[Discuss] ZFS for an Encrypted External Disk: My Experience and Notes

[Rich Pieri]

On Wed, 27 Jul 2022 11:51:58 -0400
markw at mohawksoft.com wrote:

> I just replaced a bad drive with sdk. I've had this configuration
> since 2T hard disks became afordable. It's not getting on in years,
> and I'm only getting 4T, but it is redundant. The logs and cache
> drives are ssd.

root at marller:~# zpool status
  pool: zfs
 state: ONLINE
  scan: scrub repaired 0B in 07:56:10 with 0 errors on Sun Jul 10 08:20:11 2022
config:

  NAME                                             STATE     READ WRITE CKSUM
  zfs                                              ONLINE       0     0     0
    mirror-0                                       ONLINE       0     0     0
      ata-WDC_WD40EFRX-68N32N0_WD-WCC7K2DCAHVT     ONLINE       0     0     0
      ata-WDC_WD40EFRX-68N32N0_WD-WCC7K2ZE8257     ONLINE       0     0     0
    mirror-1                                       ONLINE       0     0     0
      ata-WDC_WD40EFRX-68N32N0_WD-WCC7K2SZ8AVP     ONLINE       0     0     0
      ata-WDC_WD40EFRX-68N32N0_WD-WCC7K4ADA716     ONLINE       0     0     0
  cache
    ata-Crucial_CT250MX200SSD4_15100EE96B90-part3  ONLINE       0     0     0

I have four 4T drives, 16T raw, in pairs so 8T usable. The OS drive on
the current incarnation is a 250GB NVMe (hand me down from another
machine). Since I only need a small portion of the space for the OS I
carved out a 100GB partition to use as cache (L2ARC).

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