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- 3 Drive Configuration | TrueNAS Community
The drive prices for 16TB drives (specifically Exos) are pretty decent compared to 10TB I think, thus why I want 16TB Are there any downsides to a 3 way mirror? Would it allow two out of the three drives fail without incident? Also if you know any documentation on it that would help a lot Also with RAIDZ, adding drives to a pool later requires resilvering, does a mirror 3 way mirror require
- Mirroring the Boot Pool | TrueNAS Documentation Hub
Adding a second storage device to the boot pool changes the configuration to a Mirror This allows one of the devices to fail and the system still boots If one of the two devices were to fail, that device is easily detached and replaced When adding a second device to create a mirrored boot pool, consider these caveats: Capacity: The new device must have at least the same capacity as the
- Cannot add a mirrored drive to an existing single disk pool
No, you don't want to add a vDev This is how to attach a Mirror device, (though we are requesting the wording to be clearer); Go to "Storage" Under "Topology", select "Manage Devices" Select the stripe with your single disk, (but don't select the current disk) You should now have an "Extend" option to the right, select it Now select your new disk, and press the "Extend" button It should now
- SOLVED - Help understanding Mirrored vdevs in relation to pools
12 disks in 6 mirror vdevs give you the IOPS of 6 disks At the expense of less resiliency - one disk is easy peasy, lose two disks and you might still be ok, but as soon as you lose an entire vdev, the pool is toast So your assumption about the right three disks failing is correct
- Changing a from stripe to mirror in the System Dataset Pool
Hello Everyone! In my TrueNAS instance Ive got one HDD only in the System Dataset Pool in ZFS stripe mode Ive got 2 new SSDs I want to put in its place What I want to do is to smoothly move quite important business data across from that old HDD onto SSDs and leave them (the SSDs) in mirror
- SOLVED - Best disk configuration (RAID) for 4 HD x 4TB each (TrueNAS . . .
With 4 drives, unless you want a 4-way mirror, the best configuration is a RAIDZ2 VDEV composed of all the 4 drives since it gives you better resiliency than 2 VDEVS in a 2-way mirror configuration each
- Creating Pools | TrueNAS Documentation Hub
The Pool Manager suggests a vdev layout from the number of disks added to the vdev For example, if two disks are added, TrueNAS automatically configures the vdev as a mirror, where the total available storage is the size of one added disk while the other disk provides redundancy
- Some differences between RAIDZ and mirrors, and why we use . . . - TrueNAS
When most people hear "mirrors" what they're seeing in their head is a two-way mirror And, yes, if you lose any single disk in a pool made of two-way mirror vdevs, you've lost redundancy That is, there is some portion of your data in the pool that cannot be recovered if there are any failures (read errors, etc) in the other half of that mirror
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