Check out my first novel, midnight's simulacra!
13 drives: Difference between revisions
From dankwiki
No edit summary |
No edit summary |
||
| Line 2: | Line 2: | ||
{| class="wikitable" | {| class="wikitable" | ||
! Name !! Setup !! Availability !! | ! Name !! Setup !! Availability !! MaxTol !! MinFail !! Max Rebuild !! Perf | ||
|- | |- | ||
| raid3z | | raid3z | ||
| Line 8: | Line 8: | ||
| 76.9% (10) | | 76.9% (10) | ||
| 3 | | 3 | ||
| 4 | |||
| 100% + fail | | 100% + fail | ||
| | | | ||
| Line 15: | Line 16: | ||
| 69.2% (9) | | 69.2% (9) | ||
| 3 | | 3 | ||
| 4 | |||
| 92.3% | | 92.3% | ||
| | | | ||
| Line 22: | Line 24: | ||
| 84.6% (11) | | 84.6% (11) | ||
| 2 | | 2 | ||
| 3 | |||
| 84.6% + fail | | 84.6% + fail | ||
| | | | ||
| Line 29: | Line 32: | ||
| 76.9% (10) | | 76.9% (10) | ||
| 2 | | 2 | ||
| 3 | |||
| 76.9% | | 76.9% | ||
| | | | ||
| Line 36: | Line 40: | ||
| 61.5% (8) | | 61.5% (8) | ||
| 2 + 2 | | 2 + 2 | ||
| 3 | |||
| 30.8% | | 30.8% | ||
| | | | ||
| Line 43: | Line 48: | ||
| 76.9% (10) | | 76.9% (10) | ||
| 1 + 1 | | 1 + 1 | ||
| 2 | |||
| 46.2% | | 46.2% | ||
| | | | ||
| Line 50: | Line 56: | ||
| 61.5% (8) | | 61.5% (8) | ||
| 1 + 1 + 1 + 1 | | 1 + 1 + 1 + 1 | ||
| 2 | |||
| 25% | | 25% | ||
| | | | ||
| Line 57: | Line 64: | ||
| 30.8% (4) | | 30.8% (4) | ||
| 6 + 2 | | 6 + 2 | ||
| 6 | |||
| 46.2% | | 46.2% | ||
| | | | ||
| Line 64: | Line 72: | ||
| 38.5% (5) | | 38.5% (5) | ||
| 6 + 1 | | 6 + 1 | ||
| 4 | |||
| 46.2% | | 46.2% | ||
| | | | ||
| Line 73: | Line 82: | ||
{| class="wikitable" | {| class="wikitable" | ||
! Name !! Setup !! Availability !! | ! Name !! Setup !! Availability !! MaxTol !! MinFail !! Max Rebuild !! Perf | ||
|- | |- | ||
| raid3z | | raid3z | ||
| Line 119: | Line 128: | ||
| 28.6% (4) | | 28.6% (4) | ||
| 7 + 3 | | 7 + 3 | ||
| | | 8 | ||
| 50% + fail | | 50% + fail | ||
| | | | ||
| Line 127: | Line 136: | ||
| 35.7% (5) | | 35.7% (5) | ||
| 7 + 2 | | 7 + 2 | ||
| | | 6 | ||
| 50% + fail | | 50% + fail | ||
| | | | ||
| Line 135: | Line 144: | ||
| 42.9% (6) | | 42.9% (6) | ||
| 7 + 1 | | 7 + 1 | ||
| | | 4 | ||
| 50% + fail | | 50% + fail | ||
| | | | ||
|} | |} | ||
Revision as of 12:10, 7 February 2022
What's the best setup for 13 drives? I don't need high performance (this will be mostly for archiving media), but very much do not want to lose my data. The drives are 18TB, and ZFS will be used exclusively.
| Name | Setup | Availability | MaxTol | MinFail | Max Rebuild | Perf |
|---|---|---|---|---|---|---|
| raid3z | 10 data, 3 parity | 76.9% (10) | 3 | 4 | 100% + fail | |
| raid3z + HS | 9 data, 3 parity, 1 spare | 69.2% (9) | 3 | 4 | 92.3% | |
| raid2z | 11 data, 2 parity | 84.6% (11) | 2 | 3 | 84.6% + fail | |
| raid2z + HS | 10 data, 2 parity, 1 spare | 76.9% (10) | 2 | 3 | 76.9% | |
| striped raid2z + HS | 2x(4 data, 2 parity), 1 spare | 61.5% (8) | 2 + 2 | 3 | 30.8% | |
| striped raidz + HS | 2x(5 data, 1 parity), 1 spare | 76.9% (10) | 1 + 1 | 2 | 46.2% | |
| striped raidz + HS | 4x(2 data, 1 parity), 1 spare | 61.5% (8) | 1 + 1 + 1 + 1 | 2 | 25% | |
| mirrored raid2z + HS | 2x(4 data, 2 parity), 1 spare | 30.8% (4) | 6 + 2 | 6 | 46.2% | |
| mirrored raidz + HS | 2x(5 data, 1 parity), 1 spare | 38.5% (5) | 6 + 1 | 4 | 46.2% |
14 disks
14 disks might be more attractive. I only list solutions without a hot spare.
| Name | Setup | Availability | MaxTol | MinFail | Max Rebuild | Perf |
|---|---|---|---|---|---|---|
| raid3z | 11 data, 3 parity | 78.6% (11) | 3 | 4 | 100% + fail | |
| raid2z | 12 data, 2 parity | 85.7% (12) | 2 | 3 | 85.7% + fail | |
| striped raid3z | 2x(4 data, 3 parity) | 57.1% (8) | 3 + 3 | 4 | 50% + fail | |
| striped raid2z | 2x(5 data, 2 parity) | 71.4% (10) | 2 + 2 | 3 | 50% + fail | |
| striped raidz | 2x(6 data, 1 parity) | 85.7% (12) | 1 + 1 | 2 | 50% + fail | |
| mirrored raid3z | 2x(4 data, 3 parity) | 28.6% (4) | 7 + 3 | 8 | 50% + fail | |
| mirrored raid2z | 2x(5 data, 2 parity) | 35.7% (5) | 7 + 2 | 6 | 50% + fail | |
| mirrored raidz | 2x(6 data, 1 parity) | 42.9% (6) | 7 + 1 | 4 | 50% + fail |
