Disk configuration for 'commitment'

For more info see 'commitment'.

sda (4TB)
V6GGTPKS
data

sdb (4TB)
V6H42DES
data

sdc (4TB)
V1JBN0GH
data

sdd (4TB)
V6GGRKVS
data

sde (500G)
184220A00B57

fast (500GB)

sdh (500G)
184301A00645

fast (500GB)

sdf (250GB)
184301A00645

/boot/efi

md0 (2GB)

swap (10GB)

md1 (150GB)

best (80GB)

sdg (250GB)
182481801165

/boot/efi

md0 (2GB)

swap (10GB)

md1 (150GB)

best (80GB)

nvme0n1 (500GB)
184634801586

data:cache

Device	Drive	Model	Commissioned	Sequential	Random	WRL	Temp °C	Data Sheet
sd[abcd]	WD Ultrastar 4TB *	HGST HUS726T4TALA6L4	2019-03-11	140 MB/s	2 MB/s	550TB/yr	5°C to 60°C	download
sd[eh]	WD Blue 500GB SATA SSD M.2	WDC WDS500G2B0B	2019-03-11	388 MB/s	56 MB/s	200 TBW	0°C to 70°C	download
sd[fg]	WD Blue 250GB SATA SSD M.2	WDC WDS250G2B0B-00YS70	2019-03-21	304 MB/s	47 MB/s	100 TBW	0°C to 70°C	download
nvme0n1	WD Black 500GB NVMe SSD	WDS500G2X0C-00L350	2019-03-11	1,469 MB/s	84 MB/s	300 TBW	0°C to 70°C	download

MD RAID

Note: all MD RAID devices are used with a single partition.

Device	RAID	Components	Capacity
/dev/md0	RAID1	2x 2GB	2GB
/dev/md1	RAID1	2x 150GB	150GB

Mounts

Partition	Capacity	File-system	Mount point	Mount options
/dev/sdf1	1GB	EFI System	/boot/efi	defaults
/dev/md0p1	2GB	ext4	/boot	noatime
/dev/md1p1	150GB	ext4	/	noatime

ZFS zpools

Pool	RAID	Capacity	Compression	Dedup
best	RAID0	160GB	off	off
fast	RAID1	464GB	lz4	on
data	RAIDZ	14.5TB	zstd	on

ZFS datasets

These are the datasets we create on our zpools.

Dataset	Mount	Compression	Dedup
best	/best	off	off
fast	/fast	lz4	on
fast/home	/home	lz4	on
fast/home/jj5	/home/jj5	lz4	on
fast/session	/var/log/session	zstd	off
data	/data	zstd	on
data/archive	/data/archive	zstd	on
data/backup	/data/backup	zstd	on
data/blob	/data/blob	zstd	on
data/copy	/data/copy	zstd	on
data/database	/data/database	off	off
data/host	/data/host	zstd	on
data/image	/data/image	off	off
data/share	/data/share	zstd	on

Commands

Initial setup

#!/bin/bash

set -euo pipefail;

NVME_DISK=/dev/disk/by-id/nvme-WDS500G2X0C-00L350_184634801586

FAST_DISK_1=/dev/disk/by-id/ata-WDC_WDS500G2B0B_184220A00B57
FAST_DISK_2=/dev/disk/by-id/ata-WDC_WDS500G2B0B_184301A00645

DATA_DISK_1=/dev/disk/by-id/scsi-SATA_HGST_HUS726T4TAL_V6GGTPKS
DATA_DISK_2=/dev/disk/by-id/scsi-SATA_HGST_HUS726T4TAL_V1JBN0GH
DATA_DISK_3=/dev/disk/by-id/scsi-SATA_HGST_HUS726T4TAL_V6H42DES
DATA_DISK_4=/dev/disk/by-id/scsi-SATA_HGST_HUS726T4TAL_V6GGRKVS

BEST_1=/dev/disk/by-id/ata-WDC_WDS250G2B0B-00YS70_182481801165-part5
BEST_2=/dev/disk/by-id/ata-WDC_WDS250G2B0B-00YS70_182481804949-part5

apt install zfsutils-linux

zpool create -f \
    -o autotrim=on \
    -O acltype=posixacl -O compression=off \
    -O dnodesize=auto -O normalization=formD -O atime=off -O dedup=off \
    -O xattr=sa \
    best "${BEST_1}" "${BEST_2}"

zpool create -f \
    -o autotrim=on \
    -O acltype=posixacl -O compression=lz4 \
    -O dnodesize=auto -O normalization=formD -O atime=off -O dedup=on \
    -O xattr=sa \
    fast mirror "${FAST_DISK_1}" "${FAST_DISK_2}"

zpool create -f \
    -O acltype=posixacl -O compression=zstd \
    -O dnodesize=auto -O normalization=formD -O atime=off -O dedup=on \
    -O xattr=sa \
    data raidz ${DATA_DISK_1} ${DATA_DISK_2} ${DATA_DISK_3} ${DATA_DISK_4}

zpool add data cache ${NVME_DISK}

zfs create fast/home
zfs create fast/home/jj5
zfs create fast/session
zfs set dedup=off fast/session
zfs set compression=zstd fast/session
zfs set mountpoint=/var/log/session fast/session
chmod 1777 /var/log/session

zfs create data/archive
zfs create data/backup
zfs create data/blob
zfs create data/copy
zfs create data/host
zfs create data/image
zfs create data/share

mv /home /home.bak
zfs set mountpoint=/home fast/home
chown jj5:jj5 /home/jj5
shopt -s dotglob;
mv /home.bak/jj5/* /home/jj5/
rmdir /home.bak/jj5
rmdir /home.bak