Supporting larger than 8TiB Lun's iSCSI RHV/oVirt

I have a question regarding the information in the following screenshot. According to https://access.redhat.com/articles/906543 there is an 8TiB limit I assume this is per LUN? Also if I want to go past 8TiB per LUN is there some configuration I need to edit somewhere? And is there a problem with going past 8TiB per LUN? I think it more manageable to simply increase LUN sizes if you have the storage, instead of adding additional LUN’s to your storage domain, however I may not fully understand the problems with increasing LUN sizes. Thank you. [cid:image001.png@01D5948E.D0101740] Jacob.

Hi Jacob, Currently only 8TiB limit is supported. You can update (increase) the "MaxBlockDiskSizeInGibiBytes" value, but it was not tested. Either: 1) Preferred way - run from the deploy "bin" folder (enter new integer value instead of XXX, currently it's 8192): ./engine-config --set MaxBlockDiskSizeInGibiBytes=XXX Verify that the value was successfully updated: ./engine-config --get MaxBlockDiskSizeInGibiBytes 2) Or update the database directly: table = "vdc_option" column = "option_name" Search the row with "MaxBlockDiskSizeInGibiBytes". Hope it helps! Pavel On Wed, Nov 6, 2019 at 9:03 PM Green, Jacob Allen /C < jacob.a.green@exxonmobil.com> wrote:
I have a question regarding the information in the following screenshot. According to https://access.redhat.com/articles/906543 there is an 8TiB limit I assume this is per LUN? Also if I want to go past 8TiB per LUN is there some configuration I need to edit somewhere? And is there a problem with going past 8TiB per LUN? I think it more manageable to simply increase LUN sizes if you have the storage, instead of adding additional LUN’s to your storage domain, however I may not fully understand the problems with increasing LUN sizes.
Thank you.
Jacob. _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/QKPBEVAI57F4YT...
participants (2)
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Green, Jacob Allen /C
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Pavel Bar