Dear ones, I beg your pardon for coming back on the same issue: let me rephrase more succinctly.
A view from the REST API about our data domain is: > > $ curl -k -s -u 'admin@internal:supersecret' -H 'Accept: > application/json' ' > https://engine.example.com/ovirt-engine/api/storagedomains' | jq '[ > .["storage_domain"?]|.[0:2]|.[]| {name:.name,storage: .storage | > {type:.type, lun: [ .volume_group.logical_units.logical_unit[] | {portal: > .portal, target: .target } ]} } ]' > [ > { > "name": "hosted_storage", > "storage": { > "type": "iscsi", > "lun": [ > { > "portal": "10.201.204.10:3260,0", > "target": "iqn.2002-03.com.compellent:5000d31004235a43" > } > ] > } > }, > { > "name": "ovirt-data", > "storage": { > "type": "iscsi", > "lun": [ > { > "portal": "10.201.205.20:3260,0", > "target": "iqn.2002-03.com.compellent:5000d3100423524b" > }, > { > "portal": "10.201.205.20:3260,0", > "target": "iqn.2002-03.com.compellent:5000d3100423524a" > }, > { > "portal": "10.201.205.10:3260,0", > "target": "iqn.2002-03.com.compellent:5000d31004235a4b" > }, > { > "portal": "10.201.205.10:3260,0", > "target": "iqn.2002-03.com.compellent:5000d31004235a4a" > }, > { > "portal": "10.201.204.20:3260,0", > "target": "iqn.2002-03.com.compellent:5000d31004235246" > }, > { > "portal": "10.201.204.20:3260,0", > "target": "iqn.2002-03.com.compellent:5000d31004235245" > }, > { > "portal": "10.201.204.10:3260,0", > "target": "iqn.2002-03.com.compellent:5000d31004235a46" > }, > { > "portal": "10.201.204.10:3260,0", > "target": "iqn.2002-03.com.compellent:5000d31004235a45" > } > ] > } > } > ] Is there a way to add to the "hosted_storage" all the available path on different iSCSI portals and different iSCSI targets, as I did for the "ovirt-data" storage domain? Thank you very much for your suggestions. Best regards, Francesco Castellano On Wed, Nov 6, 2019 at 2:53 PM Francesco Castellano < francesco.castell...@gmail.com> wrote: > Dear sirs, > > we're trying to install an SHE oVirt 4.3.6 using an iSCSI SAN that > provides us multiple targets (8) over 4 different portals. Following 5.1 of > "RHV installation using Cockpit" we set up iscsi and multipath ahead with a > 90GB LUN to be used for the engine VM. Unfortunately, even if the node OS > sees correctly the LUN, e.g.: > > # multipath -ll >> 36000d31004235a000000000000000018 dm-34 COMPELNT,Compellent Vol >> size=90G features='1 queue_if_no_path' hwhandler='0' wp=rw >> `-+- policy='service-time 0' prio=1 status=active >> |- 16:0:0:3 sdu 65:64 active ready running >> |- 24:0:0:3 sdt 65:48 active ready running >> |- 17:0:0:3 sds 65:32 active ready running >> |- 25:0:0:3 sdv 65:80 active ready running >> |- 15:0:0:3 sdx 65:112 active ready running >> |- 29:0:0:3 sdw 65:96 active ready running >> |- 28:0:0:3 sdy 65:128 active ready running >> |- 20:0:0:3 sdz 65:144 active ready running >> `- 21:0:0:3 sdaa 65:160 active ready running > > > # lsscsi -ist | grep 36000d31004235a000000000000000018 >> [15:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a43,t,0x0 >> /dev/sdx 36000d31004235a000000000000000018 96.6GB >> [16:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a43,t,0x0 >> /dev/sdu 36000d31004235a000000000000000018 96.6GB >> [17:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a44,t,0x0 >> /dev/sds 36000d31004235a000000000000000018 96.6GB >> [20:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235243,t,0x0 >> /dev/sdz 36000d31004235a000000000000000018 96.6GB >> [21:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235244,t,0x0 >> /dev/sdaa 36000d31004235a000000000000000018 96.6GB >> [24:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a48,t,0x0 >> /dev/sdt 36000d31004235a000000000000000018 96.6GB >> [25:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235a49,t,0x0 >> /dev/sdv 36000d31004235a000000000000000018 96.6GB >> [28:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235248,t,0x0 >> /dev/sdy 36000d31004235a000000000000000018 96.6GB >> [29:0:0:3] disk iqn.2002-03.com.compellent:5000d31004235249,t,0x0 >> /dev/sdw 36000d31004235a000000000000000018 96.6GB >> > > # iscsiadm -m session | grep -E '[a2]4[3489]' | sort -k 3.8 >> tcp: [1] 10.201.204.10:3260,0 >> iqn.2002-03.com.compellent:5000d31004235a43 (non-flash) >> tcp: [2] 10.201.204.10:3260,0 >> iqn.2002-03.com.compellent:5000d31004235a43 (non-flash) >> tcp: [3] 10.201.204.10:3260,0 >> iqn.2002-03.com.compellent:5000d31004235a44 (non-flash) >> tcp: [6] 10.201.204.20:3260,0 >> iqn.2002-03.com.compellent:5000d31004235243 (non-flash) >> tcp: [7] 10.201.204.20:3260,0 >> iqn.2002-03.com.compellent:5000d31004235244 (non-flash) >> tcp: [10] 10.201.205.10:3260,0 >> iqn.2002-03.com.compellent:5000d31004235a48 (non-flash) >> tcp: [11] 10.201.205.10:3260,0 >> iqn.2002-03.com.compellent:5000d31004235a49 (non-flash) >> tcp: [14] 10.201.205.20:3260,0 >> iqn.2002-03.com.compellent:5000d31004235248 (non-flash) >> tcp: [15] 10.201.205.20:3260,0 >> iqn.2002-03.com.compellent:5000d31004235249 (non-flash) >> > > during the engine deploy neither via cockpit nor with "hosted-engine > --deploy" it was able to see any LUN. > > Having a lot of portals (4) and each having 4 targets (two of which being > independents path to the LUN), we chose a portal to discover, it proposed > us 4 targets, and we had to choose a target to log in, but in the end, no > LUN was proposed. > > After a few attempts, we found that, if we logged out from any targets > (and clean up the open-iscsi database), after the login in an appropriate > target, the installer proposed us the LUN, and we successfully deployed the > SHE. > > But unfortunately, such an installation doesn't track effectively all the > 8 paths over 8 different targets, but just the one chosen during the > installation (this is different, for example, with respect to other LUNs > for data domains that we attached afterwards). Thus we miss the HA we aimed > to for the engine data domain. > > I said this, because when I ask for /ovirt-engine/api/storagedomains, > whilst a second LUN has 8 children with different targets > below storage_domain/${another data > domain}/storage/volume_group/logical_units/logical_unit/, for the > hosted_storage I just have one. > > My questions are: > > a) is there a way to add the other targets/paths consistently (even > through the REST interface)? > b) is there another installation, or recovery, procedure to get the engine > data domain in high availability on our iSCSI topology? > > Thank you so much for your suggestions, they are really appreciated, > > Best regards, > Francesco Castellano > > > >
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