-480e-9fee-9dd450a3b53b/master > dmsetup remove 5ed04196-87f1-480e-9fee-9dd450a3b53b/inbox > dmsetup remove 5ed04196-87f1-480e-9fee-9dd450a3b53b/xleases > dmsetup remove 5ed04196-87f1-480e-9fee-9dd450a3b53b/leases > dmsetup remove 5ed04196-87f1-480e-9fee-9dd450a3b53b/outbox > dmsetup remove 5ed04196-87f1-480e-9fee-9dd450a3b53b/ids > dmsetup remove 5ed04196-87f1-480e-9fee-9dd450a3b53b/metadata > > multipath -f 364817197b5dfd0e5538d959702249b1c > > Gianluca > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > >
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