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- mirror | TrueNAS Community
2 drive mirror READ performance (no ARC) beats 2x2 mirror? I've got two volumes on the same FreeNAS 11 box that use HDDs for data storage: -- #1 is a 2 drive mirror using 5 year old WD Se 4 TB HDDs (WD Se was the predecessor to WD Red Pro) -- #2 is a 2x2 mirror (like a RAID10) using brand new WD Gold 10 TB HDDs Both are set up the same way with
- Reword pool Extend to Attach a Mirror to be consistent . . . - TrueNAS
In Truenas Scale (no idea how it’s on Core), if you want to convert a single disk pool to a mirrored pool, you use the “Extend” feature in “Devices” menu However, this wording is very confusing and even misleading to an extent Under the hood, the equivalent of this feature is the “zpool
- troubleshooting mirror vdev wont expand | TrueNAS Community
some history, the original pools were created piece meal over time, as I was migrating existing disks from my previous btrfs raid6 pools, to these scale mirror sets, some were created as single disks, then mirror added, then mirror vdevs added, over time, as I did the whole data shuffle between 2 systems
- Mirroring the Boot Pool | TrueNAS Documentation Hub
If the original operating system device fails and is detached, the boot mirror changes to consist of just the newer device and grows to whatever capacity it provides However, new devices added to this mirror must now be as large as the new capacity
- drywall - Safely hang a mirror that does not have hooks - Home . . .
I mounted a similar mirror to a wall by drilling symmetrically-spaced holes through the frame (about one per six inches of frame perimeter) and screwing the mirror directly to the drywall using appropriate-length black phosphate coarse thread drywall screws
- Performance: RAIDz1 vs mirroring | TrueNAS Community
For a personal computer (Unix) I have to decide between mirroring 2 SSDs or RAIDz1 3 SSDs After some reading, I found places that say mirroring is faster than RAIDz1 This doesn't make any sense to me Yes, RAIDz1 has to compute the parity info for the third disk But, CPU times (for
- 3 Drive Configuration | TrueNAS Community
It will work You can create a pool with only a single 3-way mirror and at a later date add another 3-way mirror to the very same pool The pool will then extend according to the size of that new mirror Such a pool will be and remain safe and stable It is not ideal because at first, all your data will be on your first mirror
- How to set up 2-way and 3-way mirrors. | TrueNAS Community
A "3-way" mirror would have three columns and two rows, and would consist of two mirrors, of three disks each, striped together If you wanted to keep the same level of redundancy, this would be correct But there's nothing inherent in ZFS that would keep you from striping a two-disk mirror with a pair of three-disk mirrors, or vice versa
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