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[GH-ISSUE #360] Unable to switch to the second disk storage #218
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Originally created by @leihuang-sketch on GitHub (Nov 21, 2025).
Original GitHub issue: https://github.com/deepseek-ai/3FS/issues/360
Four nodes were used, with two 3.5T hard drives per node
Why can't I switch to the second hard drive after the first hard drive is full? bug?
Physical storage status of 4 nodes
According to the physical hard drive status, it was found that there were two disks that were indeed full, but the system did not switch to the second disk for writing
Virtual directory status
fuse log
storage log
@leihuang-sketch commented on GitHub (Nov 26, 2025):
According to @kangyifei suggestion, adjust
stripsize=chainsizeto solve the problem. Thank you very much.The fundamental reason for this problem is that the
stripsizeis much smaller than thechainsize, which leads to uneven physical disk storage in high concurrency write situations. This means that only certain chains are used, and these chains fill up a certain disk while other disks still have space. This is also the essence of the CRAQ algorithm.