SR_BACKEND_FAILURE_78 when trying to create VDI
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Hello everyone,
so I have a Dell R740 host running xcp-ng 8.3. Storage is handled by a PERC H730P controller where I have created 3 virtual disks
A RAID1 of two 480Gb SSDs to be used as an SR for VM disks.
A RAID1 of two 2Tb SAS Drives where I have split a Virtual Disk of 100Gb for the OS and the rest to be used as an SR for VMs that do not require speedy drives and attached storage/backups/etc.When creating an SR on the large SAS virtual disk I cannot create VDIs, I get SR_BACKEND_FAILURE_78. I have tried creating the SR as LVM and ext4 it is the same story.
I have to point out that this occurs only through Xen Orchestra (I am using the sources build). Creating a volume via command line lvcreate seems to work fine, also when ext4 is used I am able to mount the filesystem and create files and directories.
Also I have thought about formatting the host and starting all over again without splitting the SAS RAID1 because maybe the controller has created messed up sectors or something?
The problem with this is that it is the pool master host and I am afraid I will mess up something on the other host that is running the prod VMs which have hardware-tied activations of enterprise software. Will switching the pool master from XO break something in the HWID of the VMs?Drives are 4Kn. I also tried running fsck on the ext4 and when completed I can create VDIs but the whole filesystem is reduced to 4Gb from the 1.5Tb it should have.
I am literally lost
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@cmanos Hello, there is a problem with VHD on 4KiB block size devices, you can use the largeblock SR to workaround the issue:
https://xcp-ng.org/forum/topic/8901/largeblocksr-for-4kib-blocksize-disks -
Or even test the qcow2 beta and report if you have issues
