From d366f450d6a2ee8eaf79f336c17008b19ad64543 Mon Sep 17 00:00:00 2001
From: kneutron <50146127+kneutron@users.noreply.github.com>
Date: Tue, 13 Jul 2021 00:15:04 -0500
Subject: [PATCH] Add files via upload

---
 ZFS/drive-slicer-get-longform.sh | 41 ++++++++++++++++++++++++++++++++
 ZFS/zfs-drive-slicer.sh          | 18 +++++++++-----
 2 files changed, 53 insertions(+), 6 deletions(-)
 create mode 100644 ZFS/drive-slicer-get-longform.sh

diff --git a/ZFS/drive-slicer-get-longform.sh b/ZFS/drive-slicer-get-longform.sh
new file mode 100644
index 0000000..9af69d8
--- /dev/null
+++ b/ZFS/drive-slicer-get-longform.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# 2021 Dave Bechtel
+# REQUIRES output file from zfs-drive-slicer.sh, sed, awk, grep, head
+
+# Translate short-form disks
+#sdb   sdc   sdd   sde   sdf   sdg   sdh   sdi   sdj   sdk   sdl   
+# To long-form:
+#pci-0000:00:16.0-sas-phy0-lun-0   pci-0000:00:16.0-sas-phy1-lun-0   pci-0000:00:16.0-sas-phy2-lun-0   pci-0000:00:16.0-sas-phy3-lun-0   pci-0000:00:16.0-sas-phy4-lun-0   pci-0000:00:16.0-sas-phy5-lun-0   pci-0000:00:16.0-sas-phy6-lun-0   pci-0000:00:16.0-sas-phy7-lun-0   pci-0000:00:16.0-sas-phy8-lun-0   pci-0000:00:16.0-sas-phy9-lun-0   pci-0000:00:16.0-sas-phy10-lun-0
+
+# Useful when creating ZFS arrays
+# Pseudocode:
+# get zfs-drive-slicer output file
+# use sed to delete line cont chars out
+# read a line
+## for every word in line; lookup + print dev/disk/by-path equivalent  no-newline
+# at line end print line continuation char
+
+DBP=/dev/disk/by-path
+DBI=/dev/disk/by-id
+usetype=$DBP
+# ^^ TODO EDITME
+
+# NOTE WARNING when using SAS disks we are NOT guaranteed an entry in disk-by-id!
+
+infile=/tmp/zfsds.txt
+[ "$1" = "" ] || infile="$1" # override, if 1st arg passed
+
+sed -i 's/\\//g' "$infile"   # remove line-continuation chars
+
+# set -x  ## DEBUG
+while read inline; do
+  for word in $inline; do
+    printf $(ls -l $usetype |grep -w /$word |awk '{print $9}' |head -n 1)" "
+  done
+  echo ' \'
+done < $infile
+# NOTE ^^ this may be inaccurate, no error checking for missing disks, just print what we find
+
+#lrwxrwxrwx 1 root root  9 Jul 12 23:10 pci-0000:00:16.0-sas-phy9-lun-0 -> ../../sdk
+# 1         2 3    4     5 j   7  8     9
diff --git a/ZFS/zfs-drive-slicer.sh b/ZFS/zfs-drive-slicer.sh
index 66f5cb6..7ba70d5 100644
--- a/ZFS/zfs-drive-slicer.sh
+++ b/ZFS/zfs-drive-slicer.sh
@@ -4,12 +4,13 @@
 # DONE [b..y] a[a..x] get slices of X disks and be able to verify with wc -w
 # REQUIRES: seq
 
-echo "$0 - 2021 Dave Bechtel"
-echo "Pass arg1=total disks in pool -- arg2=how many disks per vdev" 
-# NOTE arg2 ^^ should factor in the RAIDz level 1/2/3 desired to sustain X number of failed disks per vdev + vspares, 
-#  dont go too narrow or will lose capacity
-
-echo "NOTE output lines should be the same number of devices to balance"
+# Trick to put header outside of col -t
+>&2 echo "$0 - 2021 Dave Bechtel" 
+>&2 echo "Pass arg1=total disks in pool -- arg2=how many disks per vdev" 
+>&2 echo "+ NOTE arg2 ^^ should factor in the RAIDz level 1/2/3 desired to sustain X number" 
+>&2 echo "+ of failed disks per vdev + vspares, dont go too narrow or will lose capacity" 
+>&2 echo "NOTE output lines should be the same number of devices to balance"
+>&2 echo "PROTIP: Pipe output to  column -t  to make it look nice" 
 
 # REF: https://tldp.org/LDP/abs/html/arrays.html
 # regular array - STARTS AT 0
@@ -112,3 +113,8 @@ slice $1 $2
 #      14
 #      14
 #      14
+
+
+# HOWTO get long-form disks:
+# use drive-slicer-get-longform.sh
+# ^ Requires output from this script