Add GPFS storage expansion toolkit

2026-05-05 21:40:46 +00:00
parent c42d8bfb8f
commit 5dd8c34952
11 changed files with 925 additions and 0 deletions
@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=00_env.sh
+. "$SCRIPT_DIR/00_env.sh"
+
+DEVICES=""
+SERVERS=""
+OUTPUT=""
+
+usage() {
+  printf 'Usage: %s --fs <filesystem> --devices "/dev/sdb /dev/sdc" --servers "node1,node2" --failure-group <number> --pool <storage_pool> --usage <dataOnly|metadataOnly|dataAndMetadata> [--output <path>]\n' "$(basename "$0")"
+}
+
+while [[ "$#" -gt 0 ]]; do
+  case "$1" in
+    --fs) FILESYSTEM="${2:-}"; shift 2 ;;
+    --devices) DEVICES="${2:-}"; shift 2 ;;
+    --servers) SERVERS="${2:-}"; shift 2 ;;
+    --failure-group) FAILURE_GROUP="${2:-}"; shift 2 ;;
+    --pool) STORAGE_POOL="${2:-}"; shift 2 ;;
+    --usage) USAGE="${2:-}"; shift 2 ;;
+    --output) OUTPUT="${2:-}"; shift 2 ;;
+    -h|--help) usage; exit 0 ;;
+    *) critical "Unknown argument: $1"; usage; exit 2 ;;
+  esac
+done
+
+if [[ -z "$FILESYSTEM" || -z "$DEVICES" || -z "$SERVERS" || -z "$FAILURE_GROUP" || -z "$STORAGE_POOL" || -z "$USAGE" ]]; then
+  critical "Missing required input"
+  usage
+  exit 2
+fi
+
+if ! [[ "$FAILURE_GROUP" =~ ^-?[0-9]+$ ]]; then
+  critical "--failure-group must be an integer"
+  exit 2
+fi
+
+if ! usage_value_valid "$USAGE"; then
+  critical "--usage must be one of: dataOnly, metadataOnly, dataAndMetadata"
+  exit 2
+fi
+
+if [[ -z "$OUTPUT" ]]; then
+  OUTPUT="/tmp/gpfs_nsd_${FILESYSTEM}_${TIMESTAMP}.stanza"
+fi
+
+safe_fs="$(printf '%s' "$FILESYSTEM" | tr -c '[:alnum:]_' '_')"
+
+{
+  printf '# Generated GPFS NSD stanza for filesystem %s\n' "$FILESYSTEM"
+  printf '# Review with storage and cluster teams before use.\n\n'
+  for device in $DEVICES; do
+    if [[ "$device" != /dev/* ]]; then
+      critical "Device must be an absolute /dev path: $device"
+      exit 2
+    fi
+
+    device_base="$(basename "$device" | tr -c '[:alnum:]_' '_')"
+    nsd_name="nsd_${safe_fs}_${device_base}"
+    printf '%%nsd:\n'
+    printf '  device=%s\n' "$device"
+    printf '  nsd=%s\n' "$nsd_name"
+    printf '  servers=%s\n' "$SERVERS"
+    printf '  usage=%s\n' "$USAGE"
+    printf '  failureGroup=%s\n' "$FAILURE_GROUP"
+    printf '  pool=%s\n\n' "$STORAGE_POOL"
+  done
+} > "$OUTPUT"
+
+ok "Generated NSD stanza: $OUTPUT"
+warning "This script only writes a stanza file. It does not create NSDs or modify GPFS."