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Hi, The Suse (SES4Win) build is significantly out of date. Previous versions had some known overflows. Here’s a daily build of our MSI: https://cloudbase.it/downloads/ceph_v16_0_0_beta.msi Please send me the output of the following commands before upgrading Ceph: wnbd-client.exe -v rbd-wnbd.exe -v Thanks, Lucian From: Kostas Liakakis Hello Lucian, After you confirming in private correspondence that, unless there is a huge demand for it, Server 2008R2 support is unlikely to come soon, I bit the bullet and tried the windows port on Server 2019. I used both SES4Win driver as well as Cloudbase Solutions' WNBD driver, compiled from your repository. My use case is backing up a bunch of files to an RBD image mounted with WNBD and formatted as NTFS. The backup is done with robocopy. The file sizes vary from a few KB to 1-2GB at most, the vast majority being under 10MB however. Total size is about 180GB. The problem is that after sufficient GB of data have been copied, the WNBD mounted NTFS volume gets corrupted and copying stops. In case of SES4Win driver, the copy stopped after about 77GB of data have been copied. Cloudbase's did a bit better, managing to copy about 120GB. The NTFS filesystem in the RBD image is rendered unusable. 'rbd unmap' will fail and resort to forceful unmapping (pardon the vague terms, I don't write it down the first time and I haven't unmapped it this time yet, in case you need me do something). Mapping it again succeeds but Windows sees only a raw, unformated partition. That is to say the partition table (GPT) survived, but the NTFS filesystem was toasted. On the last attempt, with Cloudbase storage driver, the failure manifests at robocopy output like this:
Errors go on like this, until robocopy starts being able to write again, on a different path:
But a bit further, again, errors:
(the errors continue until source directory list is exhausted) The errors with the SES4Win storage driver where much like the above. Cloudbase driver version string is 16.59.18.505, dated March 5th, 2021. I don't have the SES4Win version handy but I believe it is well known. My Ceph cluster version is 14.2.3. This is the image being mapped: rbd image 'grph.publicfolders.backup': Please tell me if there is any other info I can provide. Thanks in advance, -Kostas |
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