Support for Shared SAS storage
Hello, I’ve two compute nodes with SAS Direct Attached sharing the same disks. Looking at the supported types I can’t see this on the documentation: https://www.ovirt.org/documentation/admin-guide/chap-Storage.html There’s is local storage on this documentation, but my case is two machines, both using SAS, connected to the same machines. It’s the VRTX hardware from Dell. Is there any support for this? It should be just like Fibre Channel and iSCSI, but with SAS instead. Thanks,
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found".
No, there’s no support for direct attached shared SAS storage on oVirt/RHV. Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
Wow. That's sound bad. Then what storage type you choose at last (with your SAS connected storage)? VMware vSphere support DAS. Red Hat should do something. 2020年8月8日土曜日 4:06:34 GMT+8、Vinícius Ferrão via Users <users@ovirt.org>が書いたメール: No, there’s no support for direct attached shared SAS storage on oVirt/RHV. Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
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I haven't tried with 4.4 but shared SAS works just fine with 4.3 (and has for many, many years). You simply treat it as Fibre Channel. If your LUNs aren't showing up I'd make sure they're being claimed as multipath devices. You want them to be. After that, just make sure they're sufficiently wiped so they don't look like they're in use. On 8/7/2020 10:49 PM, Lao Dh via Users wrote:
Wow. That's sound bad. Then what storage type you choose at last (with your SAS connected storage)? VMware vSphere support DAS. Red Hat should do something.
2020年8月8日土曜日 4:06:34 GMT+8、Vinícius Ferrão via Users <users@ovirt.org>が書いたメール:
No, there’s no support for direct attached shared SAS storage on oVirt/RHV.
Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org <mailto:users@ovirt.org>> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org <mailto:users@ovirt.org> To unsubscribe send an email to users-leave@ovirt.org <mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
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Really?? Treat it as FC?? Thats new for me. On 8 Aug 2020, at 00:35, Jeff Bailey <bailey@cs.kent.edu<mailto:bailey@cs.kent.edu>> wrote: I haven't tried with 4.4 but shared SAS works just fine with 4.3 (and has for many, many years). You simply treat it as Fibre Channel. If your LUNs aren't showing up I'd make sure they're being claimed as multipath devices. You want them to be. After that, just make sure they're sufficiently wiped so they don't look like they're in use. On 8/7/2020 10:49 PM, Lao Dh via Users wrote: Wow. That's sound bad. Then what storage type you choose at last (with your SAS connected storage)? VMware vSphere support DAS. Red Hat should do something. 2020年8月8日土曜日 4:06:34 GMT+8、Vinícius Ferrão via Users <users@ovirt.org><mailto:users@ovirt.org>が書いたメール: No, there’s no support for direct attached shared SAS storage on oVirt/RHV. Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org<mailto:users@ovirt.org>> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave@ovirt.org<mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
_______________________________________________ Users mailing list -- users@ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave@ovirt.org<mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/2CLI3YSYU7BPI6... _______________________________________________ Users mailing list -- users@ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave@ovirt.org<mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/WOBHQDCBZZK5WK... _______________________________________________ Users mailing list -- users@ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave@ovirt.org<mailto:users-leave@ovirt.org> Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/UY52JRY5EMQJTM...
Jeff. Your answer inspire me. I'm going to try it again. :) 2020年8月8日土曜日 12:31:16 GMT+8、Vinícius Ferrão via Users <users@ovirt.org>が書いたメール: Really?? Treat it as FC?? Thats new for me. On 8 Aug 2020, at 00:35, Jeff Bailey <bailey@cs.kent.edu> wrote: I haven't tried with 4.4 but shared SAS works just fine with 4.3 (and has for many, many years). You simply treat it as Fibre Channel. If your LUNs aren't showing up I'd make sure they're being claimed as multipath devices. You want them to be. After that, just make sure they're sufficiently wiped so they don't look like they're in use. On 8/7/2020 10:49 PM, Lao Dh via Users wrote: Wow. That's sound bad. Then what storage type you choose at last (with your SAS connected storage)? VMware vSphere support DAS. Red Hat should do something. 2020年8月8日土曜日 4:06:34 GMT+8、Vinícius Ferrão via Users <users@ovirt.org>が書いたメール: No, there’s no support for direct attached shared SAS storage on oVirt/RHV. Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/2CLI3YSYU7BPI6... _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/WOBHQDCBZZK5WK... _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/UY52JRY5EMQJTM... _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/275GTMI6XQKR52...
On Sat, Aug 8, 2020 at 6:56 AM Jeff Bailey <bailey@cs.kent.edu> wrote:
I haven't tried with 4.4 but shared SAS works just fine with 4.3 (and has for many, many years). You simply treat it as Fibre Channel. If your LUNs aren't showing up I'd make sure they're being claimed as multipath devices. You want them to be. After that, just make sure they're sufficiently wiped so they don't look like they're in use.
Correct. FC in oVirt means actually not "iSCSI". Any device - including local devices - that multipath expose, and is not iSCSI is considered as FC. This is not officially supported and not documented anywhere. I learned about it only we tried to deploy strict multipath blacklist allowing only "iscsi" or "fc" transport, and found that it broke users' setups with sas other esoteric storage. Since 4.4 is the last feature release, this will never change even if it is not documented. Nir
On 8/7/2020 10:49 PM, Lao Dh via Users wrote:
Wow. That's sound bad. Then what storage type you choose at last (with your SAS connected storage)? VMware vSphere support DAS. Red Hat should do something.
2020年8月8日土曜日 4:06:34 GMT+8、Vinícius Ferrão via Users <users@ovirt.org>が書いたメール:
No, there’s no support for direct attached shared SAS storage on oVirt/RHV.
Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
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Update for all. The deployment finally detect the SAS collected storage. After manual compile the driver for the RAID control PCI card.Nir is correct. FC detect anything that is not "NFS, iSCSI". As this time it also detect a local connected SATA SSD. 2020年8月10日月曜日 1:55:37 GMT+8、Nir Soffer <nsoffer@redhat.com>が書いたメール: On Sat, Aug 8, 2020 at 6:56 AM Jeff Bailey <bailey@cs.kent.edu> wrote:
I haven't tried with 4.4 but shared SAS works just fine with 4.3 (and has for many, many years). You simply treat it as Fibre Channel. If your LUNs aren't showing up I'd make sure they're being claimed as multipath devices. You want them to be. After that, just make sure they're sufficiently wiped so they don't look like they're in use.
Correct. FC in oVirt means actually not "iSCSI". Any device - including local devices - that multipath expose, and is not iSCSI is considered as FC. This is not officially supported and not documented anywhere. I learned about it only we tried to deploy strict multipath blacklist allowing only "iscsi" or "fc" transport, and found that it broke users' setups with sas other esoteric storage. Since 4.4 is the last feature release, this will never change even if it is not documented. Nir
On 8/7/2020 10:49 PM, Lao Dh via Users wrote:
Wow. That's sound bad. Then what storage type you choose at last (with your SAS connected storage)? VMware vSphere support DAS. Red Hat should do something.
2020年8月8日土曜日 4:06:34 GMT+8、Vinícius Ferrão via Users <users@ovirt.org>が書いたメール:
No, there’s no support for direct attached shared SAS storage on oVirt/RHV.
Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
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On Wed, Aug 12, 2020 at 9:46 AM Lao Dh <hkexdong@yahoo.com.hk> wrote:
Update for all. The deployment finally detect the SAS collected storage. After manual compile the driver for the RAID control PCI card. Nir is correct. FC detect anything that is not "NFS, iSCSI". As this time it also detect a local connected SATA SSD.
You should blacklist this local device, see the instructions in /etc/multipath.conf.
2020年8月10日月曜日 1:55:37 GMT+8、Nir Soffer <nsoffer@redhat.com>が書いたメール:
On Sat, Aug 8, 2020 at 6:56 AM Jeff Bailey <bailey@cs.kent.edu> wrote:
I haven't tried with 4.4 but shared SAS works just fine with 4.3 (and
has for many, many years). You simply treat it as Fibre Channel. If your LUNs aren't showing up I'd make sure they're being claimed as multipath devices. You want them to be. After that, just make sure they're sufficiently wiped so they don't look like they're in use.
Correct. FC in oVirt means actually not "iSCSI". Any device - including local devices - that multipath expose, and is not iSCSI is considered as FC.
This is not officially supported and not documented anywhere. I learned about it only we tried to deploy strict multipath blacklist allowing only "iscsi" or "fc" transport, and found that it broke users' setups with sas other esoteric storage.
Since 4.4 is the last feature release, this will never change even if it is not documented.
Nir
On 8/7/2020 10:49 PM, Lao Dh via Users wrote:
Wow. That's sound bad. Then what storage type you choose at last (with your SAS connected storage)? VMware vSphere support DAS. Red Hat should do something.
2020年8月8日土曜日 4:06:34 GMT+8、Vinícius Ferrão via Users <users@ovirt.org が書いたメール:
No, there’s no support for direct attached shared SAS storage on oVirt/RHV.
Fibre Channel is a different thing that oVirt/RHV supports.
On 7 Aug 2020, at 08:52, hkexdong--- via Users <users@ovirt.org> wrote:
Hello Vinícius, Do you able to connect the SAS external storage? Now I've the problem during host engine setup. Select Fibre Channel and end up show "No LUNS found". _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/RDPLKGIRN5ZGIE...
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On 12 Aug 2020, at 21:16, thomas@hoberg.net wrote:
Since 4.4 is the last feature release, this will never change even if it is not documented.
Nir
Hi Nir, could you please clarfiy: What does "last feature release" mean here: Is oVirt being feature frozen in preparation to something more drastic?
no, features are not frozen. We’re moving to a mode where we deliver features in shorter cycles, in 4.4.z instead of one large 10+ month major release. (e.g. in 4.4.3 there’s 25 RFEs targeted currently) That said, about the original discussion point - it’s very unlikely we’ll change behavior and we’ll keep treating any non-iscsi multipath devices as FC since it works good enough and actually enables special use cases Thanks, michal
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participants (7)
-
hkexdong＠yahoo.com.hk -
Jeff Bailey -
Lao Dh
-
Michal Skrivanek -
Nir Soffer -
thomas＠hoberg.net -
Vinícius Ferrão