See everything and the kitchen sink about your harddrive

Ever wondered what specifications your harddisk/SSD actually has? hdparm is your best friend here. I wondered whether my Corsair SSD actually had TRIM supported/enabled, and this is what sudo hdparm -I /dev/sda (of course, replace /dev/sda with w/e your desired device node is) got me:

/dev/sda:

ATA device, with non-removable media
	Model Number:       Corsair CMFSSD-128D1
	Serial Number:      1044318XXXXXXdeleted
	Firmware Revision:  2.0
Standards:
	Supported: 8 7 6 5
	Likely used: 8
Configuration:
	Logical		max	current
	cylinders	16383	16383
	heads		16	16
	sectors/track	63	63
	--
	CHS current addressable sectors:   16514064
	LBA    user addressable sectors:  250069680
	LBA48  user addressable sectors:  250069680
	Logical  Sector size:                   512 bytes
	Physical Sector size:                   512 bytes
	device size with M = 1024*1024:      122104 MBytes
	device size with M = 1000*1000:      128035 MBytes (128 GB)
	cache/buffer size  = unknown
	Nominal Media Rotation Rate: Solid State Device
Capabilities:
	LBA, IORDY(can be disabled)
	Queue depth: 32
	Standby timer values: spec'd by Standard, no device specific minimum
	R/W multiple sector transfer: Max = 1	Current = 1
	DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
	     Cycle time: min=120ns recommended=120ns
	PIO: pio0 pio1 pio2 pio3 pio4
	     Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
	Enabled	Supported:
	   *	SMART feature set
	    	Security Mode feature set
	   *	Power Management feature set
	   *	Write cache
	   *	Look-ahead
	   *	Host Protected Area feature set
	   *	WRITE_BUFFER command
	   *	READ_BUFFER command
	   *	DOWNLOAD_MICROCODE
	    	SET_MAX security extension
	   *	48-bit Address feature set
	   *	Device Configuration Overlay feature set
	   *	Mandatory FLUSH_CACHE
	   *	FLUSH_CACHE_EXT
	   *	SMART self-test
	   *	General Purpose Logging feature set
	   *	Gen1 signaling speed (1.5Gb/s)
	   *	Gen2 signaling speed (3.0Gb/s)
	   *	Native Command Queueing (NCQ)
	   *	Phy event counters
	   *	DMA Setup Auto-Activate optimization
	    	Device-initiated interface power management
	   *	Software settings preservation
	   *	Data Set Management TRIM supported (limit unknown)
	   *	Deterministic read data after TRIM
Security:
		supported
	not	enabled
	not	locked
	not	frozen
	not	expired: security count
	not	supported: enhanced erase
Checksum: correct

Seriously? Awesome. Never knew about this, good to know. Might come in handy again.

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