Changes between Initial Version and Version 1 of Disks

Timestamp:

01/10/24 12:15:29 (11 months ago)

Author:

ypap

Comment:

--

Disks

@@ +1 @@
+== How to check a disk's health ==
+
+==== SATA Disks ====
+
+To check a SATA Disk (either HDD or SSD) we can use the `smartctl` utility:
+
+ * Install with: `apt install smartmontools`
+ * `smartctl -a /dev/sdX` to see all the information about the disk
+ * `smartctl -t <short|long> /dev/sdX` to run a short or long test
+ * `smartctl -X /dev/sdX` to abort a test
+
+==== NVMe disks ====
+
+`smartctl` can work for NVMe disks but cannot run any tests like above.
+
+We can use the `nvme` utility to see information about nvme disks.
+
+ * Install with: `apt install nvme-cli`
+ * `nvme list` shows the nvme disks on the machine
+ * `nvme smart-log /dev/nvmeXnX` shows the SMART information about the disk.
+
+More info on the `nvme` utility: [https://nvmexpress.org/open-source-nvme-management-utility-nvme-command-line-interface-nvme-cli/ here]
+
+==== Check disk r/w speed ====
+
+Read speed: `hdparm -tT /dev/sdX` (or `nvmeXnX`)
+Write speed: `dd if=/dev/zero of=test bs=1G count=1 oflag=direct` (`test` must be on the disk)
+
+==== badblocks ====
+
+We can check for bad blocks through (works with NVMe and SATA):
+`badblocks -v -o output_file /dev/sdX`