Search file system for cluster virtualization


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Good,

There are about 10 servers virtualization on Linux. VE are hosted locally on servers.

Desire:
To organize raspredelennoi fs on the serer that would have a possibility online of migration. + reservations.

If anyone has any experience of using distributed file systems — please share.

Thank you.
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6 Answers

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Raise a separate piece of metal with a bunch of screws and give the LVM partition on iSCSI. Distributed FS in this case (for virtuallock and not just warehousing) file will be very big brake in addition to the fiddling with split-brain on such systems is not trivial. If you want to play, and to really work see specialized glands.
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Of all GPFS file systems, the most normal, though paid. Just read the documentation on GlusterFS (not so much) and I think you no longer wish to use it =)
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However, for your purposes even GPFS can have its disadvantages — as I understand you have a warehouse will simultaneously play the role of customers, i.e. to read the data from itself and other nodes. And if so, it is best to ensure the physical presence of the file on the machine that it most often reads. Not sure what GPFS is able
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SAN
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Use DRBD, if there is a separate interface for him to select, from any of the FS or lvm + iscsi. Do not understand migration as a block device, not FS. What kind of virtualization do you have?
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ceph? in vanila ranging from 32! =)
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Hadoop FS?
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