Well this is mostly true in that the same data exists on both disks but not necessarily at the block-level. This will be what btrfs calls "raid1" and what most people would understand to be "mirrored disks". Something else to be aware of: Let's say you have a 2-device btrfs pool. A future release will include support for multiple "unRAID array" pools. A multiple-device pool may only be formatted with btrfs. Something to be aware of: when a directory listing is obtained for a share, the unRAID array disk volumes and all pools which contain that share are merged in this order:Īll the other pools in strverscmp() order.Īs with the current "cache pool", a single-device pool may be formatted with either xfs, btrfs, or reiserfs. The assigned pool functions identically to current cache pool operation. When you create a user share, or edit an existing user share, you can specify which pool should be associated with that share. As long as you reassign the correct devices, data should remain intact. If later you revert back to a pre-6.9 Unraid OS release you will lose your cache device assignments and you will have to manually re-assign devices to cache. Note: When you upgrade a server which has a cache pool defined, a backup of config/disk.cfg will be saved to config/, and then cache device assignment settings are moved out of disk.cfg and into a new file, config/pools/cache.cfg. Pools are created and managed via the Main page. The current "cache pool" is now simply a pool named "cache". This features permits you to define up to 35 named pools, of up to 30 storage devices/pool. That said, here's what's new in this release. We recommend running on test servers only! Important: Beta code is not fully tested and not feature-complete. With that in mind, the obligatory disclaimer: The reason we still mark beta is because we'd like to get wider testing of new multiple-pool feature, as well as perhaps sneak in a couple more refinements. This release marks hopefully the last beta before moving to -rc phase. Welcome (again) to 6.9 release development!
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