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--- home_server:home_server_setup:other_services:disk [2020-08-29 Sat wk35 20:19] – [mount] baumkp
+++ home_server:home_server_setup:other_services:disk [2025-09-14 Sun wk37 15:54] (current) – [Block Device Monitoring and Control] baumkp
@@ Line 1: / Line 1: @@
-{{tag>linux ubuntu parted fstab format partion disk mount umount fstab unmount}}
+{{tag>linux debian nfs parted fstab format partion disk mount umount fstab unmount}}
 =======Linux Block Device Notes======
@@ Line 5: / Line 5: @@
 ====Some basic tools====
-''lsblk''  to list partitions (or list block devices)
+  *''ls -l /dev/disk/by-uuid/'' will list the disks with UUIDs
-''lsblk -f'' or ''blkid''  to list the UUIDs
+  *''lsblk''  to list partitions (or list block devices)
+  *''lsblk -f'' or ''blkid''  to list the UUIDs
+  *''sudo blkid'' will list data blocks
 ----
@@ Line 34: / Line 36: @@
 ===Local Device===
-mount -t ext2 /dev/sdb1 /mnt
+**mount -t ext4 /dev/sdb1 /run/media/diska**
 ===NFS Device===
@@ Line 52: / Line 54: @@
 ----
 ====unmount====
-umount /mnt
+''sudo umount /run/media/diska''
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@@ Line 61: / Line 64: @@
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 =====Block Device Monitoring and Control=====
+My main server has a parity disk that is normally only is used once a week.  I would like to place this hard disk in to stand-by to reduce power and wear and tear upon it.
 ====smartmon====
+  * ''sudo smartctl -i -n standby /dev/sdb''  will chack the HD activity mode.  It does this without starting up the drive, which hdparm may do.
+    * If in standby mode it reports back only: "Device is in STANDBY mode, exit(2)" otherwise
+    * ++ active or idel mode|
+<code>smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.12.41+deb13-amd64] (local build)
+Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
+=== START OF INFORMATION SECTION ===
+Model Family:     Western Digital Red Plus
+Device Model:     WDC WD100EFAX-68LHPN0
+Serial Number:    xxxxxx
+LU WWN Device Id: xxxxxxxxx
+Firmware Version: 83.H0A83
+User Capacity:    10,000,831,348,736 bytes [10.0 TB]
+Sector Sizes:     512 bytes logical, 4096 bytes physical
+Rotation Rate:    5400 rpm
+Form Factor:      3.5 inches
+Device is:        In smartctl database 7.3/5804
+ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
+SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
+Local Time is:    Sun Sep 14 11:21:22 2025 AWST
+SMART support is: Available - device has SMART capability.
+SMART support is: Enabled
+Power mode is:    ACTIVE or IDLE</code>
+++
 ----
 ====hdparm====
+  *''sudo hdparm -y /dev/sdb'' sets the HD into standby mode
+To for the HD into standby mode after reboot and set the standby time crate and use an on boot systemd service.
+++++/etc/systemd/system/hdparm.service|
+<code bash>[Unit]
+Description=hdparm sleep
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/hdparm -q -S 120 -y /dev/sdb
+[Install]
+WantedBy=multi-user.target</code>
+++++
+Some tips:
+  *use ''whereis hdparm'' to confirm where the command is installed.
+  *use ''sudo apt install hdparm'' to install if required
+  *use ''sudo systemctl daemon-reload'' after modifying or creating a new systemd service to update systemd configuration
+  *use ''sudo systemctl status hdparm.service'' to see status of service and enable if required.
+====idle3-tools====
+[[https://idle3-tools.sourceforge.net/|idle3-tools]] provides a linux/unix utility that can disable, get and set the value of the infamous idle3 timer found on recent Western Digital Hard Disk Drives.
+  *[[https://man.archlinux.org/man/idle3ctl.8|IDLE3CTL(8)]] man page from Archlinux
+====References====
+  *[[https://www.digitalocean.com/community/tutorials/how-to-partition-and-format-storage-devices-in-linux|How To Partition and Format Storage Devices in Linux]]
 ----