Unfortunately no one can be told what fun_plug is - you have to see it for yourself.
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I would like to know easiest way to upgrade my DNS323 hdds from 500GB (RAID1) to 2TB (JBOD) without loosing stored data.
Do I have to copy all data from DNS323 to my computer first then install new hdd on DNS323, and copy again the data from my computer to DNS323?
Is this only way to do?
If anybody knows easy way to do, let me share.
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I'm testing this and will post back the results.
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Been out of town, so I'm still working on it. For a short answer, it would be best to copy all your data off, set up the drives, and then copy it back on. To do it without losing the data, would require me to have telnet into the DNS (I don't have a serial cable), but still be able to cleanly unmount both drives. Since my current setup has the fun_plug running from the HDD, it cannot be unmounted. I will have to set-up telnet access from a USB drive and then attempt it. It is just easier to back-up your data.
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If you are worried about not losing stored data when migrating from a standard volume to JBOD - I would suggest that you not use JBOD - my tests on single drive failure in a JBOD have resulted in the loss of all stored data.
Unless you have a single large file exceeding 1TB (a large database perhaps) - or some other reason why you need a storage volume larger than a single disk, you'd probably be better off with two standard volumes - this reduces the potential amount of data lost in a disk failure.
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