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ashic

Member

Registered: 2020-01-22

Posts: 68

Sandisk Extreme Pro 2TB 1GBPS SSD freezing intermittently

I just got a 2TB Sandisk Extreme Pro 1GBPS external SSD. When connected to my laptop's USB port (or thunderbolt port), it appears fine, and I can read and write to it. However, every few minutes, it completely freezes. This is while using a file manager like Dolphin, or using an application like Darktable. After a while, the application is "unfrozen", and continues to work as normal, until it freezes again. I also have a 1TB Samsung T5, and it doesn't exhibit such freezing. Running

sudo hdparm -I /dev/sda

I get

/dev/sda:
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

ATA device, with non-removable media
Standards:
	Likely used: 1
Configuration:
	Logical		max	current
	cylinders	0	0
	heads		0	0
	sectors/track	0	0
	--
	Logical/Physical Sector size:             512 bytes
	device size with M = 1024*1024:           0 MBytes
	device size with M = 1000*1000:           0 MBytes 
	cache/buffer size  = unknown
Capabilities:
	IORDY not likely
	Cannot perform double-word IO
	R/W multiple sector transfer: not supported
	DMA: not supported
	PIO: pio0 

I don't know where to start in debugging the freezes. Any help is appreciated.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,769

Re: Sandisk Extreme Pro 2TB 1GBPS SSD freezing intermittently

I would start by reading your logs.   Try dmesg and journalctl -b after a freeze.

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ashic

Member

Registered: 2020-01-22

Posts: 68

Re: Sandisk Extreme Pro 2TB 1GBPS SSD freezing intermittently

Hmm... interesting... the freezes only happen when connected to the laptop's thunderbolt port. When connected to a normal USB 3 fat port, it's fine.

I'll try checking journalctl.