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Forum Discussion
Time Machine and bit-rot protection etc
Hi, I have used ReadyNAS for Time Machine backup for my Macs for several years with good experience. Now I intend to buy a new NAS running with OS 6 and like to learn how to use BTRFS in a prope...
When I am using RAID I keep one volume for device. My smaller backup NAS don't have as much capacity, so I use generally jbod on them, and have one volume for every disk. So mainly I am managing features on the share level.
Bit-rot protection depends on software RAID btw - although you can check the check-box with from the web UI, on a jbod volume doing that only enables CoW, and not the bit rot protection feature.
BTW, you were thinking iSCSI on other threads. With iSCSI the client machine (mac in your case) does the formatting, iSCSI provides only an virtual raw disk. BTRFS isn't used in that case, since the mac doesn't do it. The ISCSI LUN itself is stored with BTRFS, but that is just a very large file as far the NAS file system is concerned.
Bit-rot protection depends on software RAID btw - although you can check the check-box with from the web UI, on a jbod volume doing that only enables CoW, and not the bit rot protection feature.
BTW, you were thinking iSCSI on other threads. With iSCSI the client machine (mac in your case) does the formatting, iSCSI provides only an virtual raw disk. BTRFS isn't used in that case, since the mac doesn't do it. The ISCSI LUN itself is stored with BTRFS, but that is just a very large file as far the NAS file system is concerned.
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